Doc Expander

Doc Expander

Research and expand documentation using DeepWiki and Context7 MCP servers.

Workflow Overview

┌─────────────────┐     ┌──────────────────┐     ┌─────────────────┐
│  1. Analyze     │────>│  2. Generate     │────>│  3. Research    │
│  Existing Doc   │     │  Questions       │     │  (DeepWiki/C7)  │
└─────────────────┘     └──────────────────┘     └─────────────────┘
                                                         │
                                                         ▼
┌─────────────────┐     ┌──────────────────┐     ┌─────────────────┐
│  6. Output      │<────│  5. Structure    │<────│  4. Synthesize  │
│  Final Doc      │     │  Content         │     │  Findings       │
└─────────────────┘     └──────────────────┘     └─────────────────┘

Quick Start

Expand Existing Documentation

User: Expand this README with more details about the API

1. Read the existing document
2. Identify gaps and generate questions
3. Research using DeepWiki/Context7
4. Synthesize and append findings

Create New Documentation

User: Create comprehensive docs for the fastapi library

1. Generate foundational questions
2. Research architecture, patterns, examples
3. Structure into logical sections
4. Output complete documentation

Research Tools

DeepWiki (GitHub Repositories)

Best for: Repository architecture, implementation details, source code patterns

# Get documentation structure
mcp__deepwiki-mcp__read_wiki_structure(repoName="owner/repo")

# Get full documentation
mcp__deepwiki-mcp__read_wiki_contents(repoName="owner/repo")

# Ask specific questions
mcp__deepwiki-mcp__ask_question(
    repoName="owner/repo",
    question="How does the authentication system work?"
)

When to use DeepWiki:

• Open source libraries on GitHub
• Understanding implementation details
• Finding code examples from source
• Architecture decisions and patterns

Context7 (Library Documentation)

Best for: Official docs, API references, best practices

# Resolve library ID first
mcp__context7-mcp__resolve-library-id(libraryName="fastapi")

# Then fetch documentation
mcp__context7-mcp__get-library-docs(
    context7CompatibleLibraryID="/tiangolo/fastapi",
    topic="dependency injection",
    mode="code"  # or "info" for conceptual content
)

When to use Context7:

• Official library documentation
• API references and signatures
• Best practices and guides
• Version-specific features

Choosing the Right Source

Question Generation

Generate targeted questions to guide research. See references/questions.md for templates.

Question Categories

1. Foundation - What is it? Core concepts?
2. Architecture - How is it structured? Key components?
3. Usage - How to use it? Common patterns?
4. Integration - How to integrate? Dependencies?
5. Advanced - Edge cases? Performance? Security?
6. Troubleshooting - Common issues? Debugging?

Example Questions for a Library

## Foundation
- What problem does {library} solve?
- What are the core concepts?
- How does it compare to alternatives?

## Architecture
- What is the high-level architecture?
- What are the main components/modules?
- How do components interact?

## Usage
- How do I install and configure it?
- What's the basic usage pattern?
- What are common use cases?

## Integration
- What are the dependencies?
- How does it integrate with {framework}?
- Are there official plugins/extensions?

## Advanced
- How do I handle {specific scenario}?
- What are performance considerations?
- What security practices are recommended?

Research Strategy

For comprehensive documentation, use this multi-pass approach:

Pass 1: Overview (Context7 info mode)

mcp__context7-mcp__get-library-docs(
    context7CompatibleLibraryID=lib_id,
    mode="info"  # Conceptual overview
)

Pass 2: Code Examples (Context7 code mode)

mcp__context7-mcp__get-library-docs(
    context7CompatibleLibraryID=lib_id,
    topic="specific_topic",
    mode="code"  # API and examples
)

Pass 3: Implementation Details (DeepWiki)

mcp__deepwiki-mcp__ask_question(
    repoName="owner/repo",
    question="How is {feature} implemented internally?"
)

Pass 4: Fill Gaps

For any remaining questions, query both sources with specific topics.

Output Patterns

Expanding Existing Docs

When expanding, preserve existing content and add:

• Missing sections identified from questions
• Code examples from research
• Links to official resources
• Troubleshooting tips

Creating New Docs

Structure new documentation with:

# {Library/Topic} Documentation

## Overview
[From Context7 info mode]

## Installation
[From Context7 code mode]

## Quick Start
[Synthesized from both sources]

## Core Concepts
[From both sources]

## API Reference
[From Context7 code mode]

## Examples
[From DeepWiki + Context7]

## Advanced Topics
[From DeepWiki questions]

## Troubleshooting
[From both sources]

## Resources
- [Official Docs](url)
- [GitHub](url)

Best Practices

1. Always resolve library ID first before using Context7
2. Use both sources for comprehensive coverage
3. Start broad, then specific - overview first, then details
4. Preserve existing content when expanding
5. Cite sources with links when possible
6. Use pagination in Context7 (page=1, page=2) for more content
7. Check multiple topics for thorough coverage

Workflow Scripts

Use scripts/expand_docs.py for automated expansion:

# Expand a markdown file
python scripts/expand_docs.py docs/api.md --library fastapi

# Generate new documentation
python scripts/expand_docs.py --new --library pydantic --output docs/pydantic.md

# Generate questions only
python scripts/expand_docs.py docs/readme.md --questions-only

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