codex exec -C <project_path> -s read-only -o /tmp/codex-review.md \
  "Review the code in <file_or_directory>. Check for:
   - Security vulnerabilities
   - Performance issues
   - Code quality and best practices
   - Potential bugs and edge cases
   - Naming and readability
   Provide specific, actionable feedback with file paths and line numbers."

cat /tmp/codex-review.md

codex exec -C <project_path> -s read-only \
  "Verify the fixes applied to <files>. Confirm issues are resolved."

# Step 1: Get Codex review
codex exec -C /project -s read-only -o /tmp/codex-review.md \
  "Review src/auth/login.ts for security vulnerabilities and code quality issues. Provide specific line numbers and fixes."

# Step 2: Read the feedback
cat /tmp/codex-review.md

# Get diff of recent changes
git diff HEAD~1 > /tmp/recent-changes.diff

# Step 1: Have Codex review the diff
codex exec -C /project -s read-only -o /tmp/codex-review.md \
  "Review the changes in the last commit. Check for bugs, security issues, and improvements needed."

# Step 2: Read and apply fixes
cat /tmp/codex-review.md

# Step 1: Comprehensive review
codex exec -C /project -s read-only -o /tmp/codex-review.md \
  "Perform a comprehensive code review of src/. Focus on:
   1. Security vulnerabilities (OWASP Top 10)
   2. Error handling patterns
   3. Performance bottlenecks
   4. Code duplication
   Prioritize issues by severity (critical/high/medium/low)."

# Step 2: Read prioritized feedback
cat /tmp/codex-review.md

Review <target_files_or_directory>.

Context:
- Project type: <TypeScript/Python/etc>
- Framework: <Express/React/etc>
- Focus areas: <security/performance/quality>

Check for:
1. Security vulnerabilities
2. Performance issues
3. Error handling
4. Code quality
5. Edge cases

Output format:
For each issue:
- File: <path>
- Line: <number>
- Severity: critical/high/medium/low
- Issue: <description>
- Fix: <specific code change>

# Install via npm
npm install -g @openai/codex

# Or via Homebrew (macOS)
brew install --cask codex

# Authenticate
codex login

codex exec [options] "<task_description>"

codex exec -C /project -s read-only \
  "Verify the implementation in src/feature/. Check correctness and edge cases."

codex exec -C /project -s read-only -o /tmp/alternative.md \
  "Propose an alternative implementation for the caching in src/cache/manager.ts"

codex exec -C /project -s read-only \
  "Debug: tests in tests/auth.test.ts failing with timeout. Analyze root cause."

# Initial review
codex exec -C /project -s read-only "Review src/api/ for security issues"
# Note session ID from output

# Follow-up after fixes
codex exec resume <session_id> "I've applied the fixes. Please re-verify."

codex logout
codex login

codex --version
which codex