Part 1 · Explainers
Auto-compaction is a colossal piece of crap
After compaction, an agent broke an explicit constraint in 30 runs out of 100, compared with 0 before (Wang et al., July 2026): the summary keeps the task and loses the rails.
Path
Claude Code without the waste
Context, tokens, and security in Claude Code, one piece after another: by the end you know what you load on every request, when to compact, and which versions to install.
Notify me on Telegram (in Italian)The parts, in order
Part 2 · Tutorial · Tools
Turn off auto-compaction in Claude Code
Two keys in settings.json turn off auto-compaction and idle compaction: you run compaction yourself when you need to.
Part 3 · Explainers
Claude Code hygiene
You know what you load on every request, you turn off what you don’t use, and you move hard rules into permissions: the monthly routine, with measurements from my setup and a prompt that does the inventory for you.
Part 4 · Security
Using AI agents? You’re at risk: the prompt that keeps you safe
A flaw in the Brotli library, inside Node.js and Bun, can crash AI agents and might let attackers run code. Since October 27, CISA has listed it as exploited. You need Node 22.23.4, 24.22.1, or 26.12.1 (or later on the same release line), Bun 1.4.4, and Claude Code 2.1.308.