gitlab_create_branch

A write tool on the Gitlab MCP server.

SERVERGitlab SOURCEdkeeno/gitlab-mcp-server

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/dkeeno-gitlab-mcp-server/gitlab-create-branch.md

WHAT IT DOES

What gitlab_create_branch does on Gitlab

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

RISK

Why gitlab_create_branch is rated Medium

Creating a branch is a write operation that modifies repository state by adding a new branch reference. This is reversible (the branch can be deleted) and does not execute code, delete data irreversibly, or move funds. It fits the Write category: creates or modifies data reversibly. Confidence is moderate due to empty description, but the tool name is explicit enough to classify reliably.

From the tool's definition Tool name 'gitlab_create_branch' indicates creation of a git branch, a reversible modification of repository structure. Description is empty, but naming and GitLab DevOps context indicate write-level capability.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gitlab_create_branch safely

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

gitlab_create_branch Rate-limited

gitlab_create_branch 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": {
    "gitlab_create_branch": {
      "limits": [
        {
          "counter": "gitlab_create_branch_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 Gitlab, apply this rule, and every gitlab_create_branch call is checked against it from then on.

FAQ

Questions about gitlab_create_branch

What does the gitlab_create_branch tool do? +

gitlab_create_branch is a write tool on the Gitlab MCP server. It is categorised as a Write tool in the 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 gitlab_create_branch? +

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

What risk level is gitlab_create_branch? +

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

Can I rate-limit gitlab_create_branch? +

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

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

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

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