How do I install the Ontology Extract Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/ontology-extract/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

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.

ClaudSkills / General / general-misc

Ontology Extract

Category: General · Sub-category: general-misc · Last updated: 2026-05-21

User gave you prose — a meeting note, a PR description, an RFC draft, a chat log, a paragraph from a Notion page — and asks "extract ontology from this" or similar. Read the prose, cross-check the existing vault with `similar_nodes` / `find_evidence`, then propose a small set of candidate nodes/edges, ask the user to pick which to land, and only then call `add_concept` / `add_relation` / `patch_concept`. Skip when the prose is just a personal note with no ontology-shaped concepts.

From the source SKILL.md

이 프로젝트의 mission v3 한 줄: 하나의 codebase, 하나의 ontology, 개발자 + AI agent 가 같이 키운다. /ontology-sync 가 코드 변경 에서 vault 가 자라게 했다면, 이 skill 은 prose (회의록 · PR 본문 · RFC 초안 · 채팅 로그 · Notion 한 단락) 에서 자라게 한다. Obsidian 처럼 [[link]] 만 자라는 게 아니라 typed ontology 노드 가 자란다 — LLM 이 매개라서 가능한 흐름.

What this skill does

Ontology Extract is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/ontology-extract/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Ontology Extract Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ 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/ontology-extract
curl -L https://claudskills.com/skills/ontology-extract/SKILL.md \
  -o ~/.claude/skills/ontology-extract/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/ontology-extract/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/ontology-extract/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\ontology-extract\SKILL.md on Windows. See the full install guide for step-by-step instructions.

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

Attribution & license

Source: https://github.com/wlsdks/oh-my-ontology/blob/HEAD/.claude/skills/ontology-extract/SKILL.md
License: MIT
Author: wlsdks

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Ontology Extract

From the source SKILL.md

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

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