Dead Letter Queue

Store failed jobs for replay and debugging.

When to Use This Skill

• Jobs fail after max retries
• Need visibility into failure patterns
• Want to replay failed jobs manually
• Can't afford to lose failed work

Core Concepts

1. Capture context - Store enough info to replay
2. Track attempts - Record all error messages
3. Enable replay - Allow manual re-processing
4. Enforce limits - Prevent unbounded growth

TypeScript Implementation