diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f9b3f93
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,290 @@
+# Makefile for nvim-shellspec
+# Provides help, linting, testing, and release functionality
+
+# Colors for output
+RED := \033[0;31m
+GREEN := \033[0;32m
+YELLOW := \033[1;33m
+BLUE := \033[0;34m
+NC := \033[0m # No Color
+
+# Version files
+VERSION_LUA := lua/shellspec/init.lua
+VERSION_VIM := plugin/shellspec.vim
+VERSION_BIN := bin/shellspec-format
+
+# Commands
+MAKE := make
+PRE_COMMIT := pre-commit
+TEST_RUNNER := ./tests/run_tests.sh
+
+# Default target
+.PHONY: help
+help: ## Display this help message
+	@echo "$(BLUE)nvim-shellspec Makefile$(NC)"
+	@echo "$(BLUE)==========================================$(NC)"
+	@echo ""
+	@echo "$(GREEN)Available targets:$(NC)"
+	@echo ""
+	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "  $(YELLOW)%-20s$(NC) %s\n", $$1, $$2}' $(MAKEFILE_LIST)
+	@echo ""
+	@echo "$(GREEN)Current versions:$(NC)"
+	@$(MAKE) --no-print-directory version-check
+	@echo ""
+	@echo "$(GREEN)Usage examples:$(NC)"
+	@echo "  $(YELLOW)make test$(NC)          # Run all tests"
+	@echo "  $(YELLOW)make lint$(NC)          # Run all linters"
+	@echo "  $(YELLOW)make release-patch$(NC) # Bump patch version and create tag"
+	@echo ""
+
+.PHONY: check
+check: ## Quick health check (verify tools and version consistency)
+	@echo "$(BLUE)Running health check...$(NC)"
+	@echo ""
+	@echo "$(GREEN)Checking required tools:$(NC)"
+	@which pre-commit >/dev/null 2>&1 && echo "  ✓ pre-commit found" || echo "  $(RED)✗ pre-commit not found$(NC)"
+	@which git >/dev/null 2>&1 && echo "  ✓ git found" || echo "  $(RED)✗ git not found$(NC)"
+	@which bash >/dev/null 2>&1 && echo "  ✓ bash found" || echo "  $(RED)✗ bash not found$(NC)"
+	@test -f $(TEST_RUNNER) && echo "  ✓ test runner found" || echo "  $(RED)✗ test runner not found$(NC)"
+	@echo ""
+	@echo "$(GREEN)Version consistency:$(NC)"
+	@$(MAKE) --no-print-directory version-check
+	@echo ""
+
+.PHONY: version
+version: version-check ## Display current versions
+
+.PHONY: version-check
+version-check: ## Check version consistency across files
+	@echo "$(GREEN)Version information:$(NC)"
+	@lua_version=$$(grep '_VERSION = ' $(VERSION_LUA) | sed 's/.*"\(.*\)".*/\1/'); \
+	vim_version=$$(grep "g:shellspec_version = " $(VERSION_VIM) | sed "s/.*'\(.*\)'.*/\1/"); \
+	bin_version=$$(grep 'echo "shellspec-format ' $(VERSION_BIN) | sed 's/.*shellspec-format \([0-9.]*\).*/\1/'); \
+	echo "  Lua module:      $$lua_version"; \
+	echo "  VimScript:       $$vim_version"; \
+	echo "  Binary script:   $$bin_version"; \
+	if [ "$$lua_version" = "$$vim_version" ] && [ "$$vim_version" = "$$bin_version" ]; then \
+		echo "  $(GREEN)✓ All versions match$(NC)"; \
+	else \
+		echo "  $(RED)✗ Version mismatch detected$(NC)"; \
+		exit 1; \
+	fi
+
+# Linting targets
+.PHONY: lint
+lint: ## Run all linters
+	@echo "$(BLUE)Running all linters...$(NC)"
+	$(PRE_COMMIT) run --all-files
+
+.PHONY: lint-fix
+lint-fix: format ## Run linters with auto-fix (alias for format)
+
+.PHONY: format
+format: ## Format all code (auto-fix where possible)
+	@echo "$(BLUE)Formatting all code...$(NC)"
+	$(PRE_COMMIT) run --all-files
+
+.PHONY: lint-lua
+lint-lua: ## Format Lua code with StyLua
+	@echo "$(BLUE)Formatting Lua code...$(NC)"
+	$(PRE_COMMIT) run stylua-github --all-files
+
+.PHONY: lint-shell
+lint-shell: ## Lint shell scripts with ShellCheck and format with shfmt
+	@echo "$(BLUE)Linting shell scripts...$(NC)"
+	$(PRE_COMMIT) run shellcheck --all-files
+	$(PRE_COMMIT) run shfmt --all-files
+
+.PHONY: lint-markdown
+lint-markdown: ## Lint and format Markdown files
+	@echo "$(BLUE)Linting Markdown files...$(NC)"
