neuron_cancel_approval
Cancel a still-pending approval (e.g. the upstream action was aborted). Fires the approval.cancelled callback. Requires a bot API key.
This record as markdown: /tools/io-github-conquext-neuron/neuron-cancel-approval.md
What neuron_cancel_approval does on Neuron
AI agents call neuron_cancel_approval to permanently remove resources in Neuron, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
apiKey | string | Yes | Bot API key with 'nrn_' prefix for authentication |
reason | string | — | Optional cancellation reason |
approvalId | string | Yes | The approval request id (UUID) to cancel |
Parameters from the server's own tool schema.
Why neuron_cancel_approval is rated Critical
An AI agent that decides to call neuron_cancel_approval doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Neuron is gone. There is no undo for destructive operations.
Risk signalsHandles credentials or secrets (apiKey)
Attacks that exploit this kind of access
The rule that runs neuron_cancel_approval safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Neuron, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For neuron_cancel_approval, this is the rule to start with:
neuron_cancel_approval 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 Neuron, apply this rule, and every neuron_cancel_approval call is checked against it from then on.
Questions about neuron_cancel_approval
Cancel a still-pending approval (e.g. the upstream action was aborted). Fires the approval.cancelled callback. Requires a bot API key. It is categorised as a Destructive tool in the Neuron MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
neuron_cancel_approval accepts 3 parameters: apiKey, reason, approvalId. Required: apiKey, approvalId. The full parameter table on this page comes from the server's own tool schema.
Register the Neuron MCP server in PolicyLayer and add a rule for neuron_cancel_approval: 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 Neuron. Nothing to install.
neuron_cancel_approval 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 neuron_cancel_approval 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 neuron_cancel_approval. 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.
neuron_cancel_approval is provided by the Neuron MCP server (neuron-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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