AssemblyAI Skill Pack

Claude Code skill pack for AssemblyAI speech-to-text, LeMUR, and streaming transcription (18 skills)

What it does: Gives Claude Code deep knowledge of the AssemblyAI API — async transcription with audio intelligence (speaker diarization, sentiment, entities, PII redaction), real-time streaming via WebSocket, and LeMUR for LLM-powered audio analysis (summarization, Q&A, action items). Every skill uses the real assemblyai npm package with real SDK methods.

Links: AssemblyAI Docs | Node SDK | API Reference | Pricing

Installation

/plugin install assemblyai-pack@claude-code-plugins-plus

Skills Included

Getting Started (S01-S04)

| Skill | What It Does | |-------|-------------| | assemblyai-install-auth | Install assemblyai npm package, configure API key, verify connection | | assemblyai-hello-world | First transcription — remote URL, local file, audio intelligence features, LeMUR | | assemblyai-local-dev-loop | Dev environment with transcript caching, mocked tests, hot reload | | assemblyai-sdk-patterns | Singleton client, type-safe wrappers, error handling, retry logic, multi-tenant |

Core Workflows (S05-S06)

| Skill | What It Does | |-------|-------------| | assemblyai-core-workflow-a | Async transcription — speaker diarization, sentiment, entities, PII redaction, content safety | | assemblyai-core-workflow-b | Streaming transcription via WebSocket + LeMUR (summarize, Q&A, action items, custom tasks) |

Troubleshooting (S07-S09)

| Skill | What It Does | |-------|-------------| | assemblyai-common-errors | Real error messages with fixes — auth, download errors, rate limits, streaming codes, LeMUR | | assemblyai-debug-bundle | Diagnostic script + programmatic transcript inspection for support tickets | | assemblyai-rate-limits | Exponential backoff, p-queue concurrency control, streaming reconnection |

Security & Production (S10-S12)

| Skill | What It Does | |-------|-------------| | assemblyai-security-basics | API key management, temporary tokens for browsers, PII redaction, data retention | | assemblyai-prod-checklist | Go-live checklist, webhook-based processing, health checks, monitoring alerts | | assemblyai-upgrade-migration | SDK migration (old @assemblyai/sdk to assemblyai), model transitions, breaking changes |

Pro Skills (P13-P18)

| Skill | What It Does | |-------|-------------| | assemblyai-ci-integration | GitHub Actions with mocked unit tests + live integration tests, cost-controlled strategy | | assemblyai-deploy-integration | Deploy to Vercel, Cloud Run, Fly.io with webhook endpoints and streaming tokens | | assemblyai-webhooks-events | Webhook handler for transcription completion, idempotent processing, local testing | | assemblyai-performance-tuning | Model selection (Best vs Nano), batch processing, caching, webhook vs polling | | assemblyai-cost-tuning | Real pricing calculator, feature budgeting, usage tracking, cost reduction strategies | | assemblyai-reference-architecture | Layered architecture with transcription, LeMUR, and streaming services |

Key SDK Patterns Used

import { AssemblyAI } from 'assemblyai';

const client = new AssemblyAI({ apiKey: process.env.ASSEMBLYAI_API_KEY! });

// Async transcription (polls until done)
const transcript = await client.transcripts.transcribe({ audio: './file.mp3' });

// Submit with webhook (returns immediately)
await client.transcripts.submit({ audio: url, webhook_url: '...' });

// Streaming via WebSocket
const transcriber = client.streaming.createService({ speech_model: 'nova-3' });

// LeMUR — LLM on transcripts
await client.lemur.summary({ transcript_ids: [id] });
await client.lemur.questionAnswer({ transcript_ids: [id], questions: [...] });
await client.lemur.actionItems({ transcript_ids: [id] });
await client.lemur.task({ transcript_ids: [id], prompt: '...' });

License

MIT