Agent skill · software engineering · jeremylongshore
retellai-local-dev-loop
Retell AI local dev loop \u2014 AI voice agent and phone call automation.\n\
Why this skill is useful
Provides specific implementation patterns and error handling for the Retell AI SDK that the AI wouldn't reliably generate on its own.
What it needs
Requires npm installed locally. Requires retellai account access. About 1k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Retell AI Local Dev Loop Overview Implementation patterns for Retell AI local dev loop — voice agent and telephony platform. Prerequisites Completed retellai-install-auth setup Instructions Step 1: SDK Pattern Output Retell AI integration for local dev loop Error Handling Error Cause Solution ------- ------- ---------- 401 Unauthorized Invalid API key Check RETELLAPIKEY 429 Rate Limited Too many requests Implement backoff 400 Bad Request Invalid parameters Check API documentation Examples Iterate on a prompt with a deterministic local test set Keep a small suite of synthetic caller intents, including a successful request, an unclear request, and a required human handoff. Run that suite against a development agent after each prompt or tool-schema change and compare only redacted outcomes such as route, tool arguments, and completion state. Do not point local development at a production phone number; publish a versioned preview only after the suite continues to meet its expected behavior. Resources Retell AI Documentation retell-sdk npm Next Steps See related Retell AI skills for more workflows.
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/retellai-local-dev-loop