Agent skill
app-docs
Generate complete user documentation for a web app with screenshots. Browses the app via browser automation, screenshots every screen, and produces a structured user guide with step-by-step instructions, annotated screenshots, workflow diagrams, and reference tables. Supports quick (key screens), standard (all pages), thorough (every state and flow), and exhaustive (publishable documentation suite). Triggers: 'document the app', 'user guide', 'app documentation', 'screenshot docs', 'generate user docs', 'help docs', 'how-to guide', 'write the docs'.
Install this agent skill to your Project
npx add-skill https://github.com/jezweb/claude-skills/tree/main/plugins/dev-tools/skills/app-docs
SKILL.md
App Documentation Generator
Browse a running web app, screenshot every screen, and produce documentation good enough to publish. Not a screenshot dump — a structured guide that teaches someone how to use the app.
Browser Tool Detection
Same as ux-audit — Chrome MCP, Playwright MCP, or playwright-cli.
URL Resolution
Same as ux-audit — prefer deployed/live URL over localhost.
Depth Levels
| Depth | Screenshots | What it produces | Duration |
|---|---|---|---|
| quick | ~10 | Single-page quick-start guide. Key screens, happy path only. | 10-15 min |
| standard | ~30 | Full user guide. All pages, primary workflows, reference tables. | 30-60 min |
| thorough | ~80+ | Comprehensive guide. All states, mobile views, every CRUD flow, troubleshooting. | 1-3 hours |
| exhaustive | ~150+ | Publishable documentation suite. Everything in thorough plus: getting started tutorial, feature-by-feature deep dives, admin guide, keyboard shortcut reference, FAQ, and HTML version. | 3-6 hours |
Default: standard
Workflow
1. Get App Details
Ask the user:
- App URL (required — or auto-detect from wrangler.jsonc / running dev server)
- App name (for the guide title)
- Auth — Chrome MCP uses their session; Playwright needs credentials
- Depth — quick, standard, thorough, or exhaustive
- Audience — who reads this? (end users, admins, new team members, clients)
2. Discover All Routes
Navigate the app and build a complete page inventory:
- Read the sidebar/navigation menu
- Click through all top-level items and sub-items
- Note sub-pages, tabs within pages, and nested navigation
- Check for settings, profile, admin areas, help pages
- Record the URL and purpose of each page
- Note which pages have interactive elements (forms, buttons, filters)
Create a task list to track documentation progress.
3. Document Each Page
For each page in the inventory:
a. Navigate and Prepare
- Navigate to the page
- Wait for data to load (no skeleton/spinner in screenshot)
- Resize browser to 1280x720 for consistent screenshots
- Make sure the page has realistic data — not "Test Client" or empty tables
b. Screenshot the Default State
- Take a clean screenshot showing the page populated with data
- Save to
docs/screenshots/with descriptive names
c. Write the Page Section
For each page, write:
## [Page Name]
[One sentence: what this page is for and when you'd use it]

### What You'll See
[Describe the key elements: sidebar shows X, main area shows Y, toolbar has Z]
### What You Can Do
[List the actions available, each as a brief description]
### How To: [Primary Action]
1. [Step with screenshot reference]
2. [Step]
3. [Step — screenshot the result]
> **Tip:** [Helpful shortcut or non-obvious feature]
d. Document Key Workflows
For interactive pages, document step-by-step with screenshots at each significant step:
### How To: Add a New Client
1. Click the **"Add Client"** button in the top right

