Claude Fable 5
e1f569cc3e
Two leak paths: (a) AtomicFile.write renames the temp file onto the probe path and THEN fsyncs the containing directory — if that last fsync throws, the probe file already exists on disk but the old code returned false without ever attempting removal; (b) if the explicit removeItem call itself threw, there was no retry, so a transient File Provider removal failure left the file behind permanently. Fix: an unconditional `defer` now checks fileExists and retries removeItem regardless of which branch returned early. The function only reports true when the explicit write, fsync (inside AtomicFile.write), AND removal all succeeded AND the file is confirmed gone afterward. New test: a FileManager subclass whose removeItem(at:) throws on its first call (AtomicFile.write itself never touches this injected FileManager — it uses raw Darwin/POSIX calls, not FileManager, so this only intercepts the explicit removal + the defer's retry) asserts the function returns false AND no probe file remains — verified this actually needs the defer by temporarily removing it and confirming the same test then fails with a leftover ".redline-probe-<uuid>" file (see this branch's history for the discarded revert). The directory-fsync failure path has no injectable seam (raw fsync(2) on an already-open fd, not parameterized by any FileManager or other substitutable dependency, and not reproducible via chmod or other standard test techniques) — documented in the test rather than simulated. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012ZiTXPbPCSjzPVsfoweAbp
Redline
A macOS menu-bar app that captures a remembered screen region, builds a one-screenshot-per-page PDF, AirDrops it to an iPad for markup, then watches for the annotated file to come back.
Hotkeys
- ⌥⇧1 — pick a new region, then capture it.
- ⌥⇧2 — capture the remembered region instantly (no picker).
Screen Recording permission
On first launch macOS asks once for Screen Recording. Grant it at System Settings > Privacy & Security > Screen Recording. You never have to do this again as long as the app is not re-signed with a different identity.
The grant is bound to the bundle identifier ai.flowmaster.shotdeck plus the code signature. Changing either one forces a fresh prompt.
Build
swift build && swift test
./scripts/build-app.sh # signed .app for daily use
open .build/Redline.app