diff --git a/examples/apollo-server/Query.ts b/examples/apollo-server/Query.ts
index da4db98f..611d5fbd 100644
--- a/examples/apollo-server/Query.ts
+++ b/examples/apollo-server/Query.ts
@@ -1,5 +1,5 @@
-import IPerson from "./interfaces/IPerson";
-import User from "./models/User";
+import IPerson from "./interfaces/IPerson.js";
+import User from "./models/User.js";
 
 /** @gqlQueryField */
 export function person(): IPerson {
diff --git a/examples/apollo-server/models/Group.ts b/examples/apollo-server/models/Group.ts
index 9e672ad3..083ed7a9 100644
--- a/examples/apollo-server/models/Group.ts
+++ b/examples/apollo-server/models/Group.ts
@@ -1,4 +1,4 @@
-import User from "./User";
+import User from "./User.js";
 
 /** @gqlType */
 export default class Group {
diff --git a/examples/apollo-server/models/User.ts b/examples/apollo-server/models/User.ts
index e529f742..9528528d 100644
--- a/examples/apollo-server/models/User.ts
+++ b/examples/apollo-server/models/User.ts
@@ -1,5 +1,5 @@
-import IPerson from "../interfaces/IPerson";
-import Group from "./Group";
+import IPerson from "../interfaces/IPerson.js";
+import Group from "./Group.js";
 
 /** @gqlType User */
 export default class UserResolver implements IPerson {
diff --git a/examples/apollo-server/package.json b/examples/apollo-server/package.json
index 22047c24..3b98cf90 100644
--- a/examples/apollo-server/package.json
+++ b/examples/apollo-server/package.json
@@ -2,6 +2,7 @@
   "name": "grats-example-apollo-server",
   "version": "0.0.0",
   "description": "Example server showcasing Grats used with Apollo Server",
+  "type": "module",
   "main": "index.js",
   "scripts": {
     "start": "tsc && node dist/server.js",
@@ -28,7 +29,7 @@
   "dependencies": {
     "@apollo/server": "^5.0.0",
     "@types/node": "^20.8.10",
-    "graphql": "16.11.0"
+    "graphql": "17.0.0-alpha.11"
   },
   "devDependencies": {
     "grats": "workspace:*",
diff --git a/examples/apollo-server/schema.ts b/examples/apollo-server/schema.ts
index 0b003593..02f6597b 100644
--- a/examples/apollo-server/schema.ts
+++ b/examples/apollo-server/schema.ts
@@ -3,11 +3,11 @@
  * Do not manually edit. Regenerate by running `npx grats`.
  */
 
-import UserClass from "./models/User";
-import queryAllUsersResolver from "./models/User";
-import queryMeResolver from "./models/User";
+import UserClass from "./models/User.js";
+import queryAllUsersResolver from "./models/User.js";
+import queryMeResolver from "./models/User.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLList, GraphQLString, GraphQLInterfaceType } from "graphql";
-import { person as queryPersonResolver } from "./Query";
+import { person as queryPersonResolver } from "./Query.js";
 export function getSchema(): GraphQLSchema {
     const GroupType: GraphQLObjectType = new GraphQLObjectType({
         name: "Group",
diff --git a/examples/apollo-server/server.ts b/examples/apollo-server/server.ts
index a1a80e98..e2276d3d 100644
--- a/examples/apollo-server/server.ts
+++ b/examples/apollo-server/server.ts
@@ -1,6 +1,6 @@
 import { ApolloServer } from "@apollo/server";
 import { startStandaloneServer } from "@apollo/server/standalone";
-import { getSchema } from "./schema";
+import { getSchema } from "./schema.js";
 
 async function main() {
   const server = new ApolloServer({ schema: getSchema() });
diff --git a/examples/express-graphql-http/interfaces/IPerson.ts b/examples/express-graphql-http/interfaces/IPerson.ts
index 21cbc43c..1be795f1 100644
--- a/examples/express-graphql-http/interfaces/IPerson.ts
+++ b/examples/express-graphql-http/interfaces/IPerson.ts
@@ -1,4 +1,4 @@
-import User from "../models/User";
+import User from "../models/User.js";
 
 /** @gqlInterface */
 export default interface IPerson {
diff --git a/examples/express-graphql-http/models/Group.ts b/examples/express-graphql-http/models/Group.ts
index 9e672ad3..083ed7a9 100644
--- a/examples/express-graphql-http/models/Group.ts
+++ b/examples/express-graphql-http/models/Group.ts
@@ -1,4 +1,4 @@
-import User from "./User";
+import User from "./User.js";
 
 /** @gqlType */
 export default class Group {
diff --git a/examples/express-graphql-http/models/User.ts b/examples/express-graphql-http/models/User.ts
index cea29b75..858b38e5 100644
--- a/examples/express-graphql-http/models/User.ts
+++ b/examples/express-graphql-http/models/User.ts
@@ -1,5 +1,5 @@
-import IPerson from "../interfaces/IPerson";
-import Group from "./Group";
+import IPerson from "../interfaces/IPerson.js";
+import Group from "./Group.js";
 
 /** @gqlType */
 export default class User implements IPerson {
diff --git a/examples/express-graphql-http/package.json b/examples/express-graphql-http/package.json
index 5fefda47..0f87cbf6 100644
--- a/examples/express-graphql-http/package.json
+++ b/examples/express-graphql-http/package.json
@@ -2,6 +2,7 @@
   "name": "grats-example-express-graphql-http",
   "version": "0.0.0",
   "description": "Example server showcasing Grats used with Express and graphql-http ",
+  "type": "module",
   "main": "index.js",
   "scripts": {
     "start": "tsc && node dist/server.js",
@@ -30,7 +31,7 @@
     "@types/express": "^4.17.20",
     "@types/node": "^20.8.10",
     "express": "^4.18.2",
-    "graphql": "16.8.1",
+    "graphql": "17.0.0-alpha.11",
     "graphql-http": "^1.22.0"
   },
   "devDependencies": {
diff --git a/examples/express-graphql-http/schema.ts b/examples/express-graphql-http/schema.ts
index c0446b29..ea09bc5e 100644
--- a/examples/express-graphql-http/schema.ts
+++ b/examples/express-graphql-http/schema.ts
@@ -3,11 +3,11 @@
  * Do not manually edit. Regenerate by running `npx grats`.
  */
 
-import UserClass from "./models/User";
-import queryAllUsersResolver from "./models/User";
-import queryMeResolver from "./models/User";
+import UserClass from "./models/User.js";
+import queryAllUsersResolver from "./models/User.js";
+import queryMeResolver from "./models/User.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLList, GraphQLString, GraphQLInterfaceType } from "graphql";
-import { person as queryPersonResolver } from "./interfaces/IPerson";
+import { person as queryPersonResolver } from "./interfaces/IPerson.js";
 export function getSchema(): GraphQLSchema {
     const GroupType: GraphQLObjectType = new GraphQLObjectType({
         name: "Group",
diff --git a/examples/express-graphql-http/server.ts b/examples/express-graphql-http/server.ts
index e2d6830e..db9645f3 100644
--- a/examples/express-graphql-http/server.ts
+++ b/examples/express-graphql-http/server.ts
@@ -1,6 +1,6 @@
-import * as express from "express";
+import express from "express";
 import { createHandler } from "graphql-http/lib/use/express";
-import { getSchema } from "./schema";
+import { getSchema } from "./schema.js";
 
 const app = express();
 
diff --git a/examples/express-graphql-http/tsconfig.json b/examples/express-graphql-http/tsconfig.json
index 3b3157a9..7869c561 100644
--- a/examples/express-graphql-http/tsconfig.json
+++ b/examples/express-graphql-http/tsconfig.json
@@ -1,17 +1,14 @@
 {
-  // Most ts-node options can be specified here using their programmatic names.
-  "ts-node": {
-    "files": true,
-    // It is faster to skip typechecking.
-    // Remove if you want ts-node to do typechecking.
-    "transpileOnly": false
-  },
   "grats": {
     "nullableByDefault": false
   },
   "compilerOptions": {
     "outDir": "dist",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "target": "esnext",
     "lib": ["esnext"],
-    "strict": true
+    "strict": true,
+    "skipLibCheck": true
   }
 }
diff --git a/examples/incremental-migration/package.json b/examples/incremental-migration/package.json
index 0ad24d75..c2b36b88 100644
--- a/examples/incremental-migration/package.json
+++ b/examples/incremental-migration/package.json
@@ -2,6 +2,7 @@
   "name": "grats-example-migration",
   "version": "0.0.0",
   "description": "Example server showcasing an incremental migration from Pothos to Grats",
+  "type": "module",
   "main": "index.js",
   "scripts": {
     "start": "tsc && node dist/server.js",
@@ -33,7 +34,7 @@
     "@faker-js/faker": "^8.4.1",
     "@graphql-tools/schema": "^10.0.3",
     "@pothos/core": "^3.41.1",
-    "graphql": "16.8.1",
+    "graphql": "17.0.0-alpha.11",
     "graphql-yoga": "^5.0.0",
     "typescript": "^5.5.4"
   },
diff --git a/examples/incremental-migration/schemas/gratsGeneratedSchema.ts b/examples/incremental-migration/schemas/gratsGeneratedSchema.ts
index 8f8a52c9..ab41ce35 100644
--- a/examples/incremental-migration/schemas/gratsGeneratedSchema.ts
+++ b/examples/incremental-migration/schemas/gratsGeneratedSchema.ts
@@ -1,7 +1,7 @@
 // DO NOT USE DIRECTLY. Prefer the merged schema in `./mergedSchema.ts`.
 
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLString, GraphQLID } from "graphql";
-import { user as queryUserResolver } from "./../models";
+import { user as queryUserResolver } from "./../models.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/examples/incremental-migration/schemas/mergedSchema.ts b/examples/incremental-migration/schemas/mergedSchema.ts
index 1a28fffc..6ad656e5 100644
--- a/examples/incremental-migration/schemas/mergedSchema.ts
+++ b/examples/incremental-migration/schemas/mergedSchema.ts
@@ -1,9 +1,13 @@
-import { schema as legacySchema } from "./pothosSchema";
-import { getSchema as getGratsSchema } from "./gratsGeneratedSchema";
+import { schema as legacySchema } from "./pothosSchema.js";
+import { getSchema as getGratsSchema } from "./gratsGeneratedSchema.js";
 import { mergeSchemas } from "@graphql-tools/schema";
 import { printSchema, lexicographicSortSchema } from "graphql";
 import fs from "fs";
 import path from "path";
+import { fileURLToPath } from "url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 /**
  * Merges the Pothos (legacy) and Grats (new) schemas into a single schema for
diff --git a/examples/incremental-migration/schemas/pothosSchema.ts b/examples/incremental-migration/schemas/pothosSchema.ts
index 91baa0b4..57454492 100644
--- a/examples/incremental-migration/schemas/pothosSchema.ts
+++ b/examples/incremental-migration/schemas/pothosSchema.ts
@@ -1,4 +1,4 @@
-import { Users, Posts, Comments, User, Post, Comment } from "../models";
+import { Users, Posts, Comments, User, Post, Comment } from "../models.js";
 import SchemaBuilder from "@pothos/core";
 const builder = new SchemaBuilder({});
 
diff --git a/examples/incremental-migration/server.ts b/examples/incremental-migration/server.ts
index b6c89556..74a0d60e 100644
--- a/examples/incremental-migration/server.ts
+++ b/examples/incremental-migration/server.ts
@@ -1,6 +1,6 @@
 import { createServer } from "node:http";
 import { createYoga } from "graphql-yoga";
-import { schema } from "./schemas/mergedSchema";
+import { schema } from "./schemas/mergedSchema.js";
 
 const yoga = createYoga({ schema });
 
diff --git a/examples/next-js/package.json b/examples/next-js/package.json
index c08a13e5..eba76fac 100644
--- a/examples/next-js/package.json
+++ b/examples/next-js/package.json
@@ -30,7 +30,7 @@
   },
   "homepage": "https://github.com/captbaritone/grats#readme",
   "dependencies": {
-    "graphql": "^16.8.1",
+    "graphql": "17.0.0-alpha.11",
     "graphql-yoga": "^5.0.0",
     "next": "14.0.3",
     "react": "^18",
diff --git a/examples/next-js/tsconfig.json b/examples/next-js/tsconfig.json
index a1f82ceb..2dc730ae 100644
--- a/examples/next-js/tsconfig.json
+++ b/examples/next-js/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "grats": {
-    "nullableByDefault": false
+    "nullableByDefault": false,
+    "importModuleSpecifierEnding": ""
   },
   "compilerOptions": {
     "target": "es5",
diff --git a/examples/production-app/Database.ts b/examples/production-app/Database.ts
index f5422715..2f94aa71 100644
--- a/examples/production-app/Database.ts
+++ b/examples/production-app/Database.ts
@@ -1,8 +1,8 @@
-import { PubSub } from "./PubSub";
-import { VC } from "./ViewerContext";
-import { Like } from "./models/Like";
-import { Post } from "./models/Post";
-import { User } from "./models/User";
+import { PubSub } from "./PubSub.js";
+import { VC } from "./ViewerContext.js";
+import { Like } from "./models/Like.js";
+import { Post } from "./models/Post.js";
+import { User } from "./models/User.js";
 
 /**
  * This module is intended to represent a database.
diff --git a/examples/production-app/ViewerContext.ts b/examples/production-app/ViewerContext.ts
index 77969684..3fccc2e3 100644
--- a/examples/production-app/ViewerContext.ts
+++ b/examples/production-app/ViewerContext.ts
@@ -1,9 +1,9 @@
 import DataLoader from "dataloader";
-import { getPostsByIds, getUsersByIds, getLikesByIds } from "./Database";
+import { getPostsByIds, getUsersByIds, getLikesByIds } from "./Database.js";
 import { YogaInitialContext } from "graphql-yoga";
-import { Post } from "./models/Post";
-import { User } from "./models/User";
-import { Like } from "./models/Like";
+import { Post } from "./models/Post.js";
+import { User } from "./models/User.js";
+import { Like } from "./models/Like.js";
 
 /**
  * Viewer Context
diff --git a/examples/production-app/graphql/CustomScalars.ts b/examples/production-app/graphql/CustomScalars.ts
index c6989f3a..21aada62 100644
--- a/examples/production-app/graphql/CustomScalars.ts
+++ b/examples/production-app/graphql/CustomScalars.ts
@@ -1,5 +1,5 @@
 import { Kind } from "graphql";
-import type { SchemaConfig } from "../schema";
+import type { SchemaConfig } from "../schema.js";
 
 // TODO: Consider switching serialization to follow https://ibm.github.io/graphql-specs/custom-scalars/date.html
 
diff --git a/examples/production-app/graphql/Node.ts b/examples/production-app/graphql/Node.ts
index 739807dd..602dccf4 100644
--- a/examples/production-app/graphql/Node.ts
+++ b/examples/production-app/graphql/Node.ts
@@ -1,6 +1,6 @@
 import { fromGlobalId, toGlobalId } from "graphql-relay";
 import { ID } from "grats";
-import { VC } from "../ViewerContext";
+import { VC } from "../ViewerContext.js";
 
 /**
  * Converts a globally unique ID into a local ID asserting
diff --git a/examples/production-app/graphql/directives.ts b/examples/production-app/graphql/directives.ts
index 9778b5ac..2530f56e 100644
--- a/examples/production-app/graphql/directives.ts
+++ b/examples/production-app/graphql/directives.ts
@@ -1,6 +1,6 @@
 import { defaultFieldResolver, GraphQLError, GraphQLSchema } from "graphql";
 import { Int } from "grats";
-import { Ctx } from "../ViewerContext";
+import { Ctx } from "../ViewerContext.js";
 import { getDirective, MapperKind, mapSchema } from "@graphql-tools/utils";
 
 /**
diff --git a/examples/production-app/models/Like.ts b/examples/production-app/models/Like.ts
index 8c5f99e7..4f7ae6cd 100644
--- a/examples/production-app/models/Like.ts
+++ b/examples/production-app/models/Like.ts
@@ -1,11 +1,11 @@
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { GraphQLNode, getLocalTypeAssert } from "../graphql/Node";
-import { User } from "./User";
-import { Model } from "./Model";
-import { ID } from "../../../dist/src";
-import { GqlDate } from "../graphql/CustomScalars";
-import { Post } from "./Post";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { GraphQLNode, getLocalTypeAssert } from "../graphql/Node.js";
+import { User } from "./User.js";
+import { Model } from "./Model.js";
+import { ID } from "../../../dist/src/index.js";
+import { GqlDate } from "../graphql/CustomScalars.js";
+import { Post } from "./Post.js";
 
 /**
  * A reaction from a user indicating that they like a post.
diff --git a/examples/production-app/models/LikeConnection.ts b/examples/production-app/models/LikeConnection.ts
index 0ccf9dae..d34047df 100644
--- a/examples/production-app/models/LikeConnection.ts
+++ b/examples/production-app/models/LikeConnection.ts
@@ -1,11 +1,11 @@
 import { GqlInfo, Int } from "grats";
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { Like } from "./Like";
-import { PageInfo } from "../graphql/Connection";
-import { PubSub } from "../PubSub";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { Like } from "./Like.js";
+import { PageInfo } from "../graphql/Connection.js";
+import { PubSub } from "../PubSub.js";
 import { filter, map, pipe } from "graphql-yoga";
-import { getLocalTypeAssert } from "../graphql/Node";
+import { getLocalTypeAssert } from "../graphql/Node.js";
 import { connectionFromSelectOrCount } from "../graphql/gqlUtils.js";
 
 /** @gqlType */
diff --git a/examples/production-app/models/Model.ts b/examples/production-app/models/Model.ts
index 71061319..a990f9c9 100644
--- a/examples/production-app/models/Model.ts
+++ b/examples/production-app/models/Model.ts
@@ -1,4 +1,4 @@
-import { VC } from "../ViewerContext";
+import { VC } from "../ViewerContext.js";
 
 /**
  * Generic model class built around a database row
diff --git a/examples/production-app/models/Post.ts b/examples/production-app/models/Post.ts
index f39fa42f..50d1711b 100644
--- a/examples/production-app/models/Post.ts
+++ b/examples/production-app/models/Post.ts
@@ -1,11 +1,11 @@
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { GraphQLNode, getLocalTypeAssert } from "../graphql/Node";
-import { User } from "./User";
-import { Model } from "./Model";
-import { GqlInfo, ID, Int } from "../../../dist/src";
-import { GqlDate } from "../graphql/CustomScalars";
-import { LikeConnection } from "./LikeConnection";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { GraphQLNode, getLocalTypeAssert } from "../graphql/Node.js";
+import { User } from "./User.js";
+import { Model } from "./Model.js";
+import { GqlInfo, ID, Int } from "../../../dist/src/index.js";
+import { GqlDate } from "../graphql/CustomScalars.js";
+import { LikeConnection } from "./LikeConnection.js";
 import { connectionFromSelectOrCount } from "../graphql/gqlUtils.js";
 
 /**
diff --git a/examples/production-app/models/PostConnection.ts b/examples/production-app/models/PostConnection.ts
index 8c4db6d7..90f449dc 100644
--- a/examples/production-app/models/PostConnection.ts
+++ b/examples/production-app/models/PostConnection.ts
@@ -1,8 +1,8 @@
 import { GqlInfo, Int } from "grats";
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { Post } from "./Post";
-import { Connection } from "../graphql/Connection";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { Post } from "./Post.js";
+import { Connection } from "../graphql/Connection.js";
 import { connectionFromSelectOrCount } from "../graphql/gqlUtils.js";
 
 /**
diff --git a/examples/production-app/models/User.ts b/examples/production-app/models/User.ts
index f0f526de..eee087c3 100644
--- a/examples/production-app/models/User.ts
+++ b/examples/production-app/models/User.ts
@@ -1,9 +1,9 @@
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { GraphQLNode } from "../graphql/Node";
-import { Model } from "./Model";
-import { Post } from "./Post";
-import { Connection } from "../graphql/Connection";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { GraphQLNode } from "../graphql/Node.js";
+import { Model } from "./Model.js";
+import { Post } from "./Post.js";
+import { Connection } from "../graphql/Connection.js";
 import { GqlInfo, Int } from "../../../dist/src/Types.js";
 import { connectionFromSelectOrCount } from "../graphql/gqlUtils.js";
 
diff --git a/examples/production-app/models/UserConnection.ts b/examples/production-app/models/UserConnection.ts
index ed4289ba..d5d7b14e 100644
--- a/examples/production-app/models/UserConnection.ts
+++ b/examples/production-app/models/UserConnection.ts
@@ -1,8 +1,8 @@
 import { GqlInfo, Int } from "grats";
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { User } from "./User";
-import { Connection } from "../graphql/Connection";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { User } from "./User.js";
+import { Connection } from "../graphql/Connection.js";
 import { connectionFromSelectOrCount } from "../graphql/gqlUtils.js";
 
 /**
diff --git a/examples/production-app/models/Viewer.ts b/examples/production-app/models/Viewer.ts
index 95474948..c7162488 100644
--- a/examples/production-app/models/Viewer.ts
+++ b/examples/production-app/models/Viewer.ts
@@ -1,7 +1,7 @@
-import * as DB from "../Database";
-import { VC } from "../ViewerContext";
-import { Post } from "./Post";
-import { User } from "./User";
+import * as DB from "../Database.js";
+import { VC } from "../ViewerContext.js";
+import { Post } from "./Post.js";
+import { User } from "./User.js";
 
 /**
  * The currently authenticated viewer.
diff --git a/examples/production-app/package.json b/examples/production-app/package.json
index e923ea9d..f753300d 100644
--- a/examples/production-app/package.json
+++ b/examples/production-app/package.json
@@ -2,6 +2,7 @@
   "name": "grats-production-app-example",
   "version": "0.0.0",
   "description": "Example server showcasing Grats in a feature complete server",
+  "type": "module",
   "main": "index.js",
   "scripts": {
     "start": "tsc && node dist/server.js",
@@ -33,7 +34,7 @@
     "@graphql-tools/utils": "^9.2.1",
     "@graphql-yoga/plugin-defer-stream": "^3.1.1",
     "dataloader": "^2.2.2",
-    "graphql": "16.11.0",
+    "graphql": "17.0.0-alpha.11",
     "graphql-relay": "^0.10.0",
     "graphql-yoga": "^5.16.0",
     "typescript": "^5.5.4"
diff --git a/examples/production-app/schema.ts b/examples/production-app/schema.ts
index df085a55..b77fe4fb 100644
--- a/examples/production-app/schema.ts
+++ b/examples/production-app/schema.ts
@@ -4,17 +4,17 @@
  */
 
 import type { GqlScalar } from "grats";
-import type { GqlDate as DateInternal } from "./graphql/CustomScalars";
+import type { GqlDate as DateInternal } from "./graphql/CustomScalars.js";
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, GraphQLNonNull, GraphQLInt, specifiedDirectives, GraphQLObjectType, GraphQLList, GraphQLString, GraphQLScalarType, GraphQLID, GraphQLInterfaceType, GraphQLBoolean, GraphQLInputObjectType } from "graphql";
-import { id as likeIdResolver, id as userIdResolver, id as postIdResolver, node as queryNodeResolver, nodes as queryNodesResolver } from "./graphql/Node";
-import { nodes as postConnectionNodesResolver, posts as queryPostsResolver } from "./models/PostConnection";
-import { nodes as likeConnectionNodesResolver, likes as queryLikesResolver, postLikes as subscriptionPostLikesResolver } from "./models/LikeConnection";
-import { getVc } from "./ViewerContext";
-import { nodes as userConnectionNodesResolver, users as queryUsersResolver } from "./models/UserConnection";
-import { Viewer as queryViewerResolver } from "./models/Viewer";
-import { createLike as mutationCreateLikeResolver } from "./models/Like";
-import { createPost as mutationCreatePostResolver } from "./models/Post";
-import { createUser as mutationCreateUserResolver } from "./models/User";
+import { id as likeIdResolver, id as userIdResolver, id as postIdResolver, node as queryNodeResolver, nodes as queryNodesResolver } from "./graphql/Node.js";
+import { nodes as postConnectionNodesResolver, posts as queryPostsResolver } from "./models/PostConnection.js";
+import { nodes as likeConnectionNodesResolver, likes as queryLikesResolver, postLikes as subscriptionPostLikesResolver } from "./models/LikeConnection.js";
+import { getVc } from "./ViewerContext.js";
+import { nodes as userConnectionNodesResolver, users as queryUsersResolver } from "./models/UserConnection.js";
+import { Viewer as queryViewerResolver } from "./models/Viewer.js";
+import { createLike as mutationCreateLikeResolver } from "./models/Like.js";
+import { createPost as mutationCreatePostResolver } from "./models/Post.js";
+import { createUser as mutationCreateUserResolver } from "./models/User.js";
 export type SchemaConfig = {
     scalars: {
         Date: GqlScalar<DateInternal>;
diff --git a/examples/production-app/server.ts b/examples/production-app/server.ts
index aae01e51..39e3ecb8 100644
--- a/examples/production-app/server.ts
+++ b/examples/production-app/server.ts
@@ -1,10 +1,10 @@
 import { createServer } from "node:http";
 import { createYoga } from "graphql-yoga";
-import { getSchema } from "./schema";
-import { VC } from "./ViewerContext";
-import { scalarConfig } from "./graphql/CustomScalars";
+import { getSchema } from "./schema.js";
+import { VC } from "./ViewerContext.js";
+import { scalarConfig } from "./graphql/CustomScalars.js";
 import { useDeferStream } from "@graphql-yoga/plugin-defer-stream";
-import { applyCreditLimit } from "./graphql/directives";
+import { applyCreditLimit } from "./graphql/directives.js";
 
 let schema = getSchema({ scalars: scalarConfig });
 schema = applyCreditLimit(schema);
diff --git a/examples/strict-semantic-nullability/interfaces/IPerson.ts b/examples/strict-semantic-nullability/interfaces/IPerson.ts
index 21cbc43c..1be795f1 100644
--- a/examples/strict-semantic-nullability/interfaces/IPerson.ts
+++ b/examples/strict-semantic-nullability/interfaces/IPerson.ts
@@ -1,4 +1,4 @@
-import User from "../models/User";
+import User from "../models/User.js";
 
 /** @gqlInterface */
 export default interface IPerson {
diff --git a/examples/strict-semantic-nullability/models/Group.ts b/examples/strict-semantic-nullability/models/Group.ts
index 9e672ad3..083ed7a9 100644
--- a/examples/strict-semantic-nullability/models/Group.ts
+++ b/examples/strict-semantic-nullability/models/Group.ts
@@ -1,4 +1,4 @@
-import User from "./User";
+import User from "./User.js";
 
 /** @gqlType */
 export default class Group {
diff --git a/examples/strict-semantic-nullability/models/User.ts b/examples/strict-semantic-nullability/models/User.ts
index 034a09a3..1dde3ed8 100644
--- a/examples/strict-semantic-nullability/models/User.ts
+++ b/examples/strict-semantic-nullability/models/User.ts
@@ -1,5 +1,5 @@
-import IPerson from "../interfaces/IPerson";
-import Group from "./Group";
+import IPerson from "../interfaces/IPerson.js";
+import Group from "./Group.js";
 
