# Ontology

> Ontology Skill

- Skill: `alanliuyes/ontology` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add alanliuyes/ontology`
- Raw SKILL.md: https://api.skillmd.com/api/skills/alanliuyes/ontology/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: alanliuyes (https://skillmd.com/u/alanliuyes)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/alanliuyes/ontology

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# Ontology Skill

Typed knowledge graph for structured agent memory and composable skills. Use when creating/querying entities (Person, Project, Task, Event, Document), linking related objects, enforcing constraints, planning multi-step actions as graph transformations, or when skills need to share state. Trigger on "remember", "what do I know about", "link X to Y", "show dependencies", entity CRUD, or cross-skill data access.

## Usage

Use this skill for:
- Creating/querying entities
- Linking related objects
- Enforcing constraints
- Planning multi-step actions
- Cross-skill data sharing

## Entity Types

- Person
- Project
- Task
- Event
- Document