explain

A prompt for explaining code in Japanese in a way that beginners can follow. It asks for a step-by-step explanation of the supplied code.

In plain words
What is it for?
It helps explain what code does, how its parts work, and how the logic proceeds.
Why use it?
It makes unfamiliar code easier to understand without assuming advanced programming knowledge.

Command

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/moco-ai/moco/explain
Clone the repo
git clone --depth 1 https://github.com/moco-ai/moco
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 72 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 $0.00012 $0.00072
Opus 5 $0.00006 $0.00036
Sonnet 5 $0.00002 $0.00014
Haiku 4.5 $0.00001 $0.00007

Measured 2d ago against content hash 62b04737b3e0, 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.

.moco/commands/explain.md · 12 lines

What it actually says

以下のコードの内容を、初心者にもわかりやすく段階を追って解説してください:

{{code}}

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 · 12 lines · 12 tokens per session scan A 62b04737b3e0

Subscribe to this mod's changes

explain is a command published in the GitHub repository moco-ai/moco (20 stars, last pushed 7mo ago), licensed MIT. It adds 12 tokens to every session and 72 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.

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