delete_milestone

Delete a milestone

SERVERGitlab Mcp SOURCE@zereight/mcp-gitlab

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-zereight-gitlab-mcp/delete-milestone.md

WHAT IT DOES

What delete_milestone does on Gitlab Mcp

AI agents call delete_milestone to permanently remove resources in Gitlab Mcp, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why delete_milestone is rated Critical

Deleting a milestone is an irreversible operation that removes project planning data and cannot be undone without administrative intervention or backup restoration. This fits the Destructive category definition: 'irreversibly deletes or overwrites data, or actions that cannot be undone (delete, drop, purge, force-push)'.

From the tool's definition Tool name is 'delete_milestone' and description states 'Delete a milestone'. The verb 'delete' combined with the irreversible nature of removing a milestone from a GitLab project makes this destructive.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs delete_milestone 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 delete_milestone, this is the rule to start with:

delete_milestone Hidden

delete_milestone is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_milestone"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about delete_milestone

What does the delete_milestone tool do? +

Delete a milestone. It is categorised as a Destructive tool in the Gitlab Mcp MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_milestone? +

Register the Gitlab MCP server in PolicyLayer and add a rule for delete_milestone: 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 delete_milestone? +

delete_milestone is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_milestone? +

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

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

delete_milestone 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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