2. Fill in the required fields — Name and Email are required, everything else is optional

3. Click **"Save"** — you'll be taken to the new client's detail page

> **Tip:** You can also press **Cmd+N** from anywhere to create a new client.
e. Depth-Specific Extras
| Extra | quick | standard | thorough | exhaustive |
|---|---|---|---|---|
| Empty states | Skip | Note | Screenshot + document | Screenshot + suggest improvements |
| Error states | Skip | Note | Trigger + screenshot | Every validation error documented |
| Dark mode | Skip | Skip | Screenshot key pages | Screenshot every page |
| Mobile (375px) | Skip | Skip | Screenshot key pages | Screenshot every page |
| All CRUD | Skip | Primary only | Every operation | Every operation + edge cases |
| Settings/config | Skip | List options | Document each | Document each with examples |
| Keyboard shortcuts | Skip | List if visible | Full reference table | Dedicated section |
| Search/filters | Skip | Mention | Document each filter | Document every combination |
| Permissions/roles | Skip | Skip | Note differences | Separate section per role |
| API/integrations | Skip | Skip | Mention if present | Document endpoints + examples |
4. Write Supporting Sections
Beyond per-page documentation:
Getting Started (all depths):
## Getting Started
### Accessing [App Name]
- URL: [production URL]
- Supported browsers: Chrome, Firefox, Safari, Edge
- Mobile: [responsive / PWA / not supported]
### Logging In
[Screenshot of login page + steps]
### Your First 5 Minutes
1. [First thing to do after logging in]
2. [Second thing — the quick win]
3. [Third thing — explore the main feature]
Navigation Guide (standard+):
## Navigation
### Sidebar
[Screenshot with annotations describing each section]
### Quick Actions
- **Cmd+K**: Quick switcher — jump to any page or record
- **Cmd+N**: Create new [item]
[Other shortcuts]
### Breadcrumbs / Back Navigation
[How to navigate back, where breadcrumbs appear]
Keyboard Shortcuts Reference (thorough+):
## Keyboard Shortcuts
| Shortcut | Action |
|----------|--------|
| Cmd+K | Quick switcher |
| Cmd+N | New [item] |
| Cmd+S | Save |
| Escape | Close dialog / cancel |
Troubleshooting (thorough+):
## Troubleshooting
### [Error message or symptom]
**What it means**: [explanation]
**How to fix**: [steps]
### Common Questions
[FAQ generated from what would confuse a new user — based on the documentation process itself]
Admin Guide (exhaustive):
## Admin Guide
### User Management
[How to invite users, set roles, remove access]
### Settings Reference
| Setting | What it does | Default | Recommendation |
[Every setting documented]
### Data Management
[Export, import, backup, delete account]
5. Output Formats
Markdown (default): docs/USER_GUIDE.md
- Relative image paths:
 - GitHub-flavoured markdown — renders on GitHub, in VS Code, in Obsidian
HTML (exhaustive depth, or on request): docs/user-guide.html
- Single self-contained HTML file with Tailwind CDN
- Screenshots as relative paths (not base64 — keeps file size sane)
- Table of contents sidebar with smooth scroll
- Print-friendly CSS (
@media print) - Dark mode support
Screenshot naming: docs/screenshots/NN-section-description.png
- Numbers for sort order:
01-,02-,03- - Section prefix:
01-dashboard-,05-clients-,12-settings- - Descriptive suffix:
-overview.png,-add-form.png,-saved-confirmation.png
6. Mockups and Diagrams
Mix screenshots with diagrams where it helps understanding:
Workflow diagrams (text-based, no external tools):
### How a Client Moves Through the System
New Enquiry → Create Client → Add Policy → Send Renewal → Archive ↓ ↓ ↓ ↓ ↓ [Email] [Client Page] [Policy Page] [Email Outbox] [Archive]
Annotated screenshots: When a screenshot needs callouts, describe them in the text:

