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3.4 Creating Your First Custom Skill

Skill Design Principles

Anatomy of an Effective Skill

  1. Clear Purpose
  2. Structured Instructions
  3. Input/Output Specification
  4. Example Patterns
  5. Error Handling

Skill Creation Process

Step 1: Task Identification

  • Recurring work task
  • Complex but repetitive workflow
  • Needs consistent output

Step 2: Template Design

  • Break down the task into steps
  • Define exact input requirements
  • Specify precise output format

Use Case Examples

1. Weekly Report Generator

  • Input: Performance metrics
  • Output: Formatted executive summary
  • Skill goal: Consistent reporting style

2. Data Validation Skill

  • Input: Raw spreadsheet
  • Output: Cleaned, validated data
  • Skill goal: Standardized data processing

3. Meeting Summary Formatter

  • Input: Meeting transcript/notes
  • Output: Structured action items
  • Skill goal: Consistent communication

Practical Implementation

Markdown Skill Structure

# Skill: [Skill Name]

## Description
[What the skill does]

## Input Requirements
- [Detailed input specifications]
- [Formatting guidelines]

## Output Format
- [Precise output structure]
- [Formatting rules]

## Example Patterns
- [Successful implementation example]
- [Edge case handling]

## Constraints
- [Limitations]
- [Performance expectations]

Hands-on Lab

Exercise: Build a Skill

  1. Choose a recurring task from your work
  2. Design a skill template
  3. Test and iterate
  4. Document the skill creation process

Best Practices

  • Start simple
  • Document thoroughly
  • Test extensively
  • Continuously refine

Common Pitfalls

  • Overly complex skills
  • Vague instructions
  • Lack of example patterns
  • Ignoring edge cases

Advanced Skill Techniques

  • Conditional logic
  • Multi-step workflows
  • Error handling strategies
  • Performance tracking