2026-11-01, disposable Linux Boat VM
PR: https://git.cafe/pingdotgg/t3code/pulls/18421
Baseline: github/main 575579d68a (separate /home/user/main worktree)
Candidate: 53019a8e27c9e754436359dafe3428589c21a445 (exact contributor head)

Setup:
  git worktree add ../main github/main
  vp i (main and candidate): passed
  setsid nohup vp run dev > /tmp/main-dev.log 2>&1 &
  main ports: server 16733, web 8693; captured launcher PID 14397
  stopped main by captured process group before starting candidate
  setsid nohup vp run dev > /tmp/dev.log 2>&1 &
  candidate ports: server 13773, web 5733; captured launcher PID 31482

Real client/provider:
  Playwright 1.60.0 from repo dependencies; /usr/bin/google-chrome
  created project via Add project > Local folder, pointing at a real git repo
  submitted real Codex gpt-6.1-sol turns through the web composer
  baseline turn created README.md and eight directories with note.txt and committed them
  candidate inspection turn confirmed the same repository contents
  no mocks, replay provider, seeded fixtures, or production code instrumentation

Slow-connection comparison:
  forwarded real WebSocket messages and responses unchanged
  delayed only projects.listEntries response delivery by 1000ms
  same actual Refresh workspace files button, 20 Playwright clicks per run
  excluded mount/initial listings from measured burst
  main: 20 root listings, peak 1, 21022ms from burst start to final listing response
  candidate: 3 root listings, peak 1, 3193ms
  clicks continued during the first follow-up on candidate, legitimately queuing a third scan

Neighboring behavior on candidate:
  expanded all eight folders via the actual Files panel
  20 rapid refresh clicks: 18 listings across root and eight folders, peak 4, 5188ms
  every visited directory was listed twice; no serialized duplicate backlog
  real Codex turn used three shell commands to create root-created.txt and folder-0/new.txt,
    rename folder-1/note.txt to renamed.txt, and delete folder-2/note.txt
  open Files tree automatically displayed created/renamed/deleted state without manual refresh
  six note.txt entries remained; root-created.txt, new.txt, renamed.txt were visible
  searched new.txt and opened it; exact rendered file contents provider-created were visible
  20 refresh clicks followed by closing Files: one listing already started, zero follow-ups after close
  reopened Files: root-created.txt still visible, listings completed successfully

Checks run remotely through blacksmith-check:
  vp i
  installed Chromium and its system dependencies in the testbox
  vp test run apps/web/src/components/files/useDirectoryEntries.browser.test.tsx
    1 file passed; 6 tests passed in Chromium
  fetched candidate history in the shallow testbox snapshot to establish its actual merge base
  vp run check:changed 45d29b45fe9ee7303fcdff86fc150b4a021ed823
    pass format, lint, knip 1/2, knip 2/2, typecheck (2 packages), test (1 file), React Compiler (1 file)
  hosted checks observed on candidate: 33 successful, 0 failing, 0 pending

Not exercised:
  native desktop shell, iOS/Android, macOS/Windows, other provider adapters,
  actual remote/relay/tunnel connection, reconnect and filesystem error handling

No source changes, commits, pushes, labels, merge, close, rebase or force-push.