Critical Risk →

forge_cancel

Cancel a running Forge optimization job. Credits may be refunded if less than 20% of iterations completed.

Part of the Forge server.

forge_cancel can permanently delete data in Forge, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents may call forge_cancel to permanently remove or destroy resources in Forge. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call forge_cancel in a loop, permanently destroying resources in Forge. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.

Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "forge_cancel"
  ]
}

See the full Forge policy for all 7 tools.

Get this rule live on your own Forge server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access forge_cancel gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so forge_cancel only ever does what you allow.

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Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.

What does the forge_cancel tool do? +

Cancel a running Forge optimization job. Credits may be refunded if less than 20% of iterations completed.. It is categorised as a Destructive tool in the Forge 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 forge_cancel? +

Register the Forge MCP server in PolicyLayer and add a rule for forge_cancel: 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 Forge. Nothing to install.

What risk level is forge_cancel? +

forge_cancel 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 forge_cancel? +

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

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

forge_cancel is provided by the Forge MCP server (@rightnow/forge-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Forge tool call.

Deterministic rules across all 7 Forge tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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