Github Code Review

// webhook-handler.js
const { createServer } = require('http');
const { execSync } = require('child_process');

createServer((req, res) => {
  if (req.url === '$github-webhook') {
    const event = JSON.parse(body);

    if (event.action === 'opened' && event.pull_request) {
      execSync(`npx ruv-swarm github pr-init ${event.pull_request.number}`);
    }

    if (event.comment && event.comment.body.startsWith('$swarm')) {
      const command = event.comment.body;
      execSync(`npx ruv-swarm github handle-comment --pr ${event.issue.number} --command "${command}"`);
    }

    res.writeHead(200);
    res.end('OK');
  }
}).listen(3000);

<$details>

⚙️ Review Configuration

Configuration File

# .github$review-swarm.yml
version: 1
review:
  auto-trigger: true
  required-agents:
    - security
    - performance
    - style
  optional-agents:
    - architecture
    - accessibility
    - i18n

  thresholds:
    security: block      # Block merge on security issues
    performance: warn    # Warn on performance issues
    style: suggest       # Suggest style improvements

  rules:
    security:
      - no-eval
      - no-hardcoded-secrets
      - proper-auth-checks
      - validate-input
    performance:
      - no-n-plus-one
      - efficient-queries
      - proper-caching
      - optimize-loops
    architecture:
      - max-coupling: 5
      - min-cohesion: 0.7
      - follow-patterns
      - avoid-circular-deps

Custom Review Triggers

{
  "triggers": {
    "high-risk-files": {
      "paths": ["**$auth/**", "**$payment/**", "**$admin/**"],
      "agents": ["security", "architecture"],
      "depth": "comprehensive",
      "require-approval": true
    },
    "performance-critical": {
      "paths": ["**$api/**", "**$database/**", "**$cache/**"],
      "agents": ["performance", "database"],
      "benchmarks": true,
      "regression-threshold": "5%"
    },
    "ui-changes": {
      "paths": ["**$components/**", "**$styles/**", "**$pages/**"],
      "agents": ["accessibility", "style", "i18n"],
      "visual-tests": true,
      "responsive-check": true
    }
  }
}

🤖 Automated Workflows

Auto-Review on PR Creation

# .github$workflows$auto-review.yml
name: Automated Code Review
on:
  pull_request:
    types: [opened, synchronize]
  issue_comment:
    types: [created]

jobs:
  swarm-review:
    runs-on: ubuntu-latest
    steps:
      - uses: actions$checkout@v3
        with:
          fetch-depth: 0

      - name: Setup GitHub CLI
        run: echo "${{ secrets.GITHUB_TOKEN }}" | gh auth login --with-token

      - name: Run Review Swarm
        run: |
          # Get PR context with gh CLI
          PR_NUM=${{ github.event.pull_request.number }}
          PR_DATA=$(gh pr view $PR_NUM --json files,title,body,labels)
          PR_DIFF=$(gh pr diff $PR_NUM)

          # Run swarm review
          REVIEW_OUTPUT=$(npx ruv-swarm github review-all \
            --pr $PR_NUM \
            --pr-data "$PR_DATA" \
            --diff "$PR_DIFF" \
            --agents "security,performance,style,architecture")

          # Post review results
          echo "$REVIEW_OUTPUT" | gh pr review $PR_NUM --comment -F -

          # Update PR status
          if echo "$REVIEW_OUTPUT" | grep -q "approved"; then
            gh pr review $PR_NUM --approve
          elif echo "$REVIEW_OUTPUT" | grep -q "changes-requested"; then
            gh pr review $PR_NUM --request-changes -b "See review comments above"
          fi

      - name: Update Labels
        run: |
          # Add labels based on review results
          if echo "$REVIEW_OUTPUT" | grep -q "security"; then
            gh pr edit $PR_NUM --add-label "security-review"
          fi
          if echo "$REVIEW_OUTPUT" | grep -q "performance"; then
            gh pr edit $PR_NUM --add-label "performance-review"
          fi