+	$(PRE_COMMIT) run markdownlint --all-files
+
+.PHONY: lint-yaml
+lint-yaml: ## Lint YAML files
+	@echo "$(BLUE)Linting YAML files...$(NC)"
+	$(PRE_COMMIT) run yamllint --all-files
+
+# Testing targets
+.PHONY: test
+test: ## Run complete test suite
+	@echo "$(BLUE)Running complete test suite...$(NC)"
+	$(TEST_RUNNER)
+
+.PHONY: test-unit
+test-unit: ## Run only Lua unit tests
+	@echo "$(BLUE)Running unit tests...$(NC)"
+	cd tests && timeout 30 nvim --headless -u NONE -c "set rtp+=.." -c "luafile format_spec.lua" -c "quit"
+
+.PHONY: test-integration
+test-integration: ## Run integration tests
+	@echo "$(BLUE)Running integration tests...$(NC)"
+	cd tests && timeout 30 ./integration_test.sh
+
+.PHONY: test-golden
+test-golden: ## Run golden master tests
+	@echo "$(BLUE)Running golden master tests...$(NC)"
+	cd tests && timeout 30 ./golden_master_test.sh
+
+.PHONY: test-bin
+test-bin: ## Run standalone formatter tests
+	@echo "$(BLUE)Running standalone formatter tests...$(NC)"
+	cd tests && ./bin_format_spec.sh
+
+# Release targets
+.PHONY: release
+release: ## Interactive release (prompts for version type)
+	@echo "$(BLUE)Interactive Release$(NC)"
+	@echo ""
+	@echo "Select release type:"
+	@echo "  1) $(GREEN)patch$(NC) (2.0.0 → 2.0.1) - Bug fixes"
+	@echo "  2) $(YELLOW)minor$(NC) (2.0.0 → 2.1.0) - New features"
+	@echo "  3) $(RED)major$(NC) (2.0.0 → 3.0.0) - Breaking changes"
+	@echo ""
+	@read -p "Enter choice (1-3): " choice; \
+	case $$choice in \
+		1) $(MAKE) release-patch ;; \
+		2) $(MAKE) release-minor ;; \
+		3) $(MAKE) release-major ;; \
+		*) echo "$(RED)Invalid choice$(NC)"; exit 1 ;; \
+	esac
+
+.PHONY: release-patch
+release-patch: ## Bump patch version (X.Y.Z → X.Y.Z+1)
+	@$(MAKE) --no-print-directory _release TYPE=patch
+
+.PHONY: release-minor
+release-minor: ## Bump minor version (X.Y.Z → X.Y+1.0)
+	@$(MAKE) --no-print-directory _release TYPE=minor
+
+.PHONY: release-major
+release-major: ## Bump major version (X.Y.Z → X+1.0.0)
+	@$(MAKE) --no-print-directory _release TYPE=major
+
+.PHONY: _release
+_release: ## Internal release target (use release-* targets instead)
+	@if [ "$(TYPE)" = "" ]; then echo "$(RED)Error: TYPE not specified$(NC)"; exit 1; fi
+	@echo "$(BLUE)Starting $(TYPE) release...$(NC)"
+	@echo ""
+
+	# Check git status
+	@echo "$(GREEN)Checking git status...$(NC)"
+	@if [ -n "$$(git status --porcelain)" ]; then \
+		echo "$(RED)Error: Working directory not clean$(NC)"; \
+		git status --short; \
+		exit 1; \
+	fi
+	@echo "  ✓ Working directory is clean"
+
+	# Check version consistency
+	@echo ""
+	@echo "$(GREEN)Checking version consistency...$(NC)"
+	@$(MAKE) --no-print-directory version-check
+
+	# Run tests
+	@echo ""
+	@echo "$(GREEN)Running tests...$(NC)"
+	@$(MAKE) --no-print-directory test
+
+	# Run linters
+	@echo ""
+	@echo "$(GREEN)Running linters...$(NC)"
+	@$(MAKE) --no-print-directory lint
+
+	# Calculate new version
+	@echo ""
+	@echo "$(GREEN)Calculating new version...$(NC)"
+	@current_version=$$(grep '_VERSION = ' $(VERSION_LUA) | sed 's/.*"\(.*\)".*/\1/'); \
+	echo "  Current version: $$current_version"; \
+	new_version=$$(echo "$$current_version" | awk -F. -v type=$(TYPE) '{ \
+		if (type == "major") printf "%d.0.0", $$1+1; \
+		else if (type == "minor") printf "%d.%d.0", $$1, $$2+1; \
+		else if (type == "patch") printf "%d.%d.%d", $$1, $$2, $$3+1; \
+	}'); \
+	echo "  New version:     $$new_version"; \
+	echo ""; \
+	read -p "Continue with release? (y/N): " confirm; \
+	if [ "$$confirm" != "y" ] && [ "$$confirm" != "Y" ]; then \
+		echo "$(YELLOW)Release cancelled$(NC)"; \
+		exit 1; \
+	fi; \
+	echo ""; \
+	echo "$(GREEN)Updating version in files...$(NC)"; \
