This is a structured research framework that treats GitHub repo analysis like an investigation assignment. It runs through four rounds: GitHub API calls for raw metrics, broad web searches for context, targeted deep dives with web fetching, and commit history analysis. The output is a markdown report with executive summary, timeline, Mermaid diagrams, and confidence scores for each claim. It's opinionated about citation format and insists on inline sources, which is good because LLM research tools love to hallucinate provenance. Useful when you need to understand a project's history, compare it to alternatives, or build a technical brief. The gantt charts and architecture diagrams feel a bit corporate, but the four round structure keeps the research from spiraling.
npx skills add https://github.com/bytedance/deer-flow --skill github-deep-research