cost-analysis

Files (12)

• SKILL.md
• __init__.py
• __main__.py
• FIXTURES.md · fixtures/
• expected.json · fixtures/happy_path/
• spirits.md · fixtures/happy_path/inventory/
• current.md · fixtures/happy_path/menu/
• expected.json · fixtures/warn_case/
• current.md · fixtures/warn_case/menu/
• main.py
• manifest.toml
• test_main.py

SKILL.md (first lines)

# Cost Analysis

Reads the current menu and inventory files to calculate pour cost per drink, category COGS, and margin percentages. Flags items with high pour costs (>30%) or low margins (<$8).

## When to Use

- When reviewing menu pricing decisions
- Before adjusting prices on cocktails or spirits
- Monthly cost analysis for the bar

## Procedure

```bash
python -m skills.cost_analysis --format json
python -m skills.cost_analysis --format json --category cocktails
```

Optional: `--category all|beer|spirits|wine|cocktails` (defaults to all).

### Exit Codes

| Code | Meaning |
|------|---------|
| 0 | OK, all margins healthy |
| 1 | Warnings: high pour cost or low margin items |
| 2 | Config error |
| 3 | Data error |
| 10 | Unexpected error |

## Verification

- Exit code is 0 or 1
- stdout is valid JSON (with --format json)
- `data.items` contains analyzed menu items with cost/margin data

From cvander/Maya, MIT.

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