retell_publish_agent · Retell AI MCP Server MCP

WHAT IT DOES

What retell_publish_agent does on Retell AI MCP Server

AI agents invoke retell_publish_agent to trigger actions in Retell AI MCP Server. 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 retell_publish_agent needs a policy

Publishing/deploying an agent configuration triggers an external operation that makes the agent live/active in production. This is an Execute-category action as it triggers an external deployment operation with real-world effects (activating an AI phone agent). Severity is high because deploying a misconfigured agent could result in widespread incorrect behavior across all calls handled by that agent.

From the tool's definition Publish/deploy the current agent configuration as a new version

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

retell_publish_agent Rate-limited

retell_publish_agent 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": {
    "retell_publish_agent": {
      "limits": [
        {
          "counter": "retell_publish_agent_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 Retell AI MCP Server, so you can run agents against it safely.

FAQ

Questions about retell_publish_agent

What does the retell_publish_agent tool do? +

Publish/deploy the current agent configuration as a new version. It is categorised as a Execute tool in the Retell AI MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on retell_publish_agent? +

Register the Retell AI MCP Server MCP server in PolicyLayer and add a rule for retell_publish_agent: 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 Retell AI MCP Server. Nothing to install.

What risk level is retell_publish_agent? +

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

Can I rate-limit retell_publish_agent? +

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

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

retell_publish_agent is provided by the Retell AI MCP Server MCP server (itsanamune/retellsimp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.