gsd_plan_phase · Gsd MCP: Risk & Policy

WHAT IT DOES

What gsd_plan_phase does on Gsd

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

WHY IT NEEDS A POLICY

Why gsd_plan_phase needs a policy

This tool creates planning artifacts (task plans) for a project phase, which modifies the GSD project state reversibly. It does not execute arbitrary code, delete data, move money, or merely read data. Writing new planning structures into the project lifecycle qualifies as Write category.

From the tool's definition Tool description states 'create task plans for a phase', indicating creation of planning data within the GSD project lifecycle. The verb 'create' combined with 'task plans' confirms data generation and modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gsd_plan_phase Rate-limited

gsd_plan_phase 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": {
    "gsd_plan_phase": {
      "limits": [
        {
          "counter": "gsd_plan_phase_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 Gsd, so you can run agents against it safely.

FAQ

Questions about gsd_plan_phase

What does the gsd_plan_phase tool do? +

Research and create task plans for a phase. It is categorised as a Write tool in the Gsd MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on gsd_plan_phase? +

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

What risk level is gsd_plan_phase? +

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

Can I rate-limit gsd_plan_phase? +

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

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

gsd_plan_phase is provided by the Gsd MCP server (m0-ar/gsd-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.