AI agents call detect_chords to retrieve information from Claud-Ear without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
detect_chords performs semantic analysis on audio to extract chord information. This is a retrieval/query operation with no side effects on data or systems. The tool analyzes and returns information without modifying the input audio, creating irreversible changes, or executing code with unpredictable effects.
From the tool's definition Tool description states 'Detect the chord progression of a track' and 'Uses Demucs to isolate' — this is an analysis operation that retrieves chord data from audio without modifying, deleting, or executing arbitrary commands.
Attacks that exploit this kind of access
Detect the chord progression of a track. Uses Demucs to isolate the. It is categorised as a Read tool in the Claud-Ear MCP Server, which means it retrieves data without modifying state.
Register the Claud-Ear MCP server in PolicyLayer and add a rule for detect_chords: 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 Claud-Ear. Nothing to install.
detect_chords 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 detect_chords 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 detect_chords. 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.
detect_chords is provided by the Claud-Ear MCP server (null-phnix/claud-ear). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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