name: docs-tracker description: Automates documentation maintenance. Detects modified files via git diff, creates docs for new files, updates docs for modified files, generates changelog. Use after implementation to keep docs current. allowed-tools: Read, Glob, Grep, Bash

Docs Tracker - Automatic Documentation System

Purpose

This skill automates documentation maintenance:

• Detects modified files via git diff
• Compares with existing documentation
• Creates docs for new files
• Updates docs for modified files
• Removes docs for deleted files
• Generates automatic changelog

Execution Flow

1. DETECT CHANGES → git diff --name-status
        ↓
2. CLASSIFY CHANGES → A=Added, M=Modified, D=Deleted
        ↓
3. CHECK EXISTING DOCS → docs/, codebase-knowledge/domains/
        ↓
4. EXECUTE ACTIONS → Create, update, or remove docs

Detection Commands

Changes Since Last Commit

git diff --name-status HEAD~1

Changes vs Main

git diff --name-status main..HEAD

Added Files

git diff --name-status main..HEAD | grep "^A"

Modified Files

git diff --name-status main..HEAD | grep "^M"

Deleted Files

git diff --name-status main..HEAD | grep "^D"

Detailed File Diff

git diff main..HEAD -- path/to/file.ts

File → Doc Mapping

Update Rules

CREATE Doc When:

• New file in server/routers/ → Update domain
• New file in server/models/ → Update domain
• New page in app/ → Create flow doc if complex
• New complex component → Consider doc

UPDATE Doc When:

• tRPC procedure changed signature
• Model changed schema
• Page changed main flow
• Connections between domains changed

REMOVE Doc When:

• File was deleted
• Feature was completely removed
• Component was discontinued

Changelog Template

## [Unreleased] - YYYY-MM-DD

### Added

- New feature X in `path/to/file.ts`
- New component Y

### Changed

- Changed behavior of Z
- Refactored module W

### Fixed

- Fixed bug in A
- Resolved issue #123

### Removed

- Removed obsolete feature B

### Docs Updated

- Updated `codebase-knowledge/domains/[domain].md`
- Created `docs/flows/[feature].md`

Pre-Commit Checklist

1. Detect Changes

git diff --name-status --cached

2. For Each Modified File

• Which domain does it belong to?
• Is domain updated in codebase-knowledge/domains/?
• Has flow doc in docs/flows/? Needs update?
• Commit hash will be added to domain?

3. For Added Files

• Which domain? Add to file list
• Needs own doc or just update domain?
• Connections with other domains?

4. For Deleted Files

• Remove from codebase-knowledge/domains/
• Remove flow doc if exists
• Update connections in related domains

Integration with Codebase-Knowledge

Update Domain After Change

## Domain Update: [name]

### Changes Detected

| File         | Status   | Description    |
| ------------ | -------- | -------------- |
| path/file.ts | Modified | [what changed] |

### Required Updates in domains/[domain].md

- [ ] Update "Last Update" with date and commit
- [ ] Add/remove files from list
- [ ] Update "Recent Commits"
- [ ] Check "Connections" if integration changed
- [ ] Update "Attention Points" if applicable

Output Format

## DOCS TRACKER - Report

### Changes Detected

- **Added:** X files
- **Modified:** Y files
- **Deleted:** Z files

### Docs That Need Update

| Doc              | Type   | Action | Priority |
| ---------------- | ------ | ------ | -------- |
| domains/auth.md  | domain | update | HIGH     |
| flows/feature.md | flow   | create | MEDIUM   |

### Actions Executed

- [x] Updated `domains/auth.md` with commit abc123
- [x] Created `flows/new-feature.md`
- [x] Removed `flows/obsolete.md`

### Changelog Generated

[changelog preview]

Critical Rules

1. ALWAYS run before commit - Outdated docs are technical debt
2. NEVER ignore new files - Every file deserves documentation
3. KEEP changelog updated - Facilitates releases
4. SYNC with codebase-knowledge - It's the source of truth

Version

• v2.0.0 - Generic template