explain-code

A code-explanation guide for Solana, a blockchain platform, and its Anchor programs. It turns complex code into plain-language steps, diagrams, and explanations of unfamiliar concepts.

In plain words
What is it for?
Use it to explain Solana instructions, client code, account structures, and tests, including concepts such as PDAs and CPIs.
Why use it?
It helps readers understand what blockchain code does and why it is written that way without having to decode every unfamiliar concept alone.

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/solanabr/solana-ai-kit/explain-code
Clone the repo
git clone --depth 1 https://github.com/solanabr/solana-ai-kit

Made for: Claude Code.

Per session 16 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 552 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 $0.00016 $0.00552
Opus 5 $0.00008 $0.00276
Sonnet 5 $0.00003 $0.00110
Haiku 4.5 $0.00002 $0.00055

Measured 2d ago against content hash 18151a79f59e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

explain-code 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.claude/commands/explain-code.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Explain complex Solana blockchain code through clear narratives, visual diagrams, and step-by-step breakdowns.

Code to Explain

$ARGUMENTS

  • Solana Concepts: See SKILL.md for concept references
  • Anchor Patterns: See programs/anchor.md
  • Learning Approach: See solana-guide agent for educational patterns

Explanation Framework

1. Initial Assessment

Determine:

  • Code type: Program instruction, client code, account structure, test
  • Complexity level: Beginner, intermediate, advanced
  • Key concepts: What Solana/blockchain concepts are used
  • Target audience: Adjust depth accordingly

2. Explanation Structure

High-Level Overview

  • What does this code do? (1-2 sentences)
  • What problem does it solve?
  • Key concepts used

Visual Diagram

  • Use Mermaid flowcharts for control flow
  • Use relationship diagrams for account structures
  • Use ASCII art for simple data flows

Step-by-Step Breakdown

  • Walk through each significant section
  • Explain what's happening AND why it matters
  • Highlight non-obvious decisions

Concept Deep Dives For Solana concepts encountered (PDAs, CPIs, etc.):

  • Brief explanation of the concept
  • How it's used in this code
  • Common pitfalls to avoid

Security Analysis

  • Access control checks
  • Validation patterns
  • Potential issues or considerations

Patterns Identified

  • Design patterns used (state machine, authority, escrow, etc.)
  • Why the pattern fits this use case

3. Interactive Elements

Include comprehension checks:

  • "What would happen if...?"
  • "How would you modify this to...?"
  • Links to related concepts for further learning

Output Format

  1. Overview - What does this code do? (2-3 sentences)
  2. Visual Diagram - Flow chart or relationship diagram (Mermaid)
  3. Step-by-Step - Walk through significant sections
  4. Deep Dives - Explain Solana-specific concepts encountered
  5. Security - Highlight security considerations
  6. Patterns - Identify design patterns used
  7. Questions - Comprehension checks

Read the full file on GitHub · 79 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. 2d ago First seen · 79 lines · 16 tokens per session scan A 18151a79f59e

Subscribe to this mod's changes

explain-code is a command published in the GitHub repository solanabr/solana-ai-kit (98 stars, last pushed 12d ago), licensed MIT. It adds 16 tokens to every session and 552 once invoked, about $0.0001 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.