 /** @gqlType User */
 export default class User implements IPerson {
diff --git a/examples/strict-semantic-nullability/package.json b/examples/strict-semantic-nullability/package.json
index 5842fe43..dfcd3984 100644
--- a/examples/strict-semantic-nullability/package.json
+++ b/examples/strict-semantic-nullability/package.json
@@ -2,6 +2,7 @@
   "name": "grats-example-strict-sematic-nullability",
   "version": "0.0.0",
   "description": "Example server showcasing Grats' experimental support for strict semantic nullability",
+  "type": "module",
   "main": "index.js",
   "scripts": {
     "start": "tsc && node dist/server.js",
@@ -27,7 +28,7 @@
   },
   "homepage": "https://github.com/captbaritone/grats#readme",
   "dependencies": {
-    "graphql": "16.8.1",
+    "graphql": "17.0.0-alpha.11",
     "graphql-yoga": "^5.0.0",
     "typescript": "^5.5.4"
   },
diff --git a/examples/strict-semantic-nullability/schema.ts b/examples/strict-semantic-nullability/schema.ts
index 6fb799b2..e5948402 100644
--- a/examples/strict-semantic-nullability/schema.ts
+++ b/examples/strict-semantic-nullability/schema.ts
@@ -3,12 +3,12 @@
  * Do not manually edit. Regenerate by running `npx grats`.
  */
 
-import UserClass from "./models/User";
-import queryAllUsersResolver from "./models/User";
-import queryMeResolver from "./models/User";
+import UserClass from "./models/User.js";
+import queryAllUsersResolver from "./models/User.js";
+import queryMeResolver from "./models/User.js";
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, GraphQLList, GraphQLInt, specifiedDirectives, GraphQLObjectType, GraphQLNonNull, GraphQLString, defaultFieldResolver, GraphQLInterfaceType } from "graphql";
-import { person as queryPersonResolver } from "./interfaces/IPerson";
-import { countdown as subscriptionCountdownResolver, nullItems as subscriptionNullItemsResolver, nullIterable as subscriptionNullIterableResolver } from "./Subscription";
+import { person as queryPersonResolver } from "./interfaces/IPerson.js";
+import { countdown as subscriptionCountdownResolver, nullItems as subscriptionNullItemsResolver, nullIterable as subscriptionNullIterableResolver } from "./Subscription.js";
 async function assertNonNull<T>(value: T | Promise<T>): Promise<T> {
     const awaited = await value;
     if (awaited == null)
diff --git a/examples/strict-semantic-nullability/server.ts b/examples/strict-semantic-nullability/server.ts
index 3ffa1c21..7a03bd50 100644
--- a/examples/strict-semantic-nullability/server.ts
+++ b/examples/strict-semantic-nullability/server.ts
@@ -1,6 +1,6 @@
 import { createServer } from "node:http";
 import { createYoga } from "graphql-yoga";
-import { getSchema } from "./schema";
+import { getSchema } from "./schema.js";
 
 const yoga = createYoga({
   schema: getSchema(),
diff --git a/examples/yoga/interfaces/IPerson.ts b/examples/yoga/interfaces/IPerson.ts
index 21cbc43c..1be795f1 100644
--- a/examples/yoga/interfaces/IPerson.ts
+++ b/examples/yoga/interfaces/IPerson.ts
@@ -1,4 +1,4 @@
-import User from "../models/User";
+import User from "../models/User.js";
 
 /** @gqlInterface */
 export default interface IPerson {
diff --git a/examples/yoga/models/Group.ts b/examples/yoga/models/Group.ts
index 9e672ad3..083ed7a9 100644
--- a/examples/yoga/models/Group.ts
+++ b/examples/yoga/models/Group.ts
@@ -1,4 +1,4 @@
-import User from "./User";
+import User from "./User.js";
 
 /** @gqlType */
 export default class Group {
diff --git a/examples/yoga/models/User.ts b/examples/yoga/models/User.ts
index 6b1d0fa8..6c563b3d 100644
--- a/examples/yoga/models/User.ts
+++ b/examples/yoga/models/User.ts
@@ -1,5 +1,5 @@
-import IPerson from "../interfaces/IPerson";
-import Group from "./Group";
+import IPerson from "../interfaces/IPerson.js";
+import Group from "./Group.js";
 
 /** @gqlType User */
 export default class User implements IPerson {
diff --git a/examples/yoga/package.json b/examples/yoga/package.json
index 5ca95223..8e70eb27 100644
--- a/examples/yoga/package.json
+++ b/examples/yoga/package.json
@@ -2,6 +2,7 @@
   "name": "grats-example-yoga",
   "version": "0.0.0",
   "description": "Example server showcasing Grats used with Yoga",
+  "type": "module",
   "main": "index.js",
   "scripts": {
     "start": "tsc && node dist/server.js",
@@ -27,7 +28,7 @@
   },
   "homepage": "https://github.com/captbaritone/grats#readme",
   "dependencies": {
-    "graphql": "16.8.1",
+    "graphql": "17.0.0-alpha.11",
     "graphql-yoga": "^5.0.0",
     "typescript": "^5.5.4"
   },
diff --git a/examples/yoga/schema.ts b/examples/yoga/schema.ts
index 2d8515bd..ede983c3 100644
--- a/examples/yoga/schema.ts
+++ b/examples/yoga/schema.ts
@@ -3,12 +3,12 @@
  * Do not manually edit. Regenerate by running `npx grats`.
  */
 
-import UserClass from "./models/User";
-import queryAllUsersResolver from "./models/User";
-import queryMeResolver from "./models/User";
+import UserClass from "./models/User.js";
+import queryAllUsersResolver from "./models/User.js";
+import queryMeResolver from "./models/User.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLList, GraphQLString, GraphQLInterfaceType, GraphQLInt } from "graphql";
-import { person as queryPersonResolver } from "./interfaces/IPerson";
-import { countdown as subscriptionCountdownResolver } from "./Subscription";
+import { person as queryPersonResolver } from "./interfaces/IPerson.js";
+import { countdown as subscriptionCountdownResolver } from "./Subscription.js";
 export function getSchema(): GraphQLSchema {
     const GroupType: GraphQLObjectType = new GraphQLObjectType({
         name: "Group",
diff --git a/examples/yoga/server.ts b/examples/yoga/server.ts
index 3ffa1c21..7a03bd50 100644
--- a/examples/yoga/server.ts
+++ b/examples/yoga/server.ts
@@ -1,6 +1,6 @@
 import { createServer } from "node:http";
 import { createYoga } from "graphql-yoga";
-import { getSchema } from "./schema";
+import { getSchema } from "./schema.js";
 
 const yoga = createYoga({
   schema: getSchema(),
diff --git a/llm-docs/getting-started/cli.md b/llm-docs/getting-started/cli.md
index e1681500..267b019e 100644
--- a/llm-docs/getting-started/cli.md
+++ b/llm-docs/getting-started/cli.md
@@ -55,30 +55,42 @@ Options:
   -h, --help                 display help for command
 
 Commands:
-  locate [options] <ENTITY>
+  locate [options] <COORDINATE>
 ```
 
 ## Locate
 
-The `locate` command reports the location (file, line, column) at which a given type or field is defined in your code. `grats locate` can also be invoked by other tools. For example the click-to-definition feature of an GraphQL editor integration could use invoke this command to find the location of a type or field.
+The `locate` command reports the location (file, line, column) at which a given schema element is defined in your code. It accepts a [Schema Coordinate](https://spec.graphql.org/draft/#sec-Schema-Coordinates) as its argument.
+
+`grats locate` can also be invoked by other tools. For example the click-to-definition feature of a GraphQL editor integration could invoke this command to find the location of a type or field.
 
 For example, Relay's VSCode Extension is [exploring](https://github.com/facebook/relay/pull/4434) adding the ability to leverage such a tool.
 
 ```bash
+# Locate a named type
+npx grats locate User
+
 # Locate a field
 npx grats locate User.name
 
-# Locate a named type
-npx grats locate User
+# Locate a field argument
+npx grats locate "Query.user(id:)"
+
+# Locate an enum value
+npx grats locate "MyEnum.VALUE"
+
+# Locate a directive
+npx grats locate @deprecated
 ```
 
 ### Options
 
 ```text
-Usage: grats locate [options] <ENTITY>
+Usage: grats locate [options] <COORDINATE>
 
 Arguments:
-ENTITY                 GraphQL entity to locate. E.g. `User` or `User.id`
+COORDINATE             Schema coordinate to locate. E.g. `User`, `User.name`,
+                       `Query.user(id:)`, `@deprecated`
 
 Options:
   --tsconfig <TSCONFIG>  Path to tsconfig.json. Defaults to auto-detecting based on the current working directory
diff --git a/llm-docs/getting-started/configuration.md b/llm-docs/getting-started/configuration.md
index 11d2e884..32b4fbd0 100644
--- a/llm-docs/getting-started/configuration.md
+++ b/llm-docs/getting-started/configuration.md
@@ -122,11 +122,9 @@ Default:
 
 ### "importModuleSpecifierEnding": string
 
-This option allows you configure an extension that will be appended to the end of all import paths in the generated TypeScript schema file.
+The extension appended to the end of all import paths in the generated TypeScript schema file. Defaults to `.js` which works for both CommonJS and ES module projects. Set to an empty string to omit the extension.
 
-When building a package that uses ES modules, import paths must not omit the file extension. In TypeScript code this generally means import paths must end with `.js`. If set to null, no ending will be appended.
-
-Default: `""`
+Default: `".js"`
 
 * * *
 
diff --git a/package.json b/package.json
index f612ad55..f037a32a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "name": "grats",
   "version": "0.0.35",
+  "type": "module",
   "main": "dist/src/index.js",
   "bin": "dist/src/cli.js",
   "types": "dist/src/index.d.ts",
@@ -11,16 +12,16 @@
     "llm-docs"
   ],
   "scripts": {
-    "test": "ts-node src/tests/test.ts",
+    "test": "tsx src/tests/test.ts",
     "test-example-projects": "node src/tests/testExampleProjects.mjs",
-    "build": "rm -rf dist/ && tsc --build",
+    "build": "rm -rf dist/ && tsc --build && cp src/configSpecRaw.json dist/src/configSpecRaw.json",
     "format": "prettier . --write",
     "lint": "eslint . && prettier . --check",
-    "profile": "ts-node scripts/profile.ts"
+    "profile": "tsx scripts/profile.ts"
   },
   "dependencies": {
     "commander": "^14.0.1",
-    "graphql": "^16.11.0",
+    "graphql": "17.0.0-alpha.11",
     "semver": "^7.7.2",
     "typescript": "5.9.2"
   },
@@ -38,7 +39,8 @@
     "path-browserify": "^1.0.1",
     "prettier": "^3.6.2",
     "process": "^0.11.10",
-    "ts-node": "^10.9.2"
+    "ts-node": "^10.9.2",
+    "tsx": "^4.19.0"
   },
   "prettier": {
     "trailingComma": "all"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ad0e5d49..f3afdd8c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -12,8 +12,8 @@ importers:
         specifier: ^14.0.1
         version: 14.0.1
       graphql:
-        specifier: ^16.11.0
-        version: 16.11.0
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       semver:
         specifier: ^7.7.2
         version: 7.7.2
@@ -63,18 +63,21 @@ importers:
       ts-node:
         specifier: ^10.9.2
         version: 10.9.2(@types/node@24.5.2)(typescript@5.9.2)
+      tsx:
+        specifier: ^4.19.0
+        version: 4.21.0
 
   examples/apollo-server:
     dependencies:
       '@apollo/server':
         specifier: ^5.0.0
-        version: 5.0.0(graphql@16.11.0)
+        version: 5.0.0(graphql@17.0.0-alpha.11)
       '@types/node':
         specifier: ^20.8.10
         version: 20.8.10
       graphql:
-        specifier: 16.11.0
-        version: 16.11.0
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
     devDependencies:
       grats:
         specifier: workspace:*
@@ -95,11 +98,11 @@ importers:
         specifier: ^4.18.2
         version: 4.18.2
       graphql:
-        specifier: 16.8.1
-        version: 16.8.1
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       graphql-http:
         specifier: ^1.22.0
-        version: 1.22.0(graphql@16.8.1)
+        version: 1.22.0(graphql@17.0.0-alpha.11)
     devDependencies:
       grats:
         specifier: workspace:*
@@ -115,16 +118,16 @@ importers:
         version: 8.4.1
       '@graphql-tools/schema':
         specifier: ^10.0.3
-        version: 10.0.3(graphql@16.8.1)
+        version: 10.0.3(graphql@17.0.0-alpha.11)
       '@pothos/core':
         specifier: ^3.41.1
-        version: 3.41.1(graphql@16.8.1)
+        version: 3.41.1(graphql@17.0.0-alpha.11)
       graphql:
-        specifier: 16.8.1
-        version: 16.8.1
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       graphql-yoga:
         specifier: ^5.0.0
-        version: 5.0.0(graphql@16.8.1)
+        version: 5.0.0(graphql@17.0.0-alpha.11)
       typescript:
         specifier: ^5.5.4
         version: 5.5.4
@@ -139,11 +142,11 @@ importers:
   examples/next-js:
     dependencies:
       graphql:
-        specifier: ^16.8.1
-        version: 16.8.1
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       graphql-yoga:
         specifier: ^5.0.0
-        version: 5.0.0(graphql@16.8.1)
+        version: 5.0.0(graphql@17.0.0-alpha.11)
       next:
         specifier: 14.0.3
         version: 14.0.3(@opentelemetry/api@1.6.0)(react-dom@18.2.0(react@18.2.0))(react@18.2.0)
@@ -174,22 +177,22 @@ importers:
     dependencies:
       '@graphql-tools/utils':
         specifier: ^9.2.1
-        version: 9.2.1(graphql@16.11.0)
+        version: 9.2.1(graphql@17.0.0-alpha.11)
       '@graphql-yoga/plugin-defer-stream':
         specifier: ^3.1.1
-        version: 3.1.1(graphql-yoga@5.16.0(graphql@16.11.0))(graphql@16.11.0)
+        version: 3.1.1(graphql-yoga@5.16.0(graphql@17.0.0-alpha.11))(graphql@17.0.0-alpha.11)
       dataloader:
         specifier: ^2.2.2
         version: 2.2.2
       graphql:
-        specifier: 16.11.0
-        version: 16.11.0
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       graphql-relay:
         specifier: ^0.10.0
-        version: 0.10.0(graphql@16.11.0)
+        version: 0.10.0(graphql@17.0.0-alpha.11)
       graphql-yoga:
         specifier: ^5.16.0
-        version: 5.16.0(graphql@16.11.0)
+        version: 5.16.0(graphql@17.0.0-alpha.11)
       typescript:
         specifier: ^5.5.4
         version: 5.5.4
@@ -204,11 +207,11 @@ importers:
   examples/strict-semantic-nullability:
     dependencies:
       graphql:
-        specifier: 16.8.1
-        version: 16.8.1
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       graphql-yoga:
         specifier: ^5.0.0
-        version: 5.0.0(graphql@16.8.1)
+        version: 5.0.0(graphql@17.0.0-alpha.11)
       typescript:
         specifier: ^5.5.4
         version: 5.5.4
@@ -223,11 +226,11 @@ importers:
   examples/yoga:
     dependencies:
       graphql:
-        specifier: 16.8.1
-        version: 16.8.1
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       graphql-yoga:
         specifier: ^5.0.0
-        version: 5.0.0(graphql@16.8.1)
+        version: 5.0.0(graphql@17.0.0-alpha.11)
       typescript:
         specifier: ^5.5.4
         version: 5.5.4
@@ -270,7 +273,7 @@ importers:
         version: 3.7.0(react-dom@18.2.0(react@18.2.0))(react@18.2.0)
       '@graphql-tools/utils':
         specifier: ^9.2.1
-        version: 9.2.1(graphql@16.11.0)
+        version: 9.2.1(graphql@17.0.0-alpha.11)
       '@mdx-js/react':
         specifier: ^3.0.0
         version: 3.0.1(@types/react@18.0.33)(react@18.2.0)
@@ -290,8 +293,8 @@ importers:
         specifier: ^9.3.4
         version: 9.3.4
       graphql:
-        specifier: ^16.11.0
-        version: 16.11.0
+        specifier: 17.0.0-alpha.11
+        version: 17.0.0-alpha.11
       grats:
         specifier: workspace:*
         version: link:..
@@ -346,13 +349,13 @@ importers:
         version: 1.2.0
       graphql-relay:
         specifier: ^0.10.0
-        version: 0.10.0(graphql@16.11.0)
+        version: 0.10.0(graphql@17.0.0-alpha.11)
       monaco-editor-webpack-plugin:
         specifier: ^7.1.0
         version: 7.1.0(monaco-editor@0.52.2)(webpack@5.78.0)
-      ts-node:
-        specifier: ^10.9.2
-        version: 10.9.2(@types/node@18.15.0)(typescript@5.9.2)
+      tsx:
+        specifier: ^4.19.2
+        version: 4.21.0
       typescript:
         specifier: 5.9.2
         version: 5.9.2
@@ -2198,6 +2201,162 @@ packages:
     resolution: {integrity: sha512-CsFmA3u3c2QoLDTfEpGr4t25fjMU31nyvse7IzWTvb0ZycuPjMjb0fjlheh+PbhBYb9YLugnT2uY6Mwcg1o+Zg==}
     engines: {node: '>=18.0.0'}
 
+  '@esbuild/aix-ppc64@0.27.3':
+    resolution: {integrity: sha512-9fJMTNFTWZMh5qwrBItuziu834eOCUcEqymSH7pY+zoMVEZg3gcPuBNxH1EvfVYe9h0x/Ptw8KBzv7qxb7l8dg==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [aix]
+
+  '@esbuild/android-arm64@0.27.3':
+    resolution: {integrity: sha512-YdghPYUmj/FX2SYKJ0OZxf+iaKgMsKHVPF1MAq/P8WirnSpCStzKJFjOjzsW0QQ7oIAiccHdcqjbHmJxRb/dmg==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [android]
+
+  '@esbuild/android-arm@0.27.3':
+    resolution: {integrity: sha512-i5D1hPY7GIQmXlXhs2w8AWHhenb00+GxjxRncS2ZM7YNVGNfaMxgzSGuO8o8SJzRc/oZwU2bcScvVERk03QhzA==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [android]
+
+  '@esbuild/android-x64@0.27.3':
+    resolution: {integrity: sha512-IN/0BNTkHtk8lkOM8JWAYFg4ORxBkZQf9zXiEOfERX/CzxW3Vg1ewAhU7QSWQpVIzTW+b8Xy+lGzdYXV6UZObQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [android]
+
+  '@esbuild/darwin-arm64@0.27.3':
+    resolution: {integrity: sha512-Re491k7ByTVRy0t3EKWajdLIr0gz2kKKfzafkth4Q8A5n1xTHrkqZgLLjFEHVD+AXdUGgQMq+Godfq45mGpCKg==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [darwin]
+
+  '@esbuild/darwin-x64@0.27.3':
+    resolution: {integrity: sha512-vHk/hA7/1AckjGzRqi6wbo+jaShzRowYip6rt6q7VYEDX4LEy1pZfDpdxCBnGtl+A5zq8iXDcyuxwtv3hNtHFg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [darwin]
+
+  '@esbuild/freebsd-arm64@0.27.3':
+    resolution: {integrity: sha512-ipTYM2fjt3kQAYOvo6vcxJx3nBYAzPjgTCk7QEgZG8AUO3ydUhvelmhrbOheMnGOlaSFUoHXB6un+A7q4ygY9w==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [freebsd]
+
+  '@esbuild/freebsd-x64@0.27.3':
+    resolution: {integrity: sha512-dDk0X87T7mI6U3K9VjWtHOXqwAMJBNN2r7bejDsc+j03SEjtD9HrOl8gVFByeM0aJksoUuUVU9TBaZa2rgj0oA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [freebsd]
+
+  '@esbuild/linux-arm64@0.27.3':
+    resolution: {integrity: sha512-sZOuFz/xWnZ4KH3YfFrKCf1WyPZHakVzTiqji3WDc0BCl2kBwiJLCXpzLzUBLgmp4veFZdvN5ChW4Eq/8Fc2Fg==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [linux]
+
+  '@esbuild/linux-arm@0.27.3':
+    resolution: {integrity: sha512-s6nPv2QkSupJwLYyfS+gwdirm0ukyTFNl3KTgZEAiJDd+iHZcbTPPcWCcRYH+WlNbwChgH2QkE9NSlNrMT8Gfw==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [linux]
+
+  '@esbuild/linux-ia32@0.27.3':
+    resolution: {integrity: sha512-yGlQYjdxtLdh0a3jHjuwOrxQjOZYD/C9PfdbgJJF3TIZWnm/tMd/RcNiLngiu4iwcBAOezdnSLAwQDPqTmtTYg==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [linux]
+
+  '@esbuild/linux-loong64@0.27.3':
+    resolution: {integrity: sha512-WO60Sn8ly3gtzhyjATDgieJNet/KqsDlX5nRC5Y3oTFcS1l0KWba+SEa9Ja1GfDqSF1z6hif/SkpQJbL63cgOA==}
+    engines: {node: '>=18'}
+    cpu: [loong64]
+    os: [linux]
+
+  '@esbuild/linux-mips64el@0.27.3':
+    resolution: {integrity: sha512-APsymYA6sGcZ4pD6k+UxbDjOFSvPWyZhjaiPyl/f79xKxwTnrn5QUnXR5prvetuaSMsb4jgeHewIDCIWljrSxw==}
+    engines: {node: '>=18'}
+    cpu: [mips64el]
+    os: [linux]
+
+  '@esbuild/linux-ppc64@0.27.3':
+    resolution: {integrity: sha512-eizBnTeBefojtDb9nSh4vvVQ3V9Qf9Df01PfawPcRzJH4gFSgrObw+LveUyDoKU3kxi5+9RJTCWlj4FjYXVPEA==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [linux]
+
+  '@esbuild/linux-riscv64@0.27.3':
+    resolution: {integrity: sha512-3Emwh0r5wmfm3ssTWRQSyVhbOHvqegUDRd0WhmXKX2mkHJe1SFCMJhagUleMq+Uci34wLSipf8Lagt4LlpRFWQ==}
+    engines: {node: '>=18'}
+    cpu: [riscv64]
+    os: [linux]
+
+  '@esbuild/linux-s390x@0.27.3':
+    resolution: {integrity: sha512-pBHUx9LzXWBc7MFIEEL0yD/ZVtNgLytvx60gES28GcWMqil8ElCYR4kvbV2BDqsHOvVDRrOxGySBM9Fcv744hw==}
+    engines: {node: '>=18'}
+    cpu: [s390x]
+    os: [linux]
+
+  '@esbuild/linux-x64@0.27.3':
+    resolution: {integrity: sha512-Czi8yzXUWIQYAtL/2y6vogER8pvcsOsk5cpwL4Gk5nJqH5UZiVByIY8Eorm5R13gq+DQKYg0+JyQoytLQas4dA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [linux]
+
+  '@esbuild/netbsd-arm64@0.27.3':
+    resolution: {integrity: sha512-sDpk0RgmTCR/5HguIZa9n9u+HVKf40fbEUt+iTzSnCaGvY9kFP0YKBWZtJaraonFnqef5SlJ8/TiPAxzyS+UoA==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [netbsd]
+
+  '@esbuild/netbsd-x64@0.27.3':
+    resolution: {integrity: sha512-P14lFKJl/DdaE00LItAukUdZO5iqNH7+PjoBm+fLQjtxfcfFE20Xf5CrLsmZdq5LFFZzb5JMZ9grUwvtVYzjiA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [netbsd]
+
+  '@esbuild/openbsd-arm64@0.27.3':
+    resolution: {integrity: sha512-AIcMP77AvirGbRl/UZFTq5hjXK+2wC7qFRGoHSDrZ5v5b8DK/GYpXW3CPRL53NkvDqb9D+alBiC/dV0Fb7eJcw==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openbsd]
+
+  '@esbuild/openbsd-x64@0.27.3':
+    resolution: {integrity: sha512-DnW2sRrBzA+YnE70LKqnM3P+z8vehfJWHXECbwBmH/CU51z6FiqTQTHFenPlHmo3a8UgpLyH3PT+87OViOh1AQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [openbsd]
+
+  '@esbuild/openharmony-arm64@0.27.3':
+    resolution: {integrity: sha512-NinAEgr/etERPTsZJ7aEZQvvg/A6IsZG/LgZy+81wON2huV7SrK3e63dU0XhyZP4RKGyTm7aOgmQk0bGp0fy2g==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openharmony]
+
+  '@esbuild/sunos-x64@0.27.3':
+    resolution: {integrity: sha512-PanZ+nEz+eWoBJ8/f8HKxTTD172SKwdXebZ0ndd953gt1HRBbhMsaNqjTyYLGLPdoWHy4zLU7bDVJztF5f3BHA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [sunos]
+
+  '@esbuild/win32-arm64@0.27.3':
+    resolution: {integrity: sha512-B2t59lWWYrbRDw/tjiWOuzSsFh1Y/E95ofKz7rIVYSQkUYBjfSgf6oeYPNWHToFRr2zx52JKApIcAS/D5TUBnA==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [win32]
+
+  '@esbuild/win32-ia32@0.27.3':
+    resolution: {integrity: sha512-QLKSFeXNS8+tHW7tZpMtjlNb7HKau0QDpwm49u0vUp9y1WOF+PEzkU84y9GqYaAVW8aH8f3GcBck26jh54cX4Q==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [win32]
+
+  '@esbuild/win32-x64@0.27.3':
+    resolution: {integrity: sha512-4uJGhsxuptu3OcpVAzli+/gWusVGwZZHTlS63hh++ehExkVT8SgiEf7/uC/PclrPPkLhZqGgCTjd0VWLo6xMqA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [win32]
+
   '@eslint-community/eslint-utils@4.9.0':
     resolution: {integrity: sha512-ayVFHdtZ+hsq1t2Dy24wCmGXGe4q9Gu3smhLYALJrr473ZH27MsnSL+LKUlimp4BWJqMDMLmPpx/Q9R3OAlL4g==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
@@ -4239,6 +4398,11 @@ packages:
     resolution: {integrity: sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==}
     engines: {node: '>= 0.4'}
 
+  esbuild@0.27.3:
+    resolution: {integrity: sha512-8VwMnyGCONIs6cWue2IdpHxHnAjzxnw2Zr7MkVxB2vjmQ2ivqGFb4LEG3SMnv0Gb2F/G/2yA8zUaiL1gywDCCg==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   escalade@3.1.1:
     resolution: {integrity: sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==}
     engines: {node: '>=6'}
@@ -4546,6 +4710,11 @@ packages:
     engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
     os: [darwin]
 
+  fsevents@2.3.3:
+    resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
+    engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
+    os: [darwin]
+
   function-bind@1.1.1:
     resolution: {integrity: sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==}
 