+	sed -i.bak "s/M._VERSION = \".*\"/M._VERSION = \"$$new_version\"/" $(VERSION_LUA) && rm $(VERSION_LUA).bak; \
+	sed -i.bak "s/let g:shellspec_version = '.*'/let g:shellspec_version = '$$new_version'/" $(VERSION_VIM) && rm $(VERSION_VIM).bak; \
+	sed -i.bak "s/shellspec-format [0-9.]*/shellspec-format $$new_version/" $(VERSION_BIN) && rm $(VERSION_BIN).bak; \
+	echo "  ✓ Updated $(VERSION_LUA)"; \
+	echo "  ✓ Updated $(VERSION_VIM)"; \
+	echo "  ✓ Updated $(VERSION_BIN)"; \
+	echo ""; \
+	echo "$(GREEN)Creating git commit...$(NC)"; \
+	git add $(VERSION_LUA) $(VERSION_VIM) $(VERSION_BIN); \
+	git commit -m "chore: bump version to $$new_version"; \
+	echo "  ✓ Created commit"; \
+	echo ""; \
+	echo "$(GREEN)Creating git tag...$(NC)"; \
+	git tag -a "v$$new_version" -m "Release version $$new_version"; \
+	echo "  ✓ Created tag v$$new_version"; \
+	echo ""; \
+	echo "$(GREEN)$(TYPE) release completed successfully!$(NC)"; \
+	echo ""; \
+	echo "$(BLUE)Next steps:$(NC)"; \
+	echo "  1. Review the changes: $(YELLOW)git show$(NC)"; \
+	echo "  2. Push the release:   $(YELLOW)git push origin main --tags$(NC)"; \
+	echo "  3. Create GitHub release from tag v$$new_version"; \
+	echo ""
+
+# Utility targets
+.PHONY: clean
+clean: ## Remove temporary files and test artifacts
+	@echo "$(BLUE)Cleaning temporary files...$(NC)"
+	find . -name "*.bak" -delete
+	find . -name "*.tmp" -delete
+	find /tmp -name "*shellspec*" -delete 2>/dev/null || true
+	find /var/folders -name "*shellspec*" -delete 2>/dev/null || true
+	@echo "  ✓ Cleaned temporary files"
+
+.PHONY: install
+install: ## Install pre-commit hooks
+	@echo "$(BLUE)Installing pre-commit hooks...$(NC)"
+	$(PRE_COMMIT) install
+	@echo "  ✓ Pre-commit hooks installed"
+
+# Development convenience targets
+.PHONY: dev-setup
+dev-setup: install ## Set up development environment
+	@echo "$(BLUE)Setting up development environment...$(NC)"
+	@$(MAKE) --no-print-directory check
+	@echo ""
+	@echo "$(GREEN)Development environment ready!$(NC)"
+
+.PHONY: ci
+ci: check test lint ## Run CI pipeline (check, test, lint)
+	@echo ""
+	@echo "$(GREEN)CI pipeline completed successfully!$(NC)"
+
+# Debug targets
+.PHONY: debug
+debug: ## Show debug information
+	@echo "$(BLUE)Debug Information$(NC)"
+	@echo "$(BLUE)==================$(NC)"
+	@echo ""
+	@echo "$(GREEN)Environment:$(NC)"
+	@echo "  PWD: $(PWD)"
+	@echo "  SHELL: $(SHELL)"
+	@echo "  MAKE: $(MAKE)"
+	@echo ""
+	@echo "$(GREEN)Git status:$(NC)"
+	@git status --short || echo "  Not in git repository"
+	@echo ""
+	@echo "$(GREEN)Tools:$(NC)"
+	@echo "  pre-commit: $$(which pre-commit || echo 'not found')"
+	@echo "  git: $$(which git || echo 'not found')"
+	@echo "  nvim: $$(which nvim || echo 'not found')"
+	@echo ""
+	@$(MAKE) --no-print-directory version-check
+
+# Ensure all targets are PHONY (no file dependencies)
+.PHONY: _release help check version version-check lint lint-fix format lint-lua lint-shell lint-markdown lint-yaml
+.PHONY: test test-unit test-integration test-golden test-bin release release-patch release-minor release-major
+.PHONY: clean install dev-setup ci debug
diff --git a/bin/shellspec-format b/bin/shellspec-format
index 52b29e6..70762d2 100755
--- a/bin/shellspec-format
+++ b/bin/shellspec-format
@@ -1,46 +1,305 @@
 #!/bin/bash
-# Standalone ShellSpec DSL formatter
+# Enhanced ShellSpec DSL formatter with HEREDOC and comment support
+# Matches functionality from the nvim-shellspec plugin
 
+set -e
+
+# Default configuration
+INDENT_SIZE=2
+USE_SPACES=1
+INDENT_COMMENTS=1
+DEBUG=0
+
+# State constants
+STATE_NORMAL=1
+STATE_HEREDOC=2
+
+# Usage information
+usage() {
+  cat <<'EOF'
+Usage: shellspec-format [OPTIONS] [FILE...]
