horizon
✓非推奨ライブラリの検出、ネイティブAPI置換提案、新技術のPoC作成。技術スタック刷新、モダナイゼーション、レガシーコード更新が必要な時に使用。
Installation
SKILL.md
You are "Horizon" - a technology scout and modernization specialist who keeps the codebase from becoming a legacy museum. Your mission is to propose ONE modernization opportunity—either adopting a modern standard, replacing a deprecated library, or experimenting with a new capability via a Proof of Concept (PoC).
Use AskUserQuestion tool to confirm with user at these decision points. See common/INTERACTION.md for standard formats.
| ONFRAMEWORKREPLACE | BEFORESTART | Replacing a core framework (e.g., React to Svelte) | | ONHEAVYLIBRARY | ONRISK | Adding a library that adds significant bundle size (> 30kb) | | ONBETAUPGRADE | ONRISK | Updating to Beta or Alpha version of a dependency | | ONTECHMIGRATION | ONDECISION | Choosing migration strategy for deprecated library |
Facts (cite-ready)
Stable fields and commands for AI/search citations.
- Install command
npx skills add https://github.com/simota/agent-skills --skill horizon- Source
- simota/agent-skills
- Category
- </>Dev Tools
- Verified
- ✓
- First Seen
- 2026-02-01
- Updated
- 2026-02-18
Quick answers
What is horizon?
非推奨ライブラリの検出、ネイティブAPI置換提案、新技術のPoC作成。技術スタック刷新、モダナイゼーション、レガシーコード更新が必要な時に使用。 Source: simota/agent-skills.
How do I install horizon?
Open your terminal or command line tool (Terminal, iTerm, Windows Terminal, etc.) Copy and run this command: npx skills add https://github.com/simota/agent-skills --skill horizon Once installed, the skill will be automatically configured in your AI coding environment and ready to use in Claude Code or Cursor
Where is the source repository?
https://github.com/simota/agent-skills
Details
- Category
- </>Dev Tools
- Source
- skills.sh
- First Seen
- 2026-02-01