Project Lineage

Explain the chain from origin to current state. Build a trace that distinguishes evidence from inference, chronology from causality, and current truth from historical leftovers.

Use this skill to

• trace how a requirement, document, workflow, or system evolved
• reconstruct decision history across commits, tickets, docs, and handoffs
• map data lineage from source through transformations to downstream consumers
• resolve source-of-truth conflicts and inherited-assumption confusion
• produce audit-style chronology for migrations, incidents, or operational rules

Do not use this skill to

• give ordinary status updates with no need for historical traceability
• invent neat narratives when records are incomplete
• debug current behavior when provenance is irrelevant
• design future work from scratch with no lineage question