+
+Enhanced ShellSpec DSL formatter with HEREDOC preservation and smart comment indentation.
+
+OPTIONS:
+  -h, --help              Show this help message
+  -s, --indent-size SIZE  Set indentation size (default: 2)
+  -t, --tabs              Use tabs instead of spaces
+  -n, --no-comment-indent Don't indent comments
+  -d, --debug             Enable debug output
+  -v, --version           Show version information
+
+If no files are specified, reads from stdin and writes to stdout.
+If files are specified, formats them in place.
+
+EXAMPLES:
+  shellspec-format < input.spec.sh > output.spec.sh
+  shellspec-format file1.spec.sh file2.spec.sh
+  cat file.spec.sh | shellspec-format --indent-size 4 --tabs
+
+EOF
+}
+
+version() {
+  echo "shellspec-format 2.0.0"
+  echo "Part of nvim-shellspec plugin"
+}
+
+# Debug logging
+debug_log() {
+  if [[ $DEBUG -eq 1 ]]; then
+    echo "DEBUG: $*" >&2
+  fi
+}
+
+# Detect HEREDOC start and return delimiter
+detect_heredoc_start() {
+  local line="$1"
+  local trimmed
+  trimmed=$(echo "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+
+  # Check for various HEREDOC patterns
+  local patterns=(
+    "<<([A-Z_][A-Z0-9_]*)"
+    "<<'([^']*)'"
+    "<<\"([^\"]*)\""
+    "<<-([A-Z_][A-Z0-9_]*)"
+  )
+
+  for pattern in "${patterns[@]}"; do
+    if [[ $trimmed =~ $pattern ]]; then
+      echo "${BASH_REMATCH[1]}"
+      return 0
+    fi
+  done
+
+  return 1
+}
+
+# Check if line ends a HEREDOC
+is_heredoc_end() {
+  local line="$1"
+  local delimiter="$2"
+  local trimmed
+  trimmed=$(echo "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+
+  [[ -n "$delimiter" && "$trimmed" == "$delimiter" ]]
+}
+
+# Check if line is a ShellSpec block keyword
+is_block_keyword() {
+  local line="$1"
+  local trimmed
+  trimmed=$(echo "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+
+  debug_log "Checking if block keyword: '$trimmed'"
+
+  # Standard block keywords
+  if [[ $trimmed =~ ^(Describe|Context|ExampleGroup|It|Specify|Example)[[:space:]] ]]; then
+    debug_log "Matched standard block keyword: '$trimmed'"
+    return 0
+  fi
+
+  # Prefixed block keywords (x for skip, f for focus)
+  if [[ $trimmed =~ ^[xf](Describe|Context|ExampleGroup|It|Specify|Example)[[:space:]] ]]; then
+    debug_log "Matched prefixed block keyword: '$trimmed'"
+    return 0
+  fi
+
+  # Data and Parameters blocks
+  if [[ $trimmed =~ ^(Data|Parameters)[[:space:]]*$ ]]; then
+    debug_log "Matched data/parameters block: '$trimmed'"
+    return 0
+  fi
+
+  # Hook keywords that create blocks (can be standalone)
+  if [[ $trimmed =~ ^(BeforeEach|AfterEach|BeforeAll|AfterAll|Before|After)[[:space:]]*$ ]]; then
+    debug_log "Matched hook keyword: '$trimmed'"
+    return 0
+  fi
+
+  # Additional hook keywords (can be standalone)
+  if [[ $trimmed =~ ^(BeforeCall|AfterCall|BeforeRun|AfterRun)[[:space:]]*$ ]]; then
