Documentation Architecture Examples

Real-world examples of comprehensive documentation generation, architecture documentation, and coverage validation.

Available Examples

Complete workflow for automatic API documentation generation from FastAPI codebase.

Scenario: E-commerce API with 47 undocumented endpoints causing 12 integration issues/week

Solution: Enhanced OpenAPI generation, multi-language examples, interactive Swagger UI, CI/CD auto-generation

Results: Integration issues 12/week → 0.5/week (96% reduction), manual doc time 4hrs → 0 (automated)

Key Techniques: FastAPI OpenAPI customization, Pydantic v2 field validators, example generation scripts

Comprehensive system architecture documentation reducing onboarding time from 3-4 weeks to 4-5 days.

Scenario: No architecture docs, tribal knowledge spread across 8 developers, 3-4 week onboarding

Solution: 8 Mermaid diagrams, Architecture Decision Records, progressive disclosure, version-controlled

Results: Onboarding 3-4 weeks → 4-5 days (75% reduction), architecture questions 15hrs/week → 2hrs/week

Key Techniques: Mermaid diagrams (system, sequence, data flow, ER), ADR template, multi-tenant flow docs

Automated documentation coverage analysis with 80% threshold enforcement in CI/CD.

Scenario: Unknown coverage, 147 undocumented functions, no visibility into gaps

Solution: TypeScript coverage (ts-morph), Python coverage (AST), HTML reports, CI/CD enforcement

Results: TS 42% → 87%, Python 38% → 91%, API 51% → 95%, undocumented 147 → 18

Key Techniques: AST parsing, OpenAPI schema analysis, coverage threshold enforcement, HTML reports

Automation First: All documentation generated/validated automatically
CI/CD Integration: Updates on every commit, coverage checks block PRs
Multi-Language Support: Examples in TypeScript, Python, cURL
Visual Documentation: Mermaid diagrams for architecture, sequences, data models
Progressive Disclosure: Start with overview, drill into details