gears_cancelRun
Cancel a running workflow run (POST /v1/gears/runs/{id}/cancel)
This record as markdown: /tools/onesi-genesis-mcp/gears-cancelrun.md
What gears_cancelRun does on Genesis
AI agents call gears_cancelRun to permanently remove resources in Genesis, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
id | string | Yes | |
idempotency_key | string | — | Optional stable key; with it a retry returns the original result |
Parameters from the server's own tool schema.
Why gears_cancelRun is rated Critical
An AI agent that decides to call gears_cancelRun doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Genesis is gone. There is no undo for destructive operations.
Attacks that exploit this kind of access
The rule that runs gears_cancelRun safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Genesis, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gears_cancelRun, this is the rule to start with:
gears_cancelRun is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Genesis, apply this rule, and every gears_cancelRun call is checked against it from then on.
Questions about gears_cancelRun
Cancel a running workflow run (POST /v1/gears/runs/{id}/cancel). It is categorised as a Destructive tool in the Genesis MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
gears_cancelRun accepts 2 parameters: id, idempotency_key. Required: id. The full parameter table on this page comes from the server's own tool schema.
Register the Genesis MCP server in PolicyLayer and add a rule for gears_cancelRun: 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 Genesis. Nothing to install.
gears_cancelRun 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 gears_cancelRun 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 gears_cancelRun. 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.
gears_cancelRun is provided by the Genesis MCP server (@onesi/genesis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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