Make Skill Template (OnoCoro)

Create new Agent Skills for GitHub Copilot from prompts or by duplicating this template. This template is customized for OnoCoro specialized capabilities with bundled resources (scripts, references, guides).

Use when asked to:

• "Create a skill" — Build a new Agent Skill from scratch
• "Make a new skill" — Scaffold new capability
• "Build a skill for X" — Specialized skill for OnoCoro feature
• Building specialized AI capabilities with bundled resources

What is an Agent Skill?

An Agent Skill is a self-contained folder containing:

• SKILL.md — Main instruction file with guidance and examples
• scripts/ — PowerShell/Python scripts for validation or automation
• references/ — Supporting documentation, checklists, patterns
• assets/ — Code samples, templates, configuration files

Skill Directory Structure

.github/skills/[skill-name]/
├── SKILL.md                       # Main skill definition
├── scripts/                       # (Optional) Automation scripts
│   └── validate-skill.ps1
├── references/                    # (Optional) Supporting docs
│   ├── pattern-guide.md
│   ├── checklist.md
│   └── examples.md
└── assets/                        # (Optional) Templates/samples
    ├── template.cs
    └── config.yml

Creating a New OnoCoro Skill

Step 1: Define the Skill Purpose

Skill Name: [Name]
Purpose: [What the skill does]
Target Audience: [AI Agent / Developer]
Use Cases:
  - [Use case 1]
  - [Use case 2]

Step 2: Create Skill Directory

# Create skill folder
New-Item -Type Directory -Path ".github/skills/[skill-name]"

# Create SKILL.md
New-Item -Type File -Path ".github/skills/[skill-name]/SKILL.md"

# Create subfolders if needed
New-Item -Type Directory -Path ".github/skills/[skill-name]/scripts"
New-Item -Type Directory -Path ".github/skills/[skill-name]/references"

Step 3: Write SKILL.md

Use this template:

---
name: [skill-name]
description: [One-sentence description of what the skill does. Include "OnoCoro" context.]
compatibility: [e.g., "Works with GitHub Copilot", "Requires X MCP Server"]
---

# [Skill Name]

[Purpose and overview]

## When to Use

- [Use case 1]
- [Use case 2]
- [Use case 3]

## Key Features

| Feature | Description |
|---------|-------------|
| [Feature 1] | [Description] |
| [Feature 2] | [Description] |

## Usage Examples

### Example 1

[Describe scenario]

```csharp
// Code example

Example 2

[Describe scenario]

# Script example

Best Practices

• [Practice 1]
• [Practice 2]
• [Practice 3]

Related Documentation

• AGENTS.md
• [Other docs...]

---

Last Updated: 2026-01-20

### Step 4: Add Supporting Files (Optional)

**scripts/validate-skill.ps1:**
```powershell
# PowerShell script for validation or automation
# Example: Check for missing configurations

param(
    [string]$ProjectPath = "g:\unity\OnoCoro2026"
)

Write-Host "Validating skill requirements..."

if (-not (Test-Path "$ProjectPath/.github/skills")) {
    Write-Error "Skills folder not found"
    exit 1
}

Write-Host "Validation passed!"

references/pattern-guide.md:

# [Skill Name] Patterns

## Pattern 1

[Description]

```csharp
// Code pattern

Checklist

• Item 1
• Item 2

**assets/template.cs:**
```csharp
// Template for common code patterns in this skill

Step 5: Document in Skills README

Add entry to .github/skills/README.md:

| [Skill Name] | [Description] | scripts/ references/ |
|--------------|---------------|---------------------|

OnoCoro Skill Examples

Recommended Skills to Create

1.

unity-recovery-validator

Purpose: Validate Recovery phase code against AGENTS.md standards

Files:

• SKILL.md

  — Validation guidance

• scripts/validate-recovery.ps1

  — Check for null checks, magic numbers

• references/recovery-checklist.md

  — Pre-commit checklist

• references/recovery-patterns.md

  — Approved patterns

2.

plateau-data-processor

Purpose: PLATEAU SDK data processing and validation

Files:

• SKILL.md

  — PLATEAU processing guidance

• references/crs-guide.md

  — Coordinate Reference System guide

• references/mesh-patterns.md

  — Mesh generation patterns

• scripts/validate-plateau.ps1

  — Validate geospatial data

3.

prefab-manager-assistant

Purpose: PrefabManager usage and management

Files:

• SKILL.md

  — PrefabManager patterns

• references/prefab-checklist.md

  — Integration checklist

• scripts/find-resources-load.ps1

  — Detect Resources.Load calls

• assets/PrefabManager-template.cs

  — Template for new managers

Skill Best Practices

Documentation

• Clear, actionable instructions
• Real OnoCoro code examples
• Links to AGENTS.md and other guidelines
• Before/after examples showing improvement

Scripts

• Make idempotent (safe to run multiple times)
• Include error checking
• Output clear success/failure messages
• Use PowerShell 5.1 (Windows compatibility)

References

• Provide checklists for validation
• Include pattern examples
• Link to official documentation
• Keep focused on one topic per file

Organization

• One skill per feature/capability
• Self-contained (don't reference other skills)
• Include LICENSE.txt for clarity
• Add Last Updated date to SKILL.md

Skill Lifecycle

1. Create — Use this template
2. Test — Verify with example code
3. Document — Add to .github/skills/README.md
4. Integrate — Reference in .github/copilot/README.md
5. Maintain — Update as standards evolve

Related Documentation

• awesome-copilot Skills: https://github.com/github/awesome-copilot/tree/main/skills
• Agent Skills Spec: https://agentskills.io/specification
• OnoCoro AGENTS.md: AGENTS.md
• OnoCoro Instructions: .github/instructions/

---

Last Updated: 2026-01-20 Template Version: 1.0