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Create your Claude Agent SDK skill in one prompt, then learn to improve it throughout the chapter
Passed 21 of 22 test cases with the skill, and 5 of 22 without it.
and 20 more in the full report
17 fixed4 passed either way0 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 17 test cases the skill fixed. Same model, same prompt, with and without the skill.
How does the prescribed prompt describe the Claude Agent SDK in parenthetical text?
| Checked | Without skill | With skill |
|---|---|---|
| Describes it as Anthropic's agent framework. | Missed | Passed |
The instructions your model reads when the skill loads.
Before learning Anthropic's Claude Agent SDK—the architecture behind Claude Code itself—you'll own a Claude Agent SDK skill.
cd claude-code-skills-lab
claude
Copy and paste this prompt:
Using your skill creator skill create a new skill for Claude Agent SDK
(Anthropic's agent framework). I will use it to build AI agents from
hello world to professional production systems. Use context7 skill to
study official documentation and then build it so no self assumed knowledge.
Claude will:
Your skill appears at .claude/skills/claude-agent-sdk/.
test cases passed, vs 5 / 22 without
Published skills whose descriptions closely match this one, with their headline benchmark lift.
More skills from the same source and nearby in the registry, with their headline benchmark lift.