vguard_quality_gate · Vibe Guard MCP: Risk & Policy

WHAT IT DOES

What vguard_quality_gate does on Vibe Guard

AI agents invoke vguard_quality_gate to trigger actions in Vibe Guard. 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 vguard_quality_gate needs a policy

This tool executes quality gate checks on a project, which is an Execute operation—it runs code or triggers external processes (quality checks, automated validations) rather than merely reading data.

From the tool's definition Tool description states '运行项目质量检查' (run project quality check) or log explicit skip reasons. The verb '运行' (run) indicates execution of quality checks, which likely involve triggering automated processes or external operations whose effects depend on how the…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vguard_quality_gate Rate-limited

vguard_quality_gate 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": {
    "vguard_quality_gate": {
      "limits": [
        {
          "counter": "vguard_quality_gate_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 Vibe Guard, so you can run agents against it safely.

FAQ

Questions about vguard_quality_gate

What does the vguard_quality_gate tool do? +

运行项目质量检查，或记录显式跳过原因。. It is categorised as a Execute tool in the Vibe Guard MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on vguard_quality_gate? +

Register the Vibe Guard MCP server in PolicyLayer and add a rule for vguard_quality_gate: 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 Vibe Guard. Nothing to install.

What risk level is vguard_quality_gate? +

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

Can I rate-limit vguard_quality_gate? +

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

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

vguard_quality_gate is provided by the Vibe Guard MCP server (sikuai2333/vibe-guard). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.