explain

A plain-language guide to the structure and behavior of a specified software module or design.

In plain words
What is it for?
Use it to explain a named system such as a player controller, inventory, or save system. In Unity projects, it can also compare the written code with the current state in the Unity Editor.
Why use it?
It turns unfamiliar code and design documents into an understandable explanation, including how the pieces fit together and why they were arranged that way.

Skill for Claude CodeCodex

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 skills/tykisgod/quick-question/explain
Any agent
npx skills add tykisgod/quick-question --skill explain
Clone the repo
git clone --depth 1 https://github.com/tykisgod/quick-question

Made for: Claude Code, Codex.

Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 401 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 $0.00017 $0.00401
Opus 5 $0.00009 $0.00200
Sonnet 5 $0.00003 $0.00080
Haiku 4.5 $0.00002 $0.00040

Measured 2d ago against content hash b216ed45540a, 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.

skills/explain/SKILL.md · 28 lines

What it actually says

Respond in the user's preferred language (detect from their recent messages, or fall back to the language setting in CLAUDE.md).

Explain the architecture and logic of a specified module or design in plain, approachable language.

In a Unity project: when explaining "how does X work right now", complement source-reading with live state queries via tykit (get-properties / get-field / get-array / inspect). This catches the common failure mode of explaining what the code says it does vs what it actually does. See shared/tykit-first.md.

Arguments: $ARGUMENTS

  • Module or design name (e.g., "PlayerController", "inventory system", "save system")

Behavior

  1. Read design docs: Start by checking for project documentation (e.g., Docs/, Documentation/, or AGENTS.md) to understand the design intent
  2. Read core code: Find the key interfaces and implementation classes to understand the actual structure
  3. Explain in plain language, following these principles:
    • Start with a real-world analogy to build intuition
    • Then break down the concrete code structure (use a tree diagram or simple illustration)
    • Explain "why it was designed this way" not just "what it is"
    • If there is a history of evolution (changed from A to B), explain the motivation
    • Point out common pitfalls or misconceptions
  4. Do not:
    • Do not paste large blocks of source code; use pseudocode or key lines instead
    • Do not pile on design pattern terminology (say "each ship has its own service container", not "per-instance service locator pattern with dependency injection")
    • Do not assume the reader knows the project history
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 · 28 lines · 17 tokens per session scan A b216ed45540a

Subscribe to this mod's changes

explain is a skill published in the GitHub repository tykisgod/quick-question (11 stars, last pushed 7d ago), licensed MIT. It adds 17 tokens to every session and 401 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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