re-com
MCP server that recommends new songs from YouTube Music, ensuring no song is already liked or in any playlist, using multiple independent signals for explainable rankings.
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RECOM_CACHE_PATHlabels and history rather than waking up to an empty store. RECOM_DB_PATH / stillRECOM_CACHE_TTLto and a later call can recommend a song you just saved.RECOM_GRAPHSet 0 to disable the [music graph](#the-music-graph) and use native signals only.RECOM_GRAPH_DB_PATHThe music-graph cache. Shared by every backend — not scoped per provider.RECOM_JUDGE_MODELModel for lyric-based labelling.RECOM_JUDGE_EFFORTEffort level for that labelling.RECOM_JUDGE_BATCHSongs per labelling request.RECOM_PROVIDER2. Point re-com at it via RECOM_YTMUSIC_MCP_COMMAND (its interpreter) and RECOM_YTMUSIC_MCP_ARGS (its server.py path). =youtube is the default, so it doesn't need to be set explicitly.RECOM_SEED_WORKERSHow many seeds are gathered concurrently. See [Speed](#speed).RECOM_SPOTIFY_MCP_COMMAND2. Register a second, separate re-com instance with RECOM_PROVIDER=spotify and / RECOM_SPOTIFY_MCP_ARGS pointing at it:RECOM_SPOTIFY_MCP_ARGS2. Register a second, separate re-com instance with RECOM_PROVIDER=spotify and RECOM_SPOTIFY_MCP_COMMAND / pointing at it:RECOM_SPOTIFY_CAPABILITIESComma-separated radio,related,artist to re-enable Spotify's native signals if your app has Extended Quota Mode.RECOM_DB_PATHMood index, labels, history, feedback. [Scoped per backend](#one-store-per-backend) — Spotify uses store-spotify.db.RECOM_YTMUSIC_MCP_COMMAND2. Point re-com at it via (its interpreter) and RECOM_YTMUSIC_MCP_ARGS (its server.py path). RECOM_PROVIDER=youtube is the default, so it doesn't need to be set explicitly.RECOM_YTMUSIC_MCP_ARGS2. Point re-com at it via RECOM_YTMUSIC_MCP_COMMAND (its interpreter) and (its server.py path). RECOM_PROVIDER=youtube is the default, so it doesn't need to be set explicitly.RECOM_AUTH_PATHTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
10/10 tools missing one or more hints — recommend_from_song (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); recommend_from_playlist (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); songs_by_artist (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +7 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
[](https://m8ven.ai/mcp/umsachde/re-com)?variant=verified to the badge URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
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