evaluate_quality_gate · Agent-Comm-Hub MCP: Risk & Policy

WHAT IT DOES

What evaluate_quality_gate does on Agent-Comm-Hub

AI agents invoke evaluate_quality_gate to trigger actions in Agent-Comm-Hub. 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 evaluate_quality_gate needs a policy

This tool evaluates a quality gate and triggers downstream effects in a pipeline — specifically, it causes subsequent tasks to automatically transition to a 'waiting' state upon failure. This constitutes triggering external operations with side effects on pipeline state, fitting the Execute category.

From the tool's definition 评估质量门（通过/失败）。质量门失败时，Pipeline 中阻塞的后续任务自动进入 waiting 状态。

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

evaluate_quality_gate Rate-limited

evaluate_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": {
    "evaluate_quality_gate": {
      "limits": [
        {
          "counter": "evaluate_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 Agent-Comm-Hub, so you can run agents against it safely.

FAQ

Questions about evaluate_quality_gate

What does the evaluate_quality_gate tool do? +

评估质量门（通过/失败）。质量门失败时，Pipeline 中阻塞的后续任务自动进入 waiting 状态。. It is categorised as a Execute tool in the Agent-Comm-Hub MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on evaluate_quality_gate? +

Register the Agent-Comm-Hub MCP server in PolicyLayer and add a rule for evaluate_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 Agent-Comm-Hub. Nothing to install.

What risk level is evaluate_quality_gate? +

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

Can I rate-limit evaluate_quality_gate? +

Yes. Add a rate_limit block to the evaluate_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 evaluate_quality_gate completely? +

Set action: deny in the PolicyLayer policy for evaluate_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 evaluate_quality_gate? +

evaluate_quality_gate is provided by the Agent-Comm-Hub MCP server (liuboacean/agent-comm-hub). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.