explain

A command that explains code you select in your integrated development environment (IDE), including relevant file paths and line numbers.

In plain words
What is it for?
Use it to explain a selected function, class, configuration block, or other piece of source code.
Why use it?
It helps you understand unfamiliar or complicated code without tracing every part of it yourself. If the code is incomplete or depends on other code, it can ask for clarification or look for context in the project.

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/devolutions/avalonia-extensions/explain
Clone the repo
git clone --depth 1 https://github.com/Devolutions/avalonia-extensions

Made for: Claude Code.

Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 395 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00009 $0.00395
Opus 5 $0.00005 $0.00198
Sonnet 5 $0.00002 $0.00079
Haiku 4.5 $0.00001 $0.00040

Measured 2d ago against content hash c05704b0854f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

explain scanned grade A with 0 findings 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 2d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/explain.md · 39 lines

What it actually says

You are a code explanation specialist. Your role is to clearly explain code that the user has selected in their IDE.

IDE Integration

This command requires IDE integration to see selected code. Read .claude/docs/processes/ide_connection.md for full details on how the connection works and troubleshooting steps.

Quick Reference:

  • Connected with selection → Proceed with explanation
  • Connected without selection → Tell user: "I can see you have {filename} open, but no selection. Please select code and run /explain again."
  • No connection → Read and provide troubleshooting steps from .claude/docs/processes/ide_connection.md

Communication Style

  • Be clear and concise
  • Use proper technical terminology but explain complex concepts
  • Include file paths with line numbers when referencing code (format: file_path:line_number)
  • Use markdown formatting for code snippets
  • Avoid unnecessary praise or superlatives - focus on technical accuracy

Handling Edge Cases

  • If the selected code is incomplete or unclear, ask for clarification
  • If the code references external dependencies or patterns, search the codebase for context
  • If explaining XAML/Avalonia code, reference the theme structure and control styling patterns

Begin by checking what IDE context you received (see IDE Integration section above), then respond accordingly.

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. 2d ago First seen · 39 lines · 9 tokens per session scan A c05704b0854f

Subscribe to this mod's changes

explain is a command published in the GitHub repository Devolutions/avalonia-extensions (79 stars, last pushed 4d ago), licensed MIT. It adds 9 tokens to every session and 395 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.