gh_gist_create · GitHub CLI MCP Server MCP: Risk & Policy

WHAT IT DOES

What gh_gist_create does on GitHub CLI MCP Server

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

WHY IT NEEDS A POLICY

Why gh_gist_create needs a policy

Creating a gist is a Write operation—it creates new content that is reversible (gists can be deleted). The severity is medium because while gist creation itself is not destructive, it could be misused to create unwanted public code snippets, spam, or expose sensitive information. The confidence is high because the tool name and description directly indicate a create operation with no ambiguity.

From the tool's definition Tool name 'gh_gist_create' and description 'Create a new gist' indicate creation of new data in GitHub's gist service.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gh_gist_create Rate-limited

gh_gist_create 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": {
    "gh_gist_create": {
      "limits": [
        {
          "counter": "gh_gist_create_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 GitHub CLI MCP Server, so you can run agents against it safely.

FAQ

Questions about gh_gist_create

What does the gh_gist_create tool do? +

Create a new gist. It is categorised as a Write tool in the GitHub CLI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on gh_gist_create? +

Register the GitHub CLI MCP Server MCP server in PolicyLayer and add a rule for gh_gist_create: 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 GitHub CLI MCP Server. Nothing to install.

What risk level is gh_gist_create? +

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

Can I rate-limit gh_gist_create? +

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

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

gh_gist_create is provided by the GitHub CLI MCP Server MCP server (munch-group/gh-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.