skill-creator

1# Skill Creator
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3Create, evaluate, and iterate on high-quality agent skills. This skill covers the whole lifecycle: planning what the skill should do, writing SKILL.md and reference files, scoring quality against a rubric, and iterating until the skill meets production standards.
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5**Philosophy:** A great skill is precise, not long. Its description routes the right requests to it. Its body gives the model the context it can't get anywhere else — the environment, tool contracts, defaults, domain judgment, and the reasons behind each constraint — and leaves out what a capable model already does on its own. Current Claude models follow instructions closely and literally, so every line gets acted on: an over-scripted or shouting skill produces rigid, over-cautious output, while a clear goal and quality bar let the model plan the work itself. `references/writing-guide.md` covers this in detail.
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7**Runtime adaptation:** Skills that touch external tools should detect what is installed, authenticated, and reachable at runtime and adapt, rather than assuming a single method. Offer fallback paths where real alternatives exist. See `references/dynamic-calling.md` for the pattern catalog.
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9---
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11## Step 1: Understand What the User Wants
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13Classify the request into one of these modes:
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15| User Intent | Mode | Jump To |
16|---|---|---|
17| Create a brand-new skill | **Create** | Step 2 |
18| Improve / fix an existing skill | **Improve** | Step 6 |
19…