Agent Skills: elves

Autonomous multi-batch development agent for long unattended runs. Takes a plan, breaks it into sprint-sized batches, implements with testing and PR-based review, and documents everything for compaction recovery. Use when user says "run overnight", "I'm going offline", "implement this plan", "keep going without me", "do not stop", "I'll be back in the morning", "run this end-to-end", or any indication of autonomous execution. Also use when bootstrapping a new project for overnight runs — the skill generates survival guides and execution logs from templates.