comet_folders · Comet MCP: Risk & Policy

WHAT IT DOES

What comet_folders does on Comet

AI agents use comet_folders to create or update resources in Comet — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Comet environment.

WHY IT NEEDS A POLICY

Why comet_folders needs a policy

The tool performs reversible write operations: listing (Read), creating spaces (Write), and saving research (Write). The most severe capability is creation/modification of research spaces, making this a Write category tool.

From the tool's definition Tool description states it can 'create new ones' (spaces) and 'save current research to a space,' which are data creation and modification operations. No deletion or destructive capability is mentioned.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

comet_folders Rate-limited

comet_folders 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "comet_folders": {
      "limits": [
        {
          "counter": "comet_folders_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Comet, so you can run agents against it safely.

FAQ

Questions about comet_folders

What does the comet_folders tool do? +

Manage research spaces in Perplexity. List existing spaces, create new ones, or save current research to a space. It is categorised as a Write tool in the Comet MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on comet_folders? +

Register the Comet MCP server in PolicyLayer and add a rule for comet_folders: 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 Comet. Nothing to install.

What risk level is comet_folders? +

comet_folders is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit comet_folders? +

Yes. Add a rate_limit block to the comet_folders 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.

How do I block comet_folders completely? +

Set action: deny in the PolicyLayer policy for comet_folders. 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.

What MCP server provides comet_folders? +

comet_folders is provided by the Comet MCP server (simplicianokelly52/comet_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.