Agent skill · software engineering · jeremylongshore
retellai-core-workflow-b
Retell AI core workflow b \u2014 AI voice agent and phone call automation.\n\
Why this skill is useful
Adds executable scripts for managing phone calls and telephony automation that aren't in public docs.
What it needs
Requires npm installed locally. Requires retellai account access. About 2k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Retell AI Core Workflow B Overview Manage phone calls: outbound campaigns, call transfers, recordings, and concurrent call handling. Prerequisites Completed retellai-core-workflow-a Instructions Step 1: Outbound Call Campaign Step 2: List and Filter Calls Step 3: Get Call Recording and Transcript Output Outbound call campaign with rate limiting Call listing with status and duration Recordings and transcripts retrieved Error Handling Error Cause Solution ------- ------- ---------- Call fails immediately Bad phone number format Use E.164 format No recording Recording not enabled Enable in agent settings Concurrent limit Too many active calls Upgrade plan or queue calls Examples Run a bounded outbound appointment reminder campaign Upload only consented test contacts to a development campaign and set a small concurrency limit before enabling any production queue. For each test call, verify the E.164 number formatting, expected agent version, completion status, and redacted transcript retrieval. If a call result is ambiguous, query the call identifier before retrying so an operator does not create duplicate calls or overwrite the original outcome. Resources Create Phone Call Retell AI Documentation Next Steps Handle call events: retellai-webhooks-events
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/retellai-core-workflow-b