A skill for explaining code, logic, and software architecture in plain language. It can tailor explanations to backend, interface, database, security, or documentation topics.

For high-level explanations, step-by-step logic walkthroughs, architecture discussions, and explanations of backend, interface, database, or security code.

It gives an agent a structured way to understand the requested code and project context before explaining it.

How VoTruongDanh/Skills-Agent configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to VoTruongDanh/Skills-Agent. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/VoTruongDanh/Skills-Agent/main/.agent/skills/explain/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/VoTruongDanh/Skills-Agent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/votruongdanh/skills-agent/explain/github.svg)](https://agentmods.dev/skills/votruongdanh/skills-agent/explain)

Your own site

<a href="https://agentmods.dev/skills/votruongdanh/skills-agent/explain"><img src="https://agentmods.dev/badge/skills/votruongdanh/skills-agent/explain/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/votruongdanh/skills-agent/explain"><img src="https://agentmods.dev/badge/skills/votruongdanh/skills-agent/explain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 982 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00062	$0.00982
Opus 5.5	$0.00025	$0.00393
Sonnet 5.5	$0.00012	$0.00196
Haiku 4.5	$0.00006	$0.00098

Measured 2mo ago against content hash 6e3a71c0b5fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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.

.agent/skills/explain/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Memory Protocol

START: Read .ai-memory.md from project root. Check tech stack, architecture notes, past explanations, and domain context. END: Update .ai-memory.md using Memory Compaction Rules with: what was explained, key insights, misconceptions clarified, and follow-ups.

Goal

Help the user deeply understand code, logic, architecture, or behavior — at the level of detail they need.

Agent Routing

If explaining backend/API logic → read .kiro/skills/agents/agents/backend-specialist.md and apply its knowledge
If explaining UI/component behavior → read .kiro/skills/agents/agents/frontend-specialist.md and apply its knowledge
If explaining database schema/queries → read .kiro/skills/agents/agents/database-architect.md and apply its knowledge
If explaining security mechanisms → read .kiro/skills/agents/agents/security-auditor.md and apply its knowledge
Default → read .kiro/skills/agents/agents/documentation-writer.md for clear, structured explanation

Socratic Gate

Before explaining, verify:

Which file, function, or code block should be explained?
What level of detail? (high-level overview vs line-by-line walkthrough)
What is the user's familiarity level with this area? If any answer is unclear, ASK before proceeding.

Workflow

Read Memory — Load .ai-memory.md for project context, tech stack, and architecture.
Read the target code thoroughly — understand intent, not just syntax.
Identify the explanation scope: single function, module, data flow, or architecture.
Explain at the requested level:
- High-level: Purpose, inputs/outputs, how it fits in the system.
- Detailed: Step-by-step logic, control flow, edge cases, design decisions.
- Line-by-line: What each line does and why.
Highlight non-obvious logic, hidden side effects, and design trade-offs.
Use analogies or diagrams if the concept is complex.
Suggest follow-up topics if relevant (e.g., "you may also want to understand X").
Quality Gate — Read .kiro/skills/_scripts/checklist.md for cross-cutting checks.
Update Memory — Save explanation context and insights to .ai-memory.md.

Read the full file on GitHub · 75 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.

2mo ago First seen · 75 lines · 62 tokens per session scan A 6e3a71c0b5fe

Subscribe to this mod's changes

explain is a skill published in the GitHub repository VoTruongDanh/Skills-Agent (4 stars, last pushed 1mo ago), licensed MIT. It adds 62 tokens to every session and 982 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.

Learning and teaching

explain next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
explainVoTruongDanh/Skills-Agent	Skill	4	1mo ago	MIT	A	62	Claude Code, Codex
hr-onboardingnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	62	Claude Code, Codex
book-mirrorgarrytan/gbrain	Skill	32k	yesterday	MIT	A	138	Claude Code
exam-forecastanthropics/claude-for-legal	Skill	9.9k	3d ago	Apache-2.0	A	73	Claude Code
lean-formalizewanshuiyin/Auto-claude-code-research-in-sleep	Skill	19k	3d ago	MIT	A	81	Claude Code
eli5companion-inc/feynman	Skill	10k	6d ago	MIT	A	63	Claude Code, Codex
deck-course-modulenexu-io/html-anything	Skill	9.4k	25d ago	Apache-2.0	A	25	Claude Code, Codex

Skills-Agent: Skill for Claude Code