gsd_scaffold · Gsd MCP: Risk & Policy

WHAT IT DOES

What gsd_scaffold does on Gsd

AI agents use gsd_scaffold 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_scaffold needs a policy

This tool creates reversible document templates within a project lifecycle framework. It does not execute arbitrary code, delete data, move money, or trigger external side effects beyond writing templated files. The blast radius of misuse is limited to unnecessary document creation, which is easily undone or cleaned up.

From the tool's definition Tool description states 'Create GSD document templates' — the word 'Create' indicates generation and storage of new data artifacts (context, uat, verification, phase-dir templates).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gsd_scaffold Rate-limited

gsd_scaffold 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_scaffold": {
      "limits": [
        {
          "counter": "gsd_scaffold_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_scaffold

What does the gsd_scaffold tool do? +

Create GSD document templates (context, uat, verification, phase-dir). 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_scaffold? +

Register the Gsd MCP server in PolicyLayer and add a rule for gsd_scaffold: 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_scaffold? +

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

Can I rate-limit gsd_scaffold? +

Yes. Add a rate_limit block to the gsd_scaffold 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_scaffold completely? +

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

gsd_scaffold 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.