building-github-indexlisted
Install: claude install-skill oaustegard/claude-skills
# Building GitHub Index
Create markdown indexes of GitHub repositories optimized for Claude project knowledge. Indexes enable retrieval via GitHub API with semantic descriptions for effective matching.
## Quick Start
```bash
# Documentation repos (markdown/notebooks)
python scripts/github_index.py owner/repo -o index.md
# Code repos (extract symbols via tree-sitter)
python scripts/github_index.py owner/repo --code-symbols -o index.md
# Multiple repos combined
python scripts/github_index.py owner/repo1 owner/repo2 -o combined.md
```
## Script Options
| Flag | Description |
|------|-------------|
| `-o, --output` | Output file (default: `github_index.md`) |
| `--token` | GitHub PAT; also reads `GITHUB_TOKEN` env |
| `--include-patterns` | Only index matching globs: `"docs/**" "src/**"` |
| `--exclude-patterns` | Skip matching globs: `"test/**"` |
| `--max-files` | Cap files per repo (default: 200) |
| `--skip-fetch` | Tree only, no content fetch (fast, filename-only descriptions) |
| `--code-symbols` | Include code files, extract function/class names via tree-sitter |
## Description Extraction Priority
1. **YAML frontmatter** - `title:` and `description:` fields
2. **Markdown headings** - First h1/h2 as title, subsequent as topics
3. **Notebook cells** - First markdown cell heading
4. **Code symbols** - Public function/class names (with `--code-symbols`)
5. **Path-derived** - Convert filename to words (fallback)
## When Descriptions Fail
Some repos have stub files (l