@@ -4574,6 +4743,9 @@ packages:
     resolution: {integrity: sha512-ts6Wi+2j3jQjqi70w5AlN8DFnkSwC+MqmxEzdEALB2qXZYV3X/b1CTfgPLGJNMeAWxdPfU8FO1ms3NUfaHCPYg==}
     engines: {node: '>=10'}
 
+  get-tsconfig@4.13.6:
+    resolution: {integrity: sha512-shZT/QMiSHc/YBLxxOkMtgSid5HFoauqCE3/exfsEcwg1WkeqjG+V40yBbBrsD+jW2HDXcs28xOfcbm2jI8Ddw==}
+
   github-slugger@1.5.0:
     resolution: {integrity: sha512-wIh+gKBI9Nshz2o46B0B3f5k/W+WI9ZAv6y5Dn5WJ5SK1t0TnDimB4WE5rmTD05ZAIn8HALCZVmCsvj0w0v0lw==}
 
@@ -4674,9 +4846,9 @@ packages:
     resolution: {integrity: sha512-mS1lbMsxgQj6hge1XZ6p7GPhbrtFwUFYi3wRzXAC/FmYnyXMTvvI3td3rjmQ2u8ewXueaSvRPWaEcgVVOT9Jnw==}
     engines: {node: ^12.22.0 || ^14.16.0 || ^16.0.0 || >=17.0.0}
 
-  graphql@16.8.1:
-    resolution: {integrity: sha512-59LZHPdGZVh695Ud9lRzPBVTtlX9ZCV150Er2W43ro37wVof0ctenSaskPPjN7lVTIN8mSZt8PHUNKZuNQUuxw==}
-    engines: {node: ^12.22.0 || ^14.16.0 || ^16.0.0 || >=17.0.0}
+  graphql@17.0.0-alpha.11:
+    resolution: {integrity: sha512-28FSpHCjJZP9nxBmLYREbIkq5llRTfqaEPpnphQ05Q6rUME6bN3J2IppNY1blO5TZwiQruhu379A4BX4XlLTRQ==}
+    engines: {node: ^20.0.0 || ^22.0.0 || ^24.0.0 || >=25.0.0}
 
   grats@0.0.26:
     resolution: {integrity: sha512-9JVF3kvOB42+PDZhmxcbv5Co7vMUSfdUN417mubFleALZ9tTBlzlKQ2HkkkUghZp1/OE2VHk1cT3QyjvQzyE+w==}
@@ -6674,6 +6846,9 @@ packages:
   resolve-pathname@3.0.0:
     resolution: {integrity: sha512-C7rARubxI8bXFNB/hqcp/4iUeIXJhJZvFPFPiSPRnhU5UPxzMFIl+2E6yY6c4k9giDJAhtV+enfA+G89N6Csng==}
 
+  resolve-pkg-maps@1.0.0:
+    resolution: {integrity: sha512-seS2Tj26TBVOC2NIc2rOe2y2ZO7efxITtLZcGSOnHHNOQ7CkiUBfw0Iw2ck6xkIhPwLhKNLS8BO+hEpngQlqzw==}
+
   resolve@1.22.1:
     resolution: {integrity: sha512-nBpuuYuY5jFsli/JIs1oldw6fOQCBioohqWZg/2hiaOybXOft4lonv85uDOKXdf8rhyK159cxU5cDcK/NKk8zw==}
     hasBin: true
@@ -7143,6 +7318,11 @@ packages:
   tslib@2.8.1:
     resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
 
+  tsx@4.21.0:
+    resolution: {integrity: sha512-5C1sg4USs1lfG0GFb2RLXsdpXqBSEhAaA/0kPL01wxzpMqLILNxIxIOKiILz+cdg/pLnOUxFYOR5yhHU666wbw==}
+    engines: {node: '>=18.0.0'}
+    hasBin: true
+
   turndown@7.2.2:
     resolution: {integrity: sha512-1F7db8BiExOKxjSMU2b7if62D/XOyQyZbPKq/nUwopfgnHlqXHqQ0lvfUTeUIr1lZJzOPFn43dODyMSIfvWRKQ==}
 
@@ -7688,9 +7868,9 @@ snapshots:
       '@jridgewell/gen-mapping': 0.1.1
       '@jridgewell/trace-mapping': 0.3.25
 
-  '@apollo/cache-control-types@1.0.3(graphql@16.11.0)':
+  '@apollo/cache-control-types@1.0.3(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
   '@apollo/protobufjs@1.2.7':
     dependencies:
@@ -7707,32 +7887,32 @@ snapshots:
       '@types/long': 4.0.2
       long: 4.0.0
 
-  '@apollo/server-gateway-interface@2.0.0(graphql@16.11.0)':
+  '@apollo/server-gateway-interface@2.0.0(graphql@17.0.0-alpha.11)':
     dependencies:
       '@apollo/usage-reporting-protobuf': 4.1.1
       '@apollo/utils.fetcher': 3.1.0
       '@apollo/utils.keyvaluecache': 4.0.0
       '@apollo/utils.logger': 3.0.0
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
-  '@apollo/server@5.0.0(graphql@16.11.0)':
+  '@apollo/server@5.0.0(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@apollo/cache-control-types': 1.0.3(graphql@16.11.0)
-      '@apollo/server-gateway-interface': 2.0.0(graphql@16.11.0)
+      '@apollo/cache-control-types': 1.0.3(graphql@17.0.0-alpha.11)
+      '@apollo/server-gateway-interface': 2.0.0(graphql@17.0.0-alpha.11)
       '@apollo/usage-reporting-protobuf': 4.1.1
       '@apollo/utils.createhash': 3.0.1
       '@apollo/utils.fetcher': 3.1.0
       '@apollo/utils.isnodelike': 3.0.0
       '@apollo/utils.keyvaluecache': 4.0.0
       '@apollo/utils.logger': 3.0.0
-      '@apollo/utils.usagereporting': 2.1.0(graphql@16.11.0)
+      '@apollo/utils.usagereporting': 2.1.0(graphql@17.0.0-alpha.11)
       '@apollo/utils.withrequired': 3.0.0
-      '@graphql-tools/schema': 10.0.11(graphql@16.11.0)
+      '@graphql-tools/schema': 10.0.11(graphql@17.0.0-alpha.11)
       async-retry: 1.3.3
       body-parser: 2.2.0
       cors: 2.8.5
       finalhandler: 2.1.0
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
       loglevel: 1.8.1
       lru-cache: 11.2.1
       negotiator: 1.0.0
@@ -7750,9 +7930,9 @@ snapshots:
       '@apollo/utils.isnodelike': 3.0.0
       sha.js: 2.4.11
 
-  '@apollo/utils.dropunuseddefinitions@2.0.1(graphql@16.11.0)':
+  '@apollo/utils.dropunuseddefinitions@2.0.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
   '@apollo/utils.fetcher@3.1.0': {}
 
@@ -7765,32 +7945,32 @@ snapshots:
 
   '@apollo/utils.logger@3.0.0': {}
 
-  '@apollo/utils.printwithreducedwhitespace@2.0.1(graphql@16.11.0)':
+  '@apollo/utils.printwithreducedwhitespace@2.0.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
-  '@apollo/utils.removealiases@2.0.1(graphql@16.11.0)':
+  '@apollo/utils.removealiases@2.0.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
-  '@apollo/utils.sortast@2.0.1(graphql@16.11.0)':
+  '@apollo/utils.sortast@2.0.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
       lodash.sortby: 4.7.0
 
-  '@apollo/utils.stripsensitiveliterals@2.0.1(graphql@16.11.0)':
+  '@apollo/utils.stripsensitiveliterals@2.0.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
-  '@apollo/utils.usagereporting@2.1.0(graphql@16.11.0)':
+  '@apollo/utils.usagereporting@2.1.0(graphql@17.0.0-alpha.11)':
     dependencies:
       '@apollo/usage-reporting-protobuf': 4.1.1
-      '@apollo/utils.dropunuseddefinitions': 2.0.1(graphql@16.11.0)
-      '@apollo/utils.printwithreducedwhitespace': 2.0.1(graphql@16.11.0)
-      '@apollo/utils.removealiases': 2.0.1(graphql@16.11.0)
-      '@apollo/utils.sortast': 2.0.1(graphql@16.11.0)
-      '@apollo/utils.stripsensitiveliterals': 2.0.1(graphql@16.11.0)
-      graphql: 16.11.0
+      '@apollo/utils.dropunuseddefinitions': 2.0.1(graphql@17.0.0-alpha.11)
+      '@apollo/utils.printwithreducedwhitespace': 2.0.1(graphql@17.0.0-alpha.11)
+      '@apollo/utils.removealiases': 2.0.1(graphql@17.0.0-alpha.11)
+      '@apollo/utils.sortast': 2.0.1(graphql@17.0.0-alpha.11)
+      '@apollo/utils.stripsensitiveliterals': 2.0.1(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
 
   '@apollo/utils.withrequired@3.0.0': {}
 
@@ -10407,6 +10587,84 @@ snapshots:
       '@whatwg-node/promise-helpers': 1.3.2
       tslib: 2.8.1
 
+  '@esbuild/aix-ppc64@0.27.3':
+    optional: true
+
+  '@esbuild/android-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/android-arm@0.27.3':
+    optional: true
+
+  '@esbuild/android-x64@0.27.3':
+    optional: true
+
+  '@esbuild/darwin-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/darwin-x64@0.27.3':
+    optional: true
+
+  '@esbuild/freebsd-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/freebsd-x64@0.27.3':
+    optional: true
+
+  '@esbuild/linux-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/linux-arm@0.27.3':
+    optional: true
+
+  '@esbuild/linux-ia32@0.27.3':
+    optional: true
+
+  '@esbuild/linux-loong64@0.27.3':
+    optional: true
+
+  '@esbuild/linux-mips64el@0.27.3':
+    optional: true
+
+  '@esbuild/linux-ppc64@0.27.3':
+    optional: true
+
+  '@esbuild/linux-riscv64@0.27.3':
+    optional: true
+
+  '@esbuild/linux-s390x@0.27.3':
+    optional: true
+
+  '@esbuild/linux-x64@0.27.3':
+    optional: true
+
+  '@esbuild/netbsd-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/netbsd-x64@0.27.3':
+    optional: true
+
+  '@esbuild/openbsd-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/openbsd-x64@0.27.3':
+    optional: true
+
+  '@esbuild/openharmony-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/sunos-x64@0.27.3':
+    optional: true
+
+  '@esbuild/win32-arm64@0.27.3':
+    optional: true
+
+  '@esbuild/win32-ia32@0.27.3':
+    optional: true
+
+  '@esbuild/win32-x64@0.27.3':
+    optional: true
+
   '@eslint-community/eslint-utils@4.9.0(eslint@9.36.0(jiti@1.21.6))':
     dependencies:
       eslint: 9.36.0(jiti@1.21.6)
@@ -10455,109 +10713,83 @@ snapshots:
 
   '@fastify/busboy@3.2.0': {}
 
-  '@graphql-tools/executor@1.2.0(graphql@16.8.1)':
+  '@graphql-tools/executor@1.2.0(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/utils': 10.6.2(graphql@16.8.1)
-      '@graphql-typed-document-node/core': 3.2.0(graphql@16.8.1)
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
+      '@graphql-typed-document-node/core': 3.2.0(graphql@17.0.0-alpha.11)
       '@repeaterjs/repeater': 3.0.5
-      graphql: 16.8.1
+      graphql: 17.0.0-alpha.11
       tslib: 2.6.2
       value-or-promise: 1.0.12
 
-  '@graphql-tools/executor@1.4.9(graphql@16.11.0)':
+  '@graphql-tools/executor@1.4.9(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/utils': 10.9.1(graphql@16.11.0)
-      '@graphql-typed-document-node/core': 3.2.0(graphql@16.11.0)
+      '@graphql-tools/utils': 10.9.1(graphql@17.0.0-alpha.11)
+      '@graphql-typed-document-node/core': 3.2.0(graphql@17.0.0-alpha.11)
       '@repeaterjs/repeater': 3.0.5
       '@whatwg-node/disposablestack': 0.0.6
       '@whatwg-node/promise-helpers': 1.3.2
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
       tslib: 2.8.1
 
-  '@graphql-tools/merge@9.0.12(graphql@16.11.0)':
+  '@graphql-tools/merge@9.0.12(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/utils': 10.6.2(graphql@16.11.0)
-      graphql: 16.11.0
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
       tslib: 2.8.1
 
-  '@graphql-tools/merge@9.0.12(graphql@16.8.1)':
+  '@graphql-tools/merge@9.0.4(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/utils': 10.6.2(graphql@16.8.1)
-      graphql: 16.8.1
-      tslib: 2.8.1
-
-  '@graphql-tools/merge@9.0.4(graphql@16.8.1)':
-    dependencies:
-      '@graphql-tools/utils': 10.6.2(graphql@16.8.1)
-      graphql: 16.8.1
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
       tslib: 2.6.2
 
-  '@graphql-tools/schema@10.0.11(graphql@16.11.0)':
+  '@graphql-tools/schema@10.0.11(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/merge': 9.0.12(graphql@16.11.0)
-      '@graphql-tools/utils': 10.6.2(graphql@16.11.0)
-      graphql: 16.11.0
+      '@graphql-tools/merge': 9.0.12(graphql@17.0.0-alpha.11)
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
       tslib: 2.8.1
       value-or-promise: 1.0.12
 
-  '@graphql-tools/schema@10.0.11(graphql@16.8.1)':
+  '@graphql-tools/schema@10.0.3(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/merge': 9.0.12(graphql@16.8.1)
-      '@graphql-tools/utils': 10.6.2(graphql@16.8.1)
-      graphql: 16.8.1
-      tslib: 2.8.1
-      value-or-promise: 1.0.12
-
-  '@graphql-tools/schema@10.0.3(graphql@16.8.1)':
-    dependencies:
-      '@graphql-tools/merge': 9.0.4(graphql@16.8.1)
-      '@graphql-tools/utils': 10.6.2(graphql@16.8.1)
-      graphql: 16.8.1
+      '@graphql-tools/merge': 9.0.4(graphql@17.0.0-alpha.11)
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
       tslib: 2.6.2
       value-or-promise: 1.0.12
 
-  '@graphql-tools/utils@10.6.2(graphql@16.11.0)':
-    dependencies:
-      '@graphql-typed-document-node/core': 3.2.0(graphql@16.11.0)
-      cross-inspect: 1.0.1
-      dset: 3.1.4
-      graphql: 16.11.0
-      tslib: 2.8.1
-
-  '@graphql-tools/utils@10.6.2(graphql@16.8.1)':
+  '@graphql-tools/utils@10.6.2(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-typed-document-node/core': 3.2.0(graphql@16.8.1)
+      '@graphql-typed-document-node/core': 3.2.0(graphql@17.0.0-alpha.11)
       cross-inspect: 1.0.1
       dset: 3.1.4
-      graphql: 16.8.1
+      graphql: 17.0.0-alpha.11
       tslib: 2.8.1
 
-  '@graphql-tools/utils@10.9.1(graphql@16.11.0)':
+  '@graphql-tools/utils@10.9.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-typed-document-node/core': 3.2.0(graphql@16.11.0)
+      '@graphql-typed-document-node/core': 3.2.0(graphql@17.0.0-alpha.11)
       '@whatwg-node/promise-helpers': 1.3.2
       cross-inspect: 1.0.1
       dset: 3.1.4
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
       tslib: 2.8.1
 
-  '@graphql-tools/utils@9.2.1(graphql@16.11.0)':
+  '@graphql-tools/utils@9.2.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-typed-document-node/core': 3.1.2(graphql@16.11.0)
-      graphql: 16.11.0
+      '@graphql-typed-document-node/core': 3.1.2(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
       tslib: 2.5.0
 
-  '@graphql-typed-document-node/core@3.1.2(graphql@16.11.0)':
+  '@graphql-typed-document-node/core@3.1.2(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
-  '@graphql-typed-document-node/core@3.2.0(graphql@16.11.0)':
+  '@graphql-typed-document-node/core@3.2.0(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.11.0
-
-  '@graphql-typed-document-node/core@3.2.0(graphql@16.8.1)':
-    dependencies:
-      graphql: 16.8.1
+      graphql: 17.0.0-alpha.11
 
   '@graphql-yoga/logger@2.0.0':
     dependencies:
@@ -10567,11 +10799,11 @@ snapshots:
     dependencies:
       tslib: 2.8.1
 
-  '@graphql-yoga/plugin-defer-stream@3.1.1(graphql-yoga@5.16.0(graphql@16.11.0))(graphql@16.11.0)':
+  '@graphql-yoga/plugin-defer-stream@3.1.1(graphql-yoga@5.16.0(graphql@17.0.0-alpha.11))(graphql@17.0.0-alpha.11)':
     dependencies:
-      '@graphql-tools/utils': 10.6.2(graphql@16.11.0)
-      graphql: 16.11.0
-      graphql-yoga: 5.16.0(graphql@16.11.0)
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
+      graphql: 17.0.0-alpha.11
+      graphql-yoga: 5.16.0(graphql@17.0.0-alpha.11)
 
   '@graphql-yoga/subscription@5.0.0':
     dependencies:
@@ -10776,9 +11008,9 @@ snapshots:
 
   '@polka/url@1.0.0-next.24': {}
 
-  '@pothos/core@3.41.1(graphql@16.8.1)':
+  '@pothos/core@3.41.1(graphql@17.0.0-alpha.11)':
     dependencies:
-      graphql: 16.8.1
+      graphql: 17.0.0-alpha.11
 
   '@protobufjs/aspromise@1.1.2': {}
 
@@ -12728,6 +12960,35 @@ snapshots:
     dependencies:
       es-errors: 1.3.0
 
+  esbuild@0.27.3:
+    optionalDependencies:
+      '@esbuild/aix-ppc64': 0.27.3
+      '@esbuild/android-arm': 0.27.3
+      '@esbuild/android-arm64': 0.27.3
+      '@esbuild/android-x64': 0.27.3
+      '@esbuild/darwin-arm64': 0.27.3
+      '@esbuild/darwin-x64': 0.27.3
+      '@esbuild/freebsd-arm64': 0.27.3
+      '@esbuild/freebsd-x64': 0.27.3
+      '@esbuild/linux-arm': 0.27.3
+      '@esbuild/linux-arm64': 0.27.3
+      '@esbuild/linux-ia32': 0.27.3
+      '@esbuild/linux-loong64': 0.27.3
+      '@esbuild/linux-mips64el': 0.27.3
+      '@esbuild/linux-ppc64': 0.27.3
+      '@esbuild/linux-riscv64': 0.27.3
+      '@esbuild/linux-s390x': 0.27.3
+      '@esbuild/linux-x64': 0.27.3
+      '@esbuild/netbsd-arm64': 0.27.3
+      '@esbuild/netbsd-x64': 0.27.3
+      '@esbuild/openbsd-arm64': 0.27.3
+      '@esbuild/openbsd-x64': 0.27.3
+      '@esbuild/openharmony-arm64': 0.27.3
+      '@esbuild/sunos-x64': 0.27.3
+      '@esbuild/win32-arm64': 0.27.3
+      '@esbuild/win32-ia32': 0.27.3
+      '@esbuild/win32-x64': 0.27.3
+
   escalade@3.1.1: {}
 
   escalade@3.1.2: {}
@@ -13104,6 +13365,9 @@ snapshots:
   fsevents@2.3.2:
     optional: true
 
+  fsevents@2.3.3:
+    optional: true
+
   function-bind@1.1.1: {}
 
   function-bind@1.1.2: {}
@@ -13138,6 +13402,10 @@ snapshots:
 
   get-stream@6.0.1: {}
 
+  get-tsconfig@4.13.6:
+    dependencies:
+      resolve-pkg-maps: 1.0.0
+
   github-slugger@1.5.0: {}
 
   glob-parent@5.1.2:
@@ -13225,49 +13493,49 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  graphql-http@1.22.0(graphql@16.8.1):
+  graphql-http@1.22.0(graphql@17.0.0-alpha.11):
     dependencies:
-      graphql: 16.8.1
+      graphql: 17.0.0-alpha.11
 
-  graphql-relay@0.10.0(graphql@16.11.0):
+  graphql-relay@0.10.0(graphql@17.0.0-alpha.11):
     dependencies:
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
 
-  graphql-yoga@5.0.0(graphql@16.8.1):
+  graphql-yoga@5.0.0(graphql@17.0.0-alpha.11):
     dependencies:
       '@envelop/core': 5.0.0
-      '@graphql-tools/executor': 1.2.0(graphql@16.8.1)
-      '@graphql-tools/schema': 10.0.11(graphql@16.8.1)
-      '@graphql-tools/utils': 10.6.2(graphql@16.8.1)
+      '@graphql-tools/executor': 1.2.0(graphql@17.0.0-alpha.11)
+      '@graphql-tools/schema': 10.0.11(graphql@17.0.0-alpha.11)
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
       '@graphql-yoga/logger': 2.0.0
       '@graphql-yoga/subscription': 5.0.0
       '@whatwg-node/fetch': 0.9.14
       '@whatwg-node/server': 0.9.16
       dset: 3.1.3
-      graphql: 16.8.1
+      graphql: 17.0.0-alpha.11
       lru-cache: 10.0.2
       tslib: 2.6.2
 
-  graphql-yoga@5.16.0(graphql@16.11.0):
+  graphql-yoga@5.16.0(graphql@17.0.0-alpha.11):
     dependencies:
       '@envelop/core': 5.3.2
       '@envelop/instrumentation': 1.0.0
-      '@graphql-tools/executor': 1.4.9(graphql@16.11.0)
-      '@graphql-tools/schema': 10.0.11(graphql@16.11.0)
-      '@graphql-tools/utils': 10.6.2(graphql@16.11.0)
+      '@graphql-tools/executor': 1.4.9(graphql@17.0.0-alpha.11)
+      '@graphql-tools/schema': 10.0.11(graphql@17.0.0-alpha.11)
+      '@graphql-tools/utils': 10.6.2(graphql@17.0.0-alpha.11)
       '@graphql-yoga/logger': 2.0.1
       '@graphql-yoga/subscription': 5.0.5
       '@whatwg-node/fetch': 0.10.11
       '@whatwg-node/promise-helpers': 1.3.2
       '@whatwg-node/server': 0.10.12
       dset: 3.1.4
-      graphql: 16.11.0
+      graphql: 17.0.0-alpha.11
       lru-cache: 10.0.2
       tslib: 2.8.1
 
   graphql@16.11.0: {}
 
-  graphql@16.8.1: {}
+  graphql@17.0.0-alpha.11: {}
 
   grats@0.0.26:
     dependencies:
@@ -15753,6 +16021,8 @@ snapshots:
 
   resolve-pathname@3.0.0: {}
 
+  resolve-pkg-maps@1.0.0: {}
+
   resolve@1.22.1:
     dependencies:
       is-core-module: 2.11.0
@@ -16217,24 +16487,6 @@ snapshots:
 
   ts-dedent@2.2.0: {}
 
-  ts-node@10.9.2(@types/node@18.15.0)(typescript@5.9.2):
-    dependencies:
-      '@cspotcode/source-map-support': 0.8.1
-      '@tsconfig/node10': 1.0.9
-      '@tsconfig/node12': 1.0.11
-      '@tsconfig/node14': 1.0.3
-      '@tsconfig/node16': 1.0.3
-      '@types/node': 18.15.0
-      acorn: 8.15.0
-      acorn-walk: 8.2.0
-      arg: 4.1.3
-      create-require: 1.1.1
-      diff: 4.0.2
-      make-error: 1.3.6
-      typescript: 5.9.2
-      v8-compile-cache-lib: 3.0.1
-      yn: 3.1.1
-
   ts-node@10.9.2(@types/node@24.5.2)(typescript@5.9.2):
     dependencies:
       '@cspotcode/source-map-support': 0.8.1
@@ -16259,6 +16511,13 @@ snapshots:
 
   tslib@2.8.1: {}
 
+  tsx@4.21.0:
+    dependencies:
+      esbuild: 0.27.3
+      get-tsconfig: 4.13.6
+    optionalDependencies:
+      fsevents: 2.3.3
+
   turndown@7.2.2:
     dependencies:
       '@mixmark-io/domino': 2.2.0
diff --git a/scripts/TGratsConfig.ts b/scripts/TGratsConfig.ts
index d6efa30f..1e42e61a 100644
--- a/scripts/TGratsConfig.ts
+++ b/scripts/TGratsConfig.ts
@@ -71,11 +71,9 @@ export type GratsConfig = {
    */
   tsClientEnumsHeader: string | null;
   /**
-   * This option allows you configure an extension that will be appended to
-   * the end of all import paths in the generated TypeScript schema file.
-   * When building a package that uses ES modules, import paths must not
-   * omit the file extension. In TypeScript code this generally means import
-   * paths must end with `.js`. If set to null, no ending will be appended.
+   * The extension appended to the end of all import paths in the generated
+   * TypeScript schema file. Defaults to `.js` which works for both CommonJS
+   * and ES module projects. Set to an empty string to omit the extension.
    */
   importModuleSpecifierEnding: string;
   /**
diff --git a/scripts/buildConfigTypes.ts b/scripts/buildConfigTypes.ts
index 52184e4e..38695f41 100644
--- a/scripts/buildConfigTypes.ts
+++ b/scripts/buildConfigTypes.ts
@@ -1,7 +1,11 @@
 import * as fs from "fs";
 import * as path from "path";
-import { makeTypeScriptType } from "../src/gratsConfig";
-import { GratsConfigSpec } from "../src/configSpec";
+import { fileURLToPath } from "url";
+import { makeTypeScriptType } from "../src/gratsConfig.js";
+import { GratsConfigSpec } from "../src/configSpec.js";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
 export function writeTypeScriptTypeToDisk(): void {
   const doc = `/**
diff --git a/scripts/profile.ts b/scripts/profile.ts
index d9fa4b95..f1a0c118 100644
--- a/scripts/profile.ts
+++ b/scripts/profile.ts
@@ -33,7 +33,7 @@ export async function main() {
     let prevType = "";
     if (fileIndex > 0) {
       prevType = `Type${fileIndex - 1}`;
-      prelude = `import { ${prevType} } from "./file${fileIndex - 1}";\n`;
+      prelude = `import { ${prevType} } from "./file${fileIndex - 1}.js";\n`;
       edge = `  /** @gqlField */
   previous(): ${prevType} {
     return new ${prevType}();
diff --git a/src/Errors.ts b/src/Errors.ts
index 770756c0..ae2f774e 100644
--- a/src/Errors.ts
+++ b/src/Errors.ts
@@ -13,7 +13,7 @@ import {
   CONTEXT_TAG,
   INFO_TAG,
   DIRECTIVE_TAG,
-} from "./Extractor";
+} from "./Extractor.js";
 
 export const ISSUE_URL = "https://github.com/captbaritone/grats/issues";
 
