create-agent-skills

<essential_principles>
## How Skills Work

Skills are modular, filesystem-based capabilities that provide domain expertise on demand. This skill teaches how to create effective skills.

### 1. Skills Are Prompts

All prompting best practices apply. Be clear, be direct, use XML structure. Assume Claude is smart - only add context Claude doesn't have.

### 2. SKILL.md Is Always Loaded

When a skill is invoked, Claude reads SKILL.md. Use this guarantee:
- Essential principles go in SKILL.md (can't be skipped)
- Workflow-specific content goes in workflows/
- Reusable knowledge goes in references/

### 3. Router Pattern for Complex Skills

```
skill-name/
├── SKILL.md              # Router + principles
├── workflows/            # Step-by-step procedures (FOLLOW)
├── references/           # Domain knowledge (READ)
├── templates/            # Output structures (COPY + FILL)
└── scripts/              # Reusable code (EXECUTE)
```

SKILL.md asks "what do you want to do?" → routes to workflow → workflow specifies which references to read.

**When to use each folder:**
- **workflows/** - Multi-step procedures Claude follows
- **references/** - Domain knowledge Claude reads for context
- **templates/** - Consistent output structures Claude copies and fills (plans, specs, configs)
- **scripts/** - Executable code Claude runs as-is (deploy, setup, API calls)

### 4. Pure XML Structure

No markdown headings (#, ##, ###) in skill body. Use semantic XML tags:
```xml
<objective>...</objective>
<process>...</process>
<success_criteria>...</success_criteria>
```

Keep markdown formatting within content (bold, lists, code blocks).

### 5. Progressive Disclosure

SKILL.md under 500 lines. Split detailed content into reference files. Load only what's needed for the current workflow.
</essential_principles>

<intake>
What would you like to do?

1. Create new skill
2. Audit/modify existing skill
3. Add component (workflow/reference/template/script)
4. Get guidance

**Wait for response befor