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Use when writing prose humans will read—documentation, commit messages, error messages, explanations, reports, or UI text. Applies Strunk's timeless rules for clearer, stronger, more professional writing.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Comprehensive guide for creating software diagrams using Mermaid syntax. Use when users need to create, visualize, or document software through diagrams including class diagrams (domain modeling, object-oriented design), sequence diagrams (application flows, API interactions, code execution), flowcharts (processes, algorithms, user journeys), entity relationship diagrams (database schemas), C4 architecture diagrams (system context, containers, components), state diagrams, git graphs, pie charts, gantt charts, or any other diagram type. Triggers include requests to "diagram", "visualize", "model", "map out", "show the flow", or when explaining system architecture, database design, code structure, or user/application flows.
Create high-quality git commits: review/stage intended changes, split into logical commits, and write clear commit messages (including Conventional Commits). Use when the user asks to commit, craft a commit message, stage changes, or split work into multiple commits.
Create professional Marp presentation slides with 7 beautiful themes (default, minimal, colorful, dark, gradient, tech, business). Use when users request slide creation, presentations, or Marp documents. Supports custom themes, image layouts, and "make it look good" requests with automatic quality improvements.
Creates comprehensive handoff documents for seamless AI agent session transfers. Triggered when: (1) user requests handoff/memory/context save, (2) context window approaches capacity, (3) major task milestone completed, (4) work session ending, (5) user says 'save state', 'create handoff', 'I need to pause', 'context is getting full', (6) resuming work with 'load handoff', 'resume from', 'continue where we left off'. Proactively suggests handoffs after substantial work (multiple file edits, complex debugging, architecture decisions). Solves long-running agent context exhaustion by enabling fresh agents to continue with zero ambiguity.
Use ONLY when the user explicitly says: 'use the skill web-to-markdown ...' (or 'use a skill web-to-markdown ...'). Converts webpage URLs to clean Markdown by calling the local web2md CLI (Puppeteer + Readability), suitable for JS-rendered pages.
| name | writing-clearly-and-concisely |
| description | Use when writing prose humans will read—documentation, commit messages, error messages, explanations, reports, or UI text. Applies Strunk's timeless rules for clearer, stronger, more professional writing. |
Write with clarity and force. This skill covers what to do (Strunk) and what not to do (AI patterns).
Use this skill whenever you write prose for humans:
If you're writing sentences for a human to read, use this skill.
When context is tight:
Loading a single section (~1,000-4,500 tokens) instead of everything saves significant context.
William Strunk Jr.'s The Elements of Style (1918) teaches you to write clearly and cut ruthlessly.
Elementary Rules of Usage (Grammar/Punctuation):
Elementary Principles of Composition:
The rules above are summarized from Strunk's original text. For complete explanations with examples:
| Section | File | ~Tokens |
|---|---|---|
| Grammar, punctuation, comma rules | 02-elementary-rules-of-usage.md | 2,500 |
| Paragraph structure, active voice, concision | 03-elementary-principles-of-composition.md | 4,500 |
| Headings, quotations, formatting | 04-a-few-matters-of-form.md | 1,000 |
| Word choice, common errors | 05-words-and-expressions-commonly-misused.md | 4,000 |
Most tasks need only 03-elementary-principles-of-composition.md — it covers active voice, positive form, concrete language, and omitting needless words.
LLMs regress to statistical means, producing generic, puffy prose. Avoid:
Be specific, not grandiose. Say what it actually does.
For comprehensive research on why these patterns occur, see signs-of-ai-writing.md. Wikipedia editors developed this guide to detect AI-generated submissions — their patterns are well-documented and field-tested.
Writing for humans? Load the relevant section from elements-of-style/ and apply the rules. For most tasks, 03-elementary-principles-of-composition.md covers what matters most.
