k1_grip · Execution Market MCP: Risk & Policy

WHAT IT DOES

What k1_grip does on Execution Market

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.

WHY IT NEEDS A POLICY

Why k1_grip needs a policy

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 definition Close the grippers at ``force`` N for ``duration_s`` seconds.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

k1_grip Rate-limited

k1_grip stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Execution Market, so you can run agents against it safely.

FAQ

Questions about k1_grip

What does the k1_grip tool do? +

Close the grippers at force N for duration_s seconds. It is categorised as a Execute tool in the Execution Market MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on k1_grip? +

Register the Execution Market MCP server in PolicyLayer and add a rule for k1_grip: 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 Execution Market. Nothing to install.

What risk level is k1_grip? +

k1_grip is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit k1_grip? +

Yes. Add a rate_limit block to the k1_grip 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 k1_grip completely? +

Set action: deny in the PolicyLayer policy for k1_grip. 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 k1_grip? +

k1_grip is provided by the Execution Market MCP server (https://mcp.execution.market/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.