plane-cycle-create · Plane MCP: Risk & Policy

WHAT IT DOES

What plane-cycle-create does on Plane

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

WHY IT NEEDS A POLICY

Why plane-cycle-create needs a policy

This tool creates a new cycle/sprint, which is a reversible modification to project data. It does not execute arbitrary code, delete data irreversibly, or involve financial operations. The blast radius is limited to creating organizational structure within a project, which can be undone by deletion.

From the tool's definition Tool name 'plane-cycle-create' and description 'Create a new cycle (sprint) in a project' explicitly indicate creation of a new resource.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

plane-cycle-create Rate-limited

plane-cycle-create 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": {
    "plane-cycle-create": {
      "limits": [
        {
          "counter": "plane-cycle-create_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 Plane, so you can run agents against it safely.

FAQ

Questions about plane-cycle-create

What does the plane-cycle-create tool do? +

Create a new cycle (sprint) in a project. It is categorised as a Write tool in the Plane MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on plane-cycle-create? +

Register the Plane MCP server in PolicyLayer and add a rule for plane-cycle-create: 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 Plane. Nothing to install.

What risk level is plane-cycle-create? +

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

Can I rate-limit plane-cycle-create? +

Yes. Add a rate_limit block to the plane-cycle-create 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 plane-cycle-create completely? +

Set action: deny in the PolicyLayer policy for plane-cycle-create. 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 plane-cycle-create? +

plane-cycle-create is provided by the Plane MCP server (philipvanlewis/plane-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.