From 56b340b5d58d98fdebb54973ba8dfeb67ba8c51a Mon Sep 17 00:00:00 2001
From: Bryce Ryan <46449943+BryceRyan@users.noreply.github.com>
Date: Mon, 9 Feb 2026 13:56:34 -0500
Subject: [PATCH] fix(opencode): ACP File write should create the file if it
 doesn't exist (#12854)

---
 packages/opencode/src/acp/agent.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/opencode/src/acp/agent.ts b/packages/opencode/src/acp/agent.ts
index f38731676..301bfe319 100644
--- a/packages/opencode/src/acp/agent.ts
+++ b/packages/opencode/src/acp/agent.ts
@@ -228,8 +228,8 @@ export namespace ACP {
                 const metadata = permission.metadata || {}
                 const filepath = typeof metadata["filepath"] === "string" ? metadata["filepath"] : ""
                 const diff = typeof metadata["diff"] === "string" ? metadata["diff"] : ""
-
-                const content = await Bun.file(filepath).text()
+                const file = Bun.file(filepath)
+                const content = await file.exists() ? await file.text() : ""
                 const newContent = getNewContent(content, diff)
 
                 if (newContent) {