feat: add transport types + migrate Anthropic normalize path#13347
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Add agent/transports/types.py with three shared dataclasses: - NormalizedResponse: content, tool_calls, finish_reason, reasoning, usage, provider_data - ToolCall: id, name, arguments, provider_data (per-tool-call protocol metadata) - Usage: prompt_tokens, completion_tokens, total_tokens, cached_tokens Add normalize_anthropic_response_v2() to anthropic_adapter.py — wraps the existing v1 function and maps its output to NormalizedResponse. One call site in run_agent.py (the main normalize branch) uses v2 with a back-compat shim to SimpleNamespace for downstream code. No ABC, no registry, no streaming, no client lifecycle. Those land in PR 3 with the first concrete transport (AnthropicTransport). 46 new tests: - test_types.py: dataclass construction, build_tool_call, map_finish_reason - test_anthropic_normalize_v2.py: v1-vs-v2 regression tests (text, tools, thinking, mixed, stop reasons, mcp prefix stripping, edge cases) Part of the provider transport refactor (PR 2 of 9).
This was referenced Apr 21, 2026
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Step 2 of the 9-PR provider transport refactor. Adds shared normalized response types and migrates one real Anthropic normalize call site to use them, proving the shape before the ABC lands in PR 3.
Salvage of #13073 onto current main — @kshitijk4poor's authorship preserved via cherry-pick.
Changes
agent/transports/types.py:NormalizedResponse,ToolCall,Usagedataclasses +build_tool_call()/map_finish_reason()helpersagent/anthropic_adapter.py:normalize_anthropic_response_v2()wrapping v1 intoNormalizedResponserun_agent.pyL11375: Anthropic normalize branch now calls v2 + a temporary shim to SimpleNamespace (vanishes in PR 3)Validation
tests/agent/transports/+tests/agent/test_anthropic_normalize_v2.py: 46/46 passtests/agent/ -k "anthropic or normalize": 235/235 pass_build_assistant_message+ L11428 thinking-prefill check readingreasoning_content) succeed.Closes #13073