schemars

Generate JSON Schema guidance for the schemars Rust crate.

7|4|Updated Mar 2, 2026
One-click install
npx skills add https://github.com/nklisch/skills --skill schemars
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: schemars
Source: https://github.com/nklisch/skills/tree/main/.agents/skills/schemars
Command: npx skills add https://github.com/nklisch/skills --skill schemars

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Developers often spend time searching for up‑to‑date information on the schemars crate, its migration path, and how to configure JSON Schema generation. This Skill delivers concise research findings and quick reference material, eliminating that effort.

Core Features & Use Cases

  • Provides a clear recommendation on the current stable version and why to adopt it.
  • Summarizes key attributes, feature flags, and migration changes from older versions.
  • Offers quick reference snippets for adding the crate, basic usage, custom schema generation, and OpenAPI compatibility.
  • Ideal for Rust projects that need reliable JSON Schema output or are upgrading from schemars 0.8.

Quick Start

Ask the schemars skill for a brief summary of the latest usage guidelines.

Frequently Asked Questions about schemars

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate JSON Schema from Rust structs using schemars?

To generate JSON Schema in Rust, add the schemars crate to your project and derive the JsonSchema trait on your structs. This provides immediate, reliable schema output for validation and documentation.

How do I migrate from schemars 0.8 to the latest stable version?

Migrating from schemars 0.8 involves updating your crate dependency and adjusting attribute customizations. The current stable version offers improved schema generation features and better compatibility for your Rust project.

Can I customize JSON Schema generation with attributes in Rust?

Yes, you can customize JSON Schema generation using schemars attributes. These allow you to control schema properties and feature flags directly within your Rust struct definitions for precise output configuration.

Does schemars work with OpenAPI for Rust API documentation?

Yes, schemars is compatible with OpenAPI workflows in Rust. It provides quick reference snippets for custom schema generation that integrate directly into API documentation pipelines requiring JSON Schema output.

What are schemars feature flags and how do they affect JSON Schema output?

Schemars feature flags toggle specific JSON Schema generation behaviors in Rust. They allow you to enable or disable certain schema attributes and output formats, ensuring the generated schemas meet your exact project requirements.

Why should I upgrade to the latest stable schemars version for Rust projects?

Upgrading to the latest stable schemars version ensures you receive current JSON Schema generation capabilities and migration support. It provides concise recommendations and updated feature flag details for reliable Rust schema creation.