PR 23137 runtime verification, 2026-10-28
head: 6a5ad20491d5ff94c3795a757db40015ad92d1f1
main baseline: github/main 8e76f945d2e1

main worktree: git worktree add ../main github/main; vp i completed.
main vp run dev: server 16733, web 8693; stopped before PR.
main desktop startup did not reach usable capture: long frontend build, then missing libsecret-1-dev. Installed prerequisite and retried; did not complete desktop flow within budget.

Hyprland 0.56.2 installed from Nix cache.
VM originally had no /dev/dri. Enabled vkms and Mesa software rendering.
Hyprland HEADLESS-1: 3840x2160, scale 1.
main helper check: {"feedbackAvailable":true}
Chrome opened the actual public PR in a native Wayland window.
main native helper capture: "Hyprland capture timed out. Check screen-sharing permission."
PR native helper capture: "Resource temporarily unavailable (os error 11)"
Neither attempt wrote capture.png. No performance comparison is established.

PR vp i completed; vp run dev reached running server and Vite client.
Playwright + /usr/bin/google-chrome paired and rendered the real web client.
Client warned: machine froze for 26s; CPU overloaded (load 10 on 4 cores).
Server warned of event loop stalls including 17707 ms.

Blacksmith on exact PR head:
cargo build --locked --release --manifest-path native/hyprland-snap-shot/Cargo.toml: passed
cargo test --locked --manifest-path native/hyprland-snap-shot/Cargo.toml: 11 passed, 0 failed
cargo test --locked --manifest-path native/kde-snap-shot/Cargo.toml: 12 passed, 0 failed
Tests include fast PNG output, pixel equality, fallback, rejection and FD transport. These are automated checks, not real compositor proof.
Cafe reported 27 successful checks, 0 failing, 0 pending on this head.

Not verified: original slowdown on main, desktop capture-to-composer, snapshot attachment sent to Codex gpt-6.1-sol, real PNG compression/timing/pixel comparison, real size-limit fallback/rejection, KDE6, physical display/GPU and other operating systems.
No source changes, commits or pushes.