Skills for Real Engineers. Straight from my .agents directory.
skill-creator
Agent skill fromCreminiAI/skillpack
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
How to install skill-creator
npx skills add CreminiAI/skillpack# or add only this skill to Claude Code: copy the folder
templates/builtin-skills/skill-creator/
# into
~/.claude/skills/skill-creator/ (all projects)
.claude/skills/skill-creator/ (one project)
1# Skill Creator23Create new skills and iteratively improve them inside this SkillPack. Determine where the user is in the create → draft → test → improve cycle and help them move forward.45## Pack-specific rules67All skills live under `{{SKILLS_PATH}}/<skill-name>/SKILL.md` and config is at `{{PACK_CONFIG_PATH}}`. These paths override any generic advice. Never create skills in the current workspace directory — always use `{{SKILLS_PATH}}`.89## Creating a skill1011### Capture intent1213Extract answers from the current conversation first, then fill gaps with targeted questions. Confirm before writing the first draft:14151. What should this skill enable the model to do?162. When should this skill trigger?173. What output should it produce?184. Does the user want a lightweight draft, or a tested and iterated skill?1920Clarify edge cases, input/output formats, success criteria, and dependencies as needed before writing test prompts.2122### Write the skill2324Create the skill at `{{SKILLS_PATH}}/<skill-name>/SKILL.md`. Example template:2526```yaml27---28name: example-skill29description: "Analyze competitor pricing pages and generate a comparison matrix. Use when the user wants to benchmark pricing tiers, feature gaps, or positioning against specific competitors."30---3132# Example Skill3334## Workflow35361. Collect the target URLs from the user.372. Extract pricing tiers, features, and limits from each page.383. Generate a comparison matrix as a markdown table.3940## Output41…
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