create_git_tag · Git MCP: Risk & Policy

WHAT IT DOES

What create_git_tag does on Git MCP

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

WHY IT NEEDS A POLICY

Why create_git_tag needs a policy

Creating a git tag modifies repository state by adding a new tag object and updating refs. This is reversible (tags can be deleted or recreated), so it qualifies as Write rather than Destructive.

From the tool's definition Tool name 'create_git_tag' and description 'Create a new git tag in the repository' indicate creation of a new artifact (a git tag) in a repository.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_git_tag Rate-limited

create_git_tag 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": {
    "create_git_tag": {
      "limits": [
        {
          "counter": "create_git_tag_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Git MCP, so you can run agents against it safely.

FAQ

Questions about create_git_tag

What does the create_git_tag tool do? +

Create a new git tag in the repository. It is categorised as a Write tool in the Git MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_git_tag? +

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

What risk level is create_git_tag? +

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

Can I rate-limit create_git_tag? +

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

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

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