diff --git a/src/Extractor.ts b/src/Extractor.ts
index 41f6b651..a40bb039 100644
--- a/src/Extractor.ts
+++ b/src/Extractor.ts
@@ -26,34 +26,34 @@ import {
   DiagnosticsResult,
   gqlErr,
   DiagnosticResult,
-} from "./utils/DiagnosticError";
-import { err, ok } from "./utils/Result";
+} from "./utils/DiagnosticError.js";
+import { err, ok } from "./utils/Result.js";
 import * as ts from "typescript";
 import {
   DeclarationDefinition,
   NameDefinition,
   UNRESOLVED_REFERENCE_NAME,
-} from "./TypeContext";
-import * as E from "./Errors";
-import { traverseJSDocTags } from "./utils/JSDoc";
-import { GraphQLConstructor, loc } from "./GraphQLConstructor";
-import { relativePath } from "./gratsRoot";
-import { ISSUE_URL } from "./Errors";
-import { detectInvalidComments } from "./comments";
+} from "./TypeContext.js";
+import * as E from "./Errors.js";
+import { traverseJSDocTags } from "./utils/JSDoc.js";
+import { GraphQLConstructor, loc } from "./GraphQLConstructor.js";
+import { relativePath } from "./gratsRoot.js";
+import { ISSUE_URL } from "./Errors.js";
+import { detectInvalidComments } from "./comments.js";
 import {
   bestMatch,
   extend,
   invariant,
   levenshteinDistance,
   TsIdentifier,
-} from "./utils/helpers";
-import * as Act from "./CodeActions";
+} from "./utils/helpers.js";
+import * as Act from "./CodeActions.js";
 import {
   InputValueDefinitionNodeOrResolverArg,
   ResolverArgument,
-} from "./resolverSignature";
-import { Parser } from "graphql/language/parser";
-import { ExportDefinition } from "./GraphQLAstExtensions";
+} from "./resolverSignature.js";
+import { Parser } from "graphql/language/parser.js";
+import { ExportDefinition } from "./GraphQLAstExtensions.js";
 
 export const LIBRARY_IMPORT_NAME = "grats";
 export const LIBRARY_NAME = "Grats";
diff --git a/src/GraphQLAstExtensions.ts b/src/GraphQLAstExtensions.ts
index 6efe28ca..b940fad9 100644
--- a/src/GraphQLAstExtensions.ts
+++ b/src/GraphQLAstExtensions.ts
@@ -1,5 +1,5 @@
-import { ResolverSignature } from "./resolverSignature";
-import { TsIdentifier } from "./utils/helpers";
+import { ResolverSignature } from "./resolverSignature.js";
+import { TsIdentifier } from "./utils/helpers.js";
 
 export type ExportDefinition = {
   tsModulePath: string;
diff --git a/src/GraphQLConstructor.ts b/src/GraphQLConstructor.ts
index 40b77690..24f01b5e 100644
--- a/src/GraphQLConstructor.ts
+++ b/src/GraphQLConstructor.ts
@@ -35,13 +35,13 @@ import {
   EnumValueNode,
 } from "graphql";
 import * as ts from "typescript";
-import { uniqueId } from "./utils/helpers";
-import { DiagnosticResult, TsLocatableNode } from "./utils/DiagnosticError";
+import { uniqueId } from "./utils/helpers.js";
+import { DiagnosticResult, TsLocatableNode } from "./utils/DiagnosticError.js";
 import {
   InputValueDefinitionNodeOrResolverArg,
   ResolverSignature,
-} from "./resolverSignature";
-import { ExportDefinition } from "./GraphQLAstExtensions";
+} from "./resolverSignature.js";
+import { ExportDefinition } from "./GraphQLAstExtensions.js";
 
 export class GraphQLConstructor {
   /* Top Level Types */
diff --git a/src/InterfaceGraph.ts b/src/InterfaceGraph.ts
index b1710fa0..40a972d6 100644
--- a/src/InterfaceGraph.ts
+++ b/src/InterfaceGraph.ts
@@ -1,5 +1,5 @@
-import { TypeContext } from "./TypeContext";
-import { DefaultMap } from "./utils/helpers";
+import { TypeContext } from "./TypeContext.js";
+import { DefaultMap } from "./utils/helpers.js";
 import { DefinitionNode, Kind } from "graphql";
 
 export type InterfaceImplementor = { kind: "TYPE" | "INTERFACE"; name: string };
diff --git a/src/Locate.ts b/src/Locate.ts
index 48067f91..e3ff63af 100644
--- a/src/Locate.ts
+++ b/src/Locate.ts
@@ -1,81 +1,115 @@
 import {
-  GraphQLInputObjectType,
-  GraphQLInterfaceType,
-  GraphQLObjectType,
   GraphQLSchema,
   Location,
+  resolveSchemaCoordinate,
+  type ResolvedSchemaElement,
 } from "graphql";
-import { Result, err, ok } from "./utils/Result";
-import { nullThrows } from "./utils/helpers";
-
-type EntityName = {
-  parent: string;
-  field: string | null;
-};
+import { Result, err, ok } from "./utils/Result.js";
+import { nullThrows } from "./utils/helpers.js";
 
 /**
- * Given an entity name of the format `ParentType` or `ParentType.fieldName`,
- * locate the entity in the schema and return its location.
+ * Given a schema coordinate string, locate the entity in the schema
+ * and return its source location.
+ *
+ * Uses the Schema Coordinates spec:
+ * https://spec.graphql.org/draft/#sec-Schema-Coordinates
+ *
+ * Supports all schema coordinate forms:
+ * - `Type` — named type
+ * - `Type.field` — field on object/interface type
+ * - `Type.field(arg:)` — field argument
+ * - `EnumType.VALUE` — enum value
+ * - `InputType.field` — input field
+ * - `@directive` — directive
+ * - `@directive(arg:)` — directive argument
  */
 export function locate(
   schema: GraphQLSchema,
-  entityName: string,
+  coordinate: string,
 ): Result<Location, string> {
-  const entityResult = parseEntityName(entityName);
-  if (entityResult.kind === "ERROR") {
-    return entityResult;
-  }
-  const entity = entityResult.value;
-  const type = schema.getType(entity.parent);
-  if (type == null) {
-    return err(`Cannot locate type \`${entity.parent}\`.`);
-  }
-  if (entity.field == null) {
-    if (type.astNode == null) {
-      throw new Error(
-        `Grats bug: Cannot find location of type \`${entity.parent}\`.`,
-      );
-    }
-    return ok(nullThrows(type.astNode.name.loc));
-  }
-
-  if (
-    !(
-      type instanceof GraphQLObjectType ||
-      type instanceof GraphQLInterfaceType ||
-      type instanceof GraphQLInputObjectType
-    )
-  ) {
+  let resolved: ResolvedSchemaElement | undefined;
+  try {
+    resolved = resolveSchemaCoordinate(schema, coordinate);
+  } catch (e: unknown) {
     return err(
-      `Cannot locate field \`${entity.field}\` on type \`${entity.parent}\`. Only object types, interfaces, and input objects have fields.`,
+      `Invalid schema coordinate: \`${coordinate}\`. ${e instanceof Error ? e.message : String(e)}`,
     );
   }
-
-  const field = type.getFields()[entity.field];
-  if (field == null) {
-    return err(
-      `Cannot locate field \`${entity.field}\` on type \`${entity.parent}\`.`,
-    );
-  }
-
-  if (field.astNode == null) {
-    throw new Error(
-      `Grats bug: Cannot find location of field \`${entity.field}\` on type \`${entity.parent}\`.`,
-    );
+  if (resolved == null) {
+    return err(`Could not resolve schema coordinate: \`${coordinate}\`.`);
   }
-  return ok(nullThrows(field.astNode.name.loc));
-}
-
-const ENTITY_NAME_REGEX = /^([A-Za-z0-9_]+)(?:\.([A-Za-z0-9_]+))?$/;
 
-function parseEntityName(entityName: string): Result<EntityName, string> {
-  const match = ENTITY_NAME_REGEX.exec(entityName);
-  if (match == null) {
-    return err(
-      `Invalid entity name: \`${entityName}\`. Expected \`ParentType\` or \`ParentType.fieldName\`.`,
-    );
+  switch (resolved.kind) {
+    case "NamedType": {
+      const astNode = resolved.type.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of type in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    case "Field": {
+      const astNode = resolved.field.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of field in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    case "InputField": {
+      const astNode = resolved.inputField.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of input field in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    case "EnumValue": {
+      const astNode = resolved.enumValue.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of enum value in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    case "FieldArgument": {
+      const astNode = resolved.fieldArgument.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of field argument in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    case "Directive": {
+      const astNode = resolved.directive.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of directive in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    case "DirectiveArgument": {
+      const astNode = resolved.directiveArgument.astNode;
+      if (astNode == null) {
+        throw new Error(
+          `Grats bug: Cannot find location of directive argument in coordinate \`${coordinate}\`.`,
+        );
+      }
+      return ok(nullThrows(astNode.name.loc));
+    }
+    default: {
+      // Exhaustive check — if new schema coordinate kinds are added,
+      // TypeScript will catch this.
+      const _exhaustive: never = resolved;
+      throw new Error(
+        `Grats bug: Unexpected schema coordinate kind: ${(resolved as { kind: string }).kind}`,
+      );
+    }
   }
-  const parent = match[1];
-  const field = match[2] || null;
-  return ok({ parent, field });
 }
diff --git a/src/TypeContext.ts b/src/TypeContext.ts
index f30c2ee6..41d32c61 100644
--- a/src/TypeContext.ts
+++ b/src/TypeContext.ts
@@ -13,11 +13,11 @@ import {
   gqlRelated,
   DiagnosticsResult,
   FixableDiagnosticWithLocation,
-} from "./utils/DiagnosticError";
-import { err, ok } from "./utils/Result";
-import * as E from "./Errors";
-import { ExtractionSnapshot } from "./Extractor";
-import { ResolverArgument } from "./resolverSignature";
+} from "./utils/DiagnosticError.js";
+import { err, ok } from "./utils/Result.js";
+import * as E from "./Errors.js";
+import { ExtractionSnapshot } from "./Extractor.js";
+import { ResolverArgument } from "./resolverSignature.js";
 
 export const UNRESOLVED_REFERENCE_NAME = `__UNRESOLVED_REFERENCE__`;
 
@@ -45,7 +45,7 @@ export type NameDefinition = {
 
 export type DeclarationDefinition = NameDefinition | DerivedResolverDefinition;
 
-import type { TsIdentifier } from "./utils/helpers";
+import type { TsIdentifier } from "./utils/helpers.js";
 
 /**
  * Public interface for TypeContext.
diff --git a/src/cli.ts b/src/cli.ts
index b392c2fb..67c0a288 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -3,38 +3,56 @@
 // LLM agent docs: See the llm-docs/ directory in the package root for
 // Markdown documentation covering all Grats features and configuration.
 
-import * as E from "./Errors";
+import * as E from "./Errors.js";
 import { Location } from "graphql";
-import { getParsedTsConfig } from "./";
+import { getParsedTsConfig } from "./index.js";
 import {
   SchemaAndDoc,
   buildSchemaAndDocResult,
   extractSchemaAndDoc,
-} from "./lib";
+} from "./lib.js";
 import { Command } from "commander";
-import { writeFileSync } from "fs";
+import { writeFileSync, readFileSync } from "fs";
 import { resolve, dirname } from "path";
-import { version } from "../package.json";
-import { locate } from "./Locate";
+import { fileURLToPath } from "url";
+import { locate } from "./Locate.js";
 import {
   printGratsSDL,
   printExecutableSchema,
   printEnumsModule,
-} from "./printSchema";
+} from "./printSchema.js";
 import * as ts from "typescript";
 import {
   diagnosticsMessage,
   locationlessErr,
   ReportableDiagnostics,
   DiagnosticsWithoutLocationResult,
-} from "./utils/DiagnosticError";
-import { GratsConfig, ParsedCommandLineGrats } from "./gratsConfig";
-import { err, ok } from "./utils/Result";
-import { cacheFromProgram, cachesAreEqual, RunCache } from "./runCache";
-import { withFixesFixed, FixOptions, applyFixes } from "./fixFixable";
+} from "./utils/DiagnosticError.js";
+import { GratsConfig, ParsedCommandLineGrats } from "./gratsConfig.js";
+import { err, ok } from "./utils/Result.js";
+import { cacheFromProgram, cachesAreEqual, RunCache } from "./runCache.js";
+import { withFixesFixed, FixOptions, applyFixes } from "./fixFixable.js";
 
 type BuildOptions = FixOptions;
 
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const version = readPackageVersion();
+
+function readPackageVersion(): string {
+  // Works from both source (src/cli.ts → ../package.json)
+  // and compiled output (dist/src/cli.js → ../../package.json)
+  for (const relPath of ["../package.json", "../../package.json"]) {
+    try {
+      const pkg = JSON.parse(readFileSync(resolve(__dirname, relPath), "utf8"));
+      if (pkg.name === "grats") return pkg.version;
+    } catch {
+      // Ignore missing/unreadable package.json files
+    }
+  }
+  return "unknown";
+}
+
 const program = new Command();
 
 program
@@ -57,7 +75,10 @@ program
 
 program
   .command("locate")
-  .argument("<ENTITY>", "GraphQL entity to locate. E.g. `User` or `User.id`")
+  .argument(
+    "<COORDINATE>",
+    "Schema coordinate to locate. E.g. `User`, `User.name`, `Query.user(id:)`, `@deprecated`",
+  )
   .option(
     "--tsconfig <TSCONFIG>",
     "Path to tsconfig.json. Defaults to auto-detecting based on the current working directory",
diff --git a/src/codegen/TSAstBuilder.ts b/src/codegen/TSAstBuilder.ts
index 403d1be5..2317acea 100644
--- a/src/codegen/TSAstBuilder.ts
+++ b/src/codegen/TSAstBuilder.ts
@@ -1,7 +1,7 @@
 import * as ts from "typescript";
-import { isNonNull } from "../utils/helpers";
+import { isNonNull } from "../utils/helpers.js";
 import * as path from "path";
-import { resolveRelativePath } from "../gratsRoot";
+import { resolveRelativePath } from "../gratsRoot.js";
 
 type JsonObject = { [key: string]: JsonValue };
 type JsonArray = JsonValue[];
diff --git a/src/codegen/enumCodegen.ts b/src/codegen/enumCodegen.ts
index 1fd2953f..ece3e97c 100644
--- a/src/codegen/enumCodegen.ts
+++ b/src/codegen/enumCodegen.ts
@@ -1,8 +1,8 @@
 import { GraphQLEnumType, GraphQLSchema, isEnumType } from "graphql";
 import * as ts from "typescript";
 import { GratsConfig } from "../gratsConfig.js";
-import { nullThrows } from "../utils/helpers";
-import TSAstBuilder from "./TSAstBuilder";
+import { nullThrows } from "../utils/helpers.js";
+import TSAstBuilder from "./TSAstBuilder.js";
 
 const F = ts.factory;
 
diff --git a/src/codegen/resolverCodegen.ts b/src/codegen/resolverCodegen.ts
index 99fc748b..f174f1ca 100644
--- a/src/codegen/resolverCodegen.ts
+++ b/src/codegen/resolverCodegen.ts
@@ -1,14 +1,14 @@
 import { ConstDirectiveNode, GraphQLField } from "graphql";
 import * as ts from "typescript";
-import { SEMANTIC_NON_NULL_DIRECTIVE } from "../publicDirectives";
+import { SEMANTIC_NON_NULL_DIRECTIVE } from "../publicDirectives.js";
 import {
   ASSERT_NON_NULL_HELPER,
   createAssertNonNullHelper,
-} from "../codegenHelpers";
-import { nullThrows } from "../utils/helpers";
-import { ResolverArgument, ResolverDefinition, Metadata } from "../metadata";
-import TSAstBuilder from "./TSAstBuilder";
-import { ExportDefinition } from "../GraphQLAstExtensions";
+} from "../codegenHelpers.js";
+import { nullThrows } from "../utils/helpers.js";
+import { ResolverArgument, ResolverDefinition, Metadata } from "../metadata.js";
+import TSAstBuilder from "./TSAstBuilder.js";
+import { ExportDefinition } from "../GraphQLAstExtensions.js";
 
 const RESOLVER_ARGS = ["source", "args", "context", "info"] as const;
 
diff --git a/src/codegen/resolverMapCodegen.ts b/src/codegen/resolverMapCodegen.ts
index 1bb5d2b9..a32b133b 100644
--- a/src/codegen/resolverMapCodegen.ts
+++ b/src/codegen/resolverMapCodegen.ts
@@ -1,10 +1,10 @@
 import * as ts from "typescript";
-import { GratsConfig } from "../gratsConfig";
-import TSAstBuilder from "./TSAstBuilder";
-import ResolverCodegen from "./resolverCodegen";
-import { Metadata, FieldDefinition } from "../metadata";
-import { GraphQLObjectType, GraphQLSchema } from "graphql";
-import { nullThrows } from "../utils/helpers";
+import { GratsConfig } from "../gratsConfig.js";
+import TSAstBuilder from "./TSAstBuilder.js";
+import ResolverCodegen from "./resolverCodegen.js";
+import { Metadata, FieldDefinition } from "../metadata.js";
+import { GraphQLSchema, isObjectType } from "graphql";
+import { nullThrows } from "../utils/helpers.js";
 
 const F = ts.factory;
 
@@ -89,7 +89,7 @@ class Codegen {
     fieldDefinitions: Record<string, FieldDefinition>,
   ): ts.ObjectLiteralElementLike[] {
     const graphQLType = this._schema.getType(typeName);
-    if (!(graphQLType instanceof GraphQLObjectType)) {
+    if (!isObjectType(graphQLType)) {
       throw new Error(`Type ${typeName} is not an object type`);
     }
     const fields: ts.ObjectLiteralElementLike[] = [];
diff --git a/src/codegen/schemaCodegen.ts b/src/codegen/schemaCodegen.ts
index d451dcc3..189b1b46 100644
--- a/src/codegen/schemaCodegen.ts
+++ b/src/codegen/schemaCodegen.ts
@@ -1,4 +1,5 @@
 import {
+  ConstDirectiveNode,
   GraphQLAbstractType,
   GraphQLArgument,
   GraphQLDirective,
@@ -27,14 +28,13 @@ import {
   valueFromASTUntyped,
 } from "graphql";
 import * as ts from "typescript";
-import { extend, nullThrows } from "../utils/helpers";
+import { extend, nullThrows } from "../utils/helpers.js";
 import { GratsConfig } from "../gratsConfig.js";
-import { naturalCompare } from "../utils/naturalCompare";
-import TSAstBuilder, { JsonValue } from "./TSAstBuilder";
-import ResolverCodegen from "./resolverCodegen";
-import { Metadata } from "../metadata";
-import { ConstDirectiveNode } from "graphql/language";
-import { ExportDefinition } from "../GraphQLAstExtensions";
+import { naturalCompare } from "../utils/naturalCompare.js";
+import TSAstBuilder, { JsonValue } from "./TSAstBuilder.js";
+import ResolverCodegen from "./resolverCodegen.js";
+import { Metadata } from "../metadata.js";
+import { ExportDefinition } from "../GraphQLAstExtensions.js";
 
 // These directives will be added to the schema by default, so we don't need to
 // include them in the generated schema.
@@ -95,7 +95,7 @@ class Codegen {
   schemaDeclarationExport(): void {
     const scalars = Object.values(this._schema.getTypeMap())
       .filter((type) => {
-        return type instanceof GraphQLScalarType;
+        return isScalarType(type);
       })
       .filter((type) => !BUILT_IN_SCALARS.has(type.name))
       .map((type) => {
@@ -691,15 +691,20 @@ class Codegen {
   }
 
   argConfig(arg: GraphQLArgument): ts.Expression {
+    // In graphql-js v17, defaultValue is deprecated in favor of `default`.
+    const argDefault = arg.default;
     return this.ts.objectLiteral([
       this.description(arg.description),
       this.deprecated(arg),
       F.createPropertyAssignment("type", this.typeReference(arg.type)),
-      // TODO: arg.defaultValue seems to be missing for complex objects
-      arg.defaultValue !== undefined
+      argDefault !== undefined
         ? F.createPropertyAssignment(
             "defaultValue",
-            this.defaultValue(arg.defaultValue),
+            this.defaultValue(
+              argDefault.value !== undefined
+                ? argDefault.value
+                : valueFromASTUntyped(argDefault.literal!),
+            ),
           )
         : null,
       this.extensions(arg.astNode?.directives),
diff --git a/src/comments.ts b/src/comments.ts
index 805e0da2..a1c47ef6 100644
--- a/src/comments.ts
+++ b/src/comments.ts
@@ -1,12 +1,12 @@
 import * as ts from "typescript";
-import { rangeErr } from "./utils/DiagnosticError";
-import * as E from "./Errors";
-import * as Act from "./CodeActions";
+import { rangeErr } from "./utils/DiagnosticError.js";
+import * as E from "./Errors.js";
+import * as Act from "./CodeActions.js";
 import {
   ALL_GQL_TAGS,
   KILLS_PARENT_ON_EXCEPTION_TAG,
   ONE_OF_TAG,
-} from "./Extractor";
+} from "./Extractor.js";
 
 // A line that starts with optional *s followed by @gql or @killsParentOnException
 const BLOCK_COMMENT_REGEX =
diff --git a/src/configSpec.ts b/src/configSpec.ts
index 4b66e406..2a8a8952 100644
--- a/src/configSpec.ts
+++ b/src/configSpec.ts
@@ -1,5 +1,10 @@
-import * as _GratsConfigSpec from "./configSpecRaw.json";
-import { ConfigSpec } from "./gratsConfig";
+import { createRequire } from "module";
+import { ConfigSpec } from "./gratsConfig.js";
+
+// Use createRequire to load JSON in ESM without `import ... with { type: "json" }`
+// which is not supported by webpack's babel-loader (used by the playground).
+const require = createRequire(import.meta.url);
+const _GratsConfigSpec = require("./configSpecRaw.json");
 
 // TypeScript does not preserve string literal types when importing JSON.
 export const GratsConfigSpec: ConfigSpec = _GratsConfigSpec as any;
diff --git a/src/configSpecRaw.json b/src/configSpecRaw.json
index f1d2fdc0..01db1f66 100644
--- a/src/configSpecRaw.json
+++ b/src/configSpecRaw.json
@@ -56,10 +56,10 @@
       "default": "/**\n * TypeScript enum definitions generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */"
     },
     "importModuleSpecifierEnding": {
-      "description": "This option allows you configure an extension that will be appended to the end of all import paths in the generated TypeScript schema file.\nWhen building a package that uses ES modules, import paths must not omit the file extension. In TypeScript code this generally means import paths must end with `.js`. If set to null, no ending will be appended.",
+      "description": "The extension appended to the end of all import paths in the generated TypeScript schema file. Defaults to `.js` which works for both CommonJS and ES module projects. Set to an empty string to omit the extension.",
       "type": { "kind": "string" },
       "nullable": false,
-      "default": ""
+      "default": ".js"
     },
     "EXPERIMENTAL__emitMetadata": {
       "description": "EXPERIMENTAL: THIS OPTION WILL BE RENAMED OR REMOVED IN A FUTURE RELEASE\nEmit a JSON file alongside the generated schema file which contains the metadata containing information about the resolvers.",
diff --git a/src/fixFixable.ts b/src/fixFixable.ts
index d926157a..f0dc406f 100644
--- a/src/fixFixable.ts
+++ b/src/fixFixable.ts
@@ -2,9 +2,9 @@ import * as ts from "typescript";
 import {
   DiagnosticsWithoutLocationResult,
   FixableDiagnostic,
-} from "./utils/DiagnosticError";
+} from "./utils/DiagnosticError.js";
 import { writeFileSync, readFileSync } from "fs";
-import { relativePath } from "./gratsRoot";
+import { relativePath } from "./gratsRoot.js";
 
 export type FixOptions = {
   fix: boolean;
diff --git a/src/gratsConfig.ts b/src/gratsConfig.ts
index 0688bd95..c76c7d3b 100644
--- a/src/gratsConfig.ts
+++ b/src/gratsConfig.ts
@@ -1,9 +1,9 @@
 import * as ts from "typescript";
-import { err, ok, Result } from "./utils/Result";
-import { invariant } from "./utils/helpers";
-import { locationlessErr } from "./utils/DiagnosticError";
-import { GratsConfigSpec } from "./configSpec";
-import { GratsConfig } from "./TGratsConfig";
+import { err, ok, Result } from "./utils/Result.js";
+import { invariant } from "./utils/helpers.js";
+import { locationlessErr } from "./utils/DiagnosticError.js";
+import { GratsConfigSpec } from "./configSpec.js";
+import type { GratsConfig } from "./TGratsConfig.js";
 
 /**
  * For Grats's config object we need the following:
diff --git a/src/gratsRoot.ts b/src/gratsRoot.ts
index 3e5b00db..92d6dc2c 100644
--- a/src/gratsRoot.ts
+++ b/src/gratsRoot.ts
@@ -1,4 +1,5 @@
-import { relative, resolve, join } from "path";
+import { relative, resolve, join, dirname } from "path";
+import { fileURLToPath } from "url";
 
 // Grats parses TypeScript files and finds resolvers. If the field resolver is a
 // named export, Grats needs to be able to import that file during execution.
@@ -7,7 +8,15 @@ import { relative, resolve, join } from "path";
 // the path to the module that contains the resolver. In order to allow those
 // paths to be relative, they must be relative to something that both the build
 // step and the runtime can agree on. This path is that thing.
-const gratsRoot = join(__dirname, "../..");
+
+// This file lives at src/gratsRoot.ts (source) or dist/src/gratsRoot.js
+// (compiled). In both cases, going up two levels reaches the project root.
+// In the browser (webpack playground), fileURLToPath may not be available
+// since the `url` module is stubbed out via webpack fallback.
+const gratsRoot =
+  typeof fileURLToPath === "function"
+    ? join(dirname(fileURLToPath(import.meta.url)), "../..")
+    : ".";
 
 export function relativePath(absolute: string): string {
   return relative(gratsRoot, absolute);
diff --git a/src/index.ts b/src/index.ts
index a7487016..ada33786 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,17 +2,17 @@
 // Markdown documentation covering all Grats features and configuration.
 
 import * as ts from "typescript";
-import { ParsedCommandLineGrats, validateGratsOptions } from "./gratsConfig";
-import { DiagnosticsWithoutLocationResult } from "./utils/DiagnosticError";
-import { err } from "./utils/Result";
+import { ParsedCommandLineGrats, validateGratsOptions } from "./gratsConfig.js";
+import { DiagnosticsWithoutLocationResult } from "./utils/DiagnosticError.js";
+import { err } from "./utils/Result.js";
 
-export { printSDLWithoutMetadata } from "./printSchema";
-export * from "./Types";
-export * from "./lib";
+export { printSDLWithoutMetadata } from "./printSchema.js";
+export * from "./Types.js";
+export * from "./lib.js";
 // Used by the experimental TypeScript plugin
-export { extract } from "./Extractor";
-export { codegen } from "./codegen/schemaCodegen";
-export { ReportableDiagnostics } from "./utils/DiagnosticError";
+export { extract } from "./Extractor.js";
+export { codegen } from "./codegen/schemaCodegen.js";
+export { ReportableDiagnostics } from "./utils/DiagnosticError.js";
 
