diff --git a/claudetool/bashkit/parsing.go b/claudetool/bashkit/parsing.go
new file mode 100644
index 0000000..2b17ae3
--- /dev/null
+++ b/claudetool/bashkit/parsing.go
@@ -0,0 +1,82 @@
+package bashkit
+
+import (
+	"fmt"
+	"strings"
+
+	"mvdan.cc/sh/v3/syntax"
+)
+
+// ExtractCommands parses a bash command and extracts individual command names that are
+// candidates for auto-installation.
+//
+// Returns only simple command names (no paths, no builtins, no variable assignments)
+// that could potentially be missing tools that need installation.
+//
+// Filtering logic:
+// - Excludes commands with paths (./script.sh, /usr/bin/tool, ../build.sh)
+// - Excludes shell builtins (echo, cd, test, [, etc.)
+// - Excludes variable assignments (FOO=bar)
+// - Deduplicates repeated command names
+//
+// Examples:
+//
+//	"ls -la && echo done" → ["ls"] (echo filtered as builtin)
+//	"./deploy.sh && curl api.com" → ["curl"] (./deploy.sh filtered as path)
+//	"yamllint config.yaml" → ["yamllint"] (candidate for installation)
+func ExtractCommands(command string) ([]string, error) {
+	r := strings.NewReader(command)
+	parser := syntax.NewParser()
+	file, err := parser.Parse(r, "")
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse bash command: %w", err)
+	}
+
+	var commands []string
+	seen := make(map[string]bool)
+
+	syntax.Walk(file, func(node syntax.Node) bool {
+		callExpr, ok := node.(*syntax.CallExpr)
+		if !ok || len(callExpr.Args) == 0 {
+			return true
+		}
+		cmdName := callExpr.Args[0].Lit()
+		if cmdName == "" {
+			return true
+		}
+		if strings.Contains(cmdName, "=") {
+			// variable assignment
+			return true
+		}
+		if strings.Contains(cmdName, "/") {
+			// commands with slashes are user-specified executables/scripts
+			return true
+		}
+		if isBuiltin(cmdName) {
+			return true
+		}
+		if !seen[cmdName] {
+			seen[cmdName] = true
+			commands = append(commands, cmdName)
+		}
+		return true
+	})
+
+	return commands, nil
+}
+
+// isBuiltin checks if a command is a shell built-in using the same logic as mvdan.cc/sh/v3/interp
+// This is copied from mvdan.cc/sh/v3/interp.isBuiltin since it's not exported
+// See https://github.com/mvdan/sh/issues/1164
+func isBuiltin(name string) bool {
+	switch name {
+	case "true", ":", "false", "exit", "set", "shift", "unset",
+		"echo", "printf", "break", "continue", "pwd", "cd",
+		"wait", "builtin", "trap", "type", "source", ".", "command",
+		"dirs", "pushd", "popd", "umask", "alias", "unalias",
+		"fg", "bg", "getopts", "eval", "test", "[", "exec",
+		"return", "read", "mapfile", "readarray", "shopt":
+		return true
+	}
+	return false
+}
diff --git a/claudetool/bashkit/parsing_test.go b/claudetool/bashkit/parsing_test.go
new file mode 100644
index 0000000..9a2b831
--- /dev/null
+++ b/claudetool/bashkit/parsing_test.go
@@ -0,0 +1,172 @@
+package bashkit
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestExtractCommands(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected []string
+	}{
+		{
+			name:     "simple command",
+			input:    "ls -la",
+			expected: []string{"ls"},
+		},
+		{
+			name:     "command with pipe",
+			input:    "ls -la | grep test",
+			expected: []string{"ls", "grep"},
+		},
+		{
+			name:     "command with logical and (builtin filtered)",
+			input:    "mkdir test && cd test",
+			expected: []string{"mkdir"}, // cd is builtin, filtered out
+		},
+		{
+			name:     "if statement with commands (builtin filtered)",
+			input:    "if [ -f file.txt ]; then cat file.txt; fi",
+			expected: []string{"cat"}, // [ is builtin, filtered out
+		},
+		{
+			name:     "variable assignment with command (builtin filtered)",
+			input:    "FOO=bar echo $FOO",
+			expected: []string{}, // echo is builtin, filtered out
