crow_kb_review_flags

THE RISK

Low Risk

Why crow_kb_review_flags needs a policy

This tool retrieves and displays a list of flagged resources for human review. It has no side effects—it queries existing data without creating, modifying, deleting, or executing operations. The blast radius of misuse is minimal; an AI agent could only access information about outdated resources, not alter system state or data.

From the tool's definition The tool 'crow_kb_review_flags' explicitly 'List[s] resources' with no description of modification, deletion, or execution capabilities. The verb 'list' and 'review' indicate read-only data retrieval.

Documented attack patterns abuse exactly the kind of access crow_kb_review_flags gives an agent:

POLICY

How to control crow_kb_review_flags

PolicyLayer is an MCP gateway — it sits between your AI agents and Crow, and nothing reaches the server without passing your rules. This is the rule we recommend for crow_kb_review_flags:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "crow_kb_review_flags": {}
  }
}

crow_kb_review_flags is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Crow — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
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FAQ

Questions about crow_kb_review_flags

What does the crow_kb_review_flags tool do? +

List resources that have been flagged as potentially outdated, awaiting human review. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on crow_kb_review_flags? +

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

What risk level is crow_kb_review_flags? +

crow_kb_review_flags is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit crow_kb_review_flags? +

Yes. Add a rate_limit block to the crow_kb_review_flags 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 crow_kb_review_flags completely? +

Set action: deny in the PolicyLayer policy for crow_kb_review_flags. 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 crow_kb_review_flags? +

crow_kb_review_flags is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Crow tool call.

Start from Crow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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