# cancel_order

Cancel an existing XRPL DEX offer by its sequence number

Agent View of the PolicyLayer registry record for `cancel_order`. HTML page: https://policylayer.com/tools/minhoyoo-iotrust-waiaas/cancel-order

## Facts

- Tool: `cancel_order`
- Server: Waiaas (`minhoyoo-iotrust/waiaas`) — https://policylayer.com/tools/minhoyoo-iotrust-waiaas.md
- Homepage: https://github.com/minhoyoo-iotrust/WAIaaS
- Risk category: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "cancel_order",
    "arguments": {}
  }
}
```

## Why cancel_order is rated Critical

Cancelling an active DEX order is an irreversible action that removes a financial commitment. While it does not destroy data in the database sense, it permanently voids an active market position, which qualifies as destructive in the financial operations domain. The severity is high because misuse by an AI agent could cancel legitimate active orders, causing missed trading opportunities and financial loss.

From the tool's own definition: "Tool description states 'Cancel an existing XRPL DEX offer' — cancellation irreversibly terminates an active financial order. The term 'cancel' combined with 'offer' on a DEX indicates removal of a live market position that cannot be undone."

## Use case

AI agents call cancel_order 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.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Waiaas:

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "cancel_order"
  ]
}
```

## Other tools on Waiaas (125)

- `hl_cancel_order` — Destructive — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/hl-cancel-order.md
- `pm_cancel_all` — Destructive — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/pm-cancel-all.md
- `pm_cancel_order` — Destructive — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/pm-cancel-order.md
- `remove_liquidity` — Destructive — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/remove-liquidity.md
- `build_userop` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/build-userop.md
- `call_contract` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/call-contract.md
- `encode_calldata` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/encode-calldata.md
- `execute` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/execute.md
- `hl_set_leverage` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/hl-set-leverage.md
- `hl_spot_cancel` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/hl-spot-cancel.md
- `request_validation` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/request-validation.md
- `sign_message` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/sign-message.md
- `sign_transaction` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/sign-transaction.md
- `sign_userop` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/sign-userop.md
- `simulate_transaction` — Execute — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/simulate-transaction.md
- `aave_borrow` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/aave-borrow.md
- `aave_repay` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/aave-repay.md
- `aave_supply` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/aave-supply.md
- `aave_withdraw` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/aave-withdraw.md
- `bridge` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/bridge.md
- `buy_pt` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/buy-pt.md
- `buy_yt` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/buy-yt.md
- `cross_swap` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/cross-swap.md
- `dex_swap` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/dex-swap.md
- `drift_close_position` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/drift-close-position.md
- `drift_modify_position` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/drift-modify-position.md
- `drift_open_position` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/drift-open-position.md
- `drift_withdraw_margin` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/drift-withdraw-margin.md
- `erc8128_sign_request` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/erc8128-sign-request.md
- `execute_action` — Financial — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/execute-action.md
- …and 95 more: https://policylayer.com/tools/minhoyoo-iotrust-waiaas.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=minhoyoo-iotrust-waiaas · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/minhoyoo-iotrust-waiaas