Set the project notes/description text.
AI agents use project_set_notes to create or update resources in ReaperMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ReaperMCP environment.
This tool modifies project documentation/metadata by setting notes or description text. Such changes are reversible (the previous notes can be restored), non-destructive, and pose minimal operational risk. The blast radius of misuse is limited to corrupting project documentation, not affecting actual audio data or causing financial harm. Hence, it is correctly classified as Write with low severity.
From the tool's definition Tool name 'project_set_notes' and description 'Set the project notes/description text' indicate modification of project metadata. The verb 'Set' combined with 'notes/description' clearly shows this creates or modifies data reversibly.
Documented attack patterns abuse exactly the kind of access project_set_notes 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 project_set_notes:
{
"version": "1",
"default": "deny",
"tools": {
"project_set_notes": {
"limits": [
{
"counter": "project_set_notes_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}project_set_notes stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Set the project notes/description text. It is categorised as a Write tool in the ReaperMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Reaper MCP server in PolicyLayer and add a rule for project_set_notes: 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.
project_set_notes is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the project_set_notes 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 project_set_notes. 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.
project_set_notes 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.
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138 ReaperMCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.