 // #FIXME: Report diagnostics instead of throwing!
 export function getParsedTsConfig(
diff --git a/src/lib.ts b/src/lib.ts
index 11a9c382..1582b17d 100644
--- a/src/lib.ts
+++ b/src/lib.ts
@@ -9,40 +9,40 @@ import {
 import {
   DiagnosticsWithoutLocationResult,
   graphQlErrorToDiagnostic,
-} from "./utils/DiagnosticError";
-import { concatResults, ResultPipe } from "./utils/Result";
-import { ok, err } from "./utils/Result";
+} from "./utils/DiagnosticError.js";
+import { concatResults, ResultPipe } from "./utils/Result.js";
+import { ok, err } from "./utils/Result.js";
 import * as ts from "typescript";
-import { ExtractionSnapshot } from "./Extractor";
-import { TypeContext } from "./TypeContext";
-import { validateSDL } from "graphql/validation/validate";
-import { ParsedCommandLineGrats } from "./gratsConfig";
-import { validateTypenames } from "./validations/validateTypenames";
-import { extractSnapshotsFromProgram } from "./transforms/snapshotsFromProgram";
-import { validateMergedInterfaces } from "./validations/validateMergedInterfaces";
-import { addInterfaceFields } from "./transforms/addInterfaceFields";
-import { filterNonGqlInterfaces } from "./transforms/filterNonGqlInterfaces";
-import { validateAsyncIterable } from "./validations/validateAsyncIterable";
-import { applyDefaultNullability } from "./transforms/applyDefaultNullability";
-import { mergeExtensions } from "./transforms/mergeExtensions";
-import { sortSchemaAst } from "./transforms/sortSchemaAst";
-import { validateDuplicateContextOrInfo } from "./validations/validateDuplicateContextOrInfo";
-import { validateSemanticNullability } from "./validations/validateSemanticNullability";
-import { resolveTypes } from "./transforms/resolveTypes";
-import { resolveResolverParams } from "./transforms/resolveResolverParams";
-import { customSpecValidations } from "./validations/customSpecValidations";
-import { makeResolverSignature } from "./transforms/makeResolverSignature";
-import { addImplicitRootTypes } from "./transforms/addImplicitRootTypes";
-import { Metadata } from "./metadata";
-import { validateDirectiveArguments } from "./validations/validateDirectiveArguments";
-import { coerceDefaultEnumValues } from "./transforms/coerceDefaultEnumValues";
-import { validateSomeTypesAreDefined } from "./validations/validateSomeTypesAreDefined";
+import { ExtractionSnapshot } from "./Extractor.js";
+import { TypeContext } from "./TypeContext.js";
+import { validateSDL } from "graphql/validation/validate.js";
+import { ParsedCommandLineGrats } from "./gratsConfig.js";
+import { validateTypenames } from "./validations/validateTypenames.js";
+import { extractSnapshotsFromProgram } from "./transforms/snapshotsFromProgram.js";
+import { validateMergedInterfaces } from "./validations/validateMergedInterfaces.js";
+import { addInterfaceFields } from "./transforms/addInterfaceFields.js";
+import { filterNonGqlInterfaces } from "./transforms/filterNonGqlInterfaces.js";
+import { validateAsyncIterable } from "./validations/validateAsyncIterable.js";
+import { applyDefaultNullability } from "./transforms/applyDefaultNullability.js";
+import { mergeExtensions } from "./transforms/mergeExtensions.js";
+import { sortSchemaAst } from "./transforms/sortSchemaAst.js";
+import { validateDuplicateContextOrInfo } from "./validations/validateDuplicateContextOrInfo.js";
+import { validateSemanticNullability } from "./validations/validateSemanticNullability.js";
+import { resolveTypes } from "./transforms/resolveTypes.js";
+import { resolveResolverParams } from "./transforms/resolveResolverParams.js";
+import { customSpecValidations } from "./validations/customSpecValidations.js";
+import { makeResolverSignature } from "./transforms/makeResolverSignature.js";
+import { addImplicitRootTypes } from "./transforms/addImplicitRootTypes.js";
+import { Metadata } from "./metadata.js";
+import { validateDirectiveArguments } from "./validations/validateDirectiveArguments.js";
+import { coerceDefaultEnumValues } from "./transforms/coerceDefaultEnumValues.js";
+import { validateSomeTypesAreDefined } from "./validations/validateSomeTypesAreDefined.js";
 
 // Export the TypeScript plugin implementation used by
 // grats-ts-plugin
-export { initTsPlugin } from "./tsPlugin/initTsPlugin";
+export { initTsPlugin } from "./tsPlugin/initTsPlugin.js";
 
-export type { GratsConfig } from "./gratsConfig";
+export type { GratsConfig } from "./gratsConfig.js";
 
 export type SchemaAndDoc = {
   schema: GraphQLSchema;
diff --git a/src/printSchema.ts b/src/printSchema.ts
index 98ee268e..e17c8514 100644
--- a/src/printSchema.ts
+++ b/src/printSchema.ts
@@ -4,12 +4,12 @@ import {
   print,
   specifiedScalarTypes,
 } from "graphql";
-import { GratsConfig } from "./gratsConfig";
-import { codegen } from "./codegen/schemaCodegen";
-import { Metadata } from "./metadata";
-import { resolverMapCodegen } from "./codegen/resolverMapCodegen";
-import { codegenEnums } from "./codegen/enumCodegen";
-import { mapDefinitions } from "./utils/visitor";
+import { GratsConfig } from "./gratsConfig.js";
+import { codegen } from "./codegen/schemaCodegen.js";
+import { Metadata } from "./metadata.js";
+import { resolverMapCodegen } from "./codegen/resolverMapCodegen.js";
+import { codegenEnums } from "./codegen/enumCodegen.js";
+import { mapDefinitions } from "./utils/visitor.js";
 
 /**
  * Prints code for a TypeScript module that exports a GraphQLSchema.
diff --git a/src/publicDirectives.ts b/src/publicDirectives.ts
index 31a470ca..f863917f 100644
--- a/src/publicDirectives.ts
+++ b/src/publicDirectives.ts
@@ -6,7 +6,7 @@ import {
   Location,
   parse,
 } from "graphql";
-import { uniqueId } from "./utils/helpers";
+import { uniqueId } from "./utils/helpers.js";
 
 /**
  * Grats supports some additional, non-spec server directives in order to
diff --git a/src/resolverSignature.ts b/src/resolverSignature.ts
index fbb5a84b..7da1cd73 100644
--- a/src/resolverSignature.ts
+++ b/src/resolverSignature.ts
@@ -9,7 +9,7 @@ import {
   StringValueNode,
   TypeNode,
 } from "graphql";
-import { DiagnosticResult } from "./utils/DiagnosticError";
+import { DiagnosticResult } from "./utils/DiagnosticError.js";
 
 /**
  * Describes the backing resolver for a field. This broadly matches the metadata
diff --git a/src/tests/TestRunner.ts b/src/tests/TestRunner.ts
index 03738faf..0bf906a4 100644
--- a/src/tests/TestRunner.ts
+++ b/src/tests/TestRunner.ts
@@ -1,9 +1,9 @@
 import * as fs from "fs";
 import * as path from "path";
 import { diff } from "jest-diff";
-import { ask } from "./yesNo";
-import { Result } from "../utils/Result";
-import { Markdown } from "./Markdown";
+import { ask } from "./yesNo.js";
+import { Result } from "../utils/Result.js";
+import { Markdown } from "./Markdown.js";
 
 export type TransformerResult = Result<Markdown, Markdown> | false;
 
diff --git a/src/tests/configParserFixtures/empty.json.expected.md b/src/tests/configParserFixtures/empty.json.expected.md
index 3d8c5c83..42e0fa7b 100644
--- a/src/tests/configParserFixtures/empty.json.expected.md
+++ b/src/tests/configParserFixtures/empty.json.expected.md
@@ -21,7 +21,7 @@
   "schemaHeader": "# Schema generated by Grats (https://grats.capt.dev)\n# Do not manually edit. Regenerate by running `npx grats`.",
   "tsSchemaHeader": "/**\n * Executable schema generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */",
   "tsClientEnumsHeader": "/**\n * TypeScript enum definitions generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */",
-  "importModuleSpecifierEnding": "",
+  "importModuleSpecifierEnding": ".js",
   "EXPERIMENTAL__emitMetadata": false,
   "EXPERIMENTAL__emitResolverMap": false
 }
diff --git a/src/tests/configParserFixtures/experimentalField.json.expected.md b/src/tests/configParserFixtures/experimentalField.json.expected.md
index 3df71cde..b3f978a5 100644
--- a/src/tests/configParserFixtures/experimentalField.json.expected.md
+++ b/src/tests/configParserFixtures/experimentalField.json.expected.md
@@ -23,7 +23,7 @@
   "schemaHeader": "# Schema generated by Grats (https://grats.capt.dev)\n# Do not manually edit. Regenerate by running `npx grats`.",
   "tsSchemaHeader": "/**\n * Executable schema generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */",
   "tsClientEnumsHeader": "/**\n * TypeScript enum definitions generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */",
-  "importModuleSpecifierEnding": "",
+  "importModuleSpecifierEnding": ".js",
   "EXPERIMENTAL__emitMetadata": true,
   "EXPERIMENTAL__emitResolverMap": false
 }
diff --git a/src/tests/configParserFixtures/multiLineHeader.json.expected.md b/src/tests/configParserFixtures/multiLineHeader.json.expected.md
index 94ea0be6..d5cd4f51 100644
--- a/src/tests/configParserFixtures/multiLineHeader.json.expected.md
+++ b/src/tests/configParserFixtures/multiLineHeader.json.expected.md
@@ -23,7 +23,7 @@
   "schemaHeader": "/**\n * An amazing GraphQL schema\n */",
   "tsSchemaHeader": "/**\n * Executable schema generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */",
   "tsClientEnumsHeader": "/**\n * TypeScript enum definitions generated by Grats (https://grats.capt.dev)\n * Do not manually edit. Regenerate by running `npx grats`.\n */",
-  "importModuleSpecifierEnding": "",
+  "importModuleSpecifierEnding": ".js",
   "EXPERIMENTAL__emitMetadata": false,
   "EXPERIMENTAL__emitResolverMap": false
 }
diff --git a/src/tests/fixtures/arguments/CustomScalarArgument.ts.expected.md b/src/tests/fixtures/arguments/CustomScalarArgument.ts.expected.md
index fe961611..7e912bad 100644
--- a/src/tests/fixtures/arguments/CustomScalarArgument.ts.expected.md
+++ b/src/tests/fixtures/arguments/CustomScalarArgument.ts.expected.md
@@ -31,7 +31,7 @@ type SomeType {
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyString as MyStringInternal } from "./CustomScalarArgument";
+import type { MyString as MyStringInternal } from "./CustomScalarArgument.js";
 import { GraphQLSchema, GraphQLScalarType, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/arguments/PositionalArgDeprecatedWithDefault.ts.expected.md b/src/tests/fixtures/arguments/PositionalArgDeprecatedWithDefault.ts.expected.md
index 16e6bdd2..d6f432f4 100644
--- a/src/tests/fixtures/arguments/PositionalArgDeprecatedWithDefault.ts.expected.md
+++ b/src/tests/fixtures/arguments/PositionalArgDeprecatedWithDefault.ts.expected.md
@@ -32,7 +32,7 @@ input Greeting {
 }
 
 type SomeType {
-  hello(greeting: Greeting! = {name: "Alice", salutation: "Hullo"} @deprecated(reason: "Unused!")): String
+  hello(greeting: Greeting! = { name: "Alice", salutation: "Hullo" } @deprecated(reason: "Unused!")): String
 }
 ```
 
diff --git a/src/tests/fixtures/custom_scalars/DefineCustomScalar.ts.expected.md b/src/tests/fixtures/custom_scalars/DefineCustomScalar.ts.expected.md
index 2d75f30a..680c7dd5 100644
--- a/src/tests/fixtures/custom_scalars/DefineCustomScalar.ts.expected.md
+++ b/src/tests/fixtures/custom_scalars/DefineCustomScalar.ts.expected.md
@@ -29,7 +29,7 @@ type SomeType {
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyUrl as MyUrlInternal } from "./DefineCustomScalar";
+import type { MyUrl as MyUrlInternal } from "./DefineCustomScalar.js";
 import { GraphQLSchema, GraphQLScalarType, GraphQLObjectType, GraphQLString } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/custom_scalars/DefineCustomScalarWithDescription.ts.expected.md b/src/tests/fixtures/custom_scalars/DefineCustomScalarWithDescription.ts.expected.md
index a3979d49..568c82f2 100644
--- a/src/tests/fixtures/custom_scalars/DefineCustomScalarWithDescription.ts.expected.md
+++ b/src/tests/fixtures/custom_scalars/DefineCustomScalarWithDescription.ts.expected.md
@@ -33,7 +33,7 @@ type SomeType {
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyUrl as MyUrlInternal } from "./DefineCustomScalarWithDescription";
+import type { MyUrl as MyUrlInternal } from "./DefineCustomScalarWithDescription.js";
 import { GraphQLSchema, GraphQLScalarType, GraphQLObjectType, GraphQLString } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/custom_scalars/DefineRenamedCustomScalar.ts.expected.md b/src/tests/fixtures/custom_scalars/DefineRenamedCustomScalar.ts.expected.md
index 6899daf6..9da31ae4 100644
--- a/src/tests/fixtures/custom_scalars/DefineRenamedCustomScalar.ts.expected.md
+++ b/src/tests/fixtures/custom_scalars/DefineRenamedCustomScalar.ts.expected.md
@@ -29,7 +29,7 @@ type SomeType {
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyUrl as CustomNameInternal } from "./DefineRenamedCustomScalar";
+import type { MyUrl as CustomNameInternal } from "./DefineRenamedCustomScalar.js";
 import { GraphQLSchema, GraphQLScalarType, GraphQLObjectType, GraphQLString } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/custom_scalars/SpecifiedBy.ts.expected.md b/src/tests/fixtures/custom_scalars/SpecifiedBy.ts.expected.md
index 384181b9..6ce0c225 100644
--- a/src/tests/fixtures/custom_scalars/SpecifiedBy.ts.expected.md
+++ b/src/tests/fixtures/custom_scalars/SpecifiedBy.ts.expected.md
@@ -22,7 +22,7 @@ scalar UUID @specifiedBy(url: "https://tools.ietf.org/html/rfc4122")
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { UUID as UUIDInternal } from "./SpecifiedBy";
+import type { UUID as UUIDInternal } from "./SpecifiedBy.js";
 import { GraphQLSchema, GraphQLScalarType } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/custom_scalars/SpecifiedByMissingUrlinvalid.invalid.ts.expected.md b/src/tests/fixtures/custom_scalars/SpecifiedByMissingUrlinvalid.invalid.ts.expected.md
index 5bdd2838..80eafb76 100644
--- a/src/tests/fixtures/custom_scalars/SpecifiedByMissingUrlinvalid.invalid.ts.expected.md
+++ b/src/tests/fixtures/custom_scalars/SpecifiedByMissingUrlinvalid.invalid.ts.expected.md
@@ -15,7 +15,7 @@ export type UUID = string;
 ### Error Report
 
 ```text
-src/tests/fixtures/custom_scalars/SpecifiedByMissingUrlinvalid.invalid.ts:3:4 - error: Directive "@specifiedBy" argument "url" of type "String!" is required, but it was not provided.
+src/tests/fixtures/custom_scalars/SpecifiedByMissingUrlinvalid.invalid.ts:3:4 - error: Argument "@specifiedBy(url:)" of type "String!" is required, but it was not provided.
 
 3  * @gqlAnnotate specifiedBy
      ~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/src/tests/fixtures/default_values/DefaultArgumentObjectLiteral.ts.expected.md b/src/tests/fixtures/default_values/DefaultArgumentObjectLiteral.ts.expected.md
index c41ab0ae..1ca1d03a 100644
--- a/src/tests/fixtures/default_values/DefaultArgumentObjectLiteral.ts.expected.md
+++ b/src/tests/fixtures/default_values/DefaultArgumentObjectLiteral.ts.expected.md
@@ -35,7 +35,7 @@ input ConnectionInput {
 }
 
 type SomeType {
-  someField1(input: ConnectionInput = {first: 10, offset: 100}): String
+  someField1(input: ConnectionInput = { first: 10, offset: 100 }): String
 }
 ```
 
diff --git a/src/tests/fixtures/derived_context/derivedContextPromiseValid.ts.expected.md b/src/tests/fixtures/derived_context/derivedContextPromiseValid.ts.expected.md
index 10b83e3d..6856bcd8 100644
--- a/src/tests/fixtures/derived_context/derivedContextPromiseValid.ts.expected.md
+++ b/src/tests/fixtures/derived_context/derivedContextPromiseValid.ts.expected.md
@@ -39,7 +39,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver, createDerivedContext } from "./derivedContextPromiseValid";
+import { greeting as queryGreetingResolver, createDerivedContext } from "./derivedContextPromiseValid.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/derived_context/derivedContextUsedMultipleTimes.ts.expected.md b/src/tests/fixtures/derived_context/derivedContextUsedMultipleTimes.ts.expected.md
index 2a10d5bd..548272e6 100644
--- a/src/tests/fixtures/derived_context/derivedContextUsedMultipleTimes.ts.expected.md
+++ b/src/tests/fixtures/derived_context/derivedContextUsedMultipleTimes.ts.expected.md
@@ -46,7 +46,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { farewell as queryFarewellResolver, greetingContext, greeting as queryGreetingResolver } from "./derivedContextUsedMultipleTimes";
+import { farewell as queryFarewellResolver, greetingContext, greeting as queryGreetingResolver } from "./derivedContextUsedMultipleTimes.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/derived_context/nestedAsyncDerivedContext.ts.expected.md b/src/tests/fixtures/derived_context/nestedAsyncDerivedContext.ts.expected.md
index b32abb54..0cefc697 100644
--- a/src/tests/fixtures/derived_context/nestedAsyncDerivedContext.ts.expected.md
+++ b/src/tests/fixtures/derived_context/nestedAsyncDerivedContext.ts.expected.md
@@ -49,7 +49,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver, createDerivedContext2, createDerivedContext1 } from "./nestedAsyncDerivedContext";
+import { greeting as queryGreetingResolver, createDerivedContext2, createDerivedContext1 } from "./nestedAsyncDerivedContext.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/derived_context/simpleDerivedContext.ts.expected.md b/src/tests/fixtures/derived_context/simpleDerivedContext.ts.expected.md
index b30322c2..1285c227 100644
--- a/src/tests/fixtures/derived_context/simpleDerivedContext.ts.expected.md
+++ b/src/tests/fixtures/derived_context/simpleDerivedContext.ts.expected.md
@@ -40,7 +40,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver, createDerivedContext } from "./simpleDerivedContext";
+import { greeting as queryGreetingResolver, createDerivedContext } from "./simpleDerivedContext.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/derived_context/simpleDerivedContextNoArgs.ts.expected.md b/src/tests/fixtures/derived_context/simpleDerivedContextNoArgs.ts.expected.md
index fa2330da..2b6ff7a3 100644
--- a/src/tests/fixtures/derived_context/simpleDerivedContextNoArgs.ts.expected.md
+++ b/src/tests/fixtures/derived_context/simpleDerivedContextNoArgs.ts.expected.md
@@ -40,7 +40,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver, createDerivedContext } from "./simpleDerivedContextNoArgs";
+import { greeting as queryGreetingResolver, createDerivedContext } from "./simpleDerivedContextNoArgs.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/directives/directiveArgFieldInvalid.invalid.ts.expected.md b/src/tests/fixtures/directives/directiveArgFieldInvalid.invalid.ts.expected.md
index 3107dd1c..be425b57 100644
--- a/src/tests/fixtures/directives/directiveArgFieldInvalid.invalid.ts.expected.md
+++ b/src/tests/fixtures/directives/directiveArgFieldInvalid.invalid.ts.expected.md
@@ -35,5 +35,5 @@ GraphQL request:1:27 - error: String cannot represent a non string value: 10
   src/tests/fixtures/directives/directiveArgFieldInvalid.invalid.ts:4:1
     4 type MyInput = { a: string };
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    Parent input type defined here
+    Input type defined here
 ```
\ No newline at end of file
diff --git a/src/tests/fixtures/directives/directiveOnArgumentDefinition.ts.expected.md b/src/tests/fixtures/directives/directiveOnArgumentDefinition.ts.expected.md
index 2cc5ba7f..2eaf465b 100644
--- a/src/tests/fixtures/directives/directiveOnArgumentDefinition.ts.expected.md
+++ b/src/tests/fixtures/directives/directiveOnArgumentDefinition.ts.expected.md
@@ -39,7 +39,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, GraphQLNonNull, GraphQLInt, specifiedDirectives, GraphQLObjectType, GraphQLString } from "graphql";
-import { likes as queryLikesResolver } from "./directiveOnArgumentDefinition";
+import { likes as queryLikesResolver } from "./directiveOnArgumentDefinition.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/directives/directiveOnFieldDefinition.ts.expected.md b/src/tests/fixtures/directives/directiveOnFieldDefinition.ts.expected.md
index 990a6d07..47179deb 100644
--- a/src/tests/fixtures/directives/directiveOnFieldDefinition.ts.expected.md
+++ b/src/tests/fixtures/directives/directiveOnFieldDefinition.ts.expected.md
@@ -38,7 +38,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, GraphQLNonNull, GraphQLInt, specifiedDirectives, GraphQLObjectType, GraphQLString } from "graphql";
-import { likes as queryLikesResolver } from "./directiveOnFieldDefinition";
+import { likes as queryLikesResolver } from "./directiveOnFieldDefinition.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/directives/directiveOnScalar.ts.expected.md b/src/tests/fixtures/directives/directiveOnScalar.ts.expected.md
index 2b7aae1e..2fc5f8eb 100644
--- a/src/tests/fixtures/directives/directiveOnScalar.ts.expected.md
+++ b/src/tests/fixtures/directives/directiveOnScalar.ts.expected.md
@@ -32,7 +32,7 @@ scalar MyScalar @max(foo: 10)
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyScalar as MyScalarInternal } from "./directiveOnScalar";
+import type { MyScalar as MyScalarInternal } from "./directiveOnScalar.js";
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, GraphQLNonNull, GraphQLInt, specifiedDirectives, GraphQLScalarType } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/directives/undefinedDirectiveWithoutArgs.ts.expected.md b/src/tests/fixtures/directives/undefinedDirectiveWithoutArgs.ts.expected.md
index 372b93dd..96cdc91d 100644
--- a/src/tests/fixtures/directives/undefinedDirectiveWithoutArgs.ts.expected.md
+++ b/src/tests/fixtures/directives/undefinedDirectiveWithoutArgs.ts.expected.md
@@ -26,7 +26,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { myQueryField as queryMyQueryFieldResolver } from "./undefinedDirectiveWithoutArgs";
+import { myQueryField as queryMyQueryFieldResolver } from "./undefinedDirectiveWithoutArgs.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/enums/NonNullEnumDefault.ts.expected.md b/src/tests/fixtures/enums/NonNullEnumDefault.ts.expected.md
index a61bd2ee..863e5de2 100644
--- a/src/tests/fixtures/enums/NonNullEnumDefault.ts.expected.md
+++ b/src/tests/fixtures/enums/NonNullEnumDefault.ts.expected.md
@@ -34,7 +34,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./NonNullEnumDefault";
+import { hello as queryHelloResolver } from "./NonNullEnumDefault.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/fixtures/enums/NonNullEnumDefaultInInputObject.ts.expected.md b/src/tests/fixtures/enums/NonNullEnumDefaultInInputObject.ts.expected.md
index 9bc14ca2..99609468 100644
--- a/src/tests/fixtures/enums/NonNullEnumDefaultInInputObject.ts.expected.md
+++ b/src/tests/fixtures/enums/NonNullEnumDefaultInInputObject.ts.expected.md
@@ -37,7 +37,7 @@ input GreetingInput {
 }
 
 type Query {
-  hello(input: GreetingInput! = {greeting: Greetings}): String
+  hello(input: GreetingInput! = { greeting: Greetings }): String
 }
 ```
 
@@ -45,7 +45,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLInputObjectType, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./NonNullEnumDefaultInInputObject";
+import { hello as queryHelloResolver } from "./NonNullEnumDefaultInInputObject.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/fixtures/enums/NonNullPluralEnumDefaults.ts.expected.md b/src/tests/fixtures/enums/NonNullPluralEnumDefaults.ts.expected.md
index 4dd4f389..9be1a520 100644
--- a/src/tests/fixtures/enums/NonNullPluralEnumDefaults.ts.expected.md
+++ b/src/tests/fixtures/enums/NonNullPluralEnumDefaults.ts.expected.md
@@ -36,7 +36,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLList, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./NonNullPluralEnumDefaults";
+import { hello as queryHelloResolver } from "./NonNullPluralEnumDefaults.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/fixtures/enums/NonNullTsEnumDefault.ts.expected.md b/src/tests/fixtures/enums/NonNullTsEnumDefault.ts.expected.md
index aecf3a08..96355a69 100644
--- a/src/tests/fixtures/enums/NonNullTsEnumDefault.ts.expected.md
+++ b/src/tests/fixtures/enums/NonNullTsEnumDefault.ts.expected.md
@@ -41,7 +41,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./NonNullTsEnumDefault";
+import { hello as queryHelloResolver } from "./NonNullTsEnumDefault.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/fixtures/enums/NonNullTsEnumDefaultStringLiteral.ts.expected.md b/src/tests/fixtures/enums/NonNullTsEnumDefaultStringLiteral.ts.expected.md
index 135aae57..6d7d36fe 100644
--- a/src/tests/fixtures/enums/NonNullTsEnumDefaultStringLiteral.ts.expected.md
+++ b/src/tests/fixtures/enums/NonNullTsEnumDefaultStringLiteral.ts.expected.md
@@ -41,7 +41,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./NonNullTsEnumDefaultStringLiteral";
+import { hello as queryHelloResolver } from "./NonNullTsEnumDefaultStringLiteral.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/fixtures/examples/playground.ts.expected.md b/src/tests/fixtures/examples/playground.ts.expected.md
index ad0b8e04..b5399267 100644
--- a/src/tests/fixtures/examples/playground.ts.expected.md
+++ b/src/tests/fixtures/examples/playground.ts.expected.md
@@ -60,7 +60,7 @@ type User {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { getUser as someTypeGetUserResolver } from "./playground";
+import { getUser as someTypeGetUserResolver } from "./playground.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/fixtures/examples/readme.ts.expected.md b/src/tests/fixtures/examples/readme.ts.expected.md
index 95b51c82..5af0f177 100644
--- a/src/tests/fixtures/examples/readme.ts.expected.md
+++ b/src/tests/fixtures/examples/readme.ts.expected.md
@@ -54,7 +54,7 @@ type User {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { me as queryMeResolver, viewer as queryViewerResolver } from "./readme";
+import { me as queryMeResolver, viewer as queryViewerResolver } from "./readme.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/fixtures/extend_interface/addStringFieldToInterface.ts.expected.md b/src/tests/fixtures/extend_interface/addStringFieldToInterface.ts.expected.md
index a3ae65bf..685340a7 100644
--- a/src/tests/fixtures/extend_interface/addStringFieldToInterface.ts.expected.md
+++ b/src/tests/fixtures/extend_interface/addStringFieldToInterface.ts.expected.md
@@ -57,7 +57,7 @@ type User implements IPerson {
 
