update_module · Plane MCP: Risk & Policy

WHAT IT DOES

What update_module does on Plane

AI agents use update_module 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 update_module needs a policy

The tool performs a reversible modification to module data within a project management system. This is Write category (not Execute, as it modifies a specific entity type, not arbitrary code). Severity is medium because incorrect module updates could affect project organization and team workflows, but changes are reversible.

From the tool's definition Tool name 'update_module' indicates modification of existing module data. The verb 'update' is a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_module Rate-limited

update_module 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": {
    "update_module": {
      "limits": [
        {
          "counter": "update_module_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 update_module

What does the update_module tool do? +

update_module. 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 update_module? +

Register the Plane MCP server in PolicyLayer and add a rule for update_module: 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 update_module? +

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

Can I rate-limit update_module? +

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

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

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