SessionStart hook that prints a daily Claude Code retro at the top of every session — competency grade (0–100, A–F), 14-day efficiency sparklines, and a year-long contributions heatmap.

Monitors and logs database query performance metrics with slow query detection, N+1 analysis, and optimization suggestions using PostgreSQL pg_stat_statements, Prisma query logging, Sequelize query logging, TypeORM query logging, and Bullet N+1 detection patterns.

Automatically backs up changed files to cloud storage when Claude Code session ends using AWS S3, Google Cloud Storage, or rclone for universal cloud provider support.

Performs a comprehensive security audit of all dependencies when Claude Code session ends using npm audit (npm 10.x+), yarn audit (Yarn 4.x+), pip-audit 2.7.x+, safety, bundler-audit, and OWASP dep-scan.

Automatically rebuilds Docker containers when Dockerfile or docker-compose.yml files are modified. This PostToolUse hook triggers automatic Docker image rebuilding when Docker-related files (Dockerfile, docker-compose.yml, .dockerignore) are modified, providing real-time container synchronization during development.

Automatically commits all changes with a summary when Claude Code session ends.

Tracks all Claude Code activities in real-time and logs them for monitoring and debugging.

Scans for potential sensitive data exposure and alerts immediately.

Sends progress updates to Slack channel for team visibility on Claude activities.

Automatically compiles and validates Svelte components when they are modified.

Generates and sends a comprehensive summary email to the team when session ends.

Automatically runs terraform plan when .tf files are modified to preview infrastructure changes.

Automated database migration management with rollback capabilities, validation, and multi-environment support using Knex 3.x, Sequelize 6.x/7.x, TypeORM 0.3.x, Django 5.x, and Rails 7.x.

Automatically generates and updates project documentation from code comments, README files, and API definitions. This PostToolUse hook provides real-time documentation generation when code files are modified, supporting multiple programming languages and documentation formats.

Automated security vulnerability scanning that integrates with development workflow to detect and prevent security issues before deployment.

Automatically detects and removes unused code, imports, and dependencies with safe deletion verification and rollback support using Knip 5.x, ts-prune, depcheck, autoflake, Vulture, and ESLint 9.37.0.

Real-time vulnerability scanning for dependencies with automated CVE detection, severity assessment, and patch recommendations. This PostToolUse hook automatically triggers security scans when dependency manifest files (package.json, requirements.txt, Cargo.toml, go.mod, Gemfile, composer.json) are modified.

Comprehensive Docker image vulnerability scanning with layer analysis, base image recommendations, and security best practices enforcement. This PostToolUse hook automatically scans Docker images for vulnerabilities when Dockerfiles are modified, providing real-time security validation during development.

Automated documentation coverage analysis with missing docstring detection, API documentation validation, and completeness scoring. This PostToolUse hook automatically checks documentation coverage when code files are modified, providing real-time documentation quality validation during development.

Automated accessibility testing and compliance checking for web applications following WCAG 2.1 and WCAG 2.2 guidelines. This hook automatically runs accessibility scans on HTML files after they are written or edited, using axe-core for comprehensive WCAG compliance testing.

Automatically generates or updates API documentation when endpoint files are modified, supporting OpenAPI 3.1.0, Swagger 2.0, and AsyncAPI 2.0 specifications.

Automatically formats code files after Claude writes or edits them using industry-standard formatters including Prettier 3.6.2+ (JavaScript/TypeScript/Web), Black or Ruff (Python), gofmt (Go), and rustfmt (Rust).

Automatically creates timestamped backups of files before modification to prevent data loss. This hook runs before file editing operations (Edit, Write, Multiedit) and creates versioned backups in a centralized .backups directory with ISO 8601-compliant timestamps including nanoseconds for collision prevention.

Validates AWS CloudFormation templates for syntax errors and best practices using cfn-lint v1.40.4+ and AWS CLI v2.27.54+.

Alerts when code complexity exceeds thresholds in real-time using cyclomatic complexity analysis, line count monitoring, function count analysis, and nesting level detection.

Detects unused CSS selectors when stylesheets are modified to keep CSS lean using PurgeCSS, PostCSS, and content analysis. This hook runs on CSS/SCSS file write/edit operations and analyzes stylesheets to identify unused selectors, generate optimized output, and report before/after size metrics.

Closes all database connections and cleans up resources when Claude Code session ends using PostgreSQL pg_terminate_backend, MySQL KILL, MongoDB connection management, and Redis CLIENT KILL commands.

Sends development activity updates to Discord channel for team collaboration. This Notification hook automatically sends rich embed messages to Discord webhooks when Claude Code activities occur, providing real-time team visibility into development workflows.

Automatically generates or updates project documentation when session ends.

Cleans up temporary files, caches, and resources when Claude session ends. This Stop hook provides comprehensive environment cleanup for development projects, automatically removing temporary files, build artifacts, cache directories, and system-specific files across multiple platforms.