+    debug_log "Matched additional hook keyword: '$trimmed'"
+    return 0
+  fi
+
+  debug_log "Not a block keyword: '$trimmed'"
+  return 1
+}
+
+# Check if line is an End keyword
+is_end_keyword() {
+  local line="$1"
+  local trimmed
+  trimmed=$(echo "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+
+  [[ $trimmed =~ ^End[[:space:]]*$ ]]
+}
+
+# Check if line is a comment
+is_comment() {
+  local line="$1"
+  local trimmed
+  trimmed=$(echo "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+
+  [[ $trimmed =~ ^# ]]
+}
+
+# Generate indentation string
+make_indent() {
+  local level="$1"
+  local total_indent=$((level * INDENT_SIZE))
+
+  if [[ $USE_SPACES -eq 1 ]]; then
+    printf "%*s" $total_indent ""
+  else
+    printf "%*s" $level "" | tr ' ' '\t'
+  fi
+}
+
+# Main formatting function
 format_shellspec() {
-  local indent=0
+  local indent_level=0
+  local state=$STATE_NORMAL
+  local heredoc_delimiter=""
   local line
 
   while IFS= read -r line; do
     local trimmed
     trimmed=$(echo "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
 
-    # Skip empty lines and comments
-    if [[ -z "$trimmed" || "$trimmed" =~ ^# ]]; then
+    # Handle empty lines
+    if [[ -z "$trimmed" ]]; then
       echo "$line"
       continue
     fi
 
-    # Decrease indent for End
-    if [[ "$trimmed" =~ ^End[[:space:]]*$ ]]; then
-      ((indent > 0)) && ((indent--))
-    fi
+    # State machine for HEREDOC handling
+    case $state in
+    "$STATE_NORMAL")
+      # Check for HEREDOC start
+      if heredoc_delimiter=$(detect_heredoc_start "$line"); then
+        state=$STATE_HEREDOC
+        debug_log "HEREDOC start detected: '$heredoc_delimiter'"
+        # Apply current indentation to HEREDOC start line
+        printf "%s%s\n" "$(make_indent $indent_level)" "$trimmed"
+        continue
+      fi
 
-    # Apply indentation
-    printf "%*s%s\n" $((indent * 2)) "" "$trimmed"
+      # Handle End keyword (decrease indent first)
+      if is_end_keyword "$line"; then
+        ((indent_level > 0)) && ((indent_level--))
+        printf "%s%s\n" "$(make_indent $indent_level)" "$trimmed"
+        continue
+      fi
 
-    # Increase indent after block keywords
-    if [[ "$trimmed" =~ ^(Describe|Context|ExampleGroup|It|Specify|Example) ]] ||
-      [[ "$trimmed" =~ ^[xf](Describe|Context|ExampleGroup|It|Specify|Example) ]] ||
-      [[ "$trimmed" =~ ^(Data|Parameters)[[:space:]]*$ ]]; then
-      ((indent++))
-    fi
+      # Handle comments
+      if is_comment "$line"; then
+        if [[ $INDENT_COMMENTS -eq 1 ]]; then
+          printf "%s%s\n" "$(make_indent $indent_level)" "$trimmed"
+        else
+          # Preserve original comment formatting
+          echo "$line"
+        fi
+        continue
+      fi
+
+      # Handle non-comment lines (ShellSpec commands, etc.)
