# limit_order

Place a limit order on the XRPL DEX orderbook with expiration

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

## Facts

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

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

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

## Why limit_order is rated Critical

This tool places a financial order on a decentralized exchange (DEX), committing to a trade at a specified price. It directly involves financial transactions and trading obligations on the XRPL DEX. Misuse could result in unintended trades, financial loss, or unauthorized commitment of crypto assets.

From the tool's own definition: "Place a limit order on the XRPL DEX orderbook with expiration"

## Use case

AI agents use limit_order to commit financial operations through Waiaas, usually the final step of a payment, billing, or trading workflow. A call moves real money.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "limit_order": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}
```

## Other tools on Waiaas (125)

- `cancel_order` — Destructive — https://policylayer.com/tools/minhoyoo-iotrust-waiaas/cancel-order.md
- `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
- …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