Compaction

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Make Claude Code re-read your plan after every compaction: a SessionStart brief that also warns before a stale resume

One 60-line hook rebuilds the agent's bearings from git and a plan file after /clear and compaction, and puts a price on resuming a cold session. About fifteen minutes to set up.

26 October 202612 min read

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Assistants How-to

Claude Code now compacts your idle session before the cache expires. Here's when that saves money and when it costs you

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.

16 October 20269 min read

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Assistants How-to

Claude Code waits until 967K tokens to compact. Pick the window yourself

On a 1M-context model, a long session drags a near-million-token history through every turn. One command sets a smaller auto-compact window, and a cost model shows where it pays off.

13 October 20269 min read