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CodeAppsDevelopmentStandard: Skill for Claude Code

.github/skills/generative-page/SKILL.md

generative-page is a skill for Claude Code from geekfujiwara/CodeAppsDevelopmentStandard. It costs 62 tokens per session (5,670 once invoked), scanned A, original, MIT.

A skill for building and deploying Generative Pages in Power Apps. These are lightweight pages built as a single React and TypeScript file, with Fluent UI for controls and D3.js for charts.

In plain words
What is it for?
Use it to create, debug, and upload Power Apps pages that display data and charts through the Data API.
Why use it?
It defines the exact libraries, file structure, styling rules, and deployment command needed for this page type.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is geekfujiwara/CodeAppsDevelopmentStandard's own configuration. It tells Claude Code how to work on CodeAppsDevelopmentStandard itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything CodeAppsDevelopmentStandard configures →

not rated 78repo +3 changed 1mo ago A scan SkillSpector: warn 62 tokens original MIT
View source ↗ geekfujiwara/CodeAppsDevelopmentStandard
Reuse

Borrowing it

Nothing to install: this file belongs to geekfujiwara/CodeAppsDevelopmentStandard. 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/geekfujiwara/CodeAppsDevelopmentStandard/main/.github/skills/generative-page/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/geekfujiwara/CodeAppsDevelopmentStandard

Made for: Claude Code.

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 generative-page

README.md
[![agentmods](https://agentmods.dev/badge/skills/geekfujiwara/codeappsdevelopmentstandard/generative-page/github.svg)](https://agentmods.dev/skills/geekfujiwara/codeappsdevelopmentstandard/generative-page)
Your own site
<a href="https://agentmods.dev/skills/geekfujiwara/codeappsdevelopmentstandard/generative-page"><img src="https://agentmods.dev/badge/skills/geekfujiwara/codeappsdevelopmentstandard/generative-page/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.

agentmods 80×15 button for generative-page

Your own site · 80×15
<a href="https://agentmods.dev/skills/geekfujiwara/codeappsdevelopmentstandard/generative-page"><img src="https://agentmods.dev/badge/skills/geekfujiwara/codeappsdevelopmentstandard/generative-page.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 5,670 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 35
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Agent Snooping · line 82
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00062 $0.05670
Opus 5.5 $0.00025 $0.02268
Sonnet 5.5 $0.00012 $0.01134
Haiku 4.5 $0.00006 $0.00567

Measured 1mo ago against content hash c724dc27ef02, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

generative-page 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (references/objectflow-RuntimeTypes.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.github/skills/generative-page/SKILL.md · 380 lines

How it starts

The opening of the file, as written. The whole thing — 380 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generative Pages 開発スキル

Power Apps モデル駆動型アプリの Generative Pages (genux) を開発・デバッグ・デプロイするスキル。

Code Apps スキル (code-apps) との違い: Code Apps は React 18 + Tailwind + Vite + npx pa app push のフルスタック開発。Generative Pages は React 17 + Fluent UI V9 + D3.js の 単一 .tsx ファイル構成 で pac model genpage upload でデプロイする軽量ページ。

技術スタック

レイヤー 技術
UI React 17 + TypeScript
コンポーネント @fluentui/react-components (Fluent UI V9)
アイコン @fluentui/react-icons（サイズなしバリアントのみ）
チャート D3.js v7
データ props.dataApi (DataAPI)
デプロイ PAC CLI (pac model genpage upload)

利用可能ライブラリ（これ以外は使用禁止）:

react: ^17.0.2
@fluentui/react-components: ^9.46.4
@fluentui/react-icons: ^2.0.292
@fluentui/react-datepicker-compat: ^0.5.0
@fluentui/react-timepicker-compat: ^0.3.0
d3: ^7.9.0
uuid: ^9.0.1

必須要件

  1. React 17 構文のみ — React 18 の useId, useTransition 等は使用不可
  2. FluentProvider 追加禁止 — ルートで提供済み。追加すると React 17 でダブルレンダーが発生
  3. 100vh / 100vw 禁止 — flexbox と相対単位を使用
  4. 単一ファイル構成 — 全コンポーネント・ユーティリティを 1 つの .tsx ファイルに記述
  5. export default GeneratedComponent — エントリポイントの関数名と export 形式は固定
  6. makeStyles + tokens でスタイリング。インラインスタイルは動的値のみ
  7. DataAPI は読み取り専用 — props.dataApi.queryTable() と getChoices() のみ使用可能。updateRecord, createRecord, deleteRecord は存在しない
  8. 書き込みは Xrm.WebApi.online — (window as any).Xrm.WebApi.online.updateRecord() / .createRecord() / .deleteRecord() を使用。dataApi には書き込みメソッドがない
  9. カラム名は RuntimeTypes.ts を確認 — 推測禁止
  10. @fluentui/react-icons はサイズなしバリアントのみ — AddRegular ✅ / Add24Regular ❌
  11. Map / Set に for...of 禁止 — .forEach() または [...map] でイテレーション
  12. ダークモードはデフォルトで実装しない — ユーザーが明示的にダークモード対応を要求した場合のみ themeToVars パターンを実装する。デフォルトは Fluent UI のシステムテーマに従う（追加実装なし）

13 以降の詳細ルール・教訓（Lookup 解決・SiteMap の Url 属性方式・D3 チャート・OData アノテーション回避・genpage upload/PublishXml のタイムアウト対策等、コード例つき）は 必須要件 詳細 を参照。

Read the full file on GitHub · 380 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago Changed · -1 lines c724dc27ef02
  2. 2mo ago Changed eac74897410f
  3. 2mo ago First seen · 381 lines · 62 tokens per session scan A da5765be097a

Subscribe to this mod's changes

generative-page is a skill published in the GitHub repository geekfujiwara/CodeAppsDevelopmentStandard (78 stars, last pushed yesterday), licensed MIT. It adds 62 tokens to every session and 5,670 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 2026-08-30.

FrontendReactui
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generative-page compared with skills from other repositories

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generative-pagegeekfujiwara/CodeAppsDevelopmentStandardSkill78yesterdayMITA62Claude Code
shadcnshadcn-ui/uiSkill127kyesterdayMITA113Claude Code, Codex, Cursor
compiler-orchestratorreact/reactSkill252kyesterdayMITA38Claude Code
migrate-radix-to-baseshadcn-ui/uiSkill127kyesterdayMITA61Cursor
plan-updatereact/reactSkill252kyesterdayMITA44Claude Code
compiler-commitreact/reactSkill252kyesterdayMITA42Claude Code
compiler-portreact/reactSkill252kyesterdayMITA35Claude Code