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

WHAT IT DOES

What add_quality_gate does on Agent-Comm-Hub

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

WHY IT NEEDS A POLICY

Why add_quality_gate needs a policy

This tool creates/adds a new quality gate entity within a pipeline, modifying the pipeline's structure. It is reversible (the gate can presumably be removed) and does not execute code, delete data, or involve financial transactions. The blast radius is medium because a misconfigured quality gate could block all subsequent pipeline tasks, disrupting multi-agent workflows.

From the tool's definition 添加质量门 (add quality gate) — creates a blocking gate in a Pipeline after a specified order_index; modifies pipeline configuration with criteria rules in JSON format

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_quality_gate Rate-limited

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

FAQ

Questions about add_quality_gate

What does the add_quality_gate tool do? +

在 Pipeline 中添加质量门。质量门在指定 order_index 之后阻塞后续任务，直到评估通过。criteria 为 JSON 格式的检查规则。. It is categorised as a Write tool in the Agent-Comm-Hub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_quality_gate? +

Register the Agent-Comm-Hub MCP server in PolicyLayer and add a rule for add_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 add_quality_gate? +

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

Can I rate-limit add_quality_gate? +

Yes. Add a rate_limit block to the add_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 add_quality_gate completely? +

Set action: deny in the PolicyLayer policy for add_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 add_quality_gate? +

add_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.