diff --git a/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx b/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
index 4558914cb7e..ffd5f5acd1d 100644
--- a/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
+++ b/packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx
@@ -66,6 +66,11 @@ export function Prompt(props: PromptProps) {
   const dialog = useDialog()
   const toast = useToast()
   const status = createMemo(() => sync.data.session_status?.[props.sessionID ?? ""] ?? { type: "idle" })
+  const sessionInterruptTimeout = createMemo(() => {
+    const timeout = (sync.data.config as { tui?: { session_interrupt_timeout_ms?: number } }).tui
+      ?.session_interrupt_timeout_ms
+    return typeof timeout === "number" ? timeout : 5000
+  })
   const history = usePromptHistory()
   const stash = usePromptStash()
   const command = useCommandDialog()
@@ -212,7 +217,7 @@ export function Prompt(props: PromptProps) {
 
           setTimeout(() => {
             setStore("interrupt", 0)
-          }, 5000)
+          }, sessionInterruptTimeout())
 
           if (store.interrupt >= 2) {
             sdk.client.session.abort({
diff --git a/packages/opencode/src/config/config.ts b/packages/opencode/src/config/config.ts
index be234948424..b86ce18873f 100644
--- a/packages/opencode/src/config/config.ts
+++ b/packages/opencode/src/config/config.ts
@@ -169,6 +169,7 @@ export namespace Config {
     }
 
     if (!result.keybinds) result.keybinds = Info.shape.keybinds.parse({})
+    result.tui = Info.shape.tui.parse(result.tui ?? {})
 
     // Apply flag overrides for compaction settings
     if (Flag.OPENCODE_DISABLE_AUTOCOMPACT) {
@@ -180,6 +181,7 @@ export namespace Config {
 
     return {
       config: result,
+
       directories,
     }
   })
@@ -716,6 +718,13 @@ export namespace Config {
       .enum(["auto", "stacked"])
       .optional()
       .describe("Control diff rendering style: 'auto' adapts to terminal width, 'stacked' always shows single column"),
+    session_interrupt_timeout_ms: z
+      .number()
+      .int()
+      .min(500)
+      .max(10000)
+      .default(5000)
+      .describe("Time window in milliseconds to detect double-Esc interrupts"),
   })
 
   export const Server = z
diff --git a/packages/opencode/test/config/config.test.ts b/packages/opencode/test/config/config.test.ts
index b52f3ef7f77..5f38833e7b6 100644
--- a/packages/opencode/test/config/config.test.ts
+++ b/packages/opencode/test/config/config.test.ts
@@ -18,6 +18,62 @@ test("loads config with defaults when no files exist", async () => {
   })
 })
 
+test("defaults session interrupt timeout when not configured", async () => {
+  await using tmp = await tmpdir()
+  await Instance.provide({
+    directory: tmp.path,
+    fn: async () => {
+      const config = await Config.get()
+      expect(config.tui?.session_interrupt_timeout_ms).toBe(5000)
+    },
+  })
+})
+
+test("accepts in-range session interrupt timeout", async () => {
+  await using tmp = await tmpdir({
+    init: async (dir) => {
+      await Bun.write(
+        path.join(dir, "opencode.json"),
+        JSON.stringify({
+          $schema: "https://opencode.ai/config.json",
+          tui: {
+            session_interrupt_timeout_ms: 1200,
+          },
+        }),
+      )
+    },
+  })
+  await Instance.provide({
+    directory: tmp.path,
+    fn: async () => {
+      const config = await Config.get()
+      expect(config.tui?.session_interrupt_timeout_ms).toBe(1200)
+    },
+  })
+})
+
+test("rejects out-of-range session interrupt timeout", async () => {
+  await using tmp = await tmpdir({
+    init: async (dir) => {
+      await Bun.write(
+        path.join(dir, "opencode.json"),
+        JSON.stringify({
+          $schema: "https://opencode.ai/config.json",
+          tui: {
+            session_interrupt_timeout_ms: 200,
+          },
+        }),
+      )
+    },
+  })
+  await Instance.provide({
+    directory: tmp.path,
+    fn: async () => {
+      await expect(Config.get()).rejects.toThrow()
+    },
+  })
+})
+
 test("loads JSON config file", async () => {
   await using tmp = await tmpdir({
     init: async (dir) => {
diff --git a/packages/web/src/content/docs/config.mdx b/packages/web/src/content/docs/config.mdx
index a5931b6fcf5..f9a0594ebc8 100644
--- a/packages/web/src/content/docs/config.mdx
+++ b/packages/web/src/content/docs/config.mdx
@@ -170,6 +170,7 @@ Available options:
 - `scroll_acceleration.enabled` - Enable macOS-style scroll acceleration. **Takes precedence over `scroll_speed`.**
 - `scroll_speed` - Custom scroll speed multiplier (default: `1`, minimum: `1`). Ignored if `scroll_acceleration.enabled` is `true`.
 - `diff_style` - Control diff rendering. `"auto"` adapts to terminal width, `"stacked"` always shows single column.
+- `session_interrupt_timeout_ms` - Time window for double-Esc session interrupts (default: `5000`, min: `500`, max: `10000`). Applies to TUI session interruption only.
 
 [Learn more about using the TUI here](/docs/tui).