modelcontextprotocol-python-sdk-contextlisted

# Context navigator ## Overview This navigator catalogs references for the official MCP Python SDK at GitHub SHA `3eb579948a4719d606d2adbd1f3f69371c9c0f48` (HEAD of `main` on 2026-05-26). HEAD is **v2 pre-alpha**; the current stable release lives on the [`v1.x` branch](https://github.com/modelcontextprotocol/python-sdk/tree/v1.x) and uses the older `FastMCP` / camelCase / decorator-based APIs. All references in this contextualizer document v2 syntax — if you have v1 code in front of you, start with the migration reference. When asked a question this navigator's domain covers: 1. Scan the **Catalog** below for the matching topic. 2. Follow the link to read the reference file. 3. If the question spans multiple references, consult the **Cross-reference map**. 4. If a reference points at a source URL for deeper detail, follow it only if the reference itself didn't answer the question. ## Claims policy Cite by default, and make load-bearing claims verifiable: 1. **Inline-cite every load-bearing claim with its SHA-pinned permalink** — the `https://github.com/<owner>/<repo>/blob/<sha>/<path>#L<start>-L<end>` link the reference gives for that fact (versions, defaults, signatures, deprecations, behavior a user could get wrong by guessing). Put the permalink inline, on the claim. Use a bare filename parenthetical (e.g. *(reference-name.md)*) only when the reference genuinely provides no permalink. This inline permalink is what the grounded-citation eval (SELF-AUDIT Check 8) grad