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* fix(hooks): bound hook workspace manifest and HOOK.md reads * fix(hooks): enforce maxBytes while reading hook metadata fd ClawSweeper review noted that openRootFileSync validates stat size before returning the fd, but the subsequent fs.readFileSync of the fd was unbounded. A file that grows after validation could still OOM workspace discovery. Replace the full fd read with a chunked bounded reader that throws once maxBytes is exceeded, and add regression coverage for the overflow case. * test(hooks): cover bounded hook reads through public workspace API * refactor(hooks): use canonical bounded fd reader for hook metadata * fix(hooks): warn and skip oversized hook metadata during discovery ClawSweeper review required the maintainer-selected oversized-metadata diagnostic contract: warn and skip. readRootFileUtf8 now catches the RangeError from the canonical readFileDescriptorBoundedSync helper and emits one warning per oversized package.json/HOOK.md identifying the path and the byte limit, while discovery continues for other hooks. The redundant open-time maxBytes stat check is removed so the shared bounded reader is the single owner of the byte cap; overflow always surfaces as RangeError, keeping the warning accurate for both static oversized files and post-open growth. Add focused tests: warning content for both oversized surfaces, continued discovery alongside an oversized hook, exact-limit acceptance, and the plain-hook fallback when a package manifest is oversized. * chore: retrigger CI after rebase * refactor(hooks): tighten bounded metadata coverage --------- Co-authored-by: Peter Steinberger <steipete@gmail.com>