jenkins_create_job · Mcp Jenkins MCP: Risk & Policy

WHAT IT DOES

What jenkins_create_job does on Mcp Jenkins

AI agents use jenkins_create_job to create or update resources in Mcp Jenkins — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Jenkins environment.

WHY IT NEEDS A POLICY

Why jenkins_create_job needs a policy

This tool creates a new Jenkins job, which is a reversible write operation (the job can be deleted via jenkins_delete_job also present on this server). However, given that jobs in Jenkins can trigger arbitrary builds and execute code, creating a malicious job could enable significant harm downstream.

From the tool's definition Tool name: 'jenkins_create_job'; description: 'Create a new Jenkins job from an XML configuration' — the verb 'Create' and explicit mention of job creation indicate persistent data modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

jenkins_create_job Rate-limited

jenkins_create_job stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "jenkins_create_job": {
      "limits": [
        {
          "counter": "jenkins_create_job_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about jenkins_create_job

What does the jenkins_create_job tool do? +

Create a new Jenkins job from an XML configuration. It is categorised as a Write tool in the Mcp Jenkins MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on jenkins_create_job? +

Register the Mcp Jenkins MCP server in PolicyLayer and add a rule for jenkins_create_job: 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 Mcp Jenkins. Nothing to install.

What risk level is jenkins_create_job? +

jenkins_create_job is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit jenkins_create_job? +

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

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

jenkins_create_job is provided by the Mcp Jenkins MCP server (@kud/mcp-jenkins). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.