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netbird/proxy/internal
mlsmaycon 6415215126 [proxy] Skip OpenAI-shape identity injection on non-OpenAI bodies
Gateway records enable body-level identity so LiteLLM's tag-budget check
can read it, and the injector wrote "user" and "metadata.tags" into every
JSON object regardless of dialect. Claude Code reaches those same records
on /v1/messages, where "user" is not a permitted top-level field and
metadata accepts only "user_id", so the upstream rejected the request with
a 400 naming a field the client never sent. Rewriting the body also
changed the bytes a gateway-side prompt cache keys on.

Gate the body write on the surface llm_request_parser resolved from the
path. Header stamping is untouched, so spend tracking and per-end-user
budgets keep working on the surfaces that lose the body path.
2026-08-11 02:52:11 +00:00
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