pipeline_resume · Kiln MCP: Risk & Policy

WHAT IT DOES

What pipeline_resume does on Kiln

AI agents invoke pipeline_resume to trigger actions in Kiln. 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 pipeline_resume needs a policy

This tool triggers execution of an ongoing 3D printing pipeline by resuming a paused process. It initiates external physical operations (3D printer activity), making it an Execute-category tool. Misuse could cause unintended printer operation, wasted material, or equipment issues.

From the tool's definition Resume a paused pipeline from where it stopped

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pipeline_resume Rate-limited

pipeline_resume 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": {
    "pipeline_resume": {
      "limits": [
        {
          "counter": "pipeline_resume_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 Kiln, so you can run agents against it safely.

FAQ

Questions about pipeline_resume

What does the pipeline_resume tool do? +

Resume a paused pipeline from where it stopped. It is categorised as a Execute tool in the Kiln MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on pipeline_resume? +

Register the Kiln MCP server in PolicyLayer and add a rule for pipeline_resume: 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 Kiln. Nothing to install.

What risk level is pipeline_resume? +

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

Can I rate-limit pipeline_resume? +

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

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

pipeline_resume is provided by the Kiln MCP server (codeofaxel/Kiln). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.