 ```ts
 import { GraphQLSchema, GraphQLInterfaceType, GraphQLString, GraphQLObjectType } from "graphql";
-import { greeting as adminGreetingResolver, greeting as userGreetingResolver } from "./addStringFieldToInterface";
+import { greeting as adminGreetingResolver, greeting as userGreetingResolver } from "./addStringFieldToInterface.js";
 export function getSchema(): GraphQLSchema {
     const IPersonType: GraphQLInterfaceType = new GraphQLInterfaceType({
         name: "IPerson",
diff --git a/src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts.expected.md b/src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts.expected.md
index 76203769..8488914c 100644
--- a/src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts.expected.md
+++ b/src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts.expected.md
@@ -63,7 +63,7 @@ type User implements IPerson & IThing {
 
 ```ts
 import { GraphQLSchema, GraphQLInterfaceType, GraphQLString, GraphQLObjectType } from "graphql";
-import { greeting as adminGreetingResolver, greeting as userGreetingResolver } from "./addStringFieldToInterfaceImplementedByInterface";
+import { greeting as adminGreetingResolver, greeting as userGreetingResolver } from "./addStringFieldToInterfaceImplementedByInterface.js";
 export function getSchema(): GraphQLSchema {
     const IThingType: GraphQLInterfaceType = new GraphQLInterfaceType({
         name: "IThing",
diff --git a/src/tests/fixtures/extend_type/addDeprecatedField.ts.expected.md b/src/tests/fixtures/extend_type/addDeprecatedField.ts.expected.md
index 2c2eea4b..0768213b 100644
--- a/src/tests/fixtures/extend_type/addDeprecatedField.ts.expected.md
+++ b/src/tests/fixtures/extend_type/addDeprecatedField.ts.expected.md
@@ -31,7 +31,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./addDeprecatedField";
+import { greeting as someTypeGreetingResolver } from "./addDeprecatedField.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/addFieldWithArguments.ts.expected.md b/src/tests/fixtures/extend_type/addFieldWithArguments.ts.expected.md
index d1bfd965..a35492b1 100644
--- a/src/tests/fixtures/extend_type/addFieldWithArguments.ts.expected.md
+++ b/src/tests/fixtures/extend_type/addFieldWithArguments.ts.expected.md
@@ -28,7 +28,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./addFieldWithArguments";
+import { greeting as someTypeGreetingResolver } from "./addFieldWithArguments.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/addFieldWithDescription.ts.expected.md b/src/tests/fixtures/extend_type/addFieldWithDescription.ts.expected.md
index b1583bac..42b2c25e 100644
--- a/src/tests/fixtures/extend_type/addFieldWithDescription.ts.expected.md
+++ b/src/tests/fixtures/extend_type/addFieldWithDescription.ts.expected.md
@@ -32,7 +32,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./addFieldWithDescription";
+import { greeting as someTypeGreetingResolver } from "./addFieldWithDescription.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/addRenamedFieldToSomeType.ts.expected.md b/src/tests/fixtures/extend_type/addRenamedFieldToSomeType.ts.expected.md
index 7d3d312a..64ac460c 100644
--- a/src/tests/fixtures/extend_type/addRenamedFieldToSomeType.ts.expected.md
+++ b/src/tests/fixtures/extend_type/addRenamedFieldToSomeType.ts.expected.md
@@ -28,7 +28,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeHelloResolver } from "./addRenamedFieldToSomeType";
+import { greeting as someTypeHelloResolver } from "./addRenamedFieldToSomeType.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/addStringFieldToSomeType.ts.expected.md b/src/tests/fixtures/extend_type/addStringFieldToSomeType.ts.expected.md
index 560a641c..e59b0b17 100644
--- a/src/tests/fixtures/extend_type/addStringFieldToSomeType.ts.expected.md
+++ b/src/tests/fixtures/extend_type/addStringFieldToSomeType.ts.expected.md
@@ -28,7 +28,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./addStringFieldToSomeType";
+import { greeting as someTypeGreetingResolver } from "./addStringFieldToSomeType.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/defaultExport.ts.expected.md b/src/tests/fixtures/extend_type/defaultExport.ts.expected.md
index 51e12909..493c4647 100644
--- a/src/tests/fixtures/extend_type/defaultExport.ts.expected.md
+++ b/src/tests/fixtures/extend_type/defaultExport.ts.expected.md
@@ -27,7 +27,7 @@ type SomeType {
 ### TypeScript
 
 ```ts
-import someTypeGreetingResolver from "./defaultExport";
+import someTypeGreetingResolver from "./defaultExport.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
diff --git a/src/tests/fixtures/extend_type/fieldAsExportedArrowFunction.ts.expected.md b/src/tests/fixtures/extend_type/fieldAsExportedArrowFunction.ts.expected.md
index 81308322..0a5479b4 100644
--- a/src/tests/fixtures/extend_type/fieldAsExportedArrowFunction.ts.expected.md
+++ b/src/tests/fixtures/extend_type/fieldAsExportedArrowFunction.ts.expected.md
@@ -28,7 +28,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./fieldAsExportedArrowFunction";
+import { greeting as someTypeGreetingResolver } from "./fieldAsExportedArrowFunction.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/fieldAsExportedArrowFunctionPositionalArgs.ts.expected.md b/src/tests/fixtures/extend_type/fieldAsExportedArrowFunctionPositionalArgs.ts.expected.md
index 1d6081b1..1144947c 100644
--- a/src/tests/fixtures/extend_type/fieldAsExportedArrowFunctionPositionalArgs.ts.expected.md
+++ b/src/tests/fixtures/extend_type/fieldAsExportedArrowFunctionPositionalArgs.ts.expected.md
@@ -28,7 +28,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./fieldAsExportedArrowFunctionPositionalArgs";
+import { greeting as someTypeGreetingResolver } from "./fieldAsExportedArrowFunctionPositionalArgs.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/fieldAsExportedAsyncArrowFunction.ts.expected.md b/src/tests/fixtures/extend_type/fieldAsExportedAsyncArrowFunction.ts.expected.md
index 291d593d..f8bcb405 100644
--- a/src/tests/fixtures/extend_type/fieldAsExportedAsyncArrowFunction.ts.expected.md
+++ b/src/tests/fixtures/extend_type/fieldAsExportedAsyncArrowFunction.ts.expected.md
@@ -28,7 +28,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./fieldAsExportedAsyncArrowFunction";
+import { greeting as someTypeGreetingResolver } from "./fieldAsExportedAsyncArrowFunction.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/extend_type/functionFieldOnTypeDefinedWithInterface.ts.expected.md b/src/tests/fixtures/extend_type/functionFieldOnTypeDefinedWithInterface.ts.expected.md
index be9030a7..c50101d8 100644
--- a/src/tests/fixtures/extend_type/functionFieldOnTypeDefinedWithInterface.ts.expected.md
+++ b/src/tests/fixtures/extend_type/functionFieldOnTypeDefinedWithInterface.ts.expected.md
@@ -28,7 +28,7 @@ type Cat {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { catSound as catCatSoundResolver } from "./functionFieldOnTypeDefinedWithInterface";
+import { catSound as catCatSoundResolver } from "./functionFieldOnTypeDefinedWithInterface.js";
 export function getSchema(): GraphQLSchema {
     const CatType: GraphQLObjectType = new GraphQLObjectType({
         name: "Cat",
diff --git a/src/tests/fixtures/extend_type/optionalModelType.ts.expected.md b/src/tests/fixtures/extend_type/optionalModelType.ts.expected.md
index 8c81b5ac..25e90acd 100644
--- a/src/tests/fixtures/extend_type/optionalModelType.ts.expected.md
+++ b/src/tests/fixtures/extend_type/optionalModelType.ts.expected.md
@@ -35,7 +35,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./optionalModelType";
+import { greeting as someTypeGreetingResolver } from "./optionalModelType.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethod.ts.expected.md b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethod.ts.expected.md
index 5ce926c4..86bee804 100644
--- a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethod.ts.expected.md
+++ b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethod.ts.expected.md
@@ -36,7 +36,7 @@ type User {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { User as queryGetUserResolver } from "./FieldAsStaticClassMethod";
+import { User as queryGetUserResolver } from "./FieldAsStaticClassMethod.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnNonGqlClass.ts.expected.md b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnNonGqlClass.ts.expected.md
index e07a8a8b..be69d860 100644
--- a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnNonGqlClass.ts.expected.md
+++ b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnNonGqlClass.ts.expected.md
@@ -28,7 +28,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { SomeClass as queryGreetResolver } from "./FieldAsStaticClassMethodOnNonGqlClass";
+import { SomeClass as queryGreetResolver } from "./FieldAsStaticClassMethodOnNonGqlClass.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnUnnamedNonGqlClass.ts.expected.md b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnUnnamedNonGqlClass.ts.expected.md
index 1200e14b..bde089e0 100644
--- a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnUnnamedNonGqlClass.ts.expected.md
+++ b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodOnUnnamedNonGqlClass.ts.expected.md
@@ -27,7 +27,7 @@ type Query {
 ### TypeScript
 
 ```ts
-import queryGreetResolver from "./FieldAsStaticClassMethodOnUnnamedNonGqlClass";
+import queryGreetResolver from "./FieldAsStaticClassMethodOnUnnamedNonGqlClass.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
diff --git a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodWithClassAsDefaultExport.ts.expected.md b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodWithClassAsDefaultExport.ts.expected.md
index 6f72c5d6..52579e12 100644
--- a/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodWithClassAsDefaultExport.ts.expected.md
+++ b/src/tests/fixtures/field_definitions/FieldAsStaticClassMethodWithClassAsDefaultExport.ts.expected.md
@@ -35,7 +35,7 @@ type User {
 ### TypeScript
 
 ```ts
-import queryGetUserResolver from "./FieldAsStaticClassMethodWithClassAsDefaultExport";
+import queryGetUserResolver from "./FieldAsStaticClassMethodWithClassAsDefaultExport.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
diff --git a/src/tests/fixtures/field_definitions/MultipleFieldsAsStaticClassMethods.ts.expected.md b/src/tests/fixtures/field_definitions/MultipleFieldsAsStaticClassMethods.ts.expected.md
index c894dfdc..b35e1bb8 100644
--- a/src/tests/fixtures/field_definitions/MultipleFieldsAsStaticClassMethods.ts.expected.md
+++ b/src/tests/fixtures/field_definitions/MultipleFieldsAsStaticClassMethods.ts.expected.md
@@ -42,7 +42,7 @@ type User {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLList, GraphQLNonNull } from "graphql";
-import { User as queryGetUserResolver, User as queryGetUsersResolver } from "./MultipleFieldsAsStaticClassMethods";
+import { User as queryGetUserResolver, User as queryGetUsersResolver } from "./MultipleFieldsAsStaticClassMethods.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/fixtures/field_values/CustomScalar.ts.expected.md b/src/tests/fixtures/field_values/CustomScalar.ts.expected.md
index 002b26db..85c8a265 100644
--- a/src/tests/fixtures/field_values/CustomScalar.ts.expected.md
+++ b/src/tests/fixtures/field_values/CustomScalar.ts.expected.md
@@ -31,7 +31,7 @@ type SomeType {
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyString as MyStringInternal } from "./CustomScalar";
+import type { MyString as MyStringInternal } from "./CustomScalar.js";
 import { GraphQLSchema, GraphQLScalarType, GraphQLObjectType } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/generics/defineFieldOnGeneric.ts.expected.md b/src/tests/fixtures/generics/defineFieldOnGeneric.ts.expected.md
index 652d0451..f61f0b88 100644
--- a/src/tests/fixtures/generics/defineFieldOnGeneric.ts.expected.md
+++ b/src/tests/fixtures/generics/defineFieldOnGeneric.ts.expected.md
@@ -46,7 +46,7 @@ type PageEdge {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { title as pageEdgeTitleResolver } from "./defineFieldOnGeneric";
+import { title as pageEdgeTitleResolver } from "./defineFieldOnGeneric.js";
 export function getSchema(): GraphQLSchema {
     const PageType: GraphQLObjectType = new GraphQLObjectType({
         name: "Page",
diff --git a/src/tests/fixtures/generics/genericOverArg.ts.expected.md b/src/tests/fixtures/generics/genericOverArg.ts.expected.md
index a3f2c044..d8883311 100644
--- a/src/tests/fixtures/generics/genericOverArg.ts.expected.md
+++ b/src/tests/fixtures/generics/genericOverArg.ts.expected.md
@@ -47,7 +47,7 @@ type SomeInputSomeClass {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLInputObjectType, GraphQLNonNull } from "graphql";
-import { someField as querySomeFieldResolver } from "./genericOverArg";
+import { someField as querySomeFieldResolver } from "./genericOverArg.js";
 export function getSchema(): GraphQLSchema {
     const SomeInputType: GraphQLInputObjectType = new GraphQLInputObjectType({
         name: "SomeInput",
diff --git a/src/tests/fixtures/generics/genericTypeUsingClass.ts.expected.md b/src/tests/fixtures/generics/genericTypeUsingClass.ts.expected.md
index 56f30bcb..b68ac2d6 100644
--- a/src/tests/fixtures/generics/genericTypeUsingClass.ts.expected.md
+++ b/src/tests/fixtures/generics/genericTypeUsingClass.ts.expected.md
@@ -49,7 +49,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { createEdge as queryCreateEdgeResolver } from "./genericTypeUsingClass";
+import { createEdge as queryCreateEdgeResolver } from "./genericTypeUsingClass.js";
 export function getSchema(): GraphQLSchema {
     const PageType: GraphQLObjectType = new GraphQLObjectType({
         name: "Page",
diff --git a/src/tests/fixtures/generics/genericTypeUsingInterface.ts.expected.md b/src/tests/fixtures/generics/genericTypeUsingInterface.ts.expected.md
index 024b6cf6..98b51051 100644
--- a/src/tests/fixtures/generics/genericTypeUsingInterface.ts.expected.md
+++ b/src/tests/fixtures/generics/genericTypeUsingInterface.ts.expected.md
@@ -49,7 +49,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { createEdge as queryCreateEdgeResolver } from "./genericTypeUsingInterface";
+import { createEdge as queryCreateEdgeResolver } from "./genericTypeUsingInterface.js";
 export function getSchema(): GraphQLSchema {
     const PageType: GraphQLObjectType = new GraphQLObjectType({
         name: "Page",
diff --git a/src/tests/fixtures/generics/multiparamGeneric.ts.expected.md b/src/tests/fixtures/generics/multiparamGeneric.ts.expected.md
index 89bf652a..696b4732 100644
--- a/src/tests/fixtures/generics/multiparamGeneric.ts.expected.md
+++ b/src/tests/fixtures/generics/multiparamGeneric.ts.expected.md
@@ -53,7 +53,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLUnionType, GraphQLString } from "graphql";
-import { pageResult as queryPageResultResolver } from "./multiparamGeneric";
+import { pageResult as queryPageResultResolver } from "./multiparamGeneric.js";
 export function getSchema(): GraphQLSchema {
     const ErrType: GraphQLObjectType = new GraphQLObjectType({
         name: "Err",
diff --git a/src/tests/fixtures/generics/names/skippedTypeParam.ts.expected.md b/src/tests/fixtures/generics/names/skippedTypeParam.ts.expected.md
index 25f42e89..66462e9e 100644
--- a/src/tests/fixtures/generics/names/skippedTypeParam.ts.expected.md
+++ b/src/tests/fixtures/generics/names/skippedTypeParam.ts.expected.md
@@ -57,7 +57,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { connection as queryConnectionResolver } from "./skippedTypeParam";
+import { connection as queryConnectionResolver } from "./skippedTypeParam.js";
 export function getSchema(): GraphQLSchema {
     const BType: GraphQLObjectType = new GraphQLObjectType({
         name: "B",
diff --git a/src/tests/fixtures/generics/names/skippedTypeParamPassesLiteral.ts.expected.md b/src/tests/fixtures/generics/names/skippedTypeParamPassesLiteral.ts.expected.md
index b1966091..6509e0cb 100644
--- a/src/tests/fixtures/generics/names/skippedTypeParamPassesLiteral.ts.expected.md
+++ b/src/tests/fixtures/generics/names/skippedTypeParamPassesLiteral.ts.expected.md
@@ -62,7 +62,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { connection as queryConnectionResolver } from "./skippedTypeParamPassesLiteral";
+import { connection as queryConnectionResolver } from "./skippedTypeParamPassesLiteral.js";
 export function getSchema(): GraphQLSchema {
     const BType: GraphQLObjectType = new GraphQLObjectType({
         name: "B",
diff --git a/src/tests/fixtures/generics/scalarWithGeneric.ts.expected.md b/src/tests/fixtures/generics/scalarWithGeneric.ts.expected.md
index 92482baf..b2c8d1d3 100644
--- a/src/tests/fixtures/generics/scalarWithGeneric.ts.expected.md
+++ b/src/tests/fixtures/generics/scalarWithGeneric.ts.expected.md
@@ -20,7 +20,7 @@ scalar MyScalar
 
 ```ts
 import type { GqlScalar } from "grats";
-import type { MyScalar as MyScalarInternal } from "./scalarWithGeneric";
+import type { MyScalar as MyScalarInternal } from "./scalarWithGeneric.js";
 import { GraphQLSchema, GraphQLScalarType } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/fixtures/locate/enumValue.invalid.ts b/src/tests/fixtures/locate/enumValue.invalid.ts
new file mode 100644
index 00000000..53bd1f60
--- /dev/null
+++ b/src/tests/fixtures/locate/enumValue.invalid.ts
@@ -0,0 +1,6 @@
+// Locate: Greeting.HELLO
+/** @gqlEnum */
+export enum Greeting {
+  HELLO = "HELLO",
+  GOODBYE = "GOODBYE",
+}
diff --git a/src/tests/fixtures/locate/enumValue.invalid.ts.expected.md b/src/tests/fixtures/locate/enumValue.invalid.ts.expected.md
new file mode 100644
index 00000000..ca3c72b5
--- /dev/null
+++ b/src/tests/fixtures/locate/enumValue.invalid.ts.expected.md
@@ -0,0 +1,23 @@
+# locate/enumValue.invalid.ts
+
+## Input
+
+```ts title="locate/enumValue.invalid.ts"
+// Locate: Greeting.HELLO
+/** @gqlEnum */
+export enum Greeting {
+  HELLO = "HELLO",
+  GOODBYE = "GOODBYE",
+}
+```
+
+## Output
+
+### Error Report
+
+```text
+src/tests/fixtures/locate/enumValue.invalid.ts:4:11 - error: Located here
+
+4   HELLO = "HELLO",
+            ~~~~~~~
+```
\ No newline at end of file
diff --git a/src/tests/fixtures/locate/fieldArgument.invalid.ts b/src/tests/fixtures/locate/fieldArgument.invalid.ts
new file mode 100644
index 00000000..7acadf58
--- /dev/null
+++ b/src/tests/fixtures/locate/fieldArgument.invalid.ts
@@ -0,0 +1,8 @@
+// Locate: Query.greeting(salutation:)
+/** @gqlType */
+type Query = unknown;
+
+/** @gqlQueryField */
+export function greeting(salutation: string): string {
+  return `${salutation}, world!`;
+}
diff --git a/src/tests/fixtures/locate/fieldArgument.invalid.ts.expected.md b/src/tests/fixtures/locate/fieldArgument.invalid.ts.expected.md
new file mode 100644
index 00000000..45fbc7ba
--- /dev/null
+++ b/src/tests/fixtures/locate/fieldArgument.invalid.ts.expected.md
@@ -0,0 +1,25 @@
+# locate/fieldArgument.invalid.ts
+
+## Input
+
+```ts title="locate/fieldArgument.invalid.ts"
+// Locate: Query.greeting(salutation:)
+/** @gqlType */
+type Query = unknown;
+
+/** @gqlQueryField */
+export function greeting(salutation: string): string {
+  return `${salutation}, world!`;
+}
+```
+
+## Output
+
+### Error Report
+
+```text
+src/tests/fixtures/locate/fieldArgument.invalid.ts:6:26 - error: Located here
+
+6 export function greeting(salutation: string): string {
+                           ~~~~~~~~~~
+```
\ No newline at end of file
diff --git a/src/tests/fixtures/locate/fieldOnScalar.invalid.ts.expected.md b/src/tests/fixtures/locate/fieldOnScalar.invalid.ts.expected.md
index b142adad..f7164924 100644
--- a/src/tests/fixtures/locate/fieldOnScalar.invalid.ts.expected.md
+++ b/src/tests/fixtures/locate/fieldOnScalar.invalid.ts.expected.md
@@ -13,5 +13,5 @@ export type Date = string;
 ### Error Locating Type
 
 ```text
-Cannot locate field `name` on type `Date`. Only object types, interfaces, and input objects have fields.
+Invalid schema coordinate: `Date.name`. Expected "Date" to be an Enum, Input Object, Object or Interface type.
 ```
\ No newline at end of file
diff --git a/src/tests/fixtures/locate/malformedEntitySyntax.invalid.ts.expected.md b/src/tests/fixtures/locate/malformedEntitySyntax.invalid.ts.expected.md
index e03b62f8..f62e732b 100644
--- a/src/tests/fixtures/locate/malformedEntitySyntax.invalid.ts.expected.md
+++ b/src/tests/fixtures/locate/malformedEntitySyntax.invalid.ts.expected.md
@@ -16,5 +16,5 @@ type User = {
 ### Error Locating Type
 
 ```text
-Invalid entity name: `User->name`. Expected `ParentType` or `ParentType.fieldName`.
+Invalid schema coordinate: `User->name`. Syntax Error: Invalid character: "-".
 ```
\ No newline at end of file
diff --git a/src/tests/fixtures/locate/notFoundField.invalid.ts.expected.md b/src/tests/fixtures/locate/notFoundField.invalid.ts.expected.md
index f0f00d41..1a4dbf06 100644
--- a/src/tests/fixtures/locate/notFoundField.invalid.ts.expected.md
+++ b/src/tests/fixtures/locate/notFoundField.invalid.ts.expected.md
@@ -16,5 +16,5 @@ type User = {
 ### Error Locating Type
 
 ```text
-Cannot locate field `not_a_field` on type `User`.
+Could not resolve schema coordinate: `User.not_a_field`.
 ```
\ No newline at end of file
diff --git a/src/tests/fixtures/locate/notFoundType.invalid.ts.expected.md b/src/tests/fixtures/locate/notFoundType.invalid.ts.expected.md
index 540f8583..1bf7d120 100644
--- a/src/tests/fixtures/locate/notFoundType.invalid.ts.expected.md
+++ b/src/tests/fixtures/locate/notFoundType.invalid.ts.expected.md
@@ -16,5 +16,5 @@ type User = {
 ### Error Locating Type
 
