list_pr_reviews

THE RISK

Low Risk

Why list_pr_reviews needs a policy

This tool performs a query operation that retrieves existing pull request review data without creating, modifying, or deleting any information. It is a read-only operation with minimal blast radius if misused by an AI agent.

From the tool's definition Tool name 'list_pr_reviews' and description 'List reviews on a pull request' indicate a retrieval operation with no side effects or modifications.

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

POLICY

How to control list_pr_reviews

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

policy.json

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

list_pr_reviews 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 Forgejo — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

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.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_pr_reviews

What does the list_pr_reviews tool do? +

List reviews on a pull request. It is categorised as a Read tool in the Forgejo MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_pr_reviews? +

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

What risk level is list_pr_reviews? +

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

Can I rate-limit list_pr_reviews? +

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

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

list_pr_reviews is provided by the Forgejo MCP server (sqcows/forgejo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Forgejo tool call.

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

CHECK YOUR STACK →