Agent skill
documentation-generator
Generate and update project documentation including README, LLM-OVERVIEW, and ADRs. Ensures docs match current code state. Use when user says 'update docs', 'write README', 'generate documentation', or 'ADR'.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/documentation-generator
SKILL.md
Documentation Generator
You are an expert at creating clear, useful project documentation.
When To Use
- After major feature / milestone completion
- User asks "Update docs for this"
- User asks "Write the README / ADR / API docs"
- Before handing off to another engineer/agent
Inputs
- Current codebase
- Existing docs (if any)
- PRD + feature plan(s)
Outputs
Updated:
README.md(Quick Start, features, limitations)LLM-OVERVIEW.md(architecture, current state)- Optional new ADR(s) for decisions
Workflow
1. Scan Project
- Identify main entry points
- List main modules and responsibilities
- Note current state vs documented state
2. Update README
Ensure README has:
- One-line description
- Problem / solution
- Quick Start (≤5 commands)
- Storage choice & upgrade trigger
- Known limitations
3. Update LLM-OVERVIEW
Ensure reality matches code:
- Status
- Current state
- Architecture decisions
- Recent changes
4. ADRs for Major Decisions
For each big decision, write ADR using template.
README Template
# [Project Name] - [One-line description]
**Status**: [In Development / Alpha / Beta / Production]
**Current Tier**: [Storage tier / Deployment tier]
**Upgrade Trigger**: [When to upgrade]
## What This Does
[Problem → Solution in 2-3 sentences]
## Quick Start
\`\`\`bash
git clone [repo]
cd [project]
./scripts/setup.sh
./scripts/start.sh
\`\`\`
## Features
- [Feature 1]
- [Feature 2]
## Configuration
[Environment variables or config files]
## Known Limitations
- [Limitation 1]
- [Limitation 2]
LLM-OVERVIEW Template
# LLM-OVERVIEW: [Project Name]
> Complete context for any LLM to understand this project.
> **Last Updated**: [DATE]
> **ONE_SHOT Version**: 3.1
## 1. WHAT IS THIS PROJECT?
### One-Line Description
[A tool that does X for Y people]
### The Problem It Solves
[What's painful without this?]
### Current State
- **Status**: [In Development / Alpha / Beta / Production]
- **Version**: [X.Y.Z]
- **Last Milestone**: [What was accomplished]
- **Next Milestone**: [What's being worked on]
## 2. ARCHITECTURE OVERVIEW
### Tech Stack
Language: [Python 3.11 / Node 20 / etc.]
Framework: [FastAPI / Express / etc.]
Database: [SQLite / PostgreSQL / etc.]
Deployment: [Local / systemd / Docker]
### Key Components
| Component | Purpose | Location |
|-----------|---------|----------|
| [Component] | [What it does] | [path] |
## 3. KEY FILES
- `src/main.py` - Entry point
- `src/models.py` - Data models
- `scripts/` - Automation scripts
## 4. CURRENT STATE
### What Works
- [Feature 1]
### What's In Progress
- [Feature 2 - 50%]
### What's Broken
- [Issue 1 - workaround]
## 5. HOW TO WORK ON THIS PROJECT
\`\`\`bash
./scripts/setup.sh
./scripts/start.sh
pytest tests/
\`\`\`
ADR Template (Nygard Format)
# ADR-[NUMBER]: [Title]
**Date**: YYYY-MM-DD
**Status**: [Proposed | Accepted | Deprecated | Superseded]
## Context
[What is the issue we're facing?]
## Decision
[What is the change we're proposing?]
## Rationale
[Why is this the best approach?]
## Consequences
### Positive
- [Benefit 1]
### Negative
- [Trade-off 1]
## Alternatives Considered
- Alternative 1: [Description] - Rejected because [reason]
Anti-Patterns
- Generating generic docs that don't match the code
- Duplicating content instead of pointing to canonical sections
- Outdated Quick Start commands
- Missing version/status information
Keywords
docs, documentation, README, LLM-OVERVIEW, ADR, generate docs, update docs
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