 ```text
-Cannot locate type `WhoopsNotARealType`.
+Could not resolve schema coordinate: `WhoopsNotARealType`.
 ```
\ No newline at end of file
diff --git a/src/tests/fixtures/resolver_context/FunctionWithContextValue.ts.expected.md b/src/tests/fixtures/resolver_context/FunctionWithContextValue.ts.expected.md
index d93427ef..32638b53 100644
--- a/src/tests/fixtures/resolver_context/FunctionWithContextValue.ts.expected.md
+++ b/src/tests/fixtures/resolver_context/FunctionWithContextValue.ts.expected.md
@@ -31,7 +31,7 @@ type User {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as userGreetingResolver } from "./FunctionWithContextValue";
+import { greeting as userGreetingResolver } from "./FunctionWithContextValue.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/fixtures/resolver_info/FunctionWithInfoValue.ts.expected.md b/src/tests/fixtures/resolver_info/FunctionWithInfoValue.ts.expected.md
index 5a7a21c9..ce882b89 100644
--- a/src/tests/fixtures/resolver_info/FunctionWithInfoValue.ts.expected.md
+++ b/src/tests/fixtures/resolver_info/FunctionWithInfoValue.ts.expected.md
@@ -28,7 +28,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greetz as queryGreetzResolver } from "./FunctionWithInfoValue";
+import { greetz as queryGreetzResolver } from "./FunctionWithInfoValue.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/resolver_info/StaticMethodWithInfoValue.ts.expected.md b/src/tests/fixtures/resolver_info/StaticMethodWithInfoValue.ts.expected.md
index 9b4504fc..ea24ccbe 100644
--- a/src/tests/fixtures/resolver_info/StaticMethodWithInfoValue.ts.expected.md
+++ b/src/tests/fixtures/resolver_info/StaticMethodWithInfoValue.ts.expected.md
@@ -38,7 +38,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { SomeType as queryGreetingResolver } from "./StaticMethodWithInfoValue";
+import { SomeType as queryGreetingResolver } from "./StaticMethodWithInfoValue.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/subscriptions/SubscriptionFunctionFieldWithAsyncIterable.ts.expected.md b/src/tests/fixtures/subscriptions/SubscriptionFunctionFieldWithAsyncIterable.ts.expected.md
index 87ada08b..b822845d 100644
--- a/src/tests/fixtures/subscriptions/SubscriptionFunctionFieldWithAsyncIterable.ts.expected.md
+++ b/src/tests/fixtures/subscriptions/SubscriptionFunctionFieldWithAsyncIterable.ts.expected.md
@@ -55,7 +55,7 @@ type Subscription {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLString } from "graphql";
-import { greetings as subscriptionGreetingsResolver, greetingsMaybe as subscriptionGreetingsMaybeResolver, maybeGreetings as subscriptionMaybeGreetingsResolver, maybeGreetingsMaybe as subscriptionMaybeGreetingsMaybeResolver } from "./SubscriptionFunctionFieldWithAsyncIterable";
+import { greetings as subscriptionGreetingsResolver, greetingsMaybe as subscriptionGreetingsMaybeResolver, maybeGreetings as subscriptionMaybeGreetingsResolver, maybeGreetingsMaybe as subscriptionMaybeGreetingsMaybeResolver } from "./SubscriptionFunctionFieldWithAsyncIterable.js";
 export function getSchema(): GraphQLSchema {
     const SubscriptionType: GraphQLObjectType = new GraphQLObjectType({
         name: "Subscription",
diff --git a/src/tests/fixtures/todo/userExample.ts.expected.md b/src/tests/fixtures/todo/userExample.ts.expected.md
index c221f8e3..77ce3aa5 100644
--- a/src/tests/fixtures/todo/userExample.ts.expected.md
+++ b/src/tests/fixtures/todo/userExample.ts.expected.md
@@ -45,7 +45,7 @@ type User {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { fullName as userFullNameResolver, me as someTypeMeResolver } from "./userExample";
+import { fullName as userFullNameResolver, me as someTypeMeResolver } from "./userExample.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/fixtures/top_level_fields/queryField.ts.expected.md b/src/tests/fixtures/top_level_fields/queryField.ts.expected.md
index 6d836fad..92a9a2d3 100644
--- a/src/tests/fixtures/top_level_fields/queryField.ts.expected.md
+++ b/src/tests/fixtures/top_level_fields/queryField.ts.expected.md
@@ -23,7 +23,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver } from "./queryField";
+import { greeting as queryGreetingResolver } from "./queryField.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/top_level_fields/queryFieldOnStaticMethod.ts.expected.md b/src/tests/fixtures/top_level_fields/queryFieldOnStaticMethod.ts.expected.md
index 60c308a4..683d678f 100644
--- a/src/tests/fixtures/top_level_fields/queryFieldOnStaticMethod.ts.expected.md
+++ b/src/tests/fixtures/top_level_fields/queryFieldOnStaticMethod.ts.expected.md
@@ -25,7 +25,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { SomeNonGraphQLClass as queryGreetingResolver } from "./queryFieldOnStaticMethod";
+import { SomeNonGraphQLClass as queryGreetingResolver } from "./queryFieldOnStaticMethod.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/top_level_fields/queryFieldRenamed.ts.expected.md b/src/tests/fixtures/top_level_fields/queryFieldRenamed.ts.expected.md
index be99e939..ff0d140c 100644
--- a/src/tests/fixtures/top_level_fields/queryFieldRenamed.ts.expected.md
+++ b/src/tests/fixtures/top_level_fields/queryFieldRenamed.ts.expected.md
@@ -23,7 +23,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greetz as queryGreetingResolver } from "./queryFieldRenamed";
+import { greetz as queryGreetingResolver } from "./queryFieldRenamed.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/top_level_fields/queryFieldWithExplicitlyDefinedQuery.ts.expected.md b/src/tests/fixtures/top_level_fields/queryFieldWithExplicitlyDefinedQuery.ts.expected.md
index 66f8d8b6..338bb895 100644
--- a/src/tests/fixtures/top_level_fields/queryFieldWithExplicitlyDefinedQuery.ts.expected.md
+++ b/src/tests/fixtures/top_level_fields/queryFieldWithExplicitlyDefinedQuery.ts.expected.md
@@ -32,7 +32,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver } from "./queryFieldWithExplicitlyDefinedQuery";
+import { greeting as queryGreetingResolver } from "./queryFieldWithExplicitlyDefinedQuery.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/top_level_fields/rootFields.ts.expected.md b/src/tests/fixtures/top_level_fields/rootFields.ts.expected.md
index ce806288..6142bec8 100644
--- a/src/tests/fixtures/top_level_fields/rootFields.ts.expected.md
+++ b/src/tests/fixtures/top_level_fields/rootFields.ts.expected.md
@@ -45,7 +45,7 @@ type Subscription {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLInt, GraphQLNonNull } from "graphql";
-import { greeting as queryGreetingResolver, deleteSomething as mutationDeleteSomethingResolver, range as subscriptionRangeResolver } from "./rootFields";
+import { greeting as queryGreetingResolver, deleteSomething as mutationDeleteSomethingResolver, range as subscriptionRangeResolver } from "./rootFields.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/fixtures/type_definitions_from_alias/AliasOfUnknownDefinesType.ts.expected.md b/src/tests/fixtures/type_definitions_from_alias/AliasOfUnknownDefinesType.ts.expected.md
index c8d848a3..41ecab7a 100644
--- a/src/tests/fixtures/type_definitions_from_alias/AliasOfUnknownDefinesType.ts.expected.md
+++ b/src/tests/fixtures/type_definitions_from_alias/AliasOfUnknownDefinesType.ts.expected.md
@@ -26,7 +26,7 @@ type SomeType {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as someTypeGreetingResolver } from "./AliasOfUnknownDefinesType";
+import { greeting as someTypeGreetingResolver } from "./AliasOfUnknownDefinesType.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/fixtures/type_definitions_from_alias/QueryAsAliasOfUnknown.ts.expected.md b/src/tests/fixtures/type_definitions_from_alias/QueryAsAliasOfUnknown.ts.expected.md
index eb275203..cb13bd7a 100644
--- a/src/tests/fixtures/type_definitions_from_alias/QueryAsAliasOfUnknown.ts.expected.md
+++ b/src/tests/fixtures/type_definitions_from_alias/QueryAsAliasOfUnknown.ts.expected.md
@@ -26,7 +26,7 @@ type Query {
 
 ```ts
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { foo as queryFooResolver } from "./QueryAsAliasOfUnknown";
+import { foo as queryFooResolver } from "./QueryAsAliasOfUnknown.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/aliasedMethod/schema.ts b/src/tests/integrationFixtures/aliasedMethod/schema.ts
index 3ce67d42..fd5179d3 100644
--- a/src/tests/integrationFixtures/aliasedMethod/schema.ts
+++ b/src/tests/integrationFixtures/aliasedMethod/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { someType as querySomeTypeResolver } from "./index";
+import { someType as querySomeTypeResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const SomeTypeType: GraphQLObjectType = new GraphQLObjectType({
         name: "SomeType",
diff --git a/src/tests/integrationFixtures/complexDefaultInput/schema.ts b/src/tests/integrationFixtures/complexDefaultInput/schema.ts
index 75984419..14bd0723 100644
--- a/src/tests/integrationFixtures/complexDefaultInput/schema.ts
+++ b/src/tests/integrationFixtures/complexDefaultInput/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLInputObjectType } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const SomeObjType: GraphQLInputObjectType = new GraphQLInputObjectType({
         name: "SomeObj",
diff --git a/src/tests/integrationFixtures/complexPlurals/schema.ts b/src/tests/integrationFixtures/complexPlurals/schema.ts
index 427df5e5..95051f06 100644
--- a/src/tests/integrationFixtures/complexPlurals/schema.ts
+++ b/src/tests/integrationFixtures/complexPlurals/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLList, GraphQLNonNull, GraphQLString } from "graphql";
-import { arrayOfArrayOfPromises as queryArrayOfArrayOfPromisesResolver, arrayOfPromises as queryArrayOfPromisesResolver, asyncIterableOfArrayOfPromises as queryAsyncIterableOfArrayOfPromisesResolver } from "./index";
+import { arrayOfArrayOfPromises as queryArrayOfArrayOfPromisesResolver, arrayOfPromises as queryArrayOfPromisesResolver, asyncIterableOfArrayOfPromises as queryAsyncIterableOfArrayOfPromisesResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/connectionExample/index.ts b/src/tests/integrationFixtures/connectionExample/index.ts
index 71c59e13..1f1db4c0 100644
--- a/src/tests/integrationFixtures/connectionExample/index.ts
+++ b/src/tests/integrationFixtures/connectionExample/index.ts
@@ -1,4 +1,4 @@
-import { Int } from "../../../Types";
+import { Int } from "../../../Types.js";
 
 /** @gqlQueryField */
 export function firstHundredIntegers(args: {
diff --git a/src/tests/integrationFixtures/connectionExample/index.ts.expected.md b/src/tests/integrationFixtures/connectionExample/index.ts.expected.md
index b7a5239c..0da561eb 100644
--- a/src/tests/integrationFixtures/connectionExample/index.ts.expected.md
+++ b/src/tests/integrationFixtures/connectionExample/index.ts.expected.md
@@ -3,7 +3,7 @@
 ## Input
 
 ```ts title="connectionExample/index.ts"
-import { Int } from "../../../Types";
+import { Int } from "../../../Types.js";
 
 /** @gqlQueryField */
 export function firstHundredIntegers(args: {
diff --git a/src/tests/integrationFixtures/connectionExample/schema.ts b/src/tests/integrationFixtures/connectionExample/schema.ts
index 826845a5..5d044b22 100644
--- a/src/tests/integrationFixtures/connectionExample/schema.ts
+++ b/src/tests/integrationFixtures/connectionExample/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLList, GraphQLNonNull, GraphQLString, GraphQLInt, GraphQLBoolean } from "graphql";
-import { firstHundredIntegers as queryFirstHundredIntegersResolver } from "./index";
+import { firstHundredIntegers as queryFirstHundredIntegersResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const FirstHundredIntegersEdgeType: GraphQLObjectType = new GraphQLObjectType({
         name: "FirstHundredIntegersEdge",
diff --git a/src/tests/integrationFixtures/customScalarSerialization/index.ts b/src/tests/integrationFixtures/customScalarSerialization/index.ts
index 0af029cd..3c592a51 100644
--- a/src/tests/integrationFixtures/customScalarSerialization/index.ts
+++ b/src/tests/integrationFixtures/customScalarSerialization/index.ts
@@ -1,4 +1,4 @@
-import type { SchemaConfig } from "./schema";
+import type { SchemaConfig } from "./schema.js";
 
 /** @gqlScalar */
 export type CustomScalar = number;
diff --git a/src/tests/integrationFixtures/customScalarSerialization/index.ts.expected.md b/src/tests/integrationFixtures/customScalarSerialization/index.ts.expected.md
index b46fd56b..e50c155e 100644
--- a/src/tests/integrationFixtures/customScalarSerialization/index.ts.expected.md
+++ b/src/tests/integrationFixtures/customScalarSerialization/index.ts.expected.md
@@ -3,7 +3,7 @@
 ## Input
 
 ```ts title="customScalarSerialization/index.ts"
-import type { SchemaConfig } from "./schema";
+import type { SchemaConfig } from "./schema.js";
 
 /** @gqlScalar */
 export type CustomScalar = number;
diff --git a/src/tests/integrationFixtures/customScalarSerialization/schema.ts b/src/tests/integrationFixtures/customScalarSerialization/schema.ts
index 2b07240a..9a5a0096 100644
--- a/src/tests/integrationFixtures/customScalarSerialization/schema.ts
+++ b/src/tests/integrationFixtures/customScalarSerialization/schema.ts
@@ -1,5 +1,5 @@
 import type { GqlScalar } from "grats";
-import { type CustomScalar as CustomScalarInternal, hello as queryHelloResolver } from "./index";
+import { type CustomScalar as CustomScalarInternal, hello as queryHelloResolver } from "./index.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLScalarType, GraphQLNonNull } from "graphql";
 export type SchemaConfig = {
     scalars: {
diff --git a/src/tests/integrationFixtures/deprecated/schema.ts b/src/tests/integrationFixtures/deprecated/schema.ts
index 32ebbfc8..950a052f 100644
--- a/src/tests/integrationFixtures/deprecated/schema.ts
+++ b/src/tests/integrationFixtures/deprecated/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { goodBye as queryGoodByeResolver, hello as queryHelloResolver } from "./index";
+import { goodBye as queryGoodByeResolver, hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/derivedContext/schema.ts b/src/tests/integrationFixtures/derivedContext/schema.ts
index e569ba06..5c22045e 100644
--- a/src/tests/integrationFixtures/derivedContext/schema.ts
+++ b/src/tests/integrationFixtures/derivedContext/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { hello as queryHelloResolver, derived } from "./index";
+import { hello as queryHelloResolver, derived } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/derivedContextAsync/schema.ts b/src/tests/integrationFixtures/derivedContextAsync/schema.ts
index 44e8071b..160bd129 100644
--- a/src/tests/integrationFixtures/derivedContextAsync/schema.ts
+++ b/src/tests/integrationFixtures/derivedContextAsync/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { derived, User as queryCurrentUserResolver, hello as queryHelloResolver, user as queryUserResolver } from "./index";
+import { derived, User as queryCurrentUserResolver, hello as queryHelloResolver, user as queryUserResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/integrationFixtures/enumDefault/schema.ts b/src/tests/integrationFixtures/enumDefault/schema.ts
index 1e438ef0..c7d6a739 100644
--- a/src/tests/integrationFixtures/enumDefault/schema.ts
+++ b/src/tests/integrationFixtures/enumDefault/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/integrationFixtures/enumExport/enums.ts b/src/tests/integrationFixtures/enumExport/enums.ts
index a1ba037b..2cfb6a11 100644
--- a/src/tests/integrationFixtures/enumExport/enums.ts
+++ b/src/tests/integrationFixtures/enumExport/enums.ts
@@ -3,7 +3,7 @@
  * Do not manually edit. Regenerate by running `npx grats`.
  */
 
-import { Color as ColorEnum, Priority as PriorityEnum } from "./index";
+import { Color as ColorEnum, Priority as PriorityEnum } from "./index.js";
 export const enums = {
     Color: ColorEnum,
     Priority: PriorityEnum
diff --git a/src/tests/integrationFixtures/enumExport/schema.ts b/src/tests/integrationFixtures/enumExport/schema.ts
index 04ebf080..702da93f 100644
--- a/src/tests/integrationFixtures/enumExport/schema.ts
+++ b/src/tests/integrationFixtures/enumExport/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLEnumType } from "graphql";
-import { colorName as queryColorNameResolver, currentPriority as queryCurrentPriorityResolver, favoriteColor as queryFavoriteColorResolver } from "./index";
+import { colorName as queryColorNameResolver, currentPriority as queryCurrentPriorityResolver, favoriteColor as queryFavoriteColorResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const ColorType: GraphQLEnumType = new GraphQLEnumType({
         name: "Color",
diff --git a/src/tests/integrationFixtures/explicitNullPassedToArgWithDefault/schema.ts b/src/tests/integrationFixtures/explicitNullPassedToArgWithDefault/schema.ts
index 4c389c46..7a631589 100644
--- a/src/tests/integrationFixtures/explicitNullPassedToArgWithDefault/schema.ts
+++ b/src/tests/integrationFixtures/explicitNullPassedToArgWithDefault/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/functionField/schema.ts b/src/tests/integrationFixtures/functionField/schema.ts
index 8f5023f1..fbeeee1d 100644
--- a/src/tests/integrationFixtures/functionField/schema.ts
+++ b/src/tests/integrationFixtures/functionField/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/functionFieldRenamed/schema.ts b/src/tests/integrationFixtures/functionFieldRenamed/schema.ts
index bd020a71..76c9322a 100644
--- a/src/tests/integrationFixtures/functionFieldRenamed/schema.ts
+++ b/src/tests/integrationFixtures/functionFieldRenamed/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { notHello as queryHelloResolver } from "./index";
+import { notHello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/getAcessor/schema.ts b/src/tests/integrationFixtures/getAcessor/schema.ts
index 876c0d4b..1d879970 100644
--- a/src/tests/integrationFixtures/getAcessor/schema.ts
+++ b/src/tests/integrationFixtures/getAcessor/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { me as queryMeResolver } from "./index";
+import { me as queryMeResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/integrationFixtures/inputTypeOneOf/index.ts b/src/tests/integrationFixtures/inputTypeOneOf/index.ts
index c22f9570..ba4bf238 100644
--- a/src/tests/integrationFixtures/inputTypeOneOf/index.ts
+++ b/src/tests/integrationFixtures/inputTypeOneOf/index.ts
@@ -1,4 +1,4 @@
-import { ID } from "../../..";
+import { ID } from "../../../Types.js";
 
 /** @gqlInput */
 type UserPayload = {
diff --git a/src/tests/integrationFixtures/inputTypeOneOf/index.ts.expected.md b/src/tests/integrationFixtures/inputTypeOneOf/index.ts.expected.md
index acce951e..aa75b1d5 100644
--- a/src/tests/integrationFixtures/inputTypeOneOf/index.ts.expected.md
+++ b/src/tests/integrationFixtures/inputTypeOneOf/index.ts.expected.md
@@ -3,7 +3,7 @@
 ## Input
 
 ```ts title="inputTypeOneOf/index.ts"
-import { ID } from "../../..";
+import { ID } from "../../../Types.js";
 
 /** @gqlInput */
 type UserPayload = {
diff --git a/src/tests/integrationFixtures/inputTypeOneOf/schema.ts b/src/tests/integrationFixtures/inputTypeOneOf/schema.ts
index a1fbb818..c7139465 100644
--- a/src/tests/integrationFixtures/inputTypeOneOf/schema.ts
+++ b/src/tests/integrationFixtures/inputTypeOneOf/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLInputObjectType, GraphQLID } from "graphql";
-import { greet as queryGreetResolver } from "./index";
+import { greet as queryGreetResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const UserPayloadType: GraphQLInputObjectType = new GraphQLInputObjectType({
         name: "UserPayload",
diff --git a/src/tests/integrationFixtures/killsParentOnException/schema.ts b/src/tests/integrationFixtures/killsParentOnException/schema.ts
index 865fa985..2e8e0ef7 100644
--- a/src/tests/integrationFixtures/killsParentOnException/schema.ts
+++ b/src/tests/integrationFixtures/killsParentOnException/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLString } from "graphql";
-import { me as queryMeResolver } from "./index";
+import { me as queryMeResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/integrationFixtures/killsParentOnExceptionOnQuery/schema.ts b/src/tests/integrationFixtures/killsParentOnExceptionOnQuery/schema.ts
index 32856bb2..e7f11645 100644
--- a/src/tests/integrationFixtures/killsParentOnExceptionOnQuery/schema.ts
+++ b/src/tests/integrationFixtures/killsParentOnExceptionOnQuery/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLString } from "graphql";
-import { alwaysThrowsKillsParentOnException as queryAlwaysThrowsKillsParentOnExceptionResolver, hello as queryHelloResolver } from "./index";
+import { alwaysThrowsKillsParentOnException as queryAlwaysThrowsKillsParentOnExceptionResolver, hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/killsParentOnExceptionReturnsNull/schema.ts b/src/tests/integrationFixtures/killsParentOnExceptionReturnsNull/schema.ts
index 865fa985..2e8e0ef7 100644
--- a/src/tests/integrationFixtures/killsParentOnExceptionReturnsNull/schema.ts
+++ b/src/tests/integrationFixtures/killsParentOnExceptionReturnsNull/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLNonNull, GraphQLString } from "graphql";
-import { me as queryMeResolver } from "./index";
+import { me as queryMeResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/integrationFixtures/nonNullArgWithDefault/schema.ts b/src/tests/integrationFixtures/nonNullArgWithDefault/schema.ts
index 61558fa9..15fd4a35 100644
--- a/src/tests/integrationFixtures/nonNullArgWithDefault/schema.ts
+++ b/src/tests/integrationFixtures/nonNullArgWithDefault/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/nonNullEnumDefault/schema.ts b/src/tests/integrationFixtures/nonNullEnumDefault/schema.ts
index 81aef994..f3c3706c 100644
--- a/src/tests/integrationFixtures/nonNullEnumDefault/schema.ts
+++ b/src/tests/integrationFixtures/nonNullEnumDefault/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLEnumType } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const GreetingOptionsType: GraphQLEnumType = new GraphQLEnumType({
         name: "GreetingOptions",
diff --git a/src/tests/integrationFixtures/nonNullableListIncludesNull/schema.ts b/src/tests/integrationFixtures/nonNullableListIncludesNull/schema.ts
index b2f5570c..9f311f14 100644
--- a/src/tests/integrationFixtures/nonNullableListIncludesNull/schema.ts
+++ b/src/tests/integrationFixtures/nonNullableListIncludesNull/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLList, GraphQLNonNull, GraphQLString } from "graphql";
-import { someList as querySomeListResolver, someListOfLists as querySomeListOfListsResolver } from "./index";
+import { someList as querySomeListResolver, someListOfLists as querySomeListOfListsResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/numericID/index.ts b/src/tests/integrationFixtures/numericID/index.ts
index 11c29e11..7b216dd4 100644
--- a/src/tests/integrationFixtures/numericID/index.ts
+++ b/src/tests/integrationFixtures/numericID/index.ts
@@ -1,4 +1,4 @@
-import { ID } from "../../../Types";
+import { ID } from "../../../Types.js";
 
 /**
  * Validating that graphql-js will coerce a numeric ID to a string.
diff --git a/src/tests/integrationFixtures/numericID/index.ts.expected.md b/src/tests/integrationFixtures/numericID/index.ts.expected.md
index a4f11feb..ecd1efe2 100644
--- a/src/tests/integrationFixtures/numericID/index.ts.expected.md
+++ b/src/tests/integrationFixtures/numericID/index.ts.expected.md
@@ -3,7 +3,7 @@
 ## Input
 
 ```ts title="numericID/index.ts"
-import { ID } from "../../../Types";
+import { ID } from "../../../Types.js";
 
 /**
  * Validating that graphql-js will coerce a numeric ID to a string.
diff --git a/src/tests/integrationFixtures/numericID/schema.ts b/src/tests/integrationFixtures/numericID/schema.ts
index feef4b50..3675efd9 100644
--- a/src/tests/integrationFixtures/numericID/schema.ts
+++ b/src/tests/integrationFixtures/numericID/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull, GraphQLID } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/parameterPropertyRenamed/schema.ts b/src/tests/integrationFixtures/parameterPropertyRenamed/schema.ts
index d5eb003a..4f45014c 100644
--- a/src/tests/integrationFixtures/parameterPropertyRenamed/schema.ts
+++ b/src/tests/integrationFixtures/parameterPropertyRenamed/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { me as queryMeResolver } from "./index";
+import { me as queryMeResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const UserType: GraphQLObjectType = new GraphQLObjectType({
         name: "User",
diff --git a/src/tests/integrationFixtures/positionalNonNullArgWithDefault/schema.ts b/src/tests/integrationFixtures/positionalNonNullArgWithDefault/schema.ts
index 16ebb076..a6dd7fa4 100644
--- a/src/tests/integrationFixtures/positionalNonNullArgWithDefault/schema.ts
+++ b/src/tests/integrationFixtures/positionalNonNullArgWithDefault/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString, GraphQLNonNull } from "graphql";
-import { hello as queryHelloResolver } from "./index";
+import { hello as queryHelloResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/promiseOfPromise/schema.ts b/src/tests/integrationFixtures/promiseOfPromise/schema.ts
index 529efcde..aad551ef 100644
--- a/src/tests/integrationFixtures/promiseOfPromise/schema.ts
+++ b/src/tests/integrationFixtures/promiseOfPromise/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { promiseOfPromise as queryPromiseOfPromiseResolver, promiseOfPromisePromise as queryPromiseOfPromisePromiseResolver } from "./index";
+import { promiseOfPromise as queryPromiseOfPromiseResolver, promiseOfPromisePromise as queryPromiseOfPromisePromiseResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/resolveTypeViaClass/index.ts b/src/tests/integrationFixtures/resolveTypeViaClass/index.ts
index e5f7fc59..62325986 100644
--- a/src/tests/integrationFixtures/resolveTypeViaClass/index.ts
+++ b/src/tests/integrationFixtures/resolveTypeViaClass/index.ts
@@ -1,4 +1,4 @@
-import { ID } from "../../../Types";
+import { ID } from "../../../Types.js";
 
