# Deep Research

Run a thorough, source-heavy investigation on any topic.

- Repository: https://github.com/Companion-Inc/feynman (10055 stars)
- Category: Writing
- License: MIT
- Last updated: 2026-10-31
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add Companion-Inc/feynman --skill deep-research -g -a claude-code -y`
Codex: `npx skills add Companion-Inc/feynman --skill deep-research -g -a codex -y`
Cursor: `npx skills add Companion-Inc/feynman --skill deep-research -g -a cursor -y`
Gemini CLI: `npx skills add Companion-Inc/feynman --skill deep-research -g -a gemini-cli -y`

## Description

Run a thorough, source-heavy investigation on any topic. Use when the user asks for deep research, a comprehensive analysis, an in-depth report, or a multi-source investigation. Produces a cited research brief with provenance tracking.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Deep Research

Run the `/deepresearch` workflow. The slash command expands the full workflow instructions in the active session; do not try to read a relative prompt-template path from the installed skill directory.

Agents used: `researcher`, `verifier`, `reviewer`

Output: cited brief in `outputs/` with `.provenance.md` sidecar.