git_revert · Git MCP: Risk & Policy

WHAT IT DOES

What git_revert does on Git

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

WHY IT NEEDS A POLICY

Why git_revert needs a policy

git_revert creates a new commit that undoes changes from a previous commit, but does not delete or rewrite history. This is a reversible write operation — the revert itself can be reverted. Severity is medium because it modifies repository state and can affect collaborators, but it does not irreversibly destroy data.

From the tool's definition Revert a commit without rewriting history

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

git_revert Rate-limited

git_revert 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_revert": {
      "limits": [
        {
          "counter": "git_revert_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, so you can run agents against it safely.

FAQ

Questions about git_revert

What does the git_revert tool do? +

Revert a commit without rewriting history. It is categorised as a Write tool in the Git 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_revert? +

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

What risk level is git_revert? +

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

Can I rate-limit git_revert? +

Yes. Add a rate_limit block to the git_revert 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_revert completely? +

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

git_revert is provided by the Git MCP server (selfagency/git-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.