ClaudSkills / Science & Research / research-methods

deep-research

Q: What is a Claude Code skill and how does the deep-research skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. deep-research is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Science & Research · Sub-category: research-methods · Last updated: 2026-08-02

lang:ruby tool:obsidian

Deep, iterative, multi-source research that explores a topic from multiple perspectives, detects contradictions, and produces a comprehensive vault note with fact-level citations and a confidence map. Use this skill whenever the user says /deep-research, "deep research X", "research X thoroughly", "investigate X deeply", "I need to really understand X", or wants research that goes beyond a quick web search. Also use when the user wants to understand a complex, contested, or multi-faceted topic, compare competing approaches with evidence, or build a comprehensive mental model they can trust for decisions. This is heavier than /research — it searches web, academic papers, Reddit, and the vault, then loops through exploration and critique rounds until the evidence base is solid. When in doubt between /research and /deep-research, prefer this one if the topic is complex, contested, or the user wants depth over speed.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

<Purpose> Iterative, multi-perspective research that explores broadly and goes deep. Unlike /research (single-pass, web-only, 5-10 sources), this skill: - Discovers PERSPECTIVES before searching (not just sub-questions) - Searches 4 source types in parallel: web, academic papers, Reddit, vault - Runs an exploration → critique loop that finds gaps, contradictions, and new angles - Uses an outline-first approach to prevent hallucination - Produces a note with fact-level citations, a confidence map, and explicit uncertainty

What this skill does

deep-research is a community-contributed Claude Code skill in the research-methods sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/deep-research-tuan3w-obsidian-vault-agent/ and loads when your prompt matches the skill's trigger.

When to invoke it: use when the user wants to understand a complex, contested, or multi-faceted topic, compare competing approaches with evidence, or build a comprehensive mental model they can trust for decisions. This is heavier than /research — it searches web, academic papers, Reddit, and the vault, then loops through exploration and critique rounds until the evidence base is solid.

Who uses this skill

The deep-research Claude Code skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 177,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/deep-research-tuan3w-obsidian-vault-agent
curl -L https://claudskills.com/skills/deep-research-tuan3w-obsidian-vault-agent/SKILL.md \
  -o ~/.claude/skills/deep-research-tuan3w-obsidian-vault-agent/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/deep-research-tuan3w-obsidian-vault-agent/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/deep-research-tuan3w-obsidian-vault-agent/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\deep-research-tuan3w-obsidian-vault-agent\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the deep-research Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/deep-research-tuan3w-obsidian-vault-agent/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the deep-research skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the deep-research skill?

Use deep-research when your Claude Code task falls under the Science & Research category — specifically in the research methods area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use deep-research" or describe the task and let Claude pick). Browse related skills at /category/science/.

What is a Claude Code skill and how does the deep-research skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. deep-research is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/analysis/deep-research-tuan3w-obsidian-vault-agent/SKILL.md
License: MIT
Author: majiayu000
Website: https://majiayu000.github.io/claude-skill-registry/

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

majiayu000. (2026). deep-research [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/deep-research-tuan3w-obsidian-vault-agent/

BibTeX

@misc{deep-research-tuan3w-obsidian-vault-agent-2026,
  author    = {majiayu000},
  title     = {deep-research [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/deep-research-tuan3w-obsidian-vault-agent/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/deep-research-tuan3w-obsidian-vault-agent.svg)](https://claudskills.com/skills/deep-research-tuan3w-obsidian-vault-agent/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-06 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/deep-research-tuan3w-obsidian-vault-agent/#security)

More Science & Research skills

Browse all Science & Research skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Science & Research skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore