jules_wait_for_completion · Jules MCP Server MCP

WHAT IT DOES

What jules_wait_for_completion does on Jules MCP Server

AI agents invoke jules_wait_for_completion to trigger actions in Jules MCP Server. 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 jules_wait_for_completion needs a policy

This tool doesn't directly read data (Read), create/modify data (Write), delete data (Destructive), or move money (Financial). However, it actively monitors and participates in the lifecycle of an automated coding execution task. While primarily a polling/waiting action, it's classified as Execute because it integrates with a system that runs code execution operations.

From the tool's definition Tool name 'jules_wait_for_completion' and description indicate it waits for completion of a Jules session. In context of this MCP server, Jules sessions execute automated coding tasks including code reviews and GitHub synchronization.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

jules_wait_for_completion Rate-limited

jules_wait_for_completion 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": {
    "jules_wait_for_completion": {
      "limits": [
        {
          "counter": "jules_wait_for_completion_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 Jules MCP Server, so you can run agents against it safely.

FAQ

Questions about jules_wait_for_completion

What does the jules_wait_for_completion tool do? +

Waits for a Jules session to complete (success, failure, or cancellation). It is categorised as a Execute tool in the Jules MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on jules_wait_for_completion? +

Register the Jules MCP Server MCP server in PolicyLayer and add a rule for jules_wait_for_completion: 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 Jules MCP Server. Nothing to install.

What risk level is jules_wait_for_completion? +

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

Can I rate-limit jules_wait_for_completion? +

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

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

jules_wait_for_completion is provided by the Jules MCP Server MCP server (streetquant/jules-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.