music.recording
Resolve a song/recording from MusicBrainz (open, CC0 music encyclopedia). Pass artist + title, or a free-text/Lucene query. Returns ranked recordings with MBID, title, primary artist, length (ms), first-release date, disambiguation. Keyless, public-domain. Canonicalize a track to its MBID.
This record as markdown: /tools/io-github-2s-io-mcp/music.recording.md
What music.recording does on Mcp
AI agents call music.recording to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why music.recording is rated Low
This tool queries a public music encyclopedia (MusicBrainz) to retrieve metadata about recordings. It accepts search parameters (artist, title, or query) and returns structured data (MBID, title, artist, length, release date, disambiguation). No data is created, modified, deleted, or used to trigger external operations.
From the tool's definition Tool description specifies it 'Resolve[s] a song/recording from MusicBrainz' and 'Returns ranked recordings with MBID, title, primary artist, length (ms), first-release date, disambiguation.' These are pure read/query operations that retrieve and return data…
Attacks that exploit this kind of access
The rule that runs music.recording safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For music.recording, this is the rule to start with:
music.recording is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every music.recording call is checked against it from then on.
Questions about music.recording
Resolve a song/recording from MusicBrainz (open, CC0 music encyclopedia). Pass artist + title, or a free-text/Lucene query. Returns ranked recordings with MBID, title, primary artist, length (ms), first-release date, disambiguation. Keyless, public-domain. Canonicalize a track to its MBID. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for music.recording: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp. Nothing to install.
music.recording is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the music.recording rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for music.recording. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
music.recording is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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