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Valibot

open-circle/agent-skills

This skill helps Claude work with Valibot, the modular schema validation library that's a lighter alternative to Zod. The key thing to know is that Valibot's API is fundamentally different from Zod despite solving the same problem. Where Zod chains methods, Valibot uses pipelines and function composition. The skill includes a detailed comparison table and common mistake examples, which is smart because mixing up the two syntaxes is easy to do. Use this when you need schema validation and want the type safety without Zod's bundle size, or when you're migrating existing validation code. The pipeline approach takes a minute to internalize but feels natural once you get it.

skills.sh installs
2.2K
GitHub stars
17
last updated
Aug 21, 2026
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Install

$ npx -y skills add open-circle/agent-skills --skill valibot --agent claude-code

Installs into .claude/skills of the current project.

Files

Valibot

This skill helps you work effectively with Valibot, the modular and type-safe schema library for validating structural data.

When to use this skill

  • When the user asks about schema validation with Valibot
  • When creating or modifying Valibot schemas
  • When parsing or validating user input
  • When the user mentions Valibot, schema, or validation
  • When migrating from Zod to Valibot

CRITICAL: Valibot vs Zod — Do Not Confuse!

Valibot and Zod have different APIs. Never mix them up!

Key Differences

SKILL.md on GitHub

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Details

Repository
github.com/open-circle/agent-skills
Category
AI & Agent Building
First seen
Jun 3, 2026

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