Files
hermes-agent/tests
kshitijk4poor 26530e7df5 fix(codex): strip nested extra_body retention at the consumer Codex wire
The wire guard only removed the top-level prompt_cache_retention kwarg, but
the OpenAI SDK merges extra_body into the outgoing JSON body, so a nested
extra_body.prompt_cache_retention reaches chatgpt.com/backend-api/codex just
the same and still triggers the non-retryable HTTP 400. Both injection
vectors are real and probe-verified: the Relay overlay's 'key not in
baseline' arm admits an interceptor-added extra_body, and
request_overrides={'extra_body': {...}} lands verbatim in build_kwargs
output.

Close the gap in the same helper: strip the nested field too (copy-on-write,
never mutating the caller's mapping), drop extra_body entirely when it
empties, and log the same warning. Compatible endpoints keep nested
retention untouched.

Mutation-verified: removing the extra_body leg fails both new nested tests.

Reported by egilewski's review on #89969.
2026-08-20 03:15:14 +05:30
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