Claude Code now tells hooks what a /model switch will cost before it happens. A 40-line script turns that into a confirmation, a hard refusal for unattended sessions and a ledger.
8 min read
Leave a 200K-token conversation alone for about 54 minutes and Claude Code summarises it while the cache is still warm. The conditions, the two knobs, and a cost model for the trade.
9 min read
Cache reads on Sonnet 5.5 fell from $0.20 to $0.10 per million tokens on 7 October. A cost model of a 40-turn session shows where the money actually goes, and which Claude Code setting to check.
7 min read
