feat: add BedrockTransport + wire build_kwargs#13467
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Add BedrockTransport wrapping agent/bedrock_adapter.py behind the ProviderTransport ABC. Fourth and final transport. Wire ALL transport methods to production paths in run_agent.py: - build_kwargs: _build_api_kwargs bedrock branch (L6713) - normalize_response: main normalize loop, new bedrock_converse branch (handles both raw boto3 dicts and already-normalized SimpleNamespace) - validate_response: response validation, new bedrock_converse branch - finish_reason: new bedrock_converse branch in finish_reason extraction The truncation path (L9588) intentionally groups bedrock with chat_completions — both have the same response.choices shape because normalize_converse_response runs at the dispatch site. 17 new tests. 231 bedrock/converse/transport tests pass (0 failures). PR 6 of the provider transport refactor.
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Summary
PR 6 of the provider transport refactor (PRs 1-5: #12975, #13073, #13366, #13430, #13447).
Fourth and final transport — completes the transport layer with all 4 api_modes covered. All transport methods wired to production paths.
What ships
agent/transports/bedrock.py— BedrockTransport (155 lines)All transport methods wired:
build_kwargs()_build_api_kwargsbedrock branch (L6713)normalize_response()bedrock_conversebranch (L10828)validate_response()bedrock_conversebranch (L9389)finish_reasonbedrock_conversebranch (L9559)convert_messages()/convert_tools()build_kwargs()normalize_response()handles two shapes: raw boto3 dicts (from direct converse calls) and already-normalized SimpleNamespace with .choices (from the dispatch site at L5169).The truncation path (L9588) intentionally groups bedrock with chat_completions — both have the same
response.choicesshape becausenormalize_converse_responsealready runs at the dispatch site.Transport coverage — complete
Test plan