get_merge_request
Get details of a merge request (mergeRequestIid or branchName required). Set include_summaries=true for deployment/commit/approval summaries
This record as markdown: /tools/io-github-zereight-gitlab-mcp/get-merge-request.md
What get_merge_request does on Gitlab Mcp
AI agents call get_merge_request to retrieve information from Gitlab Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_merge_request is rated Low
This tool retrieves and queries data about merge requests without modifying, deleting, or executing any operations. It is a straightforward read operation with no capability to change state, execute code, or trigger external actions. Blast radius is minimal—misuse would only expose existing merge request information.
From the tool's definition Tool name is 'get_merge_request' and description states 'Get details of a merge request', indicating a retrieval operation. Parameters focus on fetching summaries (deployment/commit/approval), which are read-only queries with no side effects.
Attacks that exploit this kind of access
The rule that runs get_merge_request 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 get_merge_request, this is the rule to start with:
get_merge_request is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Gitlab Mcp, apply this rule, and every get_merge_request call is checked against it from then on.
Questions about get_merge_request
Get details of a merge request (mergeRequestIid or branchName required). Set include_summaries=true for deployment/commit/approval summaries. It is categorised as a Read tool in the Gitlab Mcp MCP Server, which means it retrieves data without modifying state.
Register the Gitlab MCP server in PolicyLayer and add a rule for get_merge_request: 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.
get_merge_request is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_merge_request 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.
Set action: deny in the PolicyLayer policy for get_merge_request. 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.
get_merge_request 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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