# Research

> Investigate a question against high-trust primary sources and capture the findings as a cited Markdown file. Use when the user wants a topic researched, docs or API facts gathered, or reading legwork delegated.

- Skill: `rengwu/research` (Agent Skill)
- Install (CLI): `npx skillmds@latest add rengwu/research`
- Raw SKILL.md: https://api.skillmd.com/api/skills/rengwu/research/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Docs & Writing
- Author: rengwu (https://skillmd.com/u/rengwu)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/rengwu/research

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If your environment supports background subagents, spin one up to do the research so you keep working while it reads. Otherwise, do the research yourself in this session.

The job:

1. Investigate the question against **primary sources** — official docs, source code, specs, first-party APIs — not a secondary write-up of them. Follow every claim back to the source that owns it.
2. Write the findings to a single Markdown file, citing each claim's source.
3. Save it where the repo already keeps such notes; match the existing convention. If there is no convention, save to `.plan/research/<slug>.md` and say where.