💬 Intelligent Comment Generation

Generate Contextual Review Comments

# Get PR diff with context
PR_DIFF=$(gh pr diff 123 --color never)
PR_FILES=$(gh pr view 123 --json files)

# Generate review comments
COMMENTS=$(npx ruv-swarm github review-comment \
  --pr 123 \
  --diff "$PR_DIFF" \
  --files "$PR_FILES" \
  --style "constructive" \
  --include-examples \
  --suggest-fixes)

# Post comments using gh CLI
echo "$COMMENTS" | jq -c '.[]' | while read -r comment; do
  FILE=$(echo "$comment" | jq -r '.path')
  LINE=$(echo "$comment" | jq -r '.line')
  BODY=$(echo "$comment" | jq -r '.body')
  COMMIT_ID=$(gh pr view 123 --json headRefOid -q .headRefOid)

  # Create inline review comments
  gh api \
    --method POST \
    $repos/:owner/:repo$pulls/123$comments \
    -f path="$FILE" \
    -f line="$LINE" \
    -f body="$BODY" \
    -f commit_id="$COMMIT_ID"
done

Batch Comment Management

# Manage review comments efficiently
npx ruv-swarm github review-comments \
  --pr 123 \
  --group-by "agent,severity" \
  --summarize \
  --resolve-outdated

🚪 Quality Gates & Checks

Status Checks

# Required status checks in branch protection
protection_rules:
  required_status_checks:
    strict: true
    contexts:
      - "review-swarm$security"
      - "review-swarm$performance"
      - "review-swarm$architecture"
      - "review-swarm$tests"

Define Quality Gates

# Set quality gate thresholds
npx ruv-swarm github quality-gates \
  --define '{
    "security": {"threshold": "no-critical"},
    "performance": {"regression": "<5%"},
    "coverage": {"minimum": "80%"},
    "architecture": {"complexity": "<10"},
    "duplication": {"maximum": "5%"}
  }'

Track Review Metrics

# Monitor review effectiveness
npx ruv-swarm github review-metrics \
  --period 30d \
  --metrics "issues-found,false-positives,fix-rate,time-to-review" \
  --export-dashboard \
  --format json

🎓 Advanced Features

Context-Aware Reviews

Analyze PRs with full project context:

# Review with comprehensive context
npx ruv-swarm github review-context \
  --pr 123 \
  --load-related-prs \
  --analyze-impact \
  --check-breaking-changes \
  --dependency-analysis

Learning from History

Train review agents on your codebase patterns:

# Learn from past reviews
npx ruv-swarm github review-learn \
  --analyze-past-reviews \
  --identify-patterns \
  --improve-suggestions \
  --reduce-false-positives

# Train on your codebase
npx ruv-swarm github review-train \
  --learn-patterns \
  --adapt-to-style \
  --improve-accuracy

Cross-PR Analysis

Coordinate reviews across related pull requests:

# Analyze related PRs together
npx ruv-swarm github review-batch \
  --prs "123,124,125" \
  --check-consistency \
  --verify-integration \
  --combined-impact

Multi-PR Swarm Coordination

# Coordinate swarms across related PRs
npx ruv-swarm github multi-pr \
  --prs "123,124,125" \
  --strategy "parallel" \
  --share-memory

🛠️ Custom Review Agents

Create Custom Agent

// custom-review-agent.js
class CustomReviewAgent {
  constructor(config) {
    this.config = config;
    this.rules = config.rules || [];
  }

  async review(pr) {
    const issues = [];

    // Custom logic: Check for TODO comments in production code
    if (await this.checkTodoComments(pr)) {
      issues.push({
        severity: 'warning',
        file: pr.file,
        line: pr.line,
        message: 'TODO comment found in production code',
        suggestion: 'Resolve TODO or create issue to track it'
      });
    }

