Development record

.abcd/development/brief/04-surfaces/21-update.md:189-192 says the salvage that discards its output is run by the per-prompt, per-command and pre-compaction hooks. hooks/post-tool-use.sh, matched to the question tool, and hooks/permission-request.sh run the same `bootstrap.sh --unseen` (hooks/hooks.json). .abcd/development/brief/05-internals/03-configuration.md:1833-1836 counts five events.