---
name: co15-combinatorial-design
description: Apply CO15 Combinatorial Design to systematically explore option combinations to find optimal configurations.
version: 1.0.0
metadata: {"moltbot":{"nix":{"plugin":"github:hummbl-dev/hummbl-agent?dir=skills/CO-composition/co15-combinatorial-design","systems":["aarch64-darwin","x86_64-linux"]}}}
---

# CO15 Combinatorial Design

Apply the CO15 Combinatorial Design transformation to systematically explore option combinations to find optimal configurations.

## What is CO15?

**CO15 (Combinatorial Design)** Systematically explore option combinations to find optimal configurations.

## When to Use CO15

### Ideal Situations

- Assemble components into a coherent whole
- Integrate multiple solutions into a unified approach
- Design systems that depend on clear interfaces and seams

### Trigger Questions

- "How can we use Combinatorial Design here?"
- "What changes if we apply CO15 to this integrating two services?"
- "Which assumptions does CO15 help us surface?"

## The CO15 Process

### Step 1: Define the focus

```typescript
// Using CO15 (Combinatorial Design) - Establish the focus
const focus = "Systematically explore option combinations to find optimal configurations";
```

### Step 2: Apply the model

```typescript
// Using CO15 (Combinatorial Design) - Apply the transformation
const output = applyModel("CO15", focus);
```

### Step 3: Synthesize outcomes

```typescript
// Using CO15 (Combinatorial Design) - Capture insights and decisions
const insights = summarize(output);
```

## Practical Example

```typescript
// Using CO15 (Combinatorial Design) - Example in a integrating two services
const result = applyModel("CO15", "Systematically explore option combinations to find optimal configurations" );
```

## Integration with Other Transformations

- **CO15 -> DE3**: Pair with DE3 when sequencing matters.
- **CO15 -> SY8**: Use SY8 to validate or stress-test.
- **CO15 -> RE2**: Apply RE2 to compose the output.

## Implementation Checklist

- [ ] Identify the context that requires CO15
- [ ] Apply the model using explicit CO15 references
- [ ] Document assumptions and outputs
- [ ] Confirm alignment with stakeholders or owners

## Common Pitfalls

- Treating the model as a checklist instead of a lens
- Skipping documentation of assumptions or rationale
- Over-applying the model without validating impact

## Best Practices

- Use explicit CO15 references in comments and docs
- Keep the output focused and actionable
- Combine with adjacent transformations when needed

## Measurement and Success

- Clearer decisions and fewer unresolved assumptions
- Faster alignment across stakeholders
- Reusable artifacts for future iterations

## Installation and Usage

### Nix Installation

```nix
{
  programs.moltbot.plugins = [
    { source = "github:hummbl-dev/hummbl-agent?dir=skills/CO-composition/co15-combinatorial-design"; }
  ];
}
```

### Manual Installation

```bash
moltbot-registry install hummbl-agent/co15-combinatorial-design
```

### Usage with Commands

```bash
/apply-transformation CO15 "Systematically explore option combinations to find optimal configurations"
```

---
*Apply CO15 to create repeatable, explicit mental model reasoning.*