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fix(asgi): redirect /mcp → /mcp/ for clients that omit the trailing slash

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Starlette's Mount("/mcp", ...) only matches /mcp/* paths. A POST to bare
/mcp falls through to the catch-all Django mount and returns 404. The
fast-agent MCP client and the README example both used the no-slash URL,
so the validator was never able to initialize a session — every call
landed in django.request.

Adds a 307 redirect at /mcp so any client URL works, and points the
validator config at /mcp/ directly to skip the redirect round-trip.
Also gitignores fastagent.jsonl (a runtime log file fast-agent writes
into the working directory).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Robert Helewka
2026-04-29 12:04:42 -04:00
parent e2a6d45b77
commit 1cd556c3f6
4 changed files with 12 additions and 3 deletions
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validator/README.md
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@@ -55,7 +55,7 @@ cd mnemosyne/
uvicorn mnemosyne.asgi:app --host 0.0.0.0 --port 22091 --workers 1
```
By default the validator points at `http://localhost:22091/mcp`. If your Mnemosyne is on another host, override `mcp.servers.mnemosyne.url` in `fastagent.secrets.yaml`.
By default the validator points at `http://localhost:22091/mcp/` (note the trailing slash — Starlette's `Mount` only matches paths under the mount prefix, so `/mcp` without the slash falls through to Django). If your Mnemosyne is on another host, override `mcp.servers.mnemosyne.url` in `fastagent.secrets.yaml`.
## Run the validator