diff --git a/internal/complete/complete.go b/internal/complete/complete.go
index 8003987..9af8ed9 100644
--- a/internal/complete/complete.go
+++ b/internal/complete/complete.go
@@ -37,6 +37,7 @@ var globals = []string{
 	"Object.fromEntries",
 	"Array.isArray",
 	"Array.from",
+	"console.log",
 	"len",
 	"uniq",
 	"sort",
@@ -49,12 +50,13 @@ var globals = []string{
 	"reverse",
 	"keys",
 	"values",
+	"skip",
 }
 
 func Complete() bool {
 	compLine, ok := os.LookupEnv("COMP_LINE")
 
-	if ok && len(os.Args) == 3 {
+	if ok && len(os.Args) >= 3 {
 		doComplete(compLine, os.Args[2])
 		return true
 	}
@@ -65,6 +67,12 @@ func Complete() bool {
 		return true
 	}
 
+	compFish, ok := os.LookupEnv("COMP_FISH")
+	if ok {
+		doComplete(compFish, lastWord(compFish))
+		return true
+	}
+
 	return false
 }
 
@@ -108,11 +116,11 @@ func doComplete(compLine string, compWord string) {
 		isSecondArgIsFile = isFile(args[1])
 	}
 
-	if isSecondArgIsFile {
-		if globalsComplete(compWord) {
-			return
-		}
+	if globalsComplete(compWord) {
+		return
+	}
 
+	if isSecondArgIsFile {
 		file := args[1]
 
 		hasYamlExt, _ := regexp.MatchString(`(?i)\.ya?ml$`, file)
@@ -190,12 +198,25 @@ func codeComplete(input string, args []string, compWord string) {
 		prefix := dropTail(compWord)
 		var reply []string
 		for _, key := range array {
-			reply = append(reply, prefix+key.(string))
+			reply = append(reply, join(prefix, key.(string)))
 		}
 		compReply(filterReply(reply, compWord))
 	}
 }
 
+var alphaRe = regexp.MustCompile(`^\w+$`)
+
+func join(prefix, key string) string {
+	if alphaRe.MatchString(key) {
+		return prefix + "." + key
+	} else {
+		if prefix == "" {
+			return fmt.Sprintf(".[%q]", key)
+		}
+		return fmt.Sprintf("%s[%q]", prefix, key)
+	}
+}
+
 func filterArgs(args []string) []string {
 	filtered := make([]string, 0, len(args))
 	for _, arg := range args {
diff --git a/internal/complete/fish.go b/internal/complete/fish.go
new file mode 100644
index 0000000..a25a4b3
--- /dev/null
+++ b/internal/complete/fish.go
@@ -0,0 +1,6 @@
+package complete
+
+func Fish() string {
+	return `complete --command fx --arguments '(COMP_FISH=(commandline -cp) fx)'
+`
+}
diff --git a/internal/complete/prelude.go b/internal/complete/prelude.go
index a6960ef..a51adac 100644
--- a/internal/complete/prelude.go
+++ b/internal/complete/prelude.go
@@ -8,11 +8,7 @@ Object.prototype.__keys = function () {
   if (typeof this === 'string') return
   if (this instanceof String) return
   if (typeof this === 'object' && this !== null)
-    Object.keys(this)
-      .forEach(x => /^\w+$/.test(x) ?
-        __keys.add('.' + x) :
-        __keys.add('.[' + JSON.stringify(x) + ']')
-      )
+    Object.keys(this).forEach(x => __keys.add(x))
 }
 
 function apply(fn, ...args) {
diff --git a/internal/complete/utils.go b/internal/complete/utils.go
index 277ca0e..d27c38c 100644
--- a/internal/complete/utils.go
+++ b/internal/complete/utils.go
@@ -3,14 +3,11 @@ package complete
 import (
 	"fmt"
 	"os"
-	"regexp"
 	"strings"
 )
 
 func compReply(reply []string) {
-	for _, word := range reply {
-		fmt.Println(word)
-	}
+	fmt.Print(strings.Join(reply, "\n"))
 }
 
 func filterReply(reply []string, compWord string) []string {
@@ -31,10 +28,9 @@ func isFile(path string) bool {
 	return !info.IsDir()
 }
 
-var tailRe = regexp.MustCompile(`\.?\w*$`)
-
 func dropTail(s string) string {
-	return tailRe.ReplaceAllString(s, "")
+	parts := strings.Split(s, ".")
+	return strings.Join(parts[:len(parts)-1], ".")
 }
 
 func balanceBrackets(code string) string {
diff --git a/main.go b/main.go
index 437bcd4..b1b57d2 100644
--- a/main.go
+++ b/main.go
@@ -89,6 +89,8 @@ func main() {
 			fmt.Print(complete.Bash())
 		case "zsh":
 			fmt.Print(complete.Zsh())
+		case "fish":
+			fmt.Print(complete.Fish())
 		default:
 			fmt.Println("unknown shell type")
 		}
@@ -176,9 +178,14 @@ func main() {
 
 	lipgloss.SetColorProfile(termOutput.ColorProfile())
 
+	withMouse := tea.WithMouseCellMotion()
+	if _, ok := os.LookupEnv("FX_NO_MOUSE"); ok {
+		withMouse = tea.WithAltScreen()
+	}
+
 	p := tea.NewProgram(m,
 		tea.WithAltScreen(),
-		tea.WithMouseCellMotion(),
+		withMouse,
 		tea.WithOutput(os.Stderr),
 	)
 	_, err = p.Run()
@@ -422,7 +429,7 @@ func (m *model) handleYankKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		_ = clipboard.WriteAll(m.cursorPath())
 	case key.Matches(msg, yankKey):
 		_ = clipboard.WriteAll(m.cursorKey())
-	case key.Matches(msg, yankValue):
+	case key.Matches(msg, yankValueY, yankValueV):
 		_ = clipboard.WriteAll(m.cursorValue())
 	}
 	m.yank = false