pr_resolve · Pr Review MCP: Risk & Policy

WHAT IT DOES

What pr_resolve does on Pr Review

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

WHY IT NEEDS A POLICY

Why pr_resolve needs a policy

Marking a review thread as resolved modifies metadata/state on GitHub pull requests but does not delete data or execute arbitrary code. The operation is reversible (threads can be unresolvedif needed), making it a Write action rather than Destructive.

From the tool's definition Tool name 'pr_resolve' and description 'Mark a review thread as resolved' indicate modifying the state of a review thread on GitHub. This is a reversible state change operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pr_resolve Rate-limited

pr_resolve 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": {
    "pr_resolve": {
      "limits": [
        {
          "counter": "pr_resolve_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

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

FAQ

Questions about pr_resolve

What does the pr_resolve tool do? +

Mark a review thread as resolved. It is categorised as a Write tool in the Pr Review MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pr_resolve? +

Register the Pr Review MCP server in PolicyLayer and add a rule for pr_resolve: 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 Pr Review. Nothing to install.

What risk level is pr_resolve? +

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

Can I rate-limit pr_resolve? +

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

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

pr_resolve is provided by the Pr Review MCP server (thebtf/pr-review-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.