# k1_grip

Close the grippers at force N for duration_s seconds.

Agent View of the PolicyLayer registry record for `k1_grip`. HTML page: https://policylayer.com/tools/market-execution-execution-market/k1-grip

## Facts

- Tool: `k1_grip`
- Server: Execution Market (`https://mcp.execution.market/mcp/`) — https://policylayer.com/tools/market-execution-execution-market.md
- Homepage: https://github.com/UltravioletaDAO/execution-market
- Risk category: Execute (High risk)
- Registry record: grade D, identity unverified
- Server auth posture: gated
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "k1_grip",
    "arguments": {}
  }
}
```

## Why k1_grip is rated High

This tool actuates physical hardware (grippers) with a specified force and duration, triggering a real-world physical operation. It falls under Execute as it runs an external physical action whose effects depend on the arguments (force and duration). The blast radius is high because incorrect force or duration could cause physical damage to objects, equipment, or people in the real world.

From the tool's own definition: "Close the grippers at ``force`` N for ``duration_s`` seconds."

## Use case

AI agents invoke k1_grip to trigger actions in Execution Market. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Execution Market:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "k1_grip": {
      "limits": [
        {
          "counter": "k1_grip_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Execution Market (80)

- `em_cancel_task` — Destructive — https://policylayer.com/tools/market-execution-execution-market/em-cancel-task.md
- `k1_emergency_stop` — Execute — https://policylayer.com/tools/market-execution-execution-market/k1-emergency-stop.md
- `k1_pick` — Execute — https://policylayer.com/tools/market-execution-execution-market/k1-pick.md
- `k1_place` — Execute — https://policylayer.com/tools/market-execution-execution-market/k1-place.md
- `k1_sit` — Execute — https://policylayer.com/tools/market-execution-execution-market/k1-sit.md
- `k1_stand` — Execute — https://policylayer.com/tools/market-execution-execution-market/k1-stand.md
- `k1_walk_to` — Execute — https://policylayer.com/tools/market-execution-execution-market/k1-walk-to.md
- `ows_sign_eip191` — Execute — https://policylayer.com/tools/market-execution-execution-market/ows-sign-eip191.md
- `ows_sign_erc8128_request` — Execute — https://policylayer.com/tools/market-execution-execution-market/ows-sign-erc8128-request.md
- `ows_sign_message` — Execute — https://policylayer.com/tools/market-execution-execution-market/ows-sign-message.md
- `em_accept_agent_task` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-accept-agent-task.md
- `em_approve_submission` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-approve-submission.md
- `em_assign_task` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-assign-task.md
- `em_claim_task` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-claim-task.md
- `em_create_task` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-create-task.md
- `em_escrow_authorize` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-escrow-authorize.md
- `em_escrow_charge` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-escrow-charge.md
- `em_escrow_dispute` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-escrow-dispute.md
- `em_escrow_partial_release` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-escrow-partial-release.md
- `em_escrow_refund` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-escrow-refund.md
- `em_escrow_release` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-escrow-release.md
- `em_get_payment_info` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-get-payment-info.md
- `em_publish_task` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-publish-task.md
- `em_resolve_dispute` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-resolve-dispute.md
- `em_withdraw_earnings` — Financial — https://policylayer.com/tools/market-execution-execution-market/em-withdraw-earnings.md
- `moonpay_sign_onramp_url` — Financial — https://policylayer.com/tools/market-execution-execution-market/moonpay-sign-onramp-url.md
- `ows_sign_eip3009` — Financial — https://policylayer.com/tools/market-execution-execution-market/ows-sign-eip3009.md
- `robot_close_payshell_session` — Financial — https://policylayer.com/tools/market-execution-execution-market/robot-close-payshell-session.md
- `robot_open_payshell_session` — Financial — https://policylayer.com/tools/market-execution-execution-market/robot-open-payshell-session.md
- `robot_sign_voucher_tick` — Financial — https://policylayer.com/tools/market-execution-execution-market/robot-sign-voucher-tick.md
- …and 50 more: https://policylayer.com/tools/market-execution-execution-market.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=market-execution-execution-market · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/market-execution-execution-market