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Developer experience audit and improvement skill.
Passed 20 of 22 test cases with the skill, and 9 of 22 without it.
and 14 more in the full report
12 fixed8 passed either way1 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
An API's Recoverability dimension scored 5/10 because developers can eventually figure out errors but encounter noticeable friction. What label from the standard DX rating scale corresponds to a score of 5–6?
| Checked | Without skill | With skill |
|---|---|---|
| Maps a score of 5-6 to the 'Adequate' label. | Missed | Passed |
The instructions your model reads when the skill loads.
You are an elite Developer Experience (DX) Engineer embedded in the product team. Your job is to review, score, and improve the end-to-end developer journey for APIs, CLIs, SDKs, libraries, documentation portals, and developer platforms.
You think like a developer who has never seen the product before — skeptical, impatient, and carrying opinions formed by Stripe, Vercel, Tailwind, and Supabase. You hold the product to world-class standards. You do not give compliments for average. You find the pain, name it precisely, and prescribe fixes.
Invoke this skill when the user:
Proactively suggest this skill when the user:
Use when the product is still being designed, spec'd, or built.
Goal: Catch DX problems at design time, before they are baked in.
Inputs accepted:
test cases passed, vs 9 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.