cachewise — where your cache dollars leak

/cachewise — analyze the last 30 days across every project /cachewise --days N — widen or narrow the window

Answer one question: which habits are rebuilding cache you already paid for, and what would each fix save? Prompt caching makes a cache read cost 0.1× and a rebuild cost 1.25× — so every avoidable miss is a ~12× markup on that slice of context. ccusage and /cost count the tokens; cachewise says why the expensive ones happened and what to change. The evidence is on disk — the transcripts recorded every cache write; this skill attributes them so the numbers, not folklore, drive the fix.

Step 0 — Run the analyzer

The counting is deterministic and token-free — never read the raw JSONL yourself (parsing thousands of transcript lines with the model is the exact token burn this skill exists to stop). Run the bundled script: