commit_files · Mcp Gitlab MCP: Risk & Policy

WHAT IT DOES

What commit_files does on Mcp Gitlab

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

WHY IT NEEDS A POLICY

Why commit_files needs a policy

This tool modifies a repository's file system and commit history. Although it can delete files, deletions occur within a commit that can be reverted in Git, making the operation reversible at the VCS level.

From the tool's definition Tool description states it performs "commit multiple file actions (create/update/delete/move/chmod) in a single commit." The actions listed—create, update, delete, move, chmod—include both reversible modifications (create, update, move, chmod) and file…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

commit_files Rate-limited

commit_files 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_files": {
      "limits": [
        {
          "counter": "commit_files_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 Mcp Gitlab, so you can run agents against it safely.

FAQ

Questions about commit_files

What does the commit_files tool do? +

Atomically commit multiple file actions (create/update/delete/move/chmod) in a single commit. dry_run=true by default. It is categorised as a Write tool in the Mcp Gitlab 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_files? +

Register the Mcp Gitlab MCP server in PolicyLayer and add a rule for commit_files: 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 Mcp Gitlab. Nothing to install.

What risk level is commit_files? +

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

Can I rate-limit commit_files? +

Yes. Add a rate_limit block to the commit_files 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_files completely? +

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

commit_files is provided by the Mcp Gitlab MCP server (wanadev/gitlab-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.