nonfunctional-check

nonfunctional-check is a skill for Claude Code, Codex from s977043/PlanGate. It costs 90 tokens per session (440 once invoked), scanned A, original, MIT.

A requirements review that checks concerns beyond visible features, including performance, maintainability, security, accessibility, and system monitoring. It is designed for a Japanese workflow phase called requirement expansion.

In plain words
What is it for?
Use it to create a list of non-functional requirements, such as response-time expectations, logging, authentication, protection of confidential data, and accessibility needs.
Why use it?
It helps teams notice quality and operational requirements that are easy to miss when they focus only on what the software should do.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md; mentions Codex.

Good fit Use it to create a list of non-functional requirements, such as response-time expectations, logging, authentication, protection of confidential data, and accessibility needs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/s977043/plangate/nonfunctional-check
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.

Any agent
npx skills add s977043/PlanGate --skill nonfunctional-check
Clone the repo
git clone --depth 1 https://github.com/s977043/PlanGate

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.

agentmods badge for nonfunctional-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/s977043/plangate/nonfunctional-check.svg)](https://agentmods.dev/skills/s977043/plangate/nonfunctional-check)
Your own site
<a href="https://agentmods.dev/skills/s977043/plangate/nonfunctional-check"><img src="https://agentmods.dev/badge/skills/s977043/plangate/nonfunctional-check.svg" alt="Measured on agentmods" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 440 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00090 $0.00440
Opus 5 $0.00045 $0.00220
Sonnet 5 $0.00018 $0.00088
Haiku 4.5 $0.00009 $0.00044

Measured 7d ago against content hash 1fa3814d3a7a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

nonfunctional-check 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 7d 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.

.agents/skills/nonfunctional-check/SKILL.md · 42 lines

What it actually says

Nonfunctional Check

機能要件だけでなく、性能 / 保守性 / 安全性 / アクセシビリティなどの非機能要件を漏れなく確認する Skill。

カテゴリ

Check

想定 Phase

WF-02 Requirement Expansion

入力

  • requirements(WF-02 中間 artifact)
  • プロジェクトの非機能基準(AGENTS.md / レビュー原則)

出力

非機能要件リスト:

  • パフォーマンス要件(レスポンス時間 / スループット)
  • 保守性要件(コードスタイル / テストカバレッジ / ログ要件)
  • セキュリティ要件(認証 / 認可 / 機密情報保護)
  • アクセシビリティ要件(該当する場合)
  • 可観測性要件(ログ / メトリクス / トレース)

使い方

  • WF-02 で qa-reviewer が呼び出す
  • 結果は requirements artifact に統合される

関連

  • Workflow: docs/workflows/02_requirement_expansion.md配布対象外install.sh --claude / plugin / Codex の 3 経路とも導入先には配置されない。解決できない場合は本 Skill の記述を代替正本とし、「正本 <path> を参照できなかった」と明示する)
  • Rule: Rule 2
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. 7d ago First seen · 42 lines · 90 tokens per session scan A 1fa3814d3a7a

Subscribe to this mod's changes

nonfunctional-check is a skill published in the GitHub repository s977043/PlanGate (2 stars, last pushed yesterday), licensed MIT. It adds 90 tokens to every session and 440 once invoked, about $0.0005 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 2026-08-31.

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