    // Custom logic: Verify API versioning
    if (await this.checkApiVersioning(pr)) {
      issues.push({
        severity: 'error',
        file: pr.file,
        line: pr.line,
        message: 'API endpoint missing versioning',
        suggestion: 'Add $v1/, $v2/ prefix to API routes'
      });
    }

    return issues;
  }

  async checkTodoComments(pr) {
    // Implementation
    const todoRegex = /\/\/\s*TODO|\/\*\s*TODO$gi;
    return todoRegex.test(pr.diff);
  }

  async checkApiVersioning(pr) {
    // Implementation
    const apiRegex = $app\.(get|post|put|delete)\(['"]\$api\/(?!v\d+)/;
    return apiRegex.test(pr.diff);
  }
}

module.exports = CustomReviewAgent;

Register Custom Agent

# Register custom review agent
npx ruv-swarm github register-agent \
  --name "custom-reviewer" \
  --file ".$custom-review-agent.js" \
  --category "standards"

🔧 CI/CD Integration

Integration with Build Pipeline

# .github$workflows$build-and-review.yml
name: Build and Review
on: [pull_request]

jobs:
  build-and-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions$checkout@v3
      - run: npm install
      - run: npm test
      - run: npm run build

  swarm-review:
    needs: build-and-test
    runs-on: ubuntu-latest
    steps:
      - name: Run Swarm Review
        run: |
          npx ruv-swarm github review-all \
            --pr ${{ github.event.pull_request.number }} \
            --include-build-results

Automated PR Fixes

# Auto-fix common issues
npx ruv-swarm github pr-fix 123 \
  --issues "lint,test-failures,formatting" \
  --commit-fixes \
  --push-changes

Progress Updates to PR

# Post swarm progress to PR using gh CLI
PROGRESS=$(npx ruv-swarm github pr-progress 123 --format markdown)

gh pr comment 123 --body "$PROGRESS"

# Update PR labels based on progress
if [[ $(echo "$PROGRESS" | grep -o '[0-9]\+%' | sed 's/%//') -gt 90 ]]; then
  gh pr edit 123 --add-label "ready-for-review"
fi

📋 Complete Workflow Examples

Example 1: Security-Critical PR

# Review authentication system changes
npx ruv-swarm github review-init \
  --pr 456 \
  --agents "security,authentication,audit" \
  --depth "maximum" \
  --require-security-approval \
  --penetration-test

Example 2: Performance-Sensitive PR

# Review database optimization
npx ruv-swarm github review-init \
  --pr 789 \
  --agents "performance,database,caching" \
  --benchmark \
  --profile \
  --load-test

Example 3: UI Component PR

# Review new component library
npx ruv-swarm github review-init \
  --pr 321 \
  --agents "accessibility,style,i18n,docs" \
  --visual-regression \
  --component-tests \
  --responsive-check

Example 4: Feature Development PR

# Review new feature implementation
gh pr view 456 --json body,labels,files | \
  npx ruv-swarm github pr-init 456 \
    --topology hierarchical \
    --agents "architect,coder,tester,security" \
    --auto-assign-tasks

Example 5: Bug Fix PR

# Review bug fix with debugging focus
npx ruv-swarm github pr-init 789 \
  --topology mesh \
  --agents "debugger,analyst,tester" \
  --priority high \
  --regression-test

📊 Monitoring & Analytics

Review Dashboard

# Launch real-time review dashboard
npx ruv-swarm github review-dashboard \
  --real-time \
  --show "agent-activity,issue-trends,fix-rates,coverage"

Generate Review Reports

# Create comprehensive review report
npx ruv-swarm github review-report \
  --format "markdown" \
  --include "summary,details,trends,recommendations" \
  --email-stakeholders \
  --export-pdf

PR Swarm Analytics

# Generate PR-specific analytics
npx ruv-swarm github pr-report 123 \
  --metrics "completion-time,agent-efficiency,token-usage,issue-density" \
  --format markdown \
  --compare-baseline

Export to GitHub Insights

# Export metrics to GitHub Insights
npx ruv-swarm github export-metrics \
  --pr 123 \
  --to-insights \
  --dashboard-url

🔐 Security Considerations

Best Practices

1. Token Permissions: Ensure GitHub tokens have minimal required scopes
2. Command Validation: Validate all PR comments before execution
3. Rate Limiting: Implement rate limits for PR operations
4. Audit Trail: Log all swarm operations for compliance
5. Secret Management: Never expose API keys in PR comments or logs

