# Skill Suitability Criteria

Evaluation criteria for determining if a need should become an OurDigital Claude Skill.

## Core Criteria

### 1. Clear Trigger (Required)

The skill must have an unambiguous activation condition.

**OurDigital Rule**: Must include "ourdigital" keyword to avoid conflicts with other skills.

| Good Triggers | Bad Triggers |
|---------------|--------------|
| "ourdigital 블로그 작성" | "블로그 써줘" |
| "ourdigital research prompt" | "research this" |
| "ourdigital 스킬 만들기" | "make a skill" |

### 2. Focused Scope

Each skill should do 1-3 things well (Unix philosophy).

**Word Limit**: SKILL.md body should be 800-1,200 words.

| Good Scope | Over-scoped |
|------------|-------------|
| Blog draft generation + SEO meta | Blog + Social + Email + Analytics |
| Visual prompt creation | Design + Development + Deployment |

### 3. Reusable Resources

Skill should bundle valuable resources worth maintaining.

| Resource Type | Examples |
|---------------|----------|
| Scripts | `export_to_ulysses.py`, `sync_notion.py` |
| Templates | `blog-template.md`, `research-plan.md` |
| References | `style-guide.md`, `api-config.md` |
| Assets | `brand-colors.json`, `prompt-library.md` |

### 4. Domain Knowledge

Skill should encode knowledge Claude doesn't have natively.

| Good Domain Knowledge | Not Skill-Worthy |
|-----------------------|------------------|
| OurDigital brand voice rules | Generic writing tips |
| Ghost CMS API specifics | Standard markdown |
| Jamie clinic terminology | Common Korean |

### 5. Clear Boundaries

Skill should not overlap with existing skills.

**Check Against**:
- Other ourdigital-* skills
- Existing custom-skills (SEO, GTM, Jamie, etc.)
- Built-in Claude capabilities

## Scoring Matrix

| Criterion | Weight | Score (0-2) |
|-----------|--------|-------------|
| Clear trigger | 25% | |
| Focused scope | 20% | |
| Reusable resources | 20% | |
| Domain knowledge | 20% | |
| Clear boundaries | 15% | |

**Threshold**: Score ≥ 1.2 (60%) to proceed with skill creation.

## Decision Flow

```
Is there a clear "ourdigital" trigger?
├── No → Suggest using generic Claude or other skill
└── Yes ↓

Is scope focused (1-3 functions)?
├── No → Split into multiple skills
└── Yes ↓

Are there reusable resources?
├── No → Consider if prompt is sufficient
└── Yes ↓

Does it encode domain knowledge?
├── No → May not need a skill
└── Yes ↓

No overlap with existing skills?
├── No → Merge with existing or differentiate
└── Yes → CREATE THE SKILL
```

## Alternatives to Skills

If criteria not met, consider:

| Alternative | When to Use |
|-------------|-------------|
| CLAUDE.md directive | Project-specific instructions |
| Prompt library | Reusable prompts without structure |
| MCP tool | API integration without workflow |
| Existing skill extension | Adding to current skill |