Agent Skill Authoring & TDD FAQs

Question 1

What is a Claude Code Skill?

Accepted Answer

A Claude Code Skill is a specialized capability or reference guide, stored as a SKILL.md file, that provides domain-specific guidance and implementation patterns to enhance Claude's behavior.

Question 2

Where are personal Claude Code skills stored?

Accepted Answer

Personal skills for Claude Code are typically stored in the ~/.claude/skills directory on your local machine.

Question 3

How do I use TDD to write a skill?

Accepted Answer

You follow a Red-Green-Refactor cycle: run a baseline scenario where the agent fails, write the skill documentation, verify the agent now complies with the skill, and finally refactor for clarity and token efficiency.

Question 4

What is Claude Search Optimization (CSO)?

Accepted Answer

CSO involves using rich triggering descriptions, keyword coverage, and descriptive naming to ensure Claude can find and load the correct skill for any given task.

Question 5

Why shouldn't I summarize the workflow in the skill description?

Accepted Answer

If the description summarizes the workflow, Claude may follow the abbreviated description instead of reading the full skill content, potentially missing critical steps or logic.

Agent Skill Authoring & TDD

Key Features

Use Cases

Agent Skill Authoring & TDD

Key Features

Use Cases