commit_changes · Git MCP Assistant Tool MCP: Risk & Policy

WHAT IT DOES

What commit_changes does on Git MCP Assistant Tool

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

WHY IT NEEDS A POLICY

Why commit_changes needs a policy

The commit_changes tool creates new commit objects in the repository's history, permanently recording staged changes. This is a Write operation because it irreversibly records data in the repository timeline, though commits themselves can be undone via revert/reset operations.

From the tool's definition Tool description states 'Stage and commit changes' - commit operations create and modify repository history, which is reversible (commits can be reverted, amended, or reset).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

commit_changes Rate-limited

commit_changes 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": {
    "commit_changes": {
      "limits": [
        {
          "counter": "commit_changes_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 Git MCP Assistant Tool, so you can run agents against it safely.

FAQ

Questions about commit_changes

What does the commit_changes tool do? +

Stage and commit changes. It is categorised as a Write tool in the Git MCP Assistant Tool MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on commit_changes? +

Register the Git MCP Assistant Tool MCP server in PolicyLayer and add a rule for commit_changes: 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 Git MCP Assistant Tool. Nothing to install.

What risk level is commit_changes? +

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

Can I rate-limit commit_changes? +

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

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

commit_changes is provided by the Git MCP Assistant Tool MCP server (kamiwaza-drew/tool-git). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.