Critical Risk →

pm_cancel_all

Cancel all active Polymarket CLOB orders optionally by market

How to control pm_cancel_all ↓

What pm_cancel_all does on Waiaas

AI agents call pm_cancel_all to permanently remove resources in Waiaas — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

Why pm_cancel_all needs a policy

This tool destroys active trading orders in bulk, which cannot be undone. While not involving fund movement itself, canceling all orders is a destructive financial action with high blast radius if triggered unintentionally by an AI agent—the user loses active market positions and any associated trading strategy. The 'all' parameter with no granular control amplifies severity.

From the tool's definition 'Cancel all active Polymarket CLOB orders' - this tool irreversibly cancels all active orders without reversal capability. The use of 'cancel all' indicates bulk destructive action on financial positions.

Risk signalsBulk/mass operation — affects multiple targets

Documented attack patterns abuse exactly the kind of access pm_cancel_all gives an agent:

How to control pm_cancel_all

PolicyLayer is an MCP gateway — it sits between your AI agents and Waiaas, and nothing reaches the server without passing your rules. This is the rule we recommend for pm_cancel_all:

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

pm_cancel_all disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

  1. Create a free account and register Waiaas — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RESTRICT THIS TOOL →

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Related tools and policies

Go deeper

Questions about pm_cancel_all

What does the pm_cancel_all tool do? +

Cancel all active Polymarket CLOB orders optionally by market. It is categorised as a Destructive tool in the Waiaas 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 pm_cancel_all? +

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

What risk level is pm_cancel_all? +

pm_cancel_all 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 pm_cancel_all? +

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

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

pm_cancel_all is provided by the Waiaas MCP server (minhoyoo-iotrust/waiaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Waiaas tool call.

Start from Waiaas, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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126 Waiaas tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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