fix super modifier parsing

packages/opencode/src/cli/cmd/tui/component/dialog-model.tsx

@@ -199,7 +199,7 @@ export function DialogModel(props: { providerID?: string }) {
     <DialogSelect
       keybind={[
         {
-          keybind: { ctrl: true, name: "a", meta: false, shift: false, leader: false },
+          keybind: Keybind.parse("ctrl+a")[0],
           title: connected() ? "Connect provider" : "View all providers",
           onTrigger() {
             dialog.replace(() => <DialogProvider />)

packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx

@@ -10,6 +10,7 @@ import { useSync } from "@tui/context/sync"
 import { Identifier } from "@/id/id"
 import { createStore, produce } from "solid-js/store"
 import { useKeybind } from "@tui/context/keybind"
+import { Keybind } from "@/util/keybind"
 import { usePromptHistory, type PromptInfo } from "./history"
 import { type AutocompleteRef, Autocomplete } from "./autocomplete"
 import { useCommandDialog } from "../dialog-command"
@@ -85,7 +86,7 @@ const TEXTAREA_ACTIONS = [
 ] as const
 
 function mapTextareaKeybindings(
-  keybinds: Record<string, { ctrl: boolean; meta: boolean; shift: boolean; leader: boolean; name: string }[]>,
+  keybinds: Record<string, Keybind.Info[]>,
   action: (typeof TEXTAREA_ACTIONS)[number],
 ): KeyBinding[] {
   const configKey = `input_${action.replace(/-/g, "_")}`
@@ -96,6 +97,7 @@ function mapTextareaKeybindings(
     ctrl: binding.ctrl || undefined,
     meta: binding.meta || undefined,
     shift: binding.shift || undefined,
+    super: binding.super || undefined,
     action,
   }))
 }

packages/opencode/src/cli/cmd/tui/context/keybind.tsx

@@ -73,21 +73,11 @@ export const { use: useKeybind, provider: KeybindProvider } = createSimpleContex
         return store.leader
       },
       parse(evt: ParsedKey): Keybind.Info {
-        if (evt.name === "\x1F")
-          return {
-            ctrl: true,
-            name: "_",
-            shift: false,
-            leader: false,
-            meta: false,
-          }
-        return {
-          ctrl: evt.ctrl,
-          name: evt.name,
-          shift: evt.shift,
-          leader: store.leader,
-          meta: evt.meta,
+        // Handle special case for Ctrl+Underscore (represented as \x1F)
+        if (evt.name === "\x1F") {
+          return Keybind.fromParsedKey({ ...evt, name: "_", ctrl: true }, store.leader)
         }
+        return Keybind.fromParsedKey(evt, store.leader)
       },
       match(key: keyof KeybindsConfig, evt: ParsedKey) {
         const keybind = keybinds()[key]

packages/opencode/src/config/config.ts

@@ -512,8 +512,8 @@ export namespace Config {
       input_delete_to_line_start: z.string().optional().default("ctrl+u").describe("Delete to start of line in input"),
       input_backspace: z.string().optional().default("backspace,shift+backspace").describe("Backspace in input"),
       input_delete: z.string().optional().default("ctrl+d,delete,shift+delete").describe("Delete character in input"),
-      input_undo: z.string().optional().default("ctrl+-").describe("Undo in input"),
-      input_redo: z.string().optional().default("ctrl+.").describe("Redo in input"),
+      input_undo: z.string().optional().default("ctrl+-,super+z").describe("Undo in input"),
+      input_redo: z.string().optional().default("ctrl+.,super+shift+z").describe("Redo in input"),
       input_word_forward: z
         .string()
         .optional()

packages/opencode/src/util/keybind.ts

@@ -1,16 +1,35 @@
 import { isDeepEqual } from "remeda"
+import type { ParsedKey } from "@opentui/core"
 
 export namespace Keybind {
-  export type Info = {
-    ctrl: boolean
-    meta: boolean
-    shift: boolean
-    leader: boolean
-    name: string
+  /**
+   * Keybind info derived from OpenTUI's ParsedKey with our custom `leader` field.
+   * This ensures type compatibility and catches missing fields at compile time.
+   */
+  export type Info = Pick<ParsedKey, "name" | "ctrl" | "meta" | "shift" | "super"> & {
+    leader: boolean // our custom field
   }
 
   export function match(a: Info, b: Info): boolean {
-    return isDeepEqual(a, b)
+    // Normalize super field (undefined and false are equivalent)
+    const normalizedA = { ...a, super: a.super ?? false }
+    const normalizedB = { ...b, super: b.super ?? false }
+    return isDeepEqual(normalizedA, normalizedB)
+  }
+
+  /**
+   * Convert OpenTUI's ParsedKey to our Keybind.Info format.
+   * This helper ensures all required fields are present and avoids manual object creation.
+   */
+  export function fromParsedKey(key: ParsedKey, leader = false): Info {
+    return {
+      name: key.name,
+      ctrl: key.ctrl,
+      meta: key.meta,
+      shift: key.shift,
+      super: key.super ?? false,
+      leader,
+    }
   }
 
   export function toString(info: Info): string {
@@ -18,6 +37,7 @@ export namespace Keybind {
 
     if (info.ctrl) parts.push("ctrl")
     if (info.meta) parts.push("alt")
+    if (info.super) parts.push("super")
     if (info.shift) parts.push("shift")
     if (info.name) {
       if (info.name === "delete") parts.push("del")
@@ -58,6 +78,9 @@ export namespace Keybind {
           case "option":
             info.meta = true
             break
+          case "super":
+            info.super = true
+            break
           case "shift":
             info.shift = true
             break