Developer moves Claude Code hooks from shell scripts into a single in-process module

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A developer building workkit, a Claude Code workflow kit, moved most of its hooks out of shell scripts and into one plugin module loaded once per session. Each hook fire had previously spawned several processes, taking roughly 90 ms on an M1 Max, while a function call within a running process takes near zero. The design isolates host-interface code in one file, so the hook logic can be tested as plain functions without Claude Code. The same week, the agent's GitHub bookkeeping was changed to post as a GitHub App bot, with a hosted service holding the private key and issuing short-lived per-repo tokens. The article also notes a separate framework issue where a backend self-test created 91 test users at once, triggering auth functions.

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