Documentation QA Knowledge Base

Quick reference for documentation quality assessment and audit criteria.

Quality Dimensions

Core Quality Metrics

Dimension	Description	Weight
Completeness	All APIs/features documented	25%
Accuracy	Code matches documentation	25%
Clarity	Understandable, no jargon	20%
Consistency	Terms, style, format uniform	15%
Navigation	Easy to find information	10%
Freshness	Up-to-date with latest version	5%

Quality Scoring

Score = (Completeness × 0.25) + (Accuracy × 0.25) + (Clarity × 0.20)
      + (Consistency × 0.15) + (Navigation × 0.10) + (Freshness × 0.05)

Rating:
90-100: Excellent
75-89:  Good
60-74:  Adequate
40-59:  Poor
0-39:   Critical

Audit Checklists

README Checklist

Item	Required	Score
Project name and description	✅	/10
Installation instructions	✅	/15
Basic usage example	✅	/15
Requirements/dependencies	✅	/10
License	✅	/5
Badges (build, coverage, version)	⚪	/5
Contributing link	⚪	/5
Documentation links	⚪	/10
Changelog link	⚪	/5
Examples work (copy-paste test)	✅	/20

Total: /100

API Documentation Checklist

Item	Required	Score
All public classes documented	✅	/15
All public methods documented	✅	/15
Parameters with types and descriptions	✅	/15
Return types documented	✅	/10
Exceptions documented	✅	/10
Usage examples per endpoint	✅	/15
Request/response examples	⚪	/10
Error responses documented	⚪	/10

Total: /100

Architecture Documentation Checklist

Item	Required	Score
System overview	✅	/15
Component descriptions	✅	/15
Data flow diagrams	✅	/15
Technology stack	✅	/10
Decision records (ADRs)	⚪	/15
Diagrams render correctly	✅	/10
Consistent terminology	✅	/10
Cross-references work	⚪	/10

Total: /100

Detection Patterns

Completeness Detection

# Find undocumented public classes
Grep: "^class |^final class |^abstract class " --glob "src/**/*.php"
# Compare with: Grep: "## " --glob "docs/api/**/*.md"

# Find undocumented public methods
Grep: "public function " --glob "src/**/*.php" | wc -l
# Compare with documented count

# Check README sections
Grep: "## Installation|## Usage|## Features" --glob "README.md"

Accuracy Detection

# Find version mismatches
Grep: "version.*[0-9]+\.[0-9]+" --glob "README.md"
# Compare with: Grep: '"version"' --glob "composer.json"

# Find non-existent paths in docs
Grep: "src/[A-Za-z/]+" --glob "docs/**/*.md"
# Verify each path exists

# Find outdated code examples
# Extract code blocks and verify they match current API

Clarity Detection

# Find undefined acronyms
Grep: "\b[A-Z]{2,}\b" --glob "docs/**/*.md"
# Check for glossary/definition nearby

# Find jargon without explanation
# Manual review of: DDD, CQRS, VO, DTO first usage

# Find walls of text (paragraphs > 5 lines)
# Manual review recommended

Navigation Detection

# Find broken internal links
Grep: "\]\((?!http)[^\)]+\)" --glob "**/*.md"
# Verify each relative path exists

# Find missing TOC in long docs (> 100 lines)
wc -l docs/**/*.md | awk '$1 > 100 {print $2}'
# Check for: Grep: "## Table of Contents|## Contents" in each

# Find orphan pages (not linked from anywhere)
# Cross-reference all .md files

Diagram Quality Detection

# Find diagrams with too many elements
Grep: "^\s*[A-Za-z].*\[|^\s*[A-Za-z].*\(" --glob "**/*.md" -A 50
# Count nodes in each mermaid block

# Find diagrams without labels
Grep: "A-->B|1-->2" --glob "**/*.md"
# Should have descriptive IDs

# Find non-rendering mermaid
# Test each ```mermaid block

Issue Severity Levels

Critical (Must Fix)

❌ Missing installation instructions
❌ Broken copy-paste examples
❌ Wrong/outdated code syntax
❌ Missing license
❌ Dead links to key resources
❌ Security-sensitive info in examples

Warning (Should Fix)

⚠️ Missing API documentation
⚠️ No usage examples
⚠️ Outdated screenshots
⚠️ Inconsistent terminology
⚠️ Missing error handling docs
⚠️ Diagrams don't match code

Info (Nice to Have)

ℹ️ No badges
ℹ️ Missing contributing guide
ℹ️ No FAQ section
ℹ️ Basic diagrams could be improved
ℹ️ Could add more examples

Audit Report Template

# Documentation Audit Report

**Project:** {name}
**Date:** {date}
**Auditor:** Claude Code

## Summary

| Metric | Score | Status |
|--------|-------|--------|
| Overall | X/100 | ⚠️ |
| Completeness | X/100 | ✅ |
| Accuracy | X/100 | ❌ |
| Clarity | X/100 | ✅ |
| Consistency | X/100 | ⚠️ |
| Navigation | X/100 | ✅ |

## Critical Issues

### 1. {Issue Title}
- **Location:** {file:line}
- **Problem:** {description}
- **Impact:** {who is affected}
- **Fix:** {recommendation}

## Warnings

### 1. {Issue Title}
- **Location:** {file}
- **Problem:** {description}
- **Recommendation:** {fix}

## Recommendations

1. {Priority action 1}
2. {Priority action 2}
3. {Priority action 3}

## Detailed Findings

### README.md
- [ ] {item}: {status}

### API Documentation
- [ ] {item}: {status}

### Architecture Documentation
- [ ] {item}: {status}

## Next Steps

1. Fix critical issues immediately
2. Address warnings in next sprint
3. Consider recommendations for roadmap

Quality Improvement Guide

Quick Wins

Action	Impact	Effort
Fix broken links	High	Low
Add missing badges	Medium	Low
Add code examples	High	Medium
Create README template	High	Medium
Add link checker CI	Medium	Low

Long-term Improvements

Action	Impact	Effort
Generate API docs from code	High	High
Implement doc-as-code	High	High
Create style guide	Medium	Medium
Add example testing	High	Medium
Diagram automation	Medium	High

Automation Opportunities

CI/CD Integration

# Example doc validation workflow
documentation:
  checks:
    - markdown-lint
    - link-check
    - spelling
    - code-example-test
    - mermaid-validate

Tools

Tool	Purpose
markdownlint	Markdown style
markdown-link-check	Broken links
alex	Inclusive language
mermaid-cli	Diagram validation
doctoc	TOC generation

References

For detailed information, load these reference files:

• references/audit-procedures.md — Step-by-step audit process
• references/scoring-rubrics.md — Detailed scoring criteria
• references/common-issues.md — Frequent documentation problems
• references/automation.md — CI/CD integration patterns