tune-chunkinglisted

# Skill: Tune chunking A chunk that splits the answer is a retrieval bug introduced at ingestion (§3 #2). ## Step 1 — Inspect the failing chunks Are answering units (tables, sections) split or buried? (§3 #2) ## Step 2 — Adjust size + overlap Tune against recall@k, not a guessed default (§3 #2). ## Step 3 — Add structure-awareness Keep tables/sections intact; add metadata for pre-filtering (§3 #2). ## Step 4 — Check the context budget Size × top-k + overhead vs window via `ai_rag_engineering_calc.py chunk-budget` (§3 #5). ## Output A chunking design tied to recall@k and the context budget. Traverse Tree 2 in the decision-trees file.