explain-code

A command that examines source code and explains what it does, how it is structured, and how information moves through it. It can cover the surrounding project context as well as individual lines and algorithms.

In plain words
What is it for?
Use it to understand a file’s role, review its imports and configuration, break down functions and classes, follow data and control flow, or clarify complex logic.
Why use it?
Code can be difficult to understand when its purpose, dependencies, control flow, or less obvious lines are unclear. This gives the explanation a systematic structure.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/ivanlutsenko/awac-ai-agent-plugins/explain-code
Clone the repo
git clone --depth 1 https://github.com/IvanLutsenko/awac-ai-agent-plugins

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,348 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.01348
Opus 5 $0.00000 $0.00674
Sonnet 5 $0.00000 $0.00270
Haiku 4.5 $0.00000 $0.00135

Measured yesterday against content hash b1c84ce7d3b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

explain-code scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

1. Extract credentials from request headers
.claude/commands/explain-code.md · 194 lines

How it starts

The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analyze and Explain Code Functionality

Analyze and explain code functionality

Instructions

Follow this systematic approach to explain code: $ARGUMENTS

  1. Code Context Analysis

    • Identify the programming language and framework
    • Understand the broader context and purpose of the code
    • Identify the file location and its role in the project
    • Review related imports, dependencies, and configurations
  2. High-Level Overview

    • Provide a summary of what the code does
    • Explain the main purpose and functionality
    • Identify the problem the code is solving
    • Describe how it fits into the larger system
  3. Code Structure Breakdown

    • Break down the code into logical sections
    • Identify classes, functions, and methods
    • Explain the overall architecture and design patterns
    • Map out data flow and control flow
  4. Line-by-Line Analysis

    • Explain complex or non-obvious lines of code
    • Describe variable declarations and their purposes
    • Explain function calls and their parameters
    • Clarify conditional logic and loops
  5. Algorithm and Logic Explanation

    • Describe the algorithm or approach being used
    • Explain the logic behind complex calculations
    • Break down nested conditions and loops
    • Clarify recursive or asynchronous operations
  6. Data Structures and Types

    • Explain data types and structures being used
    • Describe how data is transformed or processed
    • Explain object relationships and hierarchies
    • Clarify input and output formats
  7. Framework and Library Usage

    • Explain framework-specific patterns and conventions
    • Describe library functions and their purposes
    • Explain API calls and their expected responses
    • Clarify configuration and setup code
  8. Error Handling and Edge Cases

    • Explain error handling mechanisms
    • Describe exception handling and recovery
    • Identify edge cases being handled
    • Explain validation and defensive programming

Read the full file on GitHub · 194 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 194 lines · 0 tokens per session scan C b1c84ce7d3b9

Subscribe to this mod's changes

explain-code is a command published in the GitHub repository IvanLutsenko/awac-ai-agent-plugins (2 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,348 tokens. A static security scan graded it C with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.