next_stage · Proofhub MCP: Risk & Policy

WHAT IT DOES

What next_stage does on Proofhub

AI agents use next_stage 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 next_stage needs a policy

This tool modifies the state of a task by moving it to the next stage on the board. This is a reversible write operation (the task can be moved back), not destructive. Misuse could cause workflow disruption by prematurely advancing tasks, hence medium severity.

From the tool's definition Automatically advance a task one stage forward on the board

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

next_stage Rate-limited

next_stage 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": {
    "next_stage": {
      "limits": [
        {
          "counter": "next_stage_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 next_stage

What does the next_stage tool do? +

Automatically advance a task one stage forward on the board (inferred from stage ids; stageOrder context overrides order). 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 next_stage? +

Register the Proofhub MCP server in PolicyLayer and add a rule for next_stage: 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 next_stage? +

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

Can I rate-limit next_stage? +

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

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

next_stage 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.