gsd_validate · Gsd MCP: Risk & Policy

WHAT IT DOES

What gsd_validate does on Gsd

AI agents invoke gsd_validate to trigger actions in Gsd. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why gsd_validate needs a policy

The tool actively runs validation checks including consistency checks, health checks, and agent checks. This is an execution action (triggering external operations/checks) rather than a simple read. While it likely does not modify data, 'run' implies executing processes.

From the tool's definition "Run GSD validation checks (consistency, health, agents)" — 'Run' indicates execution of checks/scripts against the project state

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gsd_validate Rate-limited

gsd_validate stays usable, but rate-capped — a runaway agent can't fire it dozens of times 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_validate": {
      "limits": [
        {
          "counter": "gsd_validate_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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_validate

What does the gsd_validate tool do? +

Run GSD validation checks (consistency, health, agents). It is categorised as a Execute tool in the Gsd MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on gsd_validate? +

Register the Gsd MCP server in PolicyLayer and add a rule for gsd_validate: 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_validate? +

gsd_validate is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit gsd_validate? +

Yes. Add a rate_limit block to the gsd_validate 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_validate completely? +

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

gsd_validate 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.