diff --git a/fs/handlers.go b/fs/handlers.go
index 3056987..421e43d 100644
--- a/fs/handlers.go
+++ b/fs/handlers.go
@@ -567,10 +567,18 @@ func readAgentCfg(ctx HandlerCtx) ([]byte, error) {
 	fmt.Fprintf(&sb, "cwd=%s\n", ctx.Agent.Cwd())
 	fmt.Fprintf(&sb, "remote=%s\n", ctx.AgentLog.remote)
 	fmt.Fprintf(&sb, "maxTokens=%d\n", p.MaxTokens)
-	fmt.Fprintf(&sb, "temperature=%v\n", p.Temperature)
-	fmt.Fprintf(&sb, "topP=%v\n", p.TopP)
-	fmt.Fprintf(&sb, "topK=%v\n", p.TopK)
-	fmt.Fprintf(&sb, "stop=%v\n", p.Stop)
+	if p.Temperature != nil {
+		fmt.Fprintf(&sb, "temperature=%g\n", *p.Temperature)
+	}
+	if p.TopP != nil {
+		fmt.Fprintf(&sb, "topP=%g\n", *p.TopP)
+	}
+	if p.TopK != nil {
+		fmt.Fprintf(&sb, "topK=%d\n", *p.TopK)
+	}
+	if len(p.Stop) > 0 {
+		fmt.Fprintf(&sb, "stop=%s\n", strings.Join(p.Stop, ","))
+	}
 	return []byte(sb.String()), nil
 }