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Load task PRD and project specs before writing code. Use before implementation, refactors, or harness changes.
Instalar con Codex o Claude Copia este prompt, pégalo en Codex, Claude u otro asistente, y deja que revise la página de la skill y la instale por ti.
Basado en la clasificación ocupacional SOC
The user's digital twin browser — a persistent headless Chromium that inherits their real Arc/Chrome cookies and browses the web as them. Use nightcrawl whenever the user wants to interact with a website as themselves: "go to", "open this site", "navigate to", "read this page", "search on [site]", "log in to", "download from", "scrape", "crawl", "what does this page say", "fill out this form", "check if this site blocks us", or any task involving a URL or web page. Also use it to LOG THE USER IN as themselves — "log me in", "sign in as me", "use my saved password", "get me into my account" — via `autofill-login`, which submits the browser's OWN saved password through Engine R (the real Arc browser) without ever reading it; and to FILL FORMS — "fill in my details/email/address", "autofill this signup" — via `autofill` from a local non-secret profile vault. Cookies already imported from the user's real browser persist across sessions in ~/.nightcrawl/ — never re-import. Stealth (CDP patches, UA, optional CloakB
Post-bug-fix retrospective — classify root cause, identify prevention, write the lesson into specs. Use after fixing any non-trivial bug, when a task involving 'fix', 'bug', 'debug', or 'diagnose' is being finished, or when the user asks 'what went wrong', 'why did this break', 'root cause', or 'lessons learned'. Also use when the lifecycle hook reminds you to run break-loop.
Verify recent Codex harness or project changes against task requirements, specs, tests, and rollout checks.
Resume the current Codex harness task. Use when returning to a task, when the user asks what state we are in, or when the conversation has shifted between planning, implementation, and checking.
Finish a Codex harness task after implementation, checking, spec updates, and rollout verification.
Analyze a codebase and generate durable spec files from existing patterns, architecture, and conventions. Use to initialize or refresh .codex/spec/ for a project. Also use when the lifecycle hook reminds you to run spec-bootstrap, when a project has empty or template-only specs, when the user says 'generate specs', 'initialize specs', 'bootstrap specs', or 'make the codebase context durable'.
| name | codex-before-dev |
| description | Load task PRD and project specs before writing code. Use before implementation, refactors, or harness changes. |
Load the minimum context needed for implementation.
Confirm the task:
python3 scripts/codex_harness.py task current
Load implement context:
python3 scripts/codex_harness.py task agent-context <task> implement
Read relevant spec indexes only:
python3 scripts/codex_harness.py spec list
Read the specific spec files that apply to the files you will touch.
Do not load dashboard, handoff bodies, or broad source previews unless they are needed for the current implementation decision.