create_milestone · Mcp Github Pm MCP: Risk & Policy

WHAT IT DOES

What create_milestone does on Mcp Github Pm

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

WHY IT NEEDS A POLICY

Why create_milestone needs a policy

Creating a milestone is a reversible write operation that does not delete data, execute arbitrary code, or cause financial impact. The blast radius is minimal—milestones can be edited or deleted, and their creation does not affect deployed systems or cause data loss. Severity is low because misuse would result in organizational clutter rather than significant harm.

From the tool's definition Tool name 'create_milestone' and description 'Create a milestone for tracking issue groups' indicate data creation. Milestones are organizational metadata in GitHub that group and track issues toward release goals.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_milestone Rate-limited

create_milestone 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": {
    "create_milestone": {
      "limits": [
        {
          "counter": "create_milestone_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 Mcp Github Pm, so you can run agents against it safely.

FAQ

Questions about create_milestone

What does the create_milestone tool do? +

Create a milestone for tracking issue groups. It is categorised as a Write tool in the Mcp Github Pm MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_milestone? +

Register the Mcp Github Pm MCP server in PolicyLayer and add a rule for create_milestone: 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 Mcp Github Pm. Nothing to install.

What risk level is create_milestone? +

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

Can I rate-limit create_milestone? +

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

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

create_milestone is provided by the Mcp Github Pm MCP server (lordbasilaiassistant-sudo/mcp-github-pm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.