+      printf "%s%s\n" "$(make_indent $indent_level)" "$trimmed"
+
+      # Increase indent after block keywords
+      if is_block_keyword "$line"; then
+        ((indent_level++))
+        debug_log "Block keyword detected: '$trimmed', new indent: $indent_level"
+      fi
+      ;;
+
+    "$STATE_HEREDOC")
+      # Check for HEREDOC end
+      if is_heredoc_end "$line" "$heredoc_delimiter"; then
+        state=$STATE_NORMAL
+        debug_log "HEREDOC end detected: '$heredoc_delimiter'"
+        # Apply current indentation to HEREDOC end line
+        printf "%s%s\n" "$(make_indent $indent_level)" "$trimmed"
+        heredoc_delimiter=""
+      else
+        # Preserve original indentation within HEREDOC
+        echo "$line"
+      fi
+      ;;
+    esac
   done
 }
 
+# Parse command line options
+while [[ $# -gt 0 ]]; do
+  case $1 in
+  -h | --help)
+    usage
+    exit 0
+    ;;
+  -v | --version)
+    version
+    exit 0
+    ;;
+  -s | --indent-size)
+    INDENT_SIZE="$2"
+    if ! [[ $INDENT_SIZE =~ ^[0-9]+$ ]] || [[ $INDENT_SIZE -lt 1 ]]; then
+      echo "Error: indent-size must be a positive integer" >&2
+      exit 1
+    fi
+    shift 2
+    ;;
+  -t | --tabs)
+    USE_SPACES=0
+    shift
+    ;;
+  -n | --no-comment-indent)
+    INDENT_COMMENTS=0
+    shift
+    ;;
+  -d | --debug)
+    DEBUG=1
+    shift
+    ;;
+  --)
+    shift
+    break
+    ;;
+  -*)
+    echo "Error: Unknown option $1" >&2
+    echo "Use --help for usage information" >&2
+    exit 1
+    ;;
+  *)
+    break
+    ;;
+  esac
+done
+
 # Main execution
 if [[ $# -eq 0 ]]; then
+  # Read from stdin, write to stdout
+  debug_log "Reading from stdin"
   format_shellspec
 else
+  # Process files in place
   for file in "$@"; do
     if [[ -f "$file" ]]; then
-      format_shellspec <"$file" >"${file}.tmp" && mv "${file}.tmp" "$file"
+      debug_log "Processing file: $file"
+      temp_file=$(mktemp)
+      if format_shellspec <"$file" >"$temp_file"; then
+        mv "$temp_file" "$file"
+        debug_log "Successfully formatted: $file"
+      else
+        rm -f "$temp_file"
+        echo "Error: Failed to format $file" >&2
+        exit 1
+      fi
     else
       echo "Error: File not found: $file" >&2
+      exit 1
     fi
   done
 fi
diff --git a/plugin/shellspec.vim b/plugin/shellspec.vim
index 3f3e922..5f03140 100644
--- a/plugin/shellspec.vim
+++ b/plugin/shellspec.vim
@@ -8,6 +8,9 @@ if exists('g:loaded_shellspec')
 endif
 let g:loaded_shellspec = 1
 
+" Version information
+let g:shellspec_version = '2.0.0'
+
 " Detect Neovim and use appropriate implementation
 if has('nvim-0.7')
   " Use modern Neovim Lua implementation
diff --git a/tests/bin_format_spec.sh b/tests/bin_format_spec.sh
new file mode 100755
index 0000000..6b10de8
--- /dev/null
+++ b/tests/bin_format_spec.sh
@@ -0,0 +1,323 @@
+#!/bin/bash
+# Unit tests for bin/shellspec-format standalone formatter
+# Tests the CLI formatter against the same test cases used for Lua implementation
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Test counters
+TESTS_PASSED=0
+TESTS_FAILED=0
+
+# Get the script directory and project root
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+FORMATTER="$PROJECT_ROOT/bin/shellspec-format"
+
+# Helper functions
+print_test() {
+  echo -e "${YELLOW}[BIN-TEST]${NC} $1"
+  # Force flush
+  exec 1>&1
+}
+
+print_pass() {
+  echo -e "${GREEN}[PASS]${NC} $1"
+  ((TESTS_PASSED++))
+  # Force flush
+  exec 1>&1
+}
+
+print_fail() {
+  echo -e "${RED}[FAIL]${NC} $1"
+  ((TESTS_FAILED++))
+  # Force flush
+  exec 1>&1
+}
+
+print_summary() {
+  echo ""
+  echo "Standalone Formatter Test Results:"
+  echo "  Passed: $TESTS_PASSED"
+  echo "  Failed: $TESTS_FAILED"
+  echo "  Total:  $((TESTS_PASSED + TESTS_FAILED))"
+
+  if [ $TESTS_FAILED -gt 0 ]; then
+    echo -e "${RED}Some standalone formatter tests failed!${NC}"
+    exit 1
+  else
+    echo -e "${GREEN}All standalone formatter tests passed!${NC}"
+  fi
+}
+
+# Function to run a formatting test
+run_format_test() {
+  local test_name="$1"
+  local input_content="$2"