+		},
+		{
+			name:     "script path filtered out (builtin also filtered)",
+			input:    "./script.sh && echo done",
+			expected: []string{}, // echo is builtin, filtered out
+		},
+		{
+			name:     "multiline script (builtin filtered)",
+			input:    "python3 -c 'print(\"hello\")'\necho 'done'",
+			expected: []string{"python3"}, // echo is builtin, filtered out
+		},
+		{
+			name:     "complex command chain (builtin filtered)",
+			input:    "curl -s https://api.github.com | jq '.name' && echo 'done'",
+			expected: []string{"curl", "jq"}, // echo is builtin, filtered out
+		},
+		{
+			name:     "builtins filtered out",
+			input:    "echo 'test' && true && ls",
+			expected: []string{"ls"},
+		},
+		{
+			name:     "empty command",
+			input:    "",
+			expected: []string{},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result, err := ExtractCommands(tt.input)
+			if err != nil {
+				t.Fatalf("ExtractCommands() error = %v", err)
+			}
+			// Handle empty slice comparison
+			if len(result) == 0 && len(tt.expected) == 0 {
+				return // Both are empty, test passes
+			}
+			if !reflect.DeepEqual(result, tt.expected) {
+				t.Errorf("ExtractCommands() = %v, want %v", result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestIsBuiltin(t *testing.T) {
+	tests := []struct {
+		name     string
+		command  string
+		expected bool
+	}{
+		{"echo is builtin", "echo", true},
+		{"cd is builtin", "cd", true},
+		{"test is builtin", "test", true},
+		{"[ is builtin", "[", true},
+		{"ls is not builtin", "ls", false},
+		{"curl is not builtin", "curl", false},
+		{"python3 is not builtin", "python3", false},
+		{"nonexistent is not builtin", "nonexistent", false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := isBuiltin(tt.command)
+			if result != tt.expected {
+				t.Errorf("IsBuiltin(%q) = %v, want %v", tt.command, result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestExtractCommandsErrorHandling(t *testing.T) {
+	// Test with syntactically invalid bash
+	invalidBash := "if [ incomplete"
+	_, err := ExtractCommands(invalidBash)
+	if err == nil {
+		t.Error("ExtractCommands() should return error for invalid bash syntax")
+	}
+}
+
+func TestExtractCommandsPathFiltering(t *testing.T) {
+	// Test that commands with paths are properly filtered out during extraction
+	tests := []struct {
+		name     string
+		input    string
+		expected []string
+	}{
+		{
+			name:     "relative script path filtered (builtin also filtered)",
+			input:    "./my-script.sh && echo 'done'",
+			expected: []string{}, // echo is builtin, filtered out
+		},
+		{
+			name:     "absolute path filtered",
+			input:    "/usr/bin/custom-tool --help",
+			expected: []string{},
+		},
+		{
+			name:     "parent directory script filtered",
+			input:    "../scripts/build.sh",
+			expected: []string{},
+		},
+		{
+			name:     "home directory path filtered",
+			input:    "~/.local/bin/tool",
+			expected: []string{},
+		},
+		{
+			name:     "simple commands without paths included",
+			input:    "curl https://example.com | jq '.name'",
+			expected: []string{"curl", "jq"},
+		},
+		{
+			name:     "mixed paths and simple commands",
+			input:    "./setup.sh && python3 -c 'print(\"hello\")' && /bin/ls",
+			expected: []string{"python3"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result, err := ExtractCommands(tt.input)
+			if err != nil {
+				t.Fatalf("ExtractCommands() error = %v", err)
+			}
+			// Handle empty slice comparison
+			if len(result) == 0 && len(tt.expected) == 0 {
+				return // Both are empty, test passes
+			}
+			if !reflect.DeepEqual(result, tt.expected) {
+				t.Errorf("ExtractCommands() = %v, want %v", result, tt.expected)
+			}
+		})
+	}
+}