retell_create_chat_agent · Retell AI MCP Server MCP

WHAT IT DOES

What retell_create_chat_agent does on Retell AI MCP Server

AI agents use retell_create_chat_agent to create or update resources in Retell AI MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Retell AI MCP Server environment.

WHY IT NEEDS A POLICY

Why retell_create_chat_agent needs a policy

This tool creates a new agent resource within the Retell AI platform. Creation of chat agents is a Write operation—it establishes new data/configuration that can be modified or deleted later. While the agent itself could be used to interact with users or execute tasks, the tool itself only performs the creation action.

From the tool's definition Tool name 'retell_create_chat_agent' uses the verb 'create', which creates a new chat agent configuration. Description confirms 'Create a new chat agent for text-based conversations.' This is a reversible data creation operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

retell_create_chat_agent Rate-limited

retell_create_chat_agent 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": {
    "retell_create_chat_agent": {
      "limits": [
        {
          "counter": "retell_create_chat_agent_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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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_create_chat_agent

What does the retell_create_chat_agent tool do? +

Create a new chat agent for text-based conversations. It is categorised as a Write tool in the Retell AI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on retell_create_chat_agent? +

Register the Retell AI MCP Server MCP server in PolicyLayer and add a rule for retell_create_chat_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_create_chat_agent? +

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

Can I rate-limit retell_create_chat_agent? +

Yes. Add a rate_limit block to the retell_create_chat_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_create_chat_agent completely? +

Set action: deny in the PolicyLayer policy for retell_create_chat_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_create_chat_agent? +

retell_create_chat_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.