From b0242224fde52e6a0ffbf7e8c6bb2740ba758720 Mon Sep 17 00:00:00 2001
From: LufyCZ <me@lufy.cz>
Date: Thu, 23 Apr 2026 10:58:44 +0000
Subject: [PATCH] fix(opencode): handle unsupported import formats

---
 packages/opencode/src/cli/cmd/import.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/opencode/src/cli/cmd/import.ts b/packages/opencode/src/cli/cmd/import.ts
index 309ec6d95096..06b4732a2af1 100644
--- a/packages/opencode/src/cli/cmd/import.ts
+++ b/packages/opencode/src/cli/cmd/import.ts
@@ -140,9 +140,16 @@ export const ImportCommand = cmd({
 
         exportData = transformed
       } else {
+        const fileExists = await Filesystem.exists(args.file)
+        if (!fileExists) {
+          process.stdout.write(`File not found: ${args.file}`)
+          process.stdout.write(EOL)
+          return
+        }
+
         exportData = await Filesystem.readJson<NonNullable<typeof exportData>>(args.file).catch(() => undefined)
         if (!exportData) {
-          process.stdout.write(`File not found: ${args.file}`)
+          process.stdout.write(`Unsupported format: ${args.file} is not a valid JSON session file`)
           process.stdout.write(EOL)
           return
         }