6 posts

Apr 16, 2026 · 16 min read

Evaluation-First Skill Development: Write Tests Before Instructions

Apr 16, 2026 · 13 min read

When Do I Need a Rubric vs Just Using evals.json?

Apr 16, 2026 · 10 min read

What Is a Rubric in a Claude Code Skill?

Apr 16, 2026 · 9 min read

What Is Evaluation-First Development for Claude Code Skills?

Apr 16, 2026 · 10 min read

What Is an evals.json File in Claude Code Skills?

Apr 16, 2026 · 11 min read

What Are Evals in Claude Code Skills?