> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/nemo/relay/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nemo/relay/_mcp/server.

# Function detect_request_surface

> Detect the request surface from a raw request body by top-level key.

Generated from `cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker`.

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Detect the request surface from a raw request body by top-level key.

Priority: OpenAI Responses (`input`/`instructions`) > Anthropic Messages (`system`) > OpenAI Chat (`messages`). `None` when no key matches or `body` is not an object. This is a best-effort heuristic: an Anthropic request that omits the optional top-level `system` is indistinguishable from OpenAI Chat and classifies as `OpenAIChat`.