backlog (Codex)

backlog (Codex)

Use this skill to mirror the Claude /​backlog plugin flows inside Codex. It assumes the repository follows the tasks/ structure described in the plugin README.

Responsibilities

• Enumerate tasks by reading tasks/​INDEX.md when present, otherwise infer from tasks/[PREFIX]-[N] directories.
• Display task details by reading tasks/[ID]/​PRD.md, PROGRESS.md, and REVIEW.md.
• Launch work by creating/​updating a worktree and generating PROMPT.md + PROGRESS.md guidance.
• Move tasks through pending -> in_progress -> review -> complete and archive when done.

How to Use

• status: Summarize tasks by status with dependencies and worktrees. Prefer tasks/​INDEX.md; if missing, scan tasks/​* except archive/.
• read <ID>: Normalize IDs (allow P-5 or 5 with detected prefix). Output PRD highlights (title, goals, acceptance criteria) and the latest progress/​review notes.
• work <ID>: Start working on a task in the current session (no worktree). Creates PROMPT.md, marks status in_progress. Use for quick/​simple tasks.
• launch <ID>:
  1. Resolve repo root (git rev-parse --show-toplevel) and expected worktree branch (commonly feature/<kebab> from PRD).
  2. Create or reuse worktree via plugins/​backlog/​scripts/​wt-create.sh <branch> [repo-root].
  3. Generate/​refresh PROMPT.md in the worktree root with: task summary, completion promise (TASK_COMPLETE), instructions to update tasks/[ID]/​PROGRESS.md, and memory/​compact guidance.
  4. Ensure tasks/[ID]/​PROGRESS.md exists with a Checkpoints section; append a new entry noting the launch.
  5. Mark status in_progress in tasks/​INDEX.md (or add frontmatter to PRD if no index).
  6. Print launch steps for the user (cd <worktree>, run Claude/​Codex, start agent loop).
• complete <ID>: Complete a task. Supports two modes:
  • In-session mode (from /​backlog:work): Commits changes, rebases if on feature branch, merges to main, removes PROMPT.md, marks complete.
  • Worktree mode (from /​backlog:launch): Two-phase workflow - Phase 1 from worktree (rebase, mark pending), Phase 2 from main (merge, archive, cleanup).
• prune [<ID>|--all]: Move completed/​reviewed tasks to tasks/​archive/, update INDEX.md, and list any stale worktrees to delete (use plugins/​backlog/​scripts/​wt-remove.sh <branch> [repo-root]).
• review <ID>: Transition task to code review mode (not task definition audit - use /​design:review for that). Updates PROMPT.md in worktree to switch from implementation to code review.
• list: Read tasks/​INDEX.md and display formatted table with columns: ID, Title, Status, Dependencies, Worktree. Include summary counts and next actions. Use --worktrees-only to show only active worktrees.

Key Files

• tasks/​INDEX.md — canonical task table (layer name, prefix, status, worktree, deps).
• tasks/[ID]/​PRD.md, PROGRESS.md, REVIEW.md — task docs to read/​write.
• PROMPT.md (in worktrees) — agent instructions; regenerate when launching if stale.
• Scripts: plugins/​backlog/​scripts/​wt-create.sh, wt-remove.sh (worktree management), deps.sh (dependency checks).

Conventions

• Layer/​prefix detection: read tasks/​INDEX.md for layer/prefix; else derive prefix from repo/​dir name first letter.
• Status icons: 🆕 pending, 🚀 in_progress, 📋 review, ✅ complete. Respect any existing icon mapping.
• Dependencies: mark tasks blocked if prerequisites are not complete/review.
• Be non-destructive with user files; append to PROGRESS.md instead of overwriting unless asked.