diff --git a/cmd/vibes/lsp.go b/cmd/vibes/lsp.go
index 128cb4f..e259ebf 100644
--- a/cmd/vibes/lsp.go
+++ b/cmd/vibes/lsp.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"os"
 	"regexp"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -345,15 +346,11 @@ func completionItems() []map[string]any {
 }
 
 func classifyWord(word string) string {
-	for _, keyword := range lspKeywords {
-		if keyword == word {
-			return "keyword"
-		}
+	if slices.Contains(lspKeywords, word) {
+		return "keyword"
 	}
-	for _, builtin := range lspBuiltins {
-		if builtin == word {
-			return "builtin"
-		}
+	if slices.Contains(lspBuiltins, word) {
+		return "builtin"
 	}
 	return "symbol"
 }
@@ -372,10 +369,7 @@ func wordAtPosition(source string, line, character int) string {
 	if character < 0 {
 		character = 0
 	}
-	character = utf16OffsetToRuneIndex(lineText, character)
-	if character > len(runes) {
-		character = len(runes)
-	}
+	character = min(utf16OffsetToRuneIndex(lineText, character), len(runes))
 
 	cursor := character
 	if cursor == len(runes) {
diff --git a/vibes/capability_contracts_cycles.go b/vibes/capability_contracts_cycles.go
index f8c5e4e..3c938d8 100644
--- a/vibes/capability_contracts_cycles.go
+++ b/vibes/capability_contracts_cycles.go
@@ -1,5 +1,7 @@
 package vibes
 
+import "slices"
+
 import "reflect"
 
 type capabilityCycleScanner struct {
@@ -34,10 +36,8 @@ func (s *capabilityCycleScanner) containsCycle(val Value) bool {
 			return true
 		}
 		s.visitingArrays[id] = struct{}{}
-		for _, item := range values {
-			if s.containsCycle(item) {
-				return true
-			}
+		if slices.ContainsFunc(values, s.containsCycle) {
+			return true
 		}
 		delete(s.visitingArrays, id)
 		s.seenArrays[id] = struct{}{}
diff --git a/vibes/execution_members_array_transforms.go b/vibes/execution_members_array_transforms.go
index 00a00f1..1ae0974 100644
--- a/vibes/execution_members_array_transforms.go
+++ b/vibes/execution_members_array_transforms.go
@@ -192,10 +192,7 @@ func arrayMemberTransforms(property string) (Value, error) {
 			}
 			chunks := make([]Value, 0, chunkCapacity)
 			for i := 0; i < len(arr); i += size {
-				end := i + size
-				if end > len(arr) {
-					end = len(arr)
-				}
+				end := min(i+size, len(arr))
 				part := make([]Value, end-i)
 				copy(part, arr[i:end])
 				chunks = append(chunks, NewArray(part))
diff --git a/vibes/execution_members_string_helpers.go b/vibes/execution_members_string_helpers.go
index ed938c3..a9ab2e1 100644
--- a/vibes/execution_members_string_helpers.go
+++ b/vibes/execution_members_string_helpers.go
@@ -198,7 +198,7 @@ func stringTemplateOption(kwargs map[string]Value) (bool, error) {
 
 func stringTemplateLookup(context Value, keyPath string) (Value, bool) {
 	current := context
-	for _, segment := range strings.Split(keyPath, ".") {
+	for segment := range strings.SplitSeq(keyPath, ".") {
 		if segment == "" {
 			return NewNil(), false
 		}