Security Checklist

• GitHub token scoped to repository only
• Webhook signatures verified
• Command injection protection enabled
• Rate limiting configured
• Audit logging enabled
• Secrets scanning active
• Branch protection rules enforced

📚 Best Practices

1. Review Configuration

• ✅ Define clear review criteria upfront
• ✅ Set appropriate severity thresholds
• ✅ Configure agent specializations for your stack
• ✅ Establish override procedures for emergencies

2. Comment Quality

• ✅ Provide actionable, specific feedback
• ✅ Include code examples with suggestions
• ✅ Reference documentation and best practices
• ✅ Maintain respectful, constructive tone

3. Performance Optimization

• ✅ Cache analysis results to avoid redundant work
• ✅ Use incremental reviews for large PRs
• ✅ Enable parallel agent execution
• ✅ Batch comment operations efficiently

4. PR Templates

<!-- .github$pull_request_template.md -->
## Swarm Configuration
- Topology: [mesh$hierarchical$ring$star]
- Max Agents: [number]
- Auto-spawn: [yes$no]
- Priority: [high$medium$low]

## Tasks for Swarm
- [ ] Task 1 description
- [ ] Task 2 description
- [ ] Task 3 description

## Review Focus Areas
- [ ] Security review
- [ ] Performance analysis
- [ ] Architecture validation
- [ ] Accessibility check

5. Auto-Merge When Ready

# Auto-merge when swarm completes and passes checks
SWARM_STATUS=$(npx ruv-swarm github pr-status 123)

if [[ "$SWARM_STATUS" == "complete" ]]; then
  # Check review requirements
  REVIEWS=$(gh pr view 123 --json reviews --jq '.reviews | length')

  if [[ $REVIEWS -ge 2 ]]; then
    # Enable auto-merge
    gh pr merge 123 --auto --squash
  fi
fi

🔗 Integration with Claude Code

Workflow Pattern

1. Claude Code reads PR diff and context
2. Swarm coordinates review approach based on PR type
3. Agents work in parallel on different review aspects
4. Progress updates posted to PR automatically
5. Final review performed before marking ready

Example: Complete PR Management

[Single Message - Parallel Execution]:
  // Initialize coordination
  mcp__claude-flow__swarm_init { topology: "hierarchical", maxAgents: 5 }
  mcp__claude-flow__agent_spawn { type: "reviewer", name: "Senior Reviewer" }
  mcp__claude-flow__agent_spawn { type: "tester", name: "QA Engineer" }
  mcp__claude-flow__agent_spawn { type: "coordinator", name: "Merge Coordinator" }

  // Create and manage PR using gh CLI
  Bash("gh pr create --title 'Feature: Add authentication' --base main")
  Bash("gh pr view 54 --json files,diff")
  Bash("gh pr review 54 --approve --body 'LGTM after automated review'")

  // Execute tests and validation
  Bash("npm test")
  Bash("npm run lint")
  Bash("npm run build")

  // Track progress
  TodoWrite { todos: [
    { content: "Complete code review", status: "completed", activeForm: "Completing code review" },
    { content: "Run test suite", status: "completed", activeForm: "Running test suite" },
    { content: "Validate security", status: "completed", activeForm: "Validating security" },
    { content: "Merge when ready", status: "pending", activeForm: "Merging when ready" }
  ]}

🆘 Troubleshooting

Common Issues

# Check swarm status
npx ruv-swarm swarm-status

# Verify GitHub CLI authentication
gh auth status

# Re-initialize swarm
npx ruv-swarm github review-init --pr 123 --force

# Verify GitHub token permissions
gh auth status

# Check API rate limits
gh api rate_limit

# Use batch comment posting
npx ruv-swarm github review-comments --pr 123 --batch

# Use incremental review for large PRs
npx ruv-swarm github review-init --pr 123 --incremental

# Reduce agent count
npx ruv-swarm github review-init --pr 123 --agents "security,style" --max-agents 3

# Enable parallel processing
npx ruv-swarm github review-init --pr 123 --parallel --cache-results