List milestones at the project level. On GitLab CE/Free, milestones are project-scoped and this is the only way to list them.
AI agents call list_project_milestones to retrieve information from Mcp Gitlab without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates milestone data from a GitLab project. It performs no side effects, creates no new resources, modifies no data, executes no operations, and deletes nothing. The worst-case misuse is information leakage about project planning; blast radius is minimal. Confidence is high because the description explicitly uses 'list,' a canonical Read operation verb.
From the tool's definition Tool name is 'list_project_milestones' and description states 'List milestones at the project level.' The verb 'list' indicates a read-only query operation that retrieves and displays existing milestone data without modification.
Attacks that exploit this kind of access
List milestones at the project level. On GitLab CE/Free, milestones are project-scoped and this is the only way to list them. It is categorised as a Read tool in the Mcp Gitlab MCP Server, which means it retrieves data without modifying state.
Register the Mcp Gitlab MCP server in PolicyLayer and add a rule for list_project_milestones: 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 Mcp Gitlab. Nothing to install.
list_project_milestones 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 list_project_milestones 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 list_project_milestones. 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.
list_project_milestones is provided by the Mcp Gitlab MCP server (wanadev/gitlab-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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