Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
HooksArea: what it touches
Internal ChangesKind: in v2.1.296,
Internal ChangesSection of the release
What
Hooks are your own commands that Claude Code runs at set moments. Claude Code runs them on a worker, a separate thread working alongside the main program. On Linux and WSL (Windows Subsystem for Linux), that worker is now given a name, and Claude Code reads the system's per-thread files under /proc/self/task to measure how much CPU time the worker has used and whether it is asleep.
Why
This gives Claude Code a way to diagnose a hooks worker that has stalled.