ai_moderate · Run402 MCP: Risk & Policy

WHAT IT DOES

What ai_moderate does on Run402

AI agents invoke ai_moderate to trigger actions in Run402. 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 ai_moderate needs a policy

The tool triggers an external operation (content moderation inference) and returns results. It does not store or delete data (Read would imply simple retrieval without external computation), making Execute the most appropriate category. Blast radius is low since it is read-only in effect and described as free for all projects, but it does invoke an external service with a service key.

From the tool's definition 'Run content moderation on text' — executes an external AI/ML moderation service call that returns flagged status and category scores

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ai_moderate Rate-limited

ai_moderate 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": {
    "ai_moderate": {
      "limits": [
        {
          "counter": "ai_moderate_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 Run402, so you can run agents against it safely.

FAQ

Questions about ai_moderate

What does the ai_moderate tool do? +

Run content moderation on text. Returns flagged status and category scores. Free for all projects, requires service key. It is categorised as a Execute tool in the Run402 MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on ai_moderate? +

Register the Run402 MCP server in PolicyLayer and add a rule for ai_moderate: 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 Run402. Nothing to install.

What risk level is ai_moderate? +

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

Can I rate-limit ai_moderate? +

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

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

ai_moderate is provided by the Run402 MCP server (kychee-com/run402). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.