---

name: retellai-policy-guardrails description: "Retell AI policy guardrails \u2014 AI voice agent and phone call automation.\n
Use when working with Retell AI for voice agents, phone calls, or telephony.\nTrigger
\ with phrases like "retell policy guardrails", "retellai-policy-guardrails"
, "voice agent".\n" allowed-tools: Read, Write, Edit, Bash(npm:), Bash(curl:), Grep version: 1.9.0 license: MIT author: Jeremy Longshore jeremy@intentsolutions.io tags:

• saas
• retellai
• voice
• telephony
• ai-agents compatibility: Designed for Claude Code

---

Retell AI Policy Guardrails

Overview

Implementation patterns for Retell AI policy guardrails — voice agent and telephony platform.

Prerequisites

• Completed retellai-install-auth setup

Instructions

Step 1: SDK Pattern

import Retell from 'retell-sdk';
const retell = new Retell({ apiKey: process.env.RETELL_API_KEY! });

const agents = await retell.agent.list();
console.log(`Agents: ${agents.length}`);

Output

• Retell AI integration for policy guardrails

Error Handling

Error	Cause	Solution
401 Unauthorized	Invalid API key	Check RETELL_API_KEY
429 Rate Limited	Too many requests	Implement backoff
400 Bad Request	Invalid parameters	Check API documentation

Examples

Restrict a booking agent to an approved action boundary

Give an appointment agent only the lookup and create-booking tools needed for its flow, with explicit argument validation and a human handoff for refunds, medical questions, or account changes. Test synthetic prompts that attempt each forbidden action and verify that the agent refuses or transfers rather than improvising. Version the policy with the agent and review deviations from the guardrail before widening any permission.

Resources

• Retell AI Documentation
• retell-sdk npm

Next Steps

See related Retell AI skills for more workflows.