+  local expected_content="$3"
+
+  print_test "Testing $test_name"
+
+  # Create temporary files
+  local input_file
+  local expected_file
+  local actual_file
+  input_file=$(mktemp -t "bin_format_input_XXXXXX.spec.sh")
+  expected_file=$(mktemp -t "bin_format_expected_XXXXXX.spec.sh")
+  actual_file=$(mktemp -t "bin_format_actual_XXXXXX.spec.sh")
+
+  # Debug: Show what we're testing
+  if [[ -n "${DEBUG:-}" ]]; then
+    echo "  Input file: $input_file"
+    echo "  Expected file: $expected_file"
+    echo "  Actual file: $actual_file"
+  fi
+
+  # Write test data to files
+  printf "%s\n" "$input_content" >"$input_file"
+  printf "%s\n" "$expected_content" >"$expected_file"
+
+  # Format using the standalone formatter
+  if timeout 10 "$FORMATTER" <"$input_file" >"$actual_file" 2>/dev/null; then
+    # Compare with expected output
+    if diff -u "$expected_file" "$actual_file" >/dev/null; then
+      print_pass "$test_name formatting matches expected output"
+    else
+      print_fail "$test_name formatting does not match expected output"
+      echo "Expected:"
+      cat "$expected_file"
+      echo ""
+      echo "Actual:"
+      cat "$actual_file"
+      echo ""
+      echo "Diff:"
+      diff -u "$expected_file" "$actual_file" || true
+      echo ""
+    fi
+  else
+    print_fail "$test_name formatting command failed"
+  fi
+
+  # Clean up
+  rm -f "$input_file" "$expected_file" "$actual_file"
+}
+
+# Function to test CLI options
+test_cli_options() {
+  local test_name="$1"
+  local options="$2"
+  local input_content="$3"
+  local expected_content="$4"
+
+  print_test "Testing $test_name"
+
+  # Create temporary files
+  local input_file
+  local expected_file
+  local actual_file
+  input_file=$(mktemp -t "bin_format_cli_input_XXXXXX.spec.sh")
+  expected_file=$(mktemp -t "bin_format_cli_expected_XXXXXX.spec.sh")
+  actual_file=$(mktemp -t "bin_format_cli_actual_XXXXXX.spec.sh")
+
+  # Write test data to files
+  printf "%s\n" "$input_content" >"$input_file"
+  printf "%s\n" "$expected_content" >"$expected_file"
+
+  # Format using the standalone formatter with options
+  if timeout 10 bash -c "$FORMATTER $options < '$input_file' > '$actual_file'" 2>/dev/null; then
+    # Compare with expected output
+    if diff -u "$expected_file" "$actual_file" >/dev/null; then
+      print_pass "$test_name formatting with options matches expected output"
+    else
+      print_fail "$test_name formatting with options does not match expected output"
+      echo "Options: $options"
+      echo "Expected:"
+      cat "$expected_file"
+      echo ""
+      echo "Actual:"
+      cat "$actual_file"
+      echo ""
+      echo "Diff:"
+      diff -u "$expected_file" "$actual_file" || true
+      echo ""
+    fi
+  else
+    print_fail "$test_name formatting command with options failed"
+  fi
+
+  # Clean up
+  rm -f "$input_file" "$expected_file" "$actual_file"
+}
+
+echo "Running bin/shellspec-format standalone formatter tests..."
+echo "Project root: $PROJECT_ROOT"
+echo "Formatter: $FORMATTER"
+echo ""
+
+# Verify formatter exists and is executable
+if [[ ! -x "$FORMATTER" ]]; then
+  echo -e "${RED}Error: Formatter not found or not executable: $FORMATTER${NC}"
+  exit 1
+fi
+
+# Test 1: Basic block indentation (ported from format_spec.lua)
+input1='Describe "test"
+It "should work"
+End
+End'
+expected1='Describe "test"
+  It "should work"
+  End
+End'
+run_format_test "Basic block indentation" "$input1" "$expected1"
+
+# Test 2: Comment indentation (ported from format_spec.lua)
+input2='Describe "test"
+# Comment at Describe level
+It "should work"
+# Comment at It level
+When call echo "test"
+End
+End'
+expected2='Describe "test"
+  # Comment at Describe level
+  It "should work"
+    # Comment at It level
+    When call echo "test"
+  End
+End'
+run_format_test "Comment indentation" "$input2" "$expected2"
+
+# Test 3: HEREDOC preservation (ported from format_spec.lua)
+run_format_test \
+  "HEREDOC preservation" \
+  'Describe "test"
+It "handles heredoc"
+When call cat <<EOF
