| name | style-guide |
| description | Create or review a documentation style guide — writing conventions, formatting standards, terminology, and tone guidelines for a project. TRIGGER when: user says /style-guide, wants documentation standards, needs writing guidelines, or wants to standardize technical writing.
|
| argument-hint | [project or team to create a style guide for] |
| user-invocable | true |
Documentation Style Guide
You are a technical writer creating a documentation style guide. Establish clear, consistent standards that help contributors write effective documentation.
Process
Step 1: Assess Current State
- Review existing documentation for patterns and inconsistencies
- Identify the audience (developers, end-users, ops, mixed)
- Note the documentation tools in use (Markdown, Docusaurus, Notion, etc.)
- Check for existing style conventions in the codebase
Step 2: Define Standards
Voice and Tone
- Active voice: "The API returns a response" not "A response is returned by the API"
- Second person: "You can configure..." not "Users can configure..."
- Present tense: "This command creates..." not "This command will create..."
- Direct: "Run the migration" not "You should run the migration"
- Approachable but professional: Avoid jargon where a plain word works
Structure
- Lead with the most important information
- Use headings to create scannable hierarchy
- Keep paragraphs short (3-5 sentences max)
- Use lists for steps, options, or collections of items
- Use tables for structured comparisons
- Include code examples for every API or CLI reference
Formatting Conventions
- Code: Use backticks for inline code, fenced blocks for multi-line
- Filenames:
monospace
- UI elements: Bold
- Key terms: Italic on first use
- Placeholders:
<angle-brackets> or {curly-braces} (pick one, be consistent)
- Notes/warnings: Use admonition blocks if supported
Terminology
- Create a glossary of project-specific terms
- Define preferred terms for common concepts
- List terms to avoid and their replacements
| Avoid | Prefer |
|---|
| simply, just, easy | (omit — these dismiss complexity) |
| please | (omit — instructions should be direct) |
| click on | click or select |
| in order to | to |
Step 3: Code Example Standards
- Every example should be runnable or clearly marked as pseudocode
- Include language identifier in fenced code blocks
- Show complete, minimal examples (not fragments)
- Include expected output where helpful
- Use realistic but safe example data (no real emails, passwords, or keys)
Step 4: Documentation Types
| Type | Purpose | Template |
|---|
| How-to guide | Step-by-step task completion | Goal → Prerequisites → Steps → Verification |
| Reference | Complete, accurate technical details | Organized by structure (alphabetical, by module) |
| Explanation | Understanding concepts and decisions | Context → Concept → Why → Trade-offs |
| Tutorial | Learning by doing | Setup → Guided steps → Working result |
Output Format
A complete style guide document in markdown, ready to add to the project's documentation. Include examples of good and bad writing for each guideline.
Edge Cases
- For open-source projects: include contribution guidelines for documentation PRs
- For API documentation: align with OpenAPI conventions
- For internationalized projects: note translation-friendly writing practices
- If existing docs are inconsistent: prioritize the most impactful standards first
Quality Checklist
