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.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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umsachde · Claimed
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RECOM_CACHE_PATH~/.recom/library_cache.json Where the cached set lives (~22 KB).RECOM_CACHE_TTLto and a later call can recommend a song you just saved.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_JUDGE_MODELclaude-opus-5 Model for lyric-based labelling.RECOM_JUDGE_EFFORTlow Effort level for that labelling.RECOM_JUDGE_BATCH12 Songs per labelling request.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_DB_PATH~/.recom/store.db Mood index, labels, history, feedback.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.
Secrets not written to files
1 secret value written to files
Avoid persisting secrets to disk. Keep them in memory or your secret manager.
Secrets not logged
12 secret values sent to console.log
Redact or omit secret values from log output.
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