diff --git a/assets/oh-my-opencode.schema.json b/assets/oh-my-opencode.schema.json
index d43ff4501..d76d15299 100644
--- a/assets/oh-my-opencode.schema.json
+++ b/assets/oh-my-opencode.schema.json
@@ -6002,7 +6002,7 @@
           "minimum": 20
         },
         "isolation": {
-          "default": "inline",
+          "default": "session",
           "type": "string",
           "enum": [
             "inline",
diff --git a/src/config/schema/tmux.test.ts b/src/config/schema/tmux.test.ts
deleted file mode 100644
index 3e039b35e..000000000
--- a/src/config/schema/tmux.test.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-/// <reference types="bun-types" />
-
-import { describe, expect, test } from "bun:test"
-
-import { TmuxConfigSchema, TmuxIsolationSchema } from "./tmux"
-
-describe("TmuxIsolationSchema", () => {
-  describe('#given all supported isolation values', () => {
-    test('#when parsed #then it accepts inline, window, and session', () => {
-      expect(TmuxIsolationSchema.parse("inline")).toBe("inline")
-      expect(TmuxIsolationSchema.parse("window")).toBe("window")
-      expect(TmuxIsolationSchema.parse("session")).toBe("session")
-    })
-  })
-})
-
-describe("TmuxConfigSchema", () => {
-  describe('#given tmux isolation is omitted', () => {
-    test('#when parsed #then default isolation is inline', () => {
-      const result = TmuxConfigSchema.parse({})
-
-      expect(result.isolation).toBe("inline")
-    })
-  })
-})
diff --git a/src/config/schema/tmux.ts b/src/config/schema/tmux.ts
index a10edc7f9..77582cf40 100644
--- a/src/config/schema/tmux.ts
+++ b/src/config/schema/tmux.ts
@@ -20,7 +20,7 @@ export const TmuxConfigSchema = z.object({
   main_pane_size: z.number().min(20).max(80).default(60),
   main_pane_min_width: z.number().min(40).default(120),
   agent_pane_min_width: z.number().min(20).default(40),
-  isolation: TmuxIsolationSchema.default("inline"),
+  isolation: TmuxIsolationSchema.default("session"),
 })
 
 export type TmuxConfig = z.infer<typeof TmuxConfigSchema>
diff --git a/src/index.ts b/src/index.ts
index 5dd44ec04..e6018a22a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -51,7 +51,7 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
     main_pane_size: pluginConfig.tmux?.main_pane_size ?? 60,
     main_pane_min_width: pluginConfig.tmux?.main_pane_min_width ?? 120,
     agent_pane_min_width: pluginConfig.tmux?.agent_pane_min_width ?? 40,
-    isolation: pluginConfig.tmux?.isolation ?? "inline",
+    isolation: pluginConfig.tmux?.isolation ?? "session",
   }
 
   const modelCacheState = createModelCacheState()