# gitlab_merge_mr

A write tool on the Gitlab MCP server.

Agent View of the PolicyLayer registry record for `gitlab_merge_mr`. HTML page: https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-merge-mr

## Facts

- Tool: `gitlab_merge_mr`
- Server: Gitlab (`dkeeno/gitlab-mcp-server`) — https://policylayer.com/tools/dkeeno-gitlab-mcp-server.md
- Homepage: https://github.com/dkeeno/gitlab-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "gitlab_merge_mr",
    "arguments": {}
  }
}
```

## Why gitlab_merge_mr is rated Medium

Merging a merge request modifies the target branch by incorporating new code, which is a reversible write operation. While the tool description is empty, the name and server context strongly indicate code integration capability. This could cause significant disruption if misused (e.g., merging untested or malicious code to production branches), but the change can be reverted, making it Write rather than Destructive.

From the tool's own definition: "Tool name 'gitlab_merge_mr' indicates merging a merge request. The server description mentions 'merge requests' as part of GitLab DevOps automation. Merging MRs creates/modifies code in the repository and triggers CI/CD pipelines."

## Use case

AI agents use gitlab_merge_mr 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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Gitlab:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "gitlab_merge_mr": {
      "limits": [
        {
          "counter": "gitlab_merge_mr_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Gitlab (55)

- `gitlab_delete_branch` — Destructive — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-delete-branch.md
- `gitlab_delete_ci_variable` — Destructive — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-delete-ci-variable.md
- `gitlab_delete_group_variable` — Destructive — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-delete-group-variable.md
- `gitlab_revoke_group_access_token` — Destructive — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-revoke-group-access-token.md
- `gitlab_revoke_personal_access_token` — Destructive — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-revoke-personal-access-token.md
- `gitlab_revoke_project_access_token` — Destructive — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-revoke-project-access-token.md
- `gitlab_cancel_pipeline` — Execute — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-cancel-pipeline.md
- `gitlab_register_local_runner` — Execute — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-register-local-runner.md
- `gitlab_retry_pipeline` — Execute — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-retry-pipeline.md
- `gitlab_trigger_pipeline` — Execute — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-trigger-pipeline.md
- `analyze_pipeline_failure` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/analyze-pipeline-failure.md
- `gitlab_clone_repo` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-clone-repo.md
- `gitlab_get_file` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-file.md
- `gitlab_get_job_logs` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-job-logs.md
- `gitlab_get_mr_diff` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-mr-diff.md
- `gitlab_get_pipeline_artifacts` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-pipeline-artifacts.md
- `gitlab_get_pipeline_jobs` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-pipeline-jobs.md
- `gitlab_get_pipeline_status` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-pipeline-status.md
- `gitlab_get_project` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-project.md
- `gitlab_get_runner_status` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-runner-status.md
- `gitlab_get_security_report` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-security-report.md
- `gitlab_get_security_summary` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-get-security-summary.md
- `gitlab_list_branches` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-branches.md
- `gitlab_list_ci_variables` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-ci-variables.md
- `gitlab_list_group_access_tokens` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-group-access-tokens.md
- `gitlab_list_group_variables` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-group-variables.md
- `gitlab_list_groups` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-groups.md
- `gitlab_list_mrs` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-mrs.md
- `gitlab_list_personal_access_tokens` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-personal-access-tokens.md
- `gitlab_list_pipelines` — Read — https://policylayer.com/tools/dkeeno-gitlab-mcp-server/gitlab-list-pipelines.md
- …and 25 more: https://policylayer.com/tools/dkeeno-gitlab-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=dkeeno-gitlab-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dkeeno-gitlab-mcp-server