Skills Reference

Modular capabilities that activate based on context.

Overview

Skills are specialized knowledge modules. They auto-activate when relevant or can be explicitly invoked.

Available Skills

planning

Location: .claude/skills/planning/

Plan creation, organization, and validation.

Activates when:

• Using /plan:* commands
• Discussing project planning
• Creating implementation strategies

Capabilities:

• Plan structure templates
• Phase organization
• Dependency management
• Effort estimation

Explicit activation:

Use the planning skill to create a migration plan.

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code-review

Location: .claude/skills/code-review/

Code review reception, verification gates.

Activates when:

• Using review commands
• Receiving PR feedback
• Discussing code quality

Capabilities:

• Review protocol
• Verification gates
• Feedback evaluation
• Push-back guidance

Key rules:

• No performative agreement
• Verify before implementing
• Evidence before claims

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debugging

Location: .claude/skills/debugging/

Systematic debugging, root cause tracing.

Activates when:

• Using /fix:* commands
• Encountering errors
• Analyzing logs

Capabilities:

• Root cause analysis
• Stack trace interpretation
• Log analysis patterns
• Defense-in-depth strategies

Protocol:

1. Read the error
2. Reproduce
3. Investigate
4. Fix at source
5. Verify

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pair-programming

Location: .claude/skills/pair-programming/

Collaborative development modes.

Activates when:

• Collaborative coding sessions
• TDD requests
• Mentoring sessions

Modes:

Mode	You	AI
Driver	Code	Navigate
Navigator	Guide	Code
Switch	Alternate	Alternate
TDD	Test cycle	Test cycle
Mentor	Learn	Teach
Debug	Collaborate	Collaborate

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ai-multimodal

Location: .claude/skills/ai-multimodal/

Image, video, and audio processing with AI.

Requires:

• Python 3.x
• google-genai package
• GEMINI_API_KEY environment variable

Activates when:

• Image analysis requests
• Video processing
• Audio transcription

Capabilities:

• Image description
• Video frame analysis
• Audio transcription
• Document OCR

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media-processing

Location: .claude/skills/media-processing/

FFmpeg, ImageMagick, background removal.

Requires:

• FFmpeg
• ImageMagick
• rmbg-cli

Activates when:

• Media conversion
• Image editing
• Video encoding

Capabilities:

• Video encoding (H.264, H.265, VP9)
• Image manipulation
• Background removal
• Format conversion

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Skill Activation

Automatic

Skills activate based on:

• Command context (/fix -> debugging)
• Conversation topic
• File types mentioned

Explicit

Force activation:

Use the debugging skill to analyze this error.

Multiple

Skills can combine:

Use debugging and code-review skills to fix and review this code.

Creating Custom Skills

Add to .claude/skills/:

.claude/skills/my-skill/
├── skill.md        # Main instructions
├── examples/       # Example usage
└── templates/      # Templates if needed

In skill.md:

# My Custom Skill

## When to Activate
- Trigger conditions

## Capabilities
- What it can do

## Instructions
- How to behave

Related

• Hooks Reference - Extension points
• Output Styles - Verbosity control