deal_cancel
Withdraws an open negotiation. Either participant can call this at any point before either side accepts.
This record as markdown: /tools/com-focxle-afos/deal-cancel.md
What deal_cancel does on AFOS — Agentic Financial OS
AI agents call deal_cancel to permanently remove resources in AFOS — Agentic Financial OS, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
negotiation_id | string | Yes |
Parameters from the server's own tool schema.
Why deal_cancel is rated Critical
Cancelling a negotiation is irreversible and cannot be undone once withdrawn.
From the tool's definition Withdraws an open negotiation... before either side accepts
Attacks that exploit this kind of access
The rule that runs deal_cancel safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AFOS — Agentic Financial OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For deal_cancel, this is the rule to start with:
deal_cancel 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 AFOS — Agentic Financial OS, apply this rule, and every deal_cancel call is checked against it from then on.
Questions about deal_cancel
Withdraws an open negotiation. Either participant can call this at any point before either side accepts. It is categorised as a Destructive tool in the AFOS — Agentic Financial OS MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
deal_cancel accepts 1 parameter: negotiation_id. Required: negotiation_id. The full parameter table on this page comes from the server's own tool schema.
Register the AFOS — Agentic Financial OS MCP server in PolicyLayer and add a rule for deal_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 AFOS — Agentic Financial OS. Nothing to install.
deal_cancel 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 deal_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.
Set action: deny in the PolicyLayer policy for deal_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.
deal_cancel is provided by the AFOS — Agentic Financial OS MCP server (https://focxle.com/api/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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