reopen · Proofhub MCP: Risk & Policy

WHAT IT DOES

What reopen does on Proofhub

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

WHY IT NEEDS A POLICY

Why reopen needs a policy

This tool modifies the state of a task by marking it as incomplete/reopened. This is a reversible write operation (the task was completed, now it's uncompleted), with low blast radius since it only affects a single task's status and can be re-completed if needed.

From the tool's definition Reopen (un-complete) a task — reverses a completion state, modifying task data reversibly

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

reopen Rate-limited

reopen 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": {
    "reopen": {
      "limits": [
        {
          "counter": "reopen_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 Proofhub, so you can run agents against it safely.

FAQ

Questions about reopen

What does the reopen tool do? +

Reopen (un-complete) a task. project and todolist default to context. It is categorised as a Write tool in the Proofhub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on reopen? +

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

What risk level is reopen? +

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

Can I rate-limit reopen? +

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

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

reopen is provided by the Proofhub MCP server (yashmody/proofhub-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.