 /** @gqlInterface */
 interface GqlNode {
diff --git a/src/tests/integrationFixtures/resolveTypeViaClass/index.ts.expected.md b/src/tests/integrationFixtures/resolveTypeViaClass/index.ts.expected.md
index eec96fb9..040cb61f 100644
--- a/src/tests/integrationFixtures/resolveTypeViaClass/index.ts.expected.md
+++ b/src/tests/integrationFixtures/resolveTypeViaClass/index.ts.expected.md
@@ -3,7 +3,7 @@
 ## Input
 
 ```ts title="resolveTypeViaClass/index.ts"
-import { ID } from "../../../Types";
+import { ID } from "../../../Types.js";
 
 /** @gqlInterface */
 interface GqlNode {
diff --git a/src/tests/integrationFixtures/resolveTypeViaClass/schema.ts b/src/tests/integrationFixtures/resolveTypeViaClass/schema.ts
index 745b0fe0..0e486ce2 100644
--- a/src/tests/integrationFixtures/resolveTypeViaClass/schema.ts
+++ b/src/tests/integrationFixtures/resolveTypeViaClass/schema.ts
@@ -1,6 +1,6 @@
-import DefaultNodeClass from "./index";
+import DefaultNodeClass from "./index.js";
 import { GraphQLSchema, GraphQLObjectType, GraphQLInterfaceType, GraphQLID, GraphQLNonNull } from "graphql";
-import { Guest as GuestClass, ThisNameGetsIgnored as RenamedNodeClass, User as UserClass, node as queryNodeResolver } from "./index";
+import { Guest as GuestClass, ThisNameGetsIgnored as RenamedNodeClass, User as UserClass, node as queryNodeResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const GqlNodeType: GraphQLInterfaceType = new GraphQLInterfaceType({
         name: "GqlNode",
diff --git a/src/tests/integrationFixtures/resolverErrorElidedToNull/schema.ts b/src/tests/integrationFixtures/resolverErrorElidedToNull/schema.ts
index 3fb437da..3edc4e6e 100644
--- a/src/tests/integrationFixtures/resolverErrorElidedToNull/schema.ts
+++ b/src/tests/integrationFixtures/resolverErrorElidedToNull/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLObjectType, GraphQLString } from "graphql";
-import { alwaysThrows as queryAlwaysThrowsResolver } from "./index";
+import { alwaysThrows as queryAlwaysThrowsResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/skipInclude/schema.ts b/src/tests/integrationFixtures/skipInclude/schema.ts
index 220cec17..92da08c8 100644
--- a/src/tests/integrationFixtures/skipInclude/schema.ts
+++ b/src/tests/integrationFixtures/skipInclude/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, specifiedDirectives, GraphQLObjectType, GraphQLString } from "graphql";
-import { greeting as queryGreetingResolver } from "./index";
+import { greeting as queryGreetingResolver } from "./index.js";
 export function getSchema(): GraphQLSchema {
     const QueryType: GraphQLObjectType = new GraphQLObjectType({
         name: "Query",
diff --git a/src/tests/integrationFixtures/strictSemanticNullability/schema.ts b/src/tests/integrationFixtures/strictSemanticNullability/schema.ts
index b57d75f7..c5c2b028 100644
--- a/src/tests/integrationFixtures/strictSemanticNullability/schema.ts
+++ b/src/tests/integrationFixtures/strictSemanticNullability/schema.ts
@@ -1,5 +1,5 @@
 import { GraphQLSchema, GraphQLDirective, DirectiveLocation, GraphQLList, GraphQLInt, specifiedDirectives, GraphQLObjectType, GraphQLString, defaultFieldResolver, GraphQLInterfaceType } from "graphql";
-import { actuallyReturnsAsyncNull as queryActuallyReturnsAsyncNullResolver, actuallyReturnsNull as queryActuallyReturnsNullResolver, me as queryMeResolver, names as subscriptionNamesResolver } from "./index";
+import { actuallyReturnsAsyncNull as queryActuallyReturnsAsyncNullResolver, actuallyReturnsNull as queryActuallyReturnsNullResolver, me as queryMeResolver, names as subscriptionNamesResolver } from "./index.js";
 async function assertNonNull<T>(value: T | Promise<T>): Promise<T> {
     const awaited = await value;
     if (awaited == null)
diff --git a/src/tests/test.ts b/src/tests/test.ts
index 367f2a8c..c70fd475 100644
--- a/src/tests/test.ts
+++ b/src/tests/test.ts
@@ -1,9 +1,10 @@
 import * as path from "path";
-import TestRunner, { Transformer, TransformerResult } from "./TestRunner";
+import { fileURLToPath } from "url";
+import TestRunner, { Transformer, TransformerResult } from "./TestRunner.js";
 import {
   buildSchemaAndDocResult,
   buildSchemaAndDocResultWithHost,
-} from "../lib";
+} from "../lib.js";
 import * as ts from "typescript";
 import {
   buildASTSchema,
@@ -14,25 +15,25 @@ import {
   specifiedScalarTypes,
 } from "graphql";
 import { Command } from "commander";
-import { locate } from "../Locate";
-import { gqlErr, ReportableDiagnostics } from "../utils/DiagnosticError";
+import { locate } from "../Locate.js";
+import { gqlErr, ReportableDiagnostics } from "../utils/DiagnosticError.js";
 import { readFileSync, writeFileSync } from "fs";
-import { codegen } from "../codegen/schemaCodegen";
-import { printEnumsModule } from "../printSchema";
+import { codegen } from "../codegen/schemaCodegen.js";
+import { printEnumsModule } from "../printSchema.js";
 import { diff } from "jest-diff";
 import * as semver from "semver";
 import {
   GratsConfig,
   ParsedCommandLineGrats,
   validateGratsOptions,
-} from "../gratsConfig";
-import { SEMANTIC_NON_NULL_DIRECTIVE } from "../publicDirectives";
-import { applySDLHeader, applyTypeScriptHeader } from "../printSchema";
-import { extend } from "../utils/helpers";
-import { Result, ok, err } from "../utils/Result";
-import { applyFixes } from "../fixFixable";
-import { writeTypeScriptTypeToDisk } from "../../scripts/buildConfigTypes";
-import { Markdown } from "./Markdown";
+} from "../gratsConfig.js";
+import { SEMANTIC_NON_NULL_DIRECTIVE } from "../publicDirectives.js";
+import { applySDLHeader, applyTypeScriptHeader } from "../printSchema.js";
+import { extend } from "../utils/helpers.js";
+import { Result, ok, err } from "../utils/Result.js";
+import { applyFixes } from "../fixFixable.js";
+import { writeTypeScriptTypeToDisk } from "../../scripts/buildConfigTypes.js";
+import { Markdown } from "./Markdown.js";
 
 writeTypeScriptTypeToDisk();
 
@@ -76,6 +77,9 @@ program
     }
   });
 
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
 const gratsDir = path.join(__dirname, "../..");
 const fixturesDir = path.join(__dirname, "fixtures");
 const configFixturesDir = path.join(__dirname, "configParserFixtures");
diff --git a/src/transforms/addImplicitRootTypes.ts b/src/transforms/addImplicitRootTypes.ts
index ee1161c4..0c8d5162 100644
--- a/src/transforms/addImplicitRootTypes.ts
+++ b/src/transforms/addImplicitRootTypes.ts
@@ -5,9 +5,9 @@ import {
   NameNode,
   ObjectTypeDefinitionNode,
 } from "graphql";
-import { OPERATION_TYPES } from "../Extractor";
-import { nullThrows, TsIdentifier } from "../utils/helpers";
-import { visitDefinitions } from "../utils/visitor";
+import { OPERATION_TYPES } from "../Extractor.js";
+import { nullThrows, TsIdentifier } from "../utils/helpers.js";
+import { visitDefinitions } from "../utils/visitor.js";
 
 /**
  * Ensure any root types which have been extended with `@gqlQueryField` and
diff --git a/src/transforms/addInterfaceFields.ts b/src/transforms/addInterfaceFields.ts
index b2ecd37c..831f5d9b 100644
--- a/src/transforms/addInterfaceFields.ts
+++ b/src/transforms/addInterfaceFields.ts
@@ -1,17 +1,17 @@
-import * as E from "../Errors";
+import * as E from "../Errors.js";
 import * as ts from "typescript";
 import { DefinitionNode, Kind, ObjectTypeExtensionNode } from "graphql";
-import { TypeContext } from "../TypeContext";
+import { TypeContext } from "../TypeContext.js";
 import {
   DiagnosticResult,
   DiagnosticsResult,
   gqlErr,
   gqlRelated,
-} from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
-import { InterfaceMap, computeInterfaceMap } from "../InterfaceGraph";
-import { extend, nullThrows, uniqueId } from "../utils/helpers";
-import { FIELD_TAG } from "../Extractor";
+} from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
+import { InterfaceMap, computeInterfaceMap } from "../InterfaceGraph.js";
+import { extend, nullThrows, uniqueId } from "../utils/helpers.js";
+import { FIELD_TAG } from "../Extractor.js";
 
 /**
  * Grats allows you to define GraphQL fields on TypeScript interfaces using
diff --git a/src/transforms/applyDefaultNullability.ts b/src/transforms/applyDefaultNullability.ts
index d8faf227..815f549d 100644
--- a/src/transforms/applyDefaultNullability.ts
+++ b/src/transforms/applyDefaultNullability.ts
@@ -1,15 +1,15 @@
 import { DocumentNode, Kind, visit } from "graphql";
-import { DiagnosticsResult, gqlErr } from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
+import { DiagnosticsResult, gqlErr } from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
 import * as ts from "typescript";
-import * as E from "../Errors";
+import * as E from "../Errors.js";
 import {
   addSemanticNonNullDirective,
   makeSemanticNonNullDirective,
-} from "../publicDirectives";
-import { GraphQLConstructor } from "../GraphQLConstructor";
-import { GratsConfig } from "../gratsConfig";
-import { nullThrows } from "../utils/helpers";
+} from "../publicDirectives.js";
+import { GraphQLConstructor } from "../GraphQLConstructor.js";
+import { GratsConfig } from "../gratsConfig.js";
+import { nullThrows } from "../utils/helpers.js";
 
 /**
  * Grats has options to make all fields nullable by default to conform to
diff --git a/src/transforms/filterNonGqlInterfaces.ts b/src/transforms/filterNonGqlInterfaces.ts
index b0047674..1a63b4c4 100644
--- a/src/transforms/filterNonGqlInterfaces.ts
+++ b/src/transforms/filterNonGqlInterfaces.ts
@@ -1,5 +1,5 @@
 import { DefinitionNode, Kind, NamedTypeNode } from "graphql";
-import { TypeContext } from "../TypeContext";
+import { TypeContext } from "../TypeContext.js";
 
 type InterfaceHaver = {
   readonly interfaces?: ReadonlyArray<NamedTypeNode>;
diff --git a/src/transforms/makeResolverSignature.ts b/src/transforms/makeResolverSignature.ts
index 8a215e13..7ecd3f60 100644
--- a/src/transforms/makeResolverSignature.ts
+++ b/src/transforms/makeResolverSignature.ts
@@ -5,9 +5,9 @@ import {
   Metadata,
   FieldDefinition,
   ContextArgs,
-} from "../metadata";
-import { invariant, nullThrows } from "../utils/helpers";
-import { ResolverArgument as DirectiveResolverArgument } from "../resolverSignature";
+} from "../metadata.js";
+import { invariant, nullThrows } from "../utils/helpers.js";
+import { ResolverArgument as DirectiveResolverArgument } from "../resolverSignature.js";
 
 export function makeResolverSignature(documentAst: DocumentNode): Metadata {
   const resolvers: Metadata = {
diff --git a/src/transforms/mergeExtensions.ts b/src/transforms/mergeExtensions.ts
index 1b801078..a2f06d31 100644
--- a/src/transforms/mergeExtensions.ts
+++ b/src/transforms/mergeExtensions.ts
@@ -1,6 +1,6 @@
 import { DocumentNode, FieldDefinitionNode } from "graphql";
-import { extend } from "../utils/helpers";
-import { mapDefinitions } from "../utils/visitor";
+import { extend } from "../utils/helpers.js";
+import { mapDefinitions } from "../utils/visitor.js";
 
 /**
  * Takes every example of `extend type Foo` and `extend interface Foo` and
diff --git a/src/transforms/resolveResolverParams.ts b/src/transforms/resolveResolverParams.ts
index f4e31346..37b929e5 100644
--- a/src/transforms/resolveResolverParams.ts
+++ b/src/transforms/resolveResolverParams.ts
@@ -10,25 +10,25 @@ import {
   DerivedResolverDefinition,
   ITypeContext,
   UNRESOLVED_REFERENCE_NAME,
-} from "../TypeContext";
-import { err, ok } from "../utils/Result";
+} from "../TypeContext.js";
+import { err, ok } from "../utils/Result.js";
 import {
   DiagnosticsResult,
   FixableDiagnosticWithLocation,
   gqlErr,
   tsErr,
   tsRelated,
-} from "../utils/DiagnosticError";
-import { invariant, nullThrows } from "../utils/helpers";
+} from "../utils/DiagnosticError.js";
+import { invariant, nullThrows } from "../utils/helpers.js";
 import {
   ContextResolverArgument,
   DerivedContextResolverArgument,
   NamedResolverArgument,
   ResolverArgument,
   UnresolvedResolverArgument,
-} from "../resolverSignature";
-import * as E from "../Errors";
-import { GraphQLConstructor } from "../GraphQLConstructor";
+} from "../resolverSignature.js";
+import * as E from "../Errors.js";
+import { GraphQLConstructor } from "../GraphQLConstructor.js";
 
 export function resolveResolverParams(
   ctx: ITypeContext,
diff --git a/src/transforms/resolveTypes.ts b/src/transforms/resolveTypes.ts
index 623a528a..abdab57c 100644
--- a/src/transforms/resolveTypes.ts
+++ b/src/transforms/resolveTypes.ts
@@ -12,19 +12,19 @@ import {
   UnionTypeDefinitionNode,
   visit,
 } from "graphql";
-import { loc } from "../GraphQLConstructor";
-import { TypeContext } from "../TypeContext";
+import { loc } from "../GraphQLConstructor.js";
+import { TypeContext } from "../TypeContext.js";
 import * as ts from "typescript";
-import { err, ok } from "../utils/Result";
+import { err, ok } from "../utils/Result.js";
 import {
   DiagnosticResult,
   DiagnosticsResult,
   TsLocatableNode,
   gqlErr,
   tsErr,
-} from "../utils/DiagnosticError";
-import { extend, invariant, nullThrows } from "../utils/helpers";
-import * as E from "../Errors";
+} from "../utils/DiagnosticError.js";
+import { extend, invariant, nullThrows } from "../utils/helpers.js";
+import * as E from "../Errors.js";
 
 type Template = {
   declarationTemplate: TypeDefinitionNode;
diff --git a/src/transforms/snapshotsFromProgram.ts b/src/transforms/snapshotsFromProgram.ts
index a5c6f85f..b61b03ff 100644
--- a/src/transforms/snapshotsFromProgram.ts
+++ b/src/transforms/snapshotsFromProgram.ts
@@ -1,10 +1,10 @@
 import * as ts from "typescript";
-import { ParsedCommandLineGrats } from "../gratsConfig";
-import { ExtractionSnapshot, extract } from "../Extractor";
-import { DiagnosticsWithoutLocationResult } from "../utils/DiagnosticError";
-import { collectResults } from "../utils/Result";
-import { err } from "../utils/Result";
-import { extend } from "../utils/helpers";
+import { ParsedCommandLineGrats } from "../gratsConfig.js";
+import { ExtractionSnapshot, extract } from "../Extractor.js";
+import { DiagnosticsWithoutLocationResult } from "../utils/DiagnosticError.js";
+import { collectResults } from "../utils/Result.js";
+import { err } from "../utils/Result.js";
+import { extend } from "../utils/helpers.js";
 
 const TAG_REGEX = /@(gql)|(killsParentOnException)/i;
 
diff --git a/src/transforms/sortSchemaAst.ts b/src/transforms/sortSchemaAst.ts
index 265163fb..f79c0af6 100644
--- a/src/transforms/sortSchemaAst.ts
+++ b/src/transforms/sortSchemaAst.ts
@@ -1,5 +1,5 @@
 import { DefinitionNode, DocumentNode, Kind, NameNode, visit } from "graphql";
-import { naturalCompare } from "../utils/naturalCompare";
+import { naturalCompare } from "../utils/naturalCompare.js";
 
 /*
  * Similar to lexicographicSortSchema from graphql-js but applied against an AST
diff --git a/src/tsPlugin/initTsPlugin.ts b/src/tsPlugin/initTsPlugin.ts
index a691f6a4..4e8088f5 100644
--- a/src/tsPlugin/initTsPlugin.ts
+++ b/src/tsPlugin/initTsPlugin.ts
@@ -1,8 +1,9 @@
 import { version as gratsTsVersion } from "typescript";
+// @ts-ignore — typescript/lib/tsserverlibrary is the standard entry point for TS plugins
 import type * as TS from "typescript/lib/tsserverlibrary";
-import { extract } from "../Extractor";
-import { FAKE_ERROR_CODE } from "../utils/DiagnosticError";
-import { nullThrows } from "../utils/helpers";
+import { extract } from "../Extractor.js";
+import { FAKE_ERROR_CODE } from "../utils/DiagnosticError.js";
+import { nullThrows } from "../utils/helpers.js";
 
 // An experimental plugin for TypeScript that adds a new language service
 // which reports diagnostics for the current file. Currently it only reports
@@ -23,7 +24,7 @@ export function initTsPlugin(modules: { typescript: typeof TS }) {
       keyof TS.LanguageService
     >) {
       const x = info.languageService[k];
-      // @ts-expect-error
+      // @ts-ignore — dynamic proxy setup
       proxy[k] = (...args: Array<any>) => x.apply(info.languageService, args);
     }
 
diff --git a/src/utils/DiagnosticError.ts b/src/utils/DiagnosticError.ts
index 39472662..c5cc7567 100644
--- a/src/utils/DiagnosticError.ts
+++ b/src/utils/DiagnosticError.ts
@@ -1,6 +1,6 @@
 import { GraphQLError, Location, Source } from "graphql";
 import * as ts from "typescript";
-import { Result } from "./Result";
+import { Result } from "./Result.js";
 
 export type FixableDiagnostic = ts.Diagnostic & {
   fix?: ts.CodeFixAction;
diff --git a/src/utils/Result.ts b/src/utils/Result.ts
index 9d205649..63fa6d1e 100644
--- a/src/utils/Result.ts
+++ b/src/utils/Result.ts
@@ -1,5 +1,5 @@
 import * as ts from "typescript";
-import { DiagnosticsResult } from "./DiagnosticError";
+import { DiagnosticsResult } from "./DiagnosticError.js";
 
 export type Result<T, E> = Ok<T> | Err<E>;
 
diff --git a/src/validations/customSpecValidations.ts b/src/validations/customSpecValidations.ts
index a9b8fece..dacc1f1a 100644
--- a/src/validations/customSpecValidations.ts
+++ b/src/validations/customSpecValidations.ts
@@ -1,8 +1,8 @@
 import { DocumentNode, Kind } from "graphql";
-import { DiagnosticsResult, gqlErr } from "../utils/DiagnosticError";
-import { ok } from "../utils/Result";
+import { DiagnosticsResult, gqlErr } from "../utils/DiagnosticError.js";
+import { ok } from "../utils/Result.js";
 import { DiagnosticWithLocation } from "typescript";
-import * as E from "../Errors";
+import * as E from "../Errors.js";
 
 /**
  * Grats depends upon graphql-js for implementing spec-compliant GraphQL schema
diff --git a/src/validations/validateAsyncIterable.ts b/src/validations/validateAsyncIterable.ts
index caa1c762..df32e216 100644
--- a/src/validations/validateAsyncIterable.ts
+++ b/src/validations/validateAsyncIterable.ts
@@ -10,9 +10,9 @@ import {
   TypeNode,
   visit,
 } from "graphql";
-import { DiagnosticsResult, gqlErr } from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
-import * as E from "../Errors";
+import { DiagnosticsResult, gqlErr } from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
+import * as E from "../Errors.js";
 
 /**
  * Ensure that all fields on `Subscription` return an AsyncIterable and transform
diff --git a/src/validations/validateDirectiveArguments.ts b/src/validations/validateDirectiveArguments.ts
index cbec4518..a7cdffc7 100644
--- a/src/validations/validateDirectiveArguments.ts
+++ b/src/validations/validateDirectiveArguments.ts
@@ -15,9 +15,9 @@ import {
   DiagnosticsWithoutLocationResult,
   gqlErr,
   gqlRelated,
-} from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
-import { nullThrows } from "../utils/helpers";
+} from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
+import { nullThrows } from "../utils/helpers.js";
 
 /**
  * Surprisingly, the GraphQL spec (and therefore graphql-js) does not enforce
diff --git a/src/validations/validateDuplicateContextOrInfo.ts b/src/validations/validateDuplicateContextOrInfo.ts
index f0dac5e5..17aa20e6 100644
--- a/src/validations/validateDuplicateContextOrInfo.ts
+++ b/src/validations/validateDuplicateContextOrInfo.ts
@@ -1,12 +1,12 @@
-import { DeclarationDefinition, NameDefinition } from "../TypeContext";
-import { err, ok } from "../utils/Result";
+import { DeclarationDefinition, NameDefinition } from "../TypeContext.js";
+import { err, ok } from "../utils/Result.js";
 import {
   DiagnosticsResult,
   FixableDiagnosticWithLocation,
   gqlErr,
   gqlRelated,
-} from "../utils/DiagnosticError";
-import * as E from "../Errors";
+} from "../utils/DiagnosticError.js";
+import * as E from "../Errors.js";
 
 export function validateDuplicateContextOrInfo(
   definitions: Iterable<DeclarationDefinition>,
diff --git a/src/validations/validateMergedInterfaces.ts b/src/validations/validateMergedInterfaces.ts
index 08630d9c..0e315fc9 100644
--- a/src/validations/validateMergedInterfaces.ts
+++ b/src/validations/validateMergedInterfaces.ts
@@ -1,11 +1,11 @@
 import * as ts from "typescript";
-import * as E from "../Errors";
+import * as E from "../Errors.js";
 import {
   DiagnosticsWithoutLocationResult,
   tsErr,
   tsRelated,
-} from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
+} from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
 
 /**
  * Prevent using merged interfaces as GraphQL interfaces.
diff --git a/src/validations/validateSemanticNullability.ts b/src/validations/validateSemanticNullability.ts
index de126343..36a52718 100644
--- a/src/validations/validateSemanticNullability.ts
+++ b/src/validations/validateSemanticNullability.ts
@@ -9,11 +9,11 @@ import {
   DiagnosticsWithoutLocationResult,
   gqlErr,
   gqlRelated,
-} from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
-import { GratsConfig } from "../gratsConfig";
-import { SEMANTIC_NON_NULL_DIRECTIVE } from "../publicDirectives";
-import { astNode } from "../utils/helpers";
+} from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
+import { GratsConfig } from "../gratsConfig.js";
+import { SEMANTIC_NON_NULL_DIRECTIVE } from "../publicDirectives.js";
+import { astNode } from "../utils/helpers.js";
 
 /**
  * Ensure that all semantically non-nullable fields on an interface are also
diff --git a/src/validations/validateSomeTypesAreDefined.ts b/src/validations/validateSomeTypesAreDefined.ts
index 112ab4b7..570ede3c 100644
--- a/src/validations/validateSomeTypesAreDefined.ts
+++ b/src/validations/validateSomeTypesAreDefined.ts
@@ -2,9 +2,9 @@ import { GraphQLNamedType, GraphQLSchema } from "graphql";
 import {
   DiagnosticsWithoutLocationResult,
   locationlessErr,
-} from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
-import * as E from "../Errors";
+} from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
+import * as E from "../Errors.js";
 
 /**
  * We want to support a "getting started" experience where users can run `npx
diff --git a/src/validations/validateTypenames.ts b/src/validations/validateTypenames.ts
index 87efedc8..3955b0a5 100644
--- a/src/validations/validateTypenames.ts
+++ b/src/validations/validateTypenames.ts
@@ -1,19 +1,19 @@
 import * as ts from "typescript";
 import {
-  GraphQLInterfaceType,
   GraphQLSchema,
   Kind,
   isAbstractType,
+  isInterfaceType,
   isType,
 } from "graphql";
 import {
   DiagnosticsWithoutLocationResult,
   gqlErr,
   gqlRelated,
-} from "../utils/DiagnosticError";
-import { err, ok } from "../utils/Result";
-import { nullThrows } from "../utils/helpers";
-import * as E from "../Errors";
+} from "../utils/DiagnosticError.js";
+import { err, ok } from "../utils/Result.js";
+import { nullThrows } from "../utils/helpers.js";
+import * as E from "../Errors.js";
 
 /**
  * Ensure that every type which implements an interface or is a member of a
@@ -34,22 +34,20 @@ export function validateTypenames(
       // Synthesized type cannot guarantee that they have the correct __typename field, so we
       // prevent their use in interfaces and unions.
       if (ast.kind === Kind.OBJECT_TYPE_DEFINITION && ast.wasSynthesized) {
-        const message =
-          type instanceof GraphQLInterfaceType
-            ? E.genericTypeImplementsInterface()
-            : E.genericTypeUsedAsUnionMember();
+        const message = isInterfaceType(type)
+          ? E.genericTypeImplementsInterface()
+          : E.genericTypeUsedAsUnionMember();
         errors.push(gqlErr(ast.name, message));
       } else if (!hasTypename.has(implementor.name) && ast.exported == null) {
-        const message =
-          type instanceof GraphQLInterfaceType
-            ? E.concreteTypenameImplementingInterfaceCannotBeResolved(
-                implementor.name,
-                type.name,
-              )
-            : E.concreteTypenameInUnionCannotBeResolved(
-                implementor.name,
-                type.name,
-              );
+        const message = isInterfaceType(type)
+          ? E.concreteTypenameImplementingInterfaceCannotBeResolved(
+              implementor.name,
+              type.name,
+            )
+          : E.concreteTypenameInUnionCannotBeResolved(
+              implementor.name,
+              type.name,
+            );
 
         const err = gqlErr(ast.name, message, [
           gqlRelated(
diff --git a/tsconfig.json b/tsconfig.json
index 0964f7d3..68c439c5 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,23 +1,10 @@
 {
-  // Most ts-node options can be specified here using their programmatic names.
-  "ts-node": {
-    // It is faster to skip typechecking.
-    // Remove if you want ts-node to do typechecking.
-    "transpileOnly": true,
-    "files": true,
-    "compilerOptions": {
-      // compilerOptions specified here will override those declared below,
-      // but *only* in ts-node.  Useful if you want ts-node and tsc to use
-      // different options with a single tsconfig.json.
-    }
-  },
   "grats": {
     "nullableByDefault": false
   },
   "compilerOptions": {
     "skipLibCheck": true,
-    "lib": ["es2017"],
-    // typescript options here
+    "lib": ["es2020"],
     "experimentalDecorators": true,
     "outDir": "dist",
     "downlevelIteration": true,
@@ -25,6 +12,8 @@
     "declaration": true,
     "resolveJsonModule": true,
     "strictPropertyInitialization": true,
+    "module": "nodenext",
+    "moduleResolution": "nodenext",
     "paths": {
       // For tests
       "grats": ["./src/index.ts"]
@@ -34,6 +23,7 @@
     "node_modules",
     "dist",
     "src/tests/fixtures",
+    "src/tests/integrationFixtures",
     "docs",
     "examples",
     "website",
diff --git a/website/docs/01-getting-started/02-cli.md b/website/docs/01-getting-started/02-cli.md
index 480a36d7..44490e07 100644
--- a/website/docs/01-getting-started/02-cli.md
+++ b/website/docs/01-getting-started/02-cli.md
@@ -56,30 +56,42 @@ Options:
   -h, --help                 display help for command
 
 Commands:
-  locate [options] <ENTITY>
+  locate [options] <COORDINATE>
 ```
 
 ## Locate
 
-The `locate` command reports the location (file, line, column) at which a given type or field is defined in your code. `grats locate` can also be invoked by other tools. For example the click-to-definition feature of an GraphQL editor integration could use invoke this command to find the location of a type or field.
+The `locate` command reports the location (file, line, column) at which a given schema element is defined in your code. It accepts a [Schema Coordinate](https://spec.graphql.org/draft/#sec-Schema-Coordinates) as its argument.
+
+`grats locate` can also be invoked by other tools. For example the click-to-definition feature of a GraphQL editor integration could invoke this command to find the location of a type or field.
 
 For example, Relay's VSCode Extension is [exploring](https://github.com/facebook/relay/pull/4434) adding the ability to leverage such a tool.
 
 ```bash
+# Locate a named type
+npx grats locate User
+
 # Locate a field
 npx grats locate User.name
 
-# Locate a named type
-npx grats locate User
+# Locate a field argument
+npx grats locate "Query.user(id:)"
+
+# Locate an enum value
+npx grats locate "MyEnum.VALUE"
+
+# Locate a directive
+npx grats locate @deprecated
 ```
 
 ### Options
 
 ```
-Usage: grats locate [options] <ENTITY>
+Usage: grats locate [options] <COORDINATE>
 
 Arguments:
-ENTITY                 GraphQL entity to locate. E.g. `User` or `User.id`
+COORDINATE             Schema coordinate to locate. E.g. `User`, `User.name`,
+                       `Query.user(id:)`, `@deprecated`
 
 Options:
   --tsconfig <TSCONFIG>  Path to tsconfig.json. Defaults to auto-detecting based on the current working directory
diff --git a/website/package.json b/website/package.json
index 04869f86..0381a6ea 100644
--- a/website/package.json
+++ b/website/package.json
@@ -12,7 +12,7 @@
     "write-translations": "docusaurus write-translations",
     "write-heading-ids": "docusaurus write-heading-ids",
     "typecheck": "tsc",
-    "grats": "ts-node ./scripts/gratsCode.ts",
+    "grats": "tsx ./scripts/gratsCode.ts",
     "word-count": "find . -type f \\( -name \\*.md -o -name \\*.mdx \\) -exec wc -w {} + | awk '{total += $1} END {print total}'"
   },
   "dependencies": {
@@ -30,7 +30,7 @@
     "@typescript/vfs": "1.6.0",
     "clsx": "^1.2.1",
     "glob": "^9.3.4",
-    "graphql": "^16.11.0",
+    "graphql": "17.0.0-alpha.11",
     "grats": "workspace:*",
     "lz-string": "^1.5.0",
     "monaco-editor": "^0.52.2",
@@ -53,7 +53,7 @@
     "cheerio": "^1.2.0",
     "graphql-relay": "^0.10.0",
     "monaco-editor-webpack-plugin": "^7.1.0",
-    "ts-node": "^10.9.2",
+    "tsx": "^4.19.2",
     "typescript": "5.9.2"
   },
   "browserslist": {
diff --git a/website/plugins/webpack.js b/website/plugins/webpack.js
index 39a266cd..64d0d8f8 100644
--- a/website/plugins/webpack.js
+++ b/website/plugins/webpack.js
@@ -8,6 +8,13 @@ module.exports = function (_context, _options) {
         resolve: {
           fallback: {
             path: require.resolve("path-browserify"),
+            url: false,
+            fs: false,
+            module: false,
+          },
+          // Map .js extensions to .ts for ESM-style imports in TypeScript source
+          extensionAlias: {
+            ".js": [".ts", ".tsx", ".js"],
           },
         },
         node: {