git_create_patch · LocalAnt MCP: Risk & Policy

WHAT IT DOES

What git_create_patch does on LocalAnt

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

WHY IT NEEDS A POLICY

Why git_create_patch needs a policy

This tool creates a patch file representing uncommitted or staged changes in a git repository. While patches are typically reversible (can be discarded or not applied), the act of creating and storing a patch file is a write operation that produces new data artifacts.

From the tool's definition 'Create a patch of current changes' — generates a new artifact (patch file) from repository state, modifying or creating data in the working directory or filesystem.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

git_create_patch Rate-limited

git_create_patch 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": {
    "git_create_patch": {
      "limits": [
        {
          "counter": "git_create_patch_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 LocalAnt, so you can run agents against it safely.

FAQ

Questions about git_create_patch

What does the git_create_patch tool do? +

Create a patch of current changes. It is categorised as a Write tool in the LocalAnt MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on git_create_patch? +

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

What risk level is git_create_patch? +

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

Can I rate-limit git_create_patch? +

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

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

git_create_patch is provided by the LocalAnt MCP server (yuga-hashimoto/localant). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.