commit_message

Extra detail for merge commit (string, optional)

SERVERGitHub SOURCEoci:ghcr.io/aifity/omnigit-mcp:0.5.0

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-aifity-omnigit-mcp/commit-message.md

WHAT IT DOES

What commit_message does on GitHub

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

RISK

Why commit_message is rated Medium

This tool creates a new commit message object, which is a reversible write operation. It does not delete data (Destructive), execute arbitrary code (Execute), or transfer funds (Financial). While merge commits modify the repository state, they are version-controlled and can be reverted, making this a Write rather than Destructive action.

From the tool's definition Tool modifies git history by creating a merge commit with a custom commit message. The description 'Extra detail for merge commit' indicates it creates or records new data (the commit message) as part of a merge operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs commit_message safely

PolicyLayer is an MCP gateway: it sits between your AI agents and GitHub, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For commit_message, this is the rule to start with:

commit_message Rate-limited

commit_message 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_message": {
      "limits": [
        {
          "counter": "commit_message_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect GitHub, apply this rule, and every commit_message call is checked against it from then on.

FAQ

Questions about commit_message

What does the commit_message tool do? +

Extra detail for merge commit (string, optional). It is categorised as a Write tool in the GitHub 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_message? +

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

What risk level is commit_message? +

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

Can I rate-limit commit_message? +

Yes. Add a rate_limit block to the commit_message 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_message completely? +

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

commit_message is provided by the GitHub MCP server (oci:ghcr.io/aifity/omnigit-mcp:0.5.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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