diff --git a/.gitignore b/.gitignore
index 015da1b..8770716 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,5 @@ tests/**/tmp/
 
 # Logs
 *.log
+
+articles/
\ No newline at end of file
diff --git a/README.md b/README.md
index 8a890ee..c72e616 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ A collection of reusable git hook scripts for automating code quality checks and
 
 ## Features
 
+- **JavaScript/TypeScript**: ESLint, Prettier, TypeScript type checking, Vitest test runner, test existence validation
+- **Python**: Flake8 linting, Mypy static analysis, Pytest runner, service test validation (local and Docker modes)
 - **PHP/Laravel**: PHPStan analysis with progressive error reduction, Pint code style fixing, test coverage validation
 - **Docker**: Dockerfile linting with Hadolint
 - **Shell**: Script validation with ShellCheck
@@ -17,6 +19,33 @@ A collection of reusable git hook scripts for automating code quality checks and
 
 ## Available Scripts
 
+### JavaScript / TypeScript
+
+| Script | Description |
+|--------|-------------|
+| `javascript/check_eslint_all.sh` | Runs ESLint with `--fix` across the entire project (`app/`, `components/`, `lib/`, `types/`). |
+| `javascript/check_prettier.sh` | Runs Prettier on staged `.ts` files passed as arguments. |
+| `javascript/check_prettier_all.sh` | Runs Prettier on all TypeScript files using glob patterns. |
+| `javascript/check_tsc_all.sh` | Runs TypeScript type checking via `tsconfig.check.json`. |
+| `javascript/check_vitest.sh` | Runs Vitest for specified files or the full suite. Supports `--watch` and `--coverage`. |
+| `javascript/check_vitest_all.sh` | Runs the full Vitest test suite. |
+| `javascript/check_tests.sh` | Runs Vitest only for changed/staged TypeScript files, auto-discovers matching test files. |
+| `javascript/check_tests_all.sh` | Runs the full Vitest test suite (simple wrapper). |
+| `javascript/check_test_coverage.sh` | Runs Vitest with optional `--watch` and `--coverage` flags. |
+| `javascript/check_tests_exist.sh` | Validates that each staged TypeScript source file has a corresponding `tests/...test.ts` file. |
+
+### Python
+
+| Script | Description |
+|--------|-------------|
+| `python/check_flake8.sh` | Runs Flake8 locally on Python files (line length 120). |
+| `python/check_flake8_in_docker.sh` | Runs Flake8 inside the `app_dev` Docker container. |
+| `python/check_mypy.sh` | Runs Mypy locally on changed `app/*.py` files. |
+| `python/check_mypy_in_docker.sh` | Runs Mypy inside the Docker container, maps host/container paths. |
+| `python/check_pytest.sh` | Runs the full Pytest suite locally with `PYTHONPATH=./app`. |
+| `python/check_pytest_in_docker.sh` | Runs Pytest inside the Docker container, converts container paths to host paths. |
+| `python/find_test.sh` | Validates that each service in `app/services/` has exactly one corresponding test file. |
+
 ### PHP
 
 | Script | Description |
@@ -49,6 +78,56 @@ A collection of reusable git hook scripts for automating code quality checks and
 
 ## Usage Examples
 
+### JavaScript/TypeScript
+
+```bash
+# ESLint — fix entire project
+./javascript/check_eslint_all.sh
+
+# Prettier — format specific files
+./javascript/check_prettier.sh app/utils.ts lib/helpers.ts
+
+# TypeScript type check
+./javascript/check_tsc_all.sh
+
+# Run tests for changed files (auto-discovers matching test files)
+./javascript/check_tests.sh app/utils.ts app/helpers.ts
+
+# Run Vitest with coverage
+./javascript/check_vitest.sh --coverage
+
+# Run Vitest for specific files in watch mode
+./javascript/check_vitest.sh app/utils.ts --watch
+
+# Verify test files exist for staged sources
+./javascript/check_tests_exist.sh app/utils.ts components/Header.tsx
+```
+
+### Python
+
+```bash
+# Flake8 — local
+./python/check_flake8.sh app/services/user_service.py app/routes/api.py
+
+# Flake8 — in Docker
+./python/check_flake8_in_docker.sh app/services/user_service.py
+
+# Mypy — local
+./python/check_mypy.sh app/services/auth.py app/models/user.py
+
+# Mypy — in Docker
+./python/check_mypy_in_docker.sh app/services/auth.py
+
+# Pytest — local
+./python/check_pytest.sh
+
+# Pytest — in Docker
+./python/check_pytest_in_docker.sh
+
+# Verify test files exist for services
+./python/find_test.sh app/services/user_service.py app/services/auth.py
+```
+
 ### PHPStan with Progressive Error Reduction
 
 ```bash
@@ -85,12 +164,33 @@ A collection of reusable git hook scripts for automating code quality checks and
 #!/bin/bash
 # .git/hooks/pre-commit
 
+set -e
+
 FILES=$(git diff --cached --name-only --diff-filter=ACM)
-PHP_FILES=$(echo "$FILES" | grep '\.php$')
-SH_FILES=$(echo "$FILES" | grep '\.sh$')
 
-[[ -n "$PHP_FILES" ]] && ./php/check_phpstan.sh default $PHP_FILES
-[[ -n "$SH_FILES" ]] && ./scripts/check_shellcheck.sh $SH_FILES
+# JavaScript/TypeScript
+bash javascript/check_eslint_all.sh
+bash javascript/check_prettier.sh $FILES
+bash javascript/check_tests_exist.sh $FILES
+bash javascript/check_tests.sh $FILES
+
+# Python (local)
+bash python/check_flake8.sh $FILES
+bash python/check_mypy.sh $FILES
+bash python/find_test.sh $FILES
+
+# Python (Docker) — use instead of local variants if project runs in Docker
+# bash python/check_flake8_in_docker.sh $FILES
+# bash python/check_mypy_in_docker.sh $FILES
+# bash python/check_pytest_in_docker.sh
+
+# PHP
+PHP_FILES=$(echo "$FILES" | grep '\.php$' || true)
+[[ -n "$PHP_FILES" ]] && bash php/check_phpstan.sh default $PHP_FILES
+
+# Shell
+SH_FILES=$(echo "$FILES" | grep '\.sh$' || true)
+[[ -n "$SH_FILES" ]] && bash scripts/check_shellcheck.sh $SH_FILES
 ```
 
 ## Testing
@@ -101,6 +201,12 @@ SH_FILES=$(echo "$FILES" | grep '\.sh$')
 
 # Run specific test suite
 ./tests/php/phpstan/run.sh
+./tests/javascript/tests_exist/run.sh
+./tests/javascript/eslint_all/run.sh
+./tests/javascript/vitest/run.sh
+./tests/python/flake8/run.sh
+./tests/python/mypy/run.sh
+./tests/python/find_test/run.sh
 ```
 
 ## Requirements
@@ -108,8 +214,10 @@ SH_FILES=$(echo "$FILES" | grep '\.sh$')
 - Bash 4.0+
 - Git
 - jq
+- Node.js with npx (for JavaScript/TypeScript hooks)
+- Python 3, Flake8, Mypy, Pytest (for Python hooks)
 - PHP 8.1+ with Composer (for PHP hooks)
-- Docker (optional)
+- Docker (optional, for Docker-based hooks)
 - ShellCheck (for shell validation)
 
 ## License