execute_graphql

Execute a GitLab GraphQL query

SERVERGitlab Mcp SOURCE@zereight/mcp-gitlab

High RISK CLASS

Category Execute

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-zereight-gitlab-mcp/execute-graphql.md

WHAT IT DOES

What execute_graphql does on Gitlab Mcp

AI agents invoke execute_graphql to trigger actions in Gitlab Mcp. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why execute_graphql is rated High

This tool allows execution of arbitrary GraphQL operations against GitLab. While GraphQL itself can be used for read-only queries, the 'execute' capability here permits mutations and complex operations that can create, modify, or delete GitLab resources (projects, issues, merge requests, pipelines, etc.).

From the tool's definition Tool description states 'Execute a GitLab GraphQL query'. The verb 'execute' combined with the ability to run arbitrary GraphQL queries means the tool can trigger operations whose effects depend entirely on the query arguments.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs execute_graphql safely

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

execute_graphql Rate-limited

execute_graphql stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "execute_graphql": {
      "limits": [
        {
          "counter": "execute_graphql_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about execute_graphql

What does the execute_graphql tool do? +

Execute a GitLab GraphQL query. It is categorised as a Execute tool in the Gitlab Mcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute_graphql? +

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

What risk level is execute_graphql? +

execute_graphql is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit execute_graphql? +

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

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

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

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