Code Quality Pipeline

Code Quality Workflow for @j0kz/mcp-agents

Systematic approach to improving code quality using smart-reviewer and test-generator MCP tools.

When to Use This Workflow

• Before creating pull request - Pre-PR quality gate
• After significant refactoring - Verify no regressions
• During codebase audits - Systematic quality improvement
• When CI/CD quality checks fail - Fix issues systematically
• Adding new features - Ensure quality from start

5-Step Quality Pattern

1. Initial Assessment → Identify files needing review
2. Smart Review → Categorize issues (critical/moderate/minor)
3. Auto-Fix (Pareto 80/20) → Apply safe fixes automatically
4. Generate Tests → Cover untested code
5. Re-Review → Verify improvements

Quick Start

For Changed Files (Pre-PR)

# Get changed files
git diff --name-only main...HEAD | grep -E '\.(ts|js)$'

Batch Review

Tool: batch_review
Input: {
  "filePaths": ["file1.ts", "file2.ts"],
  "config": { "severity": "strict" }
}

Apply Auto-Fixes

Tool: apply_auto_fixes
Input: {
  "filePath": "src/module.ts",
  "safeOnly": true  // Always true for automation
}

Generate Tests

Tool: write_test_file
Input: {
  "sourceFile": "src/module.ts",
  "config": {
    "framework": "vitest",
    "coverage": 80
  }
}

Severity Configuration

For detailed severity configuration:

cat .claude/skills/code-quality-pipeline/references/severity-config-guide.md

Auto-Fix with Pareto Principle

Key Insight: 20% of fixes resolve 80% of issues

Safe Auto-Fixes (Apply Automatically)

• Formatting & indentation
• Import organization
• Unused code removal
• Simple type fixes
• Naming consistency

Manual Fixes (Review Required)

• Logic changes
• Refactoring suggestions
• Architecture improvements
• Complex type inference

For complete auto-fix patterns:

cat .claude/skills/code-quality-pipeline/references/auto-fix-patterns.md

Test Generation

Configuration

{
  "framework": "vitest",      // Standard for @j0kz
  "includeEdgeCases": true,   // Boundary conditions
  "includeErrorCases": true,  // Error paths
  "coverage": 80              // Target percentage
}

What Gets Generated

• Unit tests for functions
• Edge cases (null, empty, boundaries)
• Error handling tests
• Async operation tests
• Mock setups

For test generation details:

cat .claude/skills/code-quality-pipeline/references/test-generation-guide.md

Common Patterns

Pattern 1: Fast Pre-Commit

Time: 1-2 minutes
1. Review staged files (moderate)
2. Apply safe auto-fixes
3. Run tests

Pattern 2: Comprehensive Pre-PR

Time: 5-15 minutes
1. Review all changes (strict)
2. Auto-fix safe issues
3. Manual fix critical issues
4. Generate missing tests
5. Verify coverage >75%

Pattern 3: Legacy Code Improvement

Time: 30-60 minutes
1. Review with moderate severity
2. Apply all safe fixes
3. Fix critical issues manually
4. Generate test suite
5. Re-review for verification

For complete workflow examples:

cat .claude/skills/code-quality-pipeline/references/complete-workflow-examples.md

Expected Outcomes

After Auto-Fix (Safe Only)

Issues: -73% average reduction
Formatting: 100% consistent
Imports: 100% organized
Dead code: 100% removed

After Full Pipeline

Critical issues: 0
Complexity: <50
Coverage: >75%
Maintainability: >80

Issue Priority Guide

Critical (Fix Before Merge)

• Security vulnerabilities
• Type safety violations
• Resource leaks
• Null/undefined errors

Moderate (Fix If Time)

• High complexity (>70)
• Missing documentation
• Performance issues
• Duplicate code

Minor (Future Cleanup)

• Style preferences
• Micro-optimizations
• Comment improvements

Integration with Other Tools

With orchestrator-mcp

Tool: run_workflow
Input: {
  "workflow": "pre-merge",
  "params": { "files": ["..."] }
}

With modular-refactoring

After quality pipeline, if complexity >50:

• Apply modular-refactoring-pattern
• Split files >300 LOC
• Extract to helpers/utils

Troubleshooting

Quick Commands

# After quality improvements
npm test                         # Run tests
npm run test:coverage            # Check coverage
npm run update:test-count        # Update badges
git diff                         # Review changes

Related Skills

• mcp-workflow-composition: Orchestrate multiple tools
• modular-refactoring-pattern: Reduce complexity
• testing-patterns-vitest: Deep testing guidance

Scripts Available

Check the scripts/ directory for automation:

ls .claude/skills/code-quality-pipeline/scripts/

For project standards: .claude/skills/project-standardization/SKILL.md For workflow orchestration: .claude/skills/mcp-workflow-composition/SKILL.md