TODO Scanner

Scan a codebase for incomplete work and maintain a living TODO.md grouped by feature clusters ready for /prd input. Do NOT implement anything — only inventory and organise.

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Detect Workflow

• TODO.md does not exist → run Steps 1–4 (Initial Creation)
• TODO.md exists → run Steps 0–4 (Subsequent Update)

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Step 0 — Find Completed Work (update only)

Parse Last updated: YYYY-MM-DD from existing TODO.md. Run git log --since="<timestamp>" --oneline, map commits to unchecked items, mark completed with [x] and commit hash. Never remove unchecked items.

Step 1 — Scan Codebase for Gaps

Search for each category and collect findings:

• Code comments: TODO, FIXME, HACK, XXX, PLACEHOLDER
• Mock data: Hardcoded arrays, faker, seed, mock in non-test files
• Placeholder components: Empty <div> bodies, <!-- TODO -->, stub templates
• Missing pages: Routes referencing nonexistent files
• Untested code: Source files with no corresponding test file
• Empty/stub files: Files under 5 lines, empty function bodies
• Design references: Mockups, wireframes in docs/, designs/, assets/

Step 2 — Check PRDs

Read tasks/prd-*.md. Annotate groups with > PRD exists — don't duplicate already-spec'd features.

Step 3 — Group into Feature Clusters

Organise findings into logical feature groups. Each group name should be descriptive enough to feed directly into /prd.

Step 4 — Compute Progress & Write / Update TODO.md

Count total items (- [ ] + - [x]), completed (- [x]), and remaining. Compute % = done / total * 100.

Overall Progress bar: Render a 40-char bar using █ for filled and ░ for empty, e.g. [████░░░░░░] 25.0% 10 / 40.

Weekly Snapshot table: On initial creation, add a baseline row with Done=0, Delta=—, and today's date. On update, append a new row only if the date differs from the last row — set Delta to +N (items completed since last row). Never remove previous rows.

Write to project root. On update, preserve all unchecked items and update the timestamp.

# TODO

> Last updated: YYYY-MM-DD via /todo

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## Overall Progress

\`\`\`
[███████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░]  17.0%  28 / 165
\`\`\`

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## Weekly Snapshot

| Date       | Done | Delta | Remaining | % Complete | Notes                         |
| ---------- | ---- | ----- | --------- | ---------- | ----------------------------- |
| 2026-02-24 | 0    | —     | 165       | 0.0%       | Baseline — TODO files created |
| 2026-02-25 | 28   | +28   | 137       | 17.0%      | First working week            |

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## [Feature Group Name]
- [ ] Self-contained feature description ready for /prd input (app/components/Foo.vue:12)
- [x] Completed item (via commit abc1234)

## [Another Feature Group]
> PRD exists: `tasks/prd-feature-name.md`
- [ ] Sub-task not covered by existing PRD (src/pages/bar.vue:5)

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Rules

1. Idempotent — running twice produces the same result
2. Additive only — never remove unchecked items on update
3. No implementation — only inventory and organise, never write code
4. PRD-aware — check tasks/prd-*.md and annotate groups accordingly
5. Always timestamp — update Last updated on every run
6. Source locations — include file:line for traceability
7. Self-contained items — each - [ ] must work as standalone /prd input

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Checklist

• All gap categories scanned; tasks/prd-*.md checked
• Items grouped by feature with source locations
• Each item is self-contained /prd input
• Last updated timestamp set; no unchecked items removed