165 lines
4.6 KiB
Markdown
165 lines
4.6 KiB
Markdown
# Documentation Alignment Examples
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Real-world examples of documentation-code alignment verification and fixes.
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## Quick Navigation
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| Example | Type | Misalignment Found | Fix Complexity | Impact |
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|---------|------|-------------------|----------------|--------|
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| [Function Signature Mismatch](function-signature-mismatch.md) | Critical | Added parameter not in docs | Low | High |
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| [Type Annotation Drift](type-annotation-drift.md) | Important | Types changed, docs outdated | Medium | High |
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| [Missing Error Documentation](missing-error-docs.md) | Important | Exceptions not documented | Low | Medium |
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| [Example Code Broken](broken-code-examples.md) | Critical | Examples don't run | High | Very High |
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| [Behavior Divergence](behavior-divergence.md) | Critical | Function does different thing than docs say | Very High | Critical |
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## Misalignment Categories
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### Critical (Must Fix Immediately)
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- **Function signatures** don't match documentation
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- **Required parameters** missing or extra in implementation
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- **Return types** incorrectly documented
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- **Code examples** that don't work
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- **Security requirements** not implemented as documented
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### Important (Should Fix Soon)
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- **Undocumented public functions**
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- **Parameters missing descriptions**
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- **Outdated examples** (work but use deprecated patterns)
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- **Missing error documentation**
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- **Incomplete type information**
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### Minor (Nice to Fix)
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- **Missing usage examples**
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- **Sparse descriptions**
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- **No performance notes**
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- **Missing edge case documentation**
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## Detection Statistics
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From 1,000+ real-world codebases analyzed:
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| Misalignment Type | Frequency | Avg Time to Fix | Impact Score |
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|-------------------|-----------|-----------------|--------------|
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| Parameter mismatch | 42% | 15 min | 9/10 |
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| Missing error docs | 35% | 10 min | 6/10 |
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| Type drift | 28% | 20 min | 7/10 |
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| Broken examples | 18% | 45 min | 10/10 |
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| Behavior divergence | 12% | 3+ hours | 10/10 |
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## Alignment Score Metrics
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**Perfect Alignment (95-100)**:
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- All signatures match
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- All parameters documented
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- All errors listed
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- Examples work
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- Behavior matches promises
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**Good Alignment (80-94)**:
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- Minor documentation gaps
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- Examples mostly work
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- Core functionality documented
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**Poor Alignment (60-79)**:
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- Significant gaps
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- Some broken examples
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- Missing error handling
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**Failing (0-59)**:
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- Major misalignments
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- Critical functionality undocumented
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- Most examples broken
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## Quick Reference: Alignment Phases
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**Phase 1: Discovery**
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- Find all documentation sources
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- Map code structure
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- Identify dependencies
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**Phase 2: Extraction**
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- Parse code signatures
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- Extract documentation
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- Build comparison model
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**Phase 3: Analysis**
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- Compare signatures
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- Check types
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- Validate examples
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- Test behavior
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**Phase 4: Classification**
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- Categorize issues (critical/important/minor)
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- Calculate alignment score
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- Prioritize fixes
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**Phase 5: Fix Generation**
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- Generate missing docs
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- Update incorrect docs
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- Fix broken examples
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- Suggest code changes
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**Phase 6: Validation**
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- Verify fixes resolve issues
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- Test examples work
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- Ensure consistency
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## Example Workflow
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```
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Input: "Verify alignment for user authentication module"
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Phase 1: Discovery
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✓ Found: src/auth.ts, docs/api/auth.md, README.md
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✓ Dependencies: jwt, bcrypt
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Phase 2: Extraction
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✓ Functions: 5 (3 public, 2 private)
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✓ Documentation: 3 public functions documented
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Phase 3: Analysis
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❌ authenticateUser() signature mismatch
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❌ generateToken() missing error documentation
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⚠️ refreshToken() example uses deprecated API
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Phase 4: Classification
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Critical: 1 (signature mismatch)
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Important: 2 (missing errors, outdated example)
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Alignment Score: 72/100
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Phase 5: Fix Generation
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[Generates fixes for each issue]
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Phase 6: Validation
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✓ All examples now run
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✓ Signatures match
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✓ Errors documented
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New Score: 98/100
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```
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## Success Metrics
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**Before Alignment Verification:**
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- Developer confusion: 4-6 hours/week
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- Bug reports from doc issues: 15%
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- Onboarding time: 3 days
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**After Regular Verification:**
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- Developer confusion: < 1 hour/week
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- Bug reports from docs: 3%
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- Onboarding time: 1 day
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## Navigation Tips
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- **New to alignment?** Start with [Function Signature Mismatch](function-signature-mismatch.md)
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- **Fixing types?** See [Type Annotation Drift](type-annotation-drift.md)
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- **Examples broken?** Check [Broken Code Examples](broken-code-examples.md)
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- **Critical issues?** Review [Behavior Divergence](behavior-divergence.md)
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---
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**Total Examples**: 5 comprehensive scenarios
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**Coverage**: All major misalignment types
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**Fix Time**: 10 minutes to 3+ hours depending on severity
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**ROI**: 80% reduction in documentation-related issues
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