Stereo correlation, mid/side balance, and width estimate.
AI agents call analyze_stereo_field to retrieve information from ReaperMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs audio analysis by measuring stereo properties (correlation, mid/side balance, width). It retrieves and computes metrics from existing audio data without altering tracks, executing code, deleting content, or committing financial transactions.
From the tool's definition Tool name 'analyze_stereo_field' and description 'Stereo correlation, mid/side balance, and width estimate' indicate data analysis and retrieval operations with no modification, creation, deletion, or execution of external commands.
Documented attack patterns abuse exactly the kind of access analyze_stereo_field gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and ReaperMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for analyze_stereo_field:
{
"version": "1",
"default": "deny",
"tools": {
"analyze_stereo_field": {}
}
}analyze_stereo_field is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Stereo correlation, mid/side balance, and width estimate. It is categorised as a Read tool in the ReaperMCP MCP Server, which means it retrieves data without modifying state.
Register the Reaper MCP server in PolicyLayer and add a rule for analyze_stereo_field: 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 ReaperMCP. Nothing to install.
analyze_stereo_field 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 analyze_stereo_field 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 analyze_stereo_field. 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.
analyze_stereo_field is provided by the Reaper MCP server (xdarkzx/reaper-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from ReaperMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
138 ReaperMCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.