fix(openai): support Codex agent input items - #2455
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2455 +/- ##
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- Coverage 85.05% 85.04% -0.01%
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Files 159 159
Lines 22645 22655 +10
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- Misses 2217 2219 +2
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July 30, 2026 11:05
…gent-input-items # Conflicts: # internal/apischema/openai/openai.go # internal/apischema/openai/openai_test.go
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Description
Allow Responses API requests containing Codex-emitted agent_message and agent_reasoning input items to pass through OpenAI-compatible backends.
Root cause
The Responses input-item union rejected these types before the request reached the upstream provider.
Fix
Preserve the raw JSON for both types, so their evolving Codex-specific fields are forwarded unchanged without requiring an incomplete schema model.
Related Issue
Fixes #2442
Testing