npx claudepluginhub sontixyou/claude-code-plugin-upgrader --plugin plugin-upgradeDefined in hooks/hooks.json
*bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/check-updates-notify.sh30msOn SessionStart matching startup|clear|compact, sequentially prints 7 Loom bootstrap reference markdown files (core-identity to validation-honesty) with headers and staggered sleeps via printf, sleep, and cat shell commands.