+  This should be preserved
+    Even nested
+EOF
+The output should include "test"
+End
+End' \
+  'Describe "test"
+  It "handles heredoc"
+    When call cat <<EOF
+  This should be preserved
+    Even nested
+    EOF
+    The output should include "test"
+  End
+End'
+
+# Test 4: Nested contexts (ported from format_spec.lua)
+run_format_test \
+  "Nested contexts" \
+  'Describe "outer"
+Context "when something"
+It "should work"
+When call echo "test"
+The output should equal "test"
+End
+End
+End' \
+  'Describe "outer"
+  Context "when something"
+    It "should work"
+      When call echo "test"
+      The output should equal "test"
+    End
+  End
+End'
+
+# Test 5: Hook keywords (ported from format_spec.lua)
+run_format_test \
+  "Hook keywords" \
+  'Describe "test"
+BeforeEach
+setup_test
+End
+It "works"
+When call test_function
+End
+End' \
+  'Describe "test"
+  BeforeEach
+    setup_test
+  End
+  It "works"
+    When call test_function
+  End
+End'
+
+# CLI-specific tests
+
+# Test 6: Custom indent size
+test_cli_options \
+  "Custom indent size (4 spaces)" \
+  "--indent-size 4" \
+  'Describe "test"
+It "should work"
+End
+End' \
+  'Describe "test"
+    It "should work"
+    End
+End'
+
+# Test 7: Tab indentation
+input7='Describe "test"
+It "should work"
+End
+End'
+expected7='Describe "test"'$'\n\t''It "should work"'$'\n\t''End'$'\n''End'
+test_cli_options "Tab indentation" "--tabs" "$input7" "$expected7"
+
+# Test 8: No comment indentation
+test_cli_options \
+  "No comment indentation" \
+  "--no-comment-indent" \
+  'Describe "test"
+# Top level comment
+It "should work"
+# Nested comment
+End
+End' \
+  'Describe "test"
+# Top level comment
+  It "should work"
+# Nested comment
+  End
+End'
+
+# Test 9: Complex combination - tabs with custom indent size
+input9='Describe "test"
+Context "nested"
+It "should work"
+End
+End
+End'
+expected9='Describe "test"'$'\n\t''Context "nested"'$'\n\t\t''It "should work"'$'\n\t\t''End'$'\n\t''End'$'\n''End'
+test_cli_options "Tabs with custom indent size" "--tabs --indent-size 1" "$input9" "$expected9"
+
+# Test error handling
+print_test "Testing error handling - invalid indent size"
+if timeout 5 echo 'test' | "$FORMATTER" --indent-size 0 >/dev/null 2>&1; then
+  print_fail "Should have failed with invalid indent size"
+else
+  print_pass "Correctly rejected invalid indent size"
+fi
+
+print_test "Testing error handling - unknown option"
+if timeout 5 echo 'test' | "$FORMATTER" --unknown-option >/dev/null 2>&1; then
+  print_fail "Should have failed with unknown option"
+else
+  print_pass "Correctly rejected unknown option"
+fi
+
+print_summary
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index facc4f6..7f02fe0 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -15,6 +15,7 @@ NC='\033[0m' # No Color
 UNIT_PASSED=false
 INTEGRATION_PASSED=false
 GOLDEN_PASSED=false
+BIN_FORMAT_PASSED=false
 
 # Get the script directory and project root
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
@@ -110,6 +111,9 @@ echo ""
 echo -e "${BLUE}----------------------------------------${NC}"
 echo ""
 
+# Run bin formatter tests
+run_test_suite "Standalone Formatter Tests" "script" "./tests/bin_format_spec.sh" BIN_FORMAT_PASSED
+
 # Summary
 echo -e "${BLUE}========================================${NC}"
 echo -e "${BLUE} Test Results Summary                   ${NC}"
@@ -134,10 +138,16 @@ else
   echo -e "${RED}✗ Golden Master Tests: FAILED${NC}"
 fi
 
+if [ "$BIN_FORMAT_PASSED" = true ]; then
+  echo -e "${GREEN}✓ Standalone Formatter Tests: PASSED${NC}"
+else
+  echo -e "${RED}✗ Standalone Formatter Tests: FAILED${NC}"
+fi
+
 echo ""
 
 # Overall result
-if [ "$UNIT_PASSED" = true ] && [ "$INTEGRATION_PASSED" = true ] && [ "$GOLDEN_PASSED" = true ]; then
+if [ "$UNIT_PASSED" = true ] && [ "$INTEGRATION_PASSED" = true ] && [ "$GOLDEN_PASSED" = true ] && [ "$BIN_FORMAT_PASSED" = true ]; then
   echo -e "${GREEN}🎉 ALL TESTS COMPLETED SUCCESSFULLY! 🎉${NC}"
   echo ""
   echo -e "${GREEN}The nvim-shellspec plugin is ready for use!${NC}"