Imported from jeremylongshore/tons-of-skills-marketplace (skills/.curated/retellai-cost-tuning/SKILL.md). Install upstream with npx skills add jeremylongshore/tons-of-skills-marketplace --skill retellai-cost-tuning. Copyright stays with the author (MIT).

Retell AI Cost Tuning

Name: retellai-cost-tuning
Author: jeremylongshore

Overview

Implementation patterns for Retell AI cost tuning — 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 cost tuning

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

Reduce cost without degrading a required human handoff

Measure average call duration, transfer rate, and failed-call retries for a representative non-production sample before changing prompt length or model settings. Trial the lower-cost configuration on a small canary, retaining the existing agent version as rollback. Keep the human-handoff trigger unchanged unless the service owner approves a new threshold; a shorter call is not a saving if it silently increases unresolved customer requests.

Resources

Next Steps

See related Retell AI skills for more workflows.

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retellai-cost-tuning

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