The dashboard shows:
- **A** (top left): Your client count and active policies
- **B** (centre): Items needing attention today
- **C** (right): Recent activity feed
UI element reference: For complex pages, a labelled diagram helps:
### Editor Layout
| Area | What it does |
|------|-------------|
| Left panel | Folder tree — organise your notes |
| Centre panel | Note list — shows notes in the selected folder |
| Right panel | Editor — write and preview your note |
| Top bar | Navigation, search (Cmd+K), and view toggles |
Screenshot Quality
- Resolution: 1280x720 (desktop), 375x812 (mobile)
- Data: Realistic data. Not "Test" or "Lorem ipsum". Use the app as it would actually be used.
- Timing: Wait for data to load. No spinners, no skeleton screens in final shots.
- State: Show the page in a useful state — with data populated, relevant section expanded, key feature visible
- Consistency: Same viewport size, same zoom level, same browser throughout
- Dark mode: If documenting dark mode, switch BEFORE taking screenshots — don't mix modes in one section
Autonomy Rules
- Just do it: Navigate pages, take screenshots, read page content, write documentation
- Brief confirmation: Before writing large doc files
- Ask first: Before submitting forms with real data, before clicking delete
- Thorough/exhaustive mode: Skip confirmation for writing files and filling forms with test data
Quality Bar
The documentation should be good enough that:
- A new user can complete any task by following the guide without asking for help
- Every screenshot has context — what am I looking at? What should I do?
- Steps are atomic — one action per numbered step, never "click X and then fill in Y and Z"
- Tips reveal hidden value — shortcuts, power features, things the user wouldn't discover on their own
- Troubleshooting is real — based on actual confusing moments encountered during documentation, not hypothetical FAQs
- It's scannable — headings, screenshots, tables, tips. Nobody reads documentation top-to-bottom. They search for what they need.
Recommended Agent Skills
Expand your agent's capabilities with these related and highly-rated skills.
shadcn-ui
Install and configure shadcn/ui components for React projects. Guides component selection, installation order, dependency management, customisation with semantic tokens, and common UI recipes (forms, data tables, navigation, modals). Use after tailwind-theme-builder has set up the theme infrastructure, when adding components, building forms, creating data tables, or setting up navigation.
walkthrough-video
Generate professional walkthrough videos from app screenshots or live sites using Remotion. Smooth transitions, zoom effects, text overlays, and optional voiceover narration. Produces MP4 videos for demos, product showcases, or documentation. Triggers: 'walkthrough video', 'demo video', 'product video', 'create a video walkthrough', 'remotion video', 'screen recording', 'app demo', 'showcase video', 'generate video from screenshots'.
product-showcase
Generate a comprehensive marketing website for a web app — multi-page with real screenshots, animated GIF walkthroughs, feature deep-dives, and workflow demonstrations. Browses the running app, captures screens and sequences, and produces a deployable site that actually teaches people what the product does. Especially useful for complex or agentic apps that are hard to explain. Triggers: 'showcase site', 'product page', 'show off the app', 'marketing site', 'demo site', 'product showcase', 'explain the app', 'how do I market this'.
design-system
Extract a complete design system from an existing website or screenshot into a DESIGN.md file. Analyses colours, typography, component styles, spacing, and atmosphere through browser automation and HTML inspection. Produces a semantic design system document optimised for consistent page generation. Triggers: 'extract design system', 'design system', 'create DESIGN.md', 'analyse the design', 'what design does this site use', 'extract styles from', 'reverse engineer the design'.
react-patterns
React 19 performance patterns and composition architecture for Vite + Cloudflare projects. 50+ rules ranked by impact — eliminating waterfalls, bundle optimisation, re-render prevention, composition over boolean props, server/client boundaries, and React 19 APIs. Use when writing, reviewing, or refactoring React components. Triggers: 'react patterns', 'react review', 'react performance', 'optimise components', 'react best practices', 'composition patterns', 'why is it slow', 'reduce re-renders', 'fix waterfall'.
react-native
React Native and Expo patterns for building performant mobile apps. Covers list performance, animations with Reanimated, navigation, UI patterns, state management, platform-specific code, and Expo workflows. Use when building or reviewing React Native code. Triggers: 'react native', 'expo', 'mobile app', 'react native performance', 'flatlist', 'reanimated', 'expo router', 'mobile development', 'ios app', 'android app'.
Didn't find tool you were looking for?