{
  "task": "dev-overhead-preview",
  "last_updated": "2026-05-28",
  "items": [
    {
      "id": "F001",
      "priority": 1,
      "status": "verified",
      "description": "Add a production-like local preview launcher and make the normal dev launcher clearly identify its dev-mode overhead.",
      "verification": [
        "./scripts/agent-init.sh --smoke",
        "BROWSER=none corepack yarn start",
        "BROWSER=none corepack yarn start:preview",
        "curl -k -I https://codex-chore-dev-overhead-preview.5chan.localhost",
        "SMOKE_BASE_URL=https://codex-chore-dev-overhead-preview.5chan.localhost/#/ node scripts/smoke-web-app.js",
        "playwright-cli Chrome /pol thread/back timing",
        "playwright-cli Firefox/WebKit /pol load checks",
        "PORTLESS=0 BROWSER=none PORT=4990 corepack yarn start:preview",
        "curl -I http://127.0.0.1:4990",
        "corepack yarn build",
        "corepack yarn lint",
        "corepack yarn type-check",
        "corepack yarn knip"
      ],
      "files": [
        "package.json",
        "scripts/start-dev.js",
        "scripts/start-preview.js",
        "scripts/local-server-utils.mjs",
        "docs/agent-runs/dev-overhead-preview/feature-list.json",
        "docs/agent-runs/dev-overhead-preview/progress.md"
      ],
      "notes": "Handoff source: /var/folders/6_/_kkfxkkn33j830_dt_gj0zqh0000gn/T/5chan-dev-overhead-handoff-2026-05-28T23-25-32.md. Preview /pol browser-back-to-board timings in Chrome were 170ms, 125ms, and 120ms."
    }
  ]
}
