From ccde8288a42535f6aaffc5a79fa304f4b241582f Mon Sep 17 00:00:00 2001
From: Chris Scott <99081550+chriswritescode-dev@users.noreply.github.com>
Date: Sun, 11 Jan 2026 17:50:55 -0500
Subject: [PATCH] fix: race condition causing prompt.set undefined error

Fixes a race condition where onMount() was called before the prompt
ref was initialized, causing "undefined is not an object (evaluating
'prompt.set')" error when starting a new session from inside an
existing session.

Changed from onMount() to createEffect() with a prompt existence
check, matching the pattern used in session/index.tsx.

Fixes #7870
---
 packages/opencode/src/cli/cmd/tui/routes/home.tsx | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/opencode/src/cli/cmd/tui/routes/home.tsx b/packages/opencode/src/cli/cmd/tui/routes/home.tsx
index 2155ab94744..f28c9090e88 100644
--- a/packages/opencode/src/cli/cmd/tui/routes/home.tsx
+++ b/packages/opencode/src/cli/cmd/tui/routes/home.tsx
@@ -1,5 +1,5 @@
 import { Prompt, type PromptRef } from "@tui/component/prompt"
-import { createMemo, Match, onMount, Show, Switch } from "solid-js"
+import { createMemo, Match, createEffect, Show, Switch, onMount } from "solid-js"
 import { useTheme } from "@tui/context/theme"
 import { Logo } from "../component/logo"
 import { DidYouKnow, randomizeTip } from "../component/did-you-know"
@@ -76,9 +76,9 @@ export function Home() {
 
   let prompt: PromptRef
   const args = useArgs()
-  onMount(() => {
-    randomizeTip()
-    if (once) return
+  onMount(() => randomizeTip())
+  createEffect(() => {
+    if (once || !prompt) return
     if (route.initialPrompt) {
       prompt.set(route.initialPrompt)
       once = true