Cancel a directive you issued (only if it hasn't finished).
AI agents call cancel_directive to permanently remove resources in ATMcp — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling a directive is an irreversible action — once cancelled, the directive's in-progress state and any associated work cannot be resumed or undone. This makes it Destructive rather than Write, as the operation permanently terminates the directive's lifecycle. Severity is medium since it affects coordination/task management across agents but does not directly destroy persistent data.
From the tool's definition Cancel a directive you issued (only if it hasn't finished)
Attacks that exploit this kind of access
Cancel a directive you issued (only if it hasn't finished). It is categorised as a Destructive tool in the ATMcp MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the AT MCP server in PolicyLayer and add a rule for cancel_directive: 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 ATMcp. Nothing to install.
cancel_directive 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 cancel_directive 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 cancel_directive. 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.
cancel_directive is provided by the AT MCP server (midcheck/atmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
cancel_directive is one line of AT's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →