revert_commit · GitLab MCP Server MCP: Risk & Policy

WHAT IT DOES

What revert_commit does on GitLab MCP Server

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

WHY IT NEEDS A POLICY

Why revert_commit needs a policy

Reverting a commit creates a new commit that undoes the changes of a previous commit. This is technically reversible (you can revert the revert), so it falls under Write rather than Destructive. However, it has high severity because it modifies repository history and can affect shared branches, potentially disrupting other developers and CI/CD pipelines.

From the tool's definition 'Revert a commit' - reverts a specific commit by creating a new commit that undoes the changes

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

revert_commit Rate-limited

revert_commit 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": {
    "revert_commit": {
      "limits": [
        {
          "counter": "revert_commit_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 GitLab MCP Server, so you can run agents against it safely.

FAQ

Questions about revert_commit

What does the revert_commit tool do? +

Revert a commit. It is categorised as a Write tool in the GitLab 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 revert_commit? +

Register the GitLab MCP Server MCP server in PolicyLayer and add a rule for revert_commit: 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 GitLab MCP Server. Nothing to install.

What risk level is revert_commit? +

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

Can I rate-limit revert_commit? +

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

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

revert_commit is provided by the GitLab MCP Server MCP server (skmprb/gitlab-clone-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.