feat(tui): add v2 terminal interface

packages/opencode/src/cli/cmd/run/scrollback.writer.tsx

@@ -338,7 +338,6 @@ export function turnSummaryWriter(input: { agent: string; model: string; duratio
     () => (
       <box width="100%" height={1}>
         <text wrapMode="none" truncate>
-          <span style={{ fg: input.theme.block.highlight }}>▣ </span>
           <span style={{ fg: input.theme.block.text }}>{input.agent}</span>
           <span style={{ fg: input.theme.block.muted }}>
             {" "}

packages/opencode/src/cli/cmd/run/turn-summary.ts

@@ -10,7 +10,7 @@ export function turnSummaryCommit(input: {
 }): StreamCommit {
   return {
     kind: "system",
-    text: `▣ ${input.agent} · ${input.model} · ${input.duration}`,
+    text: `${input.agent} · ${input.model} · ${input.duration}`,
     phase: "final",
     source: "system",
     summary: {

packages/opencode/src/plugin/tui/internal.ts

@@ -1,10 +1,7 @@
 import { createBuiltinPlugins, type BuiltinTuiPlugin } from "@opencode-ai/tui/builtins"
-import type { RuntimeFlags } from "@/effect/runtime-flags"
 
 export type InternalTuiPlugin = BuiltinTuiPlugin
 
-export function internalTuiPlugins(flags: Pick<RuntimeFlags.Info, "experimentalEventSystem">): InternalTuiPlugin[] