gitlab_list_webhooks

THE RISK

Low Risk

Why gitlab_list_webhooks needs a policy

This tool queries and returns existing webhook configurations for a GitLab project. Listing webhooks is a read-only operation that does not modify, delete, create, or execute any resources. The only potential concern is information disclosure (knowing what webhooks exist and their destinations), but this is a legitimate administrative query with minimal blast radius if misused by an AI agent.

From the tool's definition Tool name 'gitlab_list_webhooks' combined with description 'List webhooks for a project' indicates a retrieval operation with no side effects.

Documented attack patterns abuse exactly the kind of access gitlab_list_webhooks gives an agent:

POLICY

How to control gitlab_list_webhooks

PolicyLayer is an MCP gateway — it sits between your AI agents and GitLab MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for gitlab_list_webhooks:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gitlab_list_webhooks": {}
  }
}

gitlab_list_webhooks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register GitLab MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More GitLab MCP Server tools

Destructive gitlab_delete_cicd_variable Delete a CI/CD variable Destructive gitlab_delete_trigger_token Delete a pipeline trigger token Destructive gitlab_delete_webhook Delete a webhook Execute gitlab_trigger_pipeline Trigger a pipeline run Execute gitlab_test_webhook Test a webhook Write gitlab_add_group_member Add a user to a group Write gitlab_add_project_member Add a user to a project Write gitlab_add_webhook Add a new webhook to a project

All 42 GitLab MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about gitlab_list_webhooks

What does the gitlab_list_webhooks tool do? +

List webhooks for a project. It is categorised as a Read tool in the GitLab MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gitlab_list_webhooks? +

Register the GitLab MCP Server MCP server in PolicyLayer and add a rule for gitlab_list_webhooks: 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 gitlab_list_webhooks? +

gitlab_list_webhooks is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit gitlab_list_webhooks? +

Yes. Add a rate_limit block to the gitlab_list_webhooks 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_list_webhooks completely? +

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

gitlab_list_webhooks is provided by the GitLab MCP Server MCP server (rifqi96/mcp-gitlab). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GitLab MCP Server tool call.

Start from GitLab MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →