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explain

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Explain code, functions, modules, or programming concepts with structured walkthroughs covering purpose, patterns, data flow, edge cases, and performance. Use when explaining code, understanding how something works, learning a concept, or walking through a codebase. Keywords: explain, how does this work, what does this do, walkthrough, understand, code explanation, concept, teach, learn

186 stars
3.7k downloads
Updated 2/22/2026

Package Files

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SKILL.md

Explanation

Explain the code, concept, or topic: $ARGUMENTS

Two Modes

Code Explanation

Structured walkthrough with:

  1. Purpose & Context — what it does, why it exists, scope
  2. Key Concepts — patterns, algorithms, techniques, principles
  3. Code Flow — step-by-step execution with code snippets and annotations
  4. Dependencies & Integration — libraries, internal modules, APIs, contracts
  5. Data Transformations — input → processing → output with intermediate states
  6. Edge Cases & Error Handling — validation, error paths, boundary conditions
  7. Performance Characteristics — time/space complexity, bottlenecks, optimizations
  8. Gotchas & Non-Obvious Behavior — subtle bugs, implicit assumptions, side effects

Concept Explanation

Comprehensive overview with:

  1. Definition — clear, precise definition in simple terms
  2. The Problem It Solves — challenges without it, why it was created
  3. How It Works — core mechanism, key components, step-by-step operation
  4. When to Use It — good fit, poor fit, alternatives
  5. Practical Examples — simple illustrative + real-world production-like
  6. Common Patterns — typical usage, best practices, anti-patterns
  7. Trade-offs — advantages, disadvantages, complexity
  8. Related Concepts — similar/complementary concepts, historical context

See references/explanation-templates.md for full section templates, code annotation format, and visual aids guide.

Depth Levels

  • Quick overview — 3-5 sentences, core concept only
  • Standard — full structure above, balanced detail (default)
  • Deep dive — implementation details, algorithm analysis, full edge cases

Output Style

Clarity: Plain language, break complex ideas into chunks, use analogies for abstract concepts.

Precision: Technically accurate, distinguish "always true" from "usually true".

Engagement: Show with code examples, use ASCII diagrams for architecture/flow.

Completeness: Cover edge cases and limitations, provide context for deeper learning.

Follow-up Prompts

End each explanation with:

Would you like me to:
- Explain a specific part in more detail?
- Show alternative implementations?
- Discuss related concepts (e.g., X, Y, Z)?
- Review performance implications?
- Suggest improvements or refactorings?

Install

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Requires askill CLI v1.0+

AI Quality Score

85/100Analyzed 2/24/2026

Well-structured explanation skill with two clear modes (Code and Concept), comprehensive sections covering purpose, patterns, flow, edge cases, and performance. Includes depth levels, output style guidance, and follow-up prompts. Scores high on actionability, clarity, and safety. Slight deductions for missing tags/metadata and external template reference. Highly reusable for general code explanation tasks.

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Metadata

Licenseunknown
Version-
Updated2/22/2026
Publisherwcygan

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