Design Patterns
DocumentationBeginner

Documentation Co-Creation

Collaborate with AI to generate and maintain comprehensive documentation that stays in sync with your code.

documentationmaintenanceknowledge-sharingonboarding

Overview

Documentation Co-Creation uses AI as a collaborative partner in creating and maintaining project documentation. By analyzing code, commit history, and existing docs, AI can generate initial drafts, identify documentation gaps, and keep docs synchronized with code changes.

Problem

Documentation is often neglected or becomes outdated: - Writing docs competes with feature development time - Documentation drifts from actual implementation - Onboarding new team members is slow without good docs - API documentation is tedious to write and maintain

Solution

Integrate AI into your documentation workflow to: - Generate initial documentation from code analysis - Identify undocumented functions and components - Update docs when code changes - Create different doc formats for different audiences AI handles the mechanical aspects while humans ensure accuracy and add domain context.

Implementation

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Code Examples

AI-Generated JSDoc
/**
 * Calculates the total price including tax and discounts.
 *
 * @param items - Array of cart items with quantity and unit price
 * @param taxRate - Tax rate as a decimal (e.g., 0.08 for 8%)
 * @param discount - Optional discount to apply before tax
 * @returns The final price rounded to 2 decimal places
 *
 * @example
 * const total = calculateTotal(
 *   [{ quantity: 2, unitPrice: 10 }],
 *   0.08,
 *   { type: 'percentage', value: 10 }
 * );
 * // Returns: 19.44 (20 - 10% = 18, 18 * 1.08 = 19.44)
 *
 * @throws {InvalidInputError} If items array is empty
 * @throws {InvalidInputError} If tax rate is negative
 */
export function calculateTotal(
  items: CartItem[],
  taxRate: number,
  discount?: Discount
): number {
  // Implementation
}

AI generates comprehensive JSDoc comments including parameters, returns, examples, and error conditions.

Best Practices

  • Use AI for first drafts, then add domain-specific context
  • Establish documentation standards before AI generation
  • Include examples in documentation requests
  • Set up automated checks for documentation freshness
  • Create documentation templates for AI to follow

Considerations

Benefits
  • • Significantly faster documentation creation
  • • More consistent documentation style
  • • Better coverage of API documentation
  • • Easier to keep docs in sync with code
  • • Multiple documentation formats from one source
Challenges
  • • AI may miss business context and nuances
  • • Generated docs need human verification
  • • Risk of generic, unhelpful documentation
  • • May not capture architectural decisions
  • • Requires good code quality for accurate analysis

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