Delete a milestone by name. Requires TICKET_ADMIN permission. Warning: This cannot be undone.
AI agents call milestone_delete to permanently remove resources in Trac — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes milestones, which is an irreversible operation that destroys data. Destructive takes priority over Write and all lower categories. Severity is high (not critical) because the blast radius is typically limited to milestone metadata; however, an AI agent could cause significant project management disruption by deleting important milestones.
From the tool's definition Tool description explicitly states 'Delete a milestone by name' and includes warning 'This cannot be undone.' The name 'milestone_delete' directly indicates deletion. The function performs irreversible data removal.
Attacks that exploit this kind of access
Delete a milestone by name. Requires TICKET_ADMIN permission. Warning: This cannot be undone. It is categorised as a Destructive tool in the Trac MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Trac MCP server in PolicyLayer and add a rule for milestone_delete: 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 Trac. Nothing to install.
milestone_delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the milestone_delete 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 milestone_delete. 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.
milestone_delete is provided by the Trac MCP server (nerpatech/trac-mcp-server). 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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