diff --git a/agent/anthropic_adapter.py b/agent/anthropic_adapter.py
index d8d181cc107..ff1d536b175 100644
--- a/agent/anthropic_adapter.py
+++ b/agent/anthropic_adapter.py
@@ -19,6 +19,7 @@
 from hermes_constants import get_hermes_home
 from types import SimpleNamespace
 from typing import Any, Dict, List, Optional, Tuple
+from utils import normalize_proxy_env_vars
 
 try:
     import anthropic as _anthropic_sdk
@@ -308,6 +309,9 @@ def build_anthropic_client(api_key: str, base_url: str = None, timeout: float =
             "The 'anthropic' package is required for the Anthropic provider. "
             "Install it with: pip install 'anthropic>=0.39.0'"
         )
+
+    normalize_proxy_env_vars()
+
     from httpx import Timeout
 
     normalized_base_url = _normalize_base_url_text(base_url)
diff --git a/agent/auxiliary_client.py b/agent/auxiliary_client.py
index 50d4d86afb0..4f974a28213 100644
--- a/agent/auxiliary_client.py
+++ b/agent/auxiliary_client.py
@@ -48,7 +48,7 @@
 from agent.credential_pool import load_pool
 from hermes_cli.config import get_hermes_home
 from hermes_constants import OPENROUTER_BASE_URL
-from utils import base_url_host_matches, base_url_hostname
+from utils import base_url_host_matches, base_url_hostname, normalize_proxy_env_vars
 
 logger = logging.getLogger(__name__)
 
@@ -1028,6 +1028,8 @@ def _validate_proxy_env_urls() -> None:
     """
     from urllib.parse import urlparse
 
+    normalize_proxy_env_vars()
+
     for key in ("HTTPS_PROXY", "HTTP_PROXY", "ALL_PROXY",
                 "https_proxy", "http_proxy", "all_proxy"):
         value = str(os.environ.get(key) or "").strip()
diff --git a/gateway/platforms/base.py b/gateway/platforms/base.py
index 86a867c107d..afb8767124a 100644
--- a/gateway/platforms/base.py
+++ b/gateway/platforms/base.py
@@ -19,6 +19,8 @@
 from abc import ABC, abstractmethod
 from urllib.parse import urlsplit
 
+from utils import normalize_proxy_url
+
 logger = logging.getLogger(__name__)
 
 
@@ -159,13 +161,13 @@ def resolve_proxy_url(platform_env_var: str | None = None) -> str | None:
     if platform_env_var:
         value = (os.environ.get(platform_env_var) or "").strip()
         if value:
-            return value
+            return normalize_proxy_url(value)
     for key in ("HTTPS_PROXY", "HTTP_PROXY", "ALL_PROXY",
                 "https_proxy", "http_proxy", "all_proxy"):
         value = (os.environ.get(key) or "").strip()
         if value:
-            return value
-    return _detect_macos_system_proxy()
+            return normalize_proxy_url(value)
+    return normalize_proxy_url(_detect_macos_system_proxy())
 
 
 def proxy_kwargs_for_bot(proxy_url: str | None) -> dict:
diff --git a/run_agent.py b/run_agent.py
index 722f7cea4b3..592156b10b3 100644
--- a/run_agent.py
+++ b/run_agent.py
@@ -124,7 +124,7 @@
     convert_scratchpad_to_think, has_incomplete_scratchpad,
     save_trajectory as _save_trajectory_to_file,
 )
-from utils import atomic_json_write, base_url_host_matches, base_url_hostname, env_var_enabled
+from utils import atomic_json_write, base_url_host_matches, base_url_hostname, env_var_enabled, normalize_proxy_url
 
 
 
@@ -187,7 +187,7 @@ def _get_proxy_from_env() -> Optional[str]:
                 "https_proxy", "http_proxy", "all_proxy"):
         value = os.environ.get(key, "").strip()
         if value:
-            return value
+            return normalize_proxy_url(value)
     return None
 
 
diff --git a/tests/agent/test_proxy_and_url_validation.py b/tests/agent/test_proxy_and_url_validation.py
index 4fd6138a4d2..7d7268ed1f8 100644
--- a/tests/agent/test_proxy_and_url_validation.py
+++ b/tests/agent/test_proxy_and_url_validation.py
@@ -6,6 +6,8 @@
 """
 from __future__ import annotations
 
+import os
+
 import pytest
 
 from agent.auxiliary_client import _validate_base_url, _validate_proxy_env_urls
@@ -31,6 +33,12 @@ def test_proxy_env_accepts_empty(monkeypatch):
     _validate_proxy_env_urls()  # should not raise
 
 
+def test_proxy_env_normalizes_socks_alias(monkeypatch):
+    monkeypatch.setenv("ALL_PROXY", "socks://127.0.0.1:1080/")
+    _validate_proxy_env_urls()
+    assert os.environ["ALL_PROXY"] == "socks5://127.0.0.1:1080/"
+
+
 @pytest.mark.parametrize("key", [
     "HTTP_PROXY", "HTTPS_PROXY", "ALL_PROXY",
     "http_proxy", "https_proxy", "all_proxy",
diff --git a/tests/gateway/test_proxy_mode.py b/tests/gateway/test_proxy_mode.py
index 11180639e8d..e25f226ee92 100644
--- a/tests/gateway/test_proxy_mode.py
+++ b/tests/gateway/test_proxy_mode.py
@@ -8,6 +8,7 @@
 import pytest
 
 from gateway.config import Platform, StreamingConfig
+from gateway.platforms.base import resolve_proxy_url
 from gateway.run import GatewayRunner
 from gateway.session import SessionSource
 
@@ -133,6 +134,15 @@ def test_empty_string_treated_as_unset(self, monkeypatch):
             assert runner._get_proxy_url() is None
 
 
+class TestResolveProxyUrl:
+    def test_normalizes_socks_alias_from_all_proxy(self, monkeypatch):
+        for key in ("HTTPS_PROXY", "HTTP_PROXY", "ALL_PROXY",
+                    "https_proxy", "http_proxy", "all_proxy"):
+            monkeypatch.delenv(key, raising=False)
+        monkeypatch.setenv("ALL_PROXY", "socks://127.0.0.1:1080/")
+        assert resolve_proxy_url() == "socks5://127.0.0.1:1080/"
+
+
 class TestRunAgentProxyDispatch:
     """Test that _run_agent() delegates to proxy when configured."""
 
diff --git a/tests/run_agent/test_create_openai_client_proxy_env.py b/tests/run_agent/test_create_openai_client_proxy_env.py
index 7ac9b7e16e2..9ef8e3dcd13 100644
--- a/tests/run_agent/test_create_openai_client_proxy_env.py
+++ b/tests/run_agent/test_create_openai_client_proxy_env.py
@@ -67,6 +67,14 @@ def test_get_proxy_from_env_ignores_blank_values(monkeypatch):
     assert _get_proxy_from_env() == "http://real-proxy:8080"
 
 
+def test_get_proxy_from_env_normalizes_socks_alias(monkeypatch):
+    for key in ("HTTPS_PROXY", "HTTP_PROXY", "ALL_PROXY",
+                "https_proxy", "http_proxy", "all_proxy"):
+        monkeypatch.delenv(key, raising=False)
+    monkeypatch.setenv("ALL_PROXY", "socks://127.0.0.1:1080/")
+    assert _get_proxy_from_env() == "socks5://127.0.0.1:1080/"
+
+
 @patch("run_agent.OpenAI")
 def test_create_openai_client_routes_via_proxy_when_env_set(mock_openai, monkeypatch):
     """With HTTPS_PROXY set, the custom httpx.Client must mount an HTTPProxy pool.
diff --git a/utils.py b/utils.py
index 6b998e22308..f3d38006d14 100644
--- a/utils.py
+++ b/utils.py
@@ -197,6 +197,39 @@ def env_bool(key: str, default: bool = False) -> bool:
     return is_truthy_value(os.getenv(key, ""), default=default)
 
 
+# ─── Proxy Helpers ────────────────────────────────────────────────────────────
+
+
+_PROXY_ENV_KEYS = (
+    "HTTPS_PROXY", "HTTP_PROXY", "ALL_PROXY",
+    "https_proxy", "http_proxy", "all_proxy",
+)
+
+
+def normalize_proxy_url(proxy_url: str | None) -> str | None:
+    """Normalize proxy URLs for httpx/aiohttp compatibility.
+
+    WSL/Clash-style environments often export SOCKS proxies as
+    ``socks://127.0.0.1:PORT``. httpx rejects that alias and expects the
+    explicit ``socks5://`` scheme instead.
+    """
+    candidate = str(proxy_url or "").strip()
+    if not candidate:
+        return None
+    if candidate.lower().startswith("socks://"):
+        return f"socks5://{candidate[len('socks://'):]}"
+    return candidate
+
+
+def normalize_proxy_env_vars() -> None:
+    """Rewrite supported proxy env vars to canonical URL forms in-place."""
+    for key in _PROXY_ENV_KEYS:
+        value = os.getenv(key, "")
+        normalized = normalize_proxy_url(value)
+        if normalized and normalized != value:
+            os.environ[key] = normalized
+
+
 # ─── URL Parsing Helpers ──────────────────────────────────────────────────────
 
 
@@ -236,4 +269,3 @@ def base_url_host_matches(base_url: str, domain: str) -> bool:
     if not domain:
         return False
     return hostname == domain or hostname.endswith("." + domain)
-