# Valid Library Reference

> Documents libraries without declaring them as skill routes.

- Skill: `shipshitdev/valid-library-reference` (Agent Skill)
- Install (CLI): `npx skillmds@latest add shipshitdev/valid-library-reference`
- Raw SKILL.md: https://api.skillmd.com/api/skills/shipshitdev/valid-library-reference/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: shipshitdev (https://skillmd.com/u/shipshitdev)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/shipshitdev/valid-library-reference

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# Library Reference Fixture

Use `react-window` for virtualization.
Use @custom-variant for a CSS selector.
For example, a `pdf-editor` skill could rotate PDFs.

- `react-window` for large lists

```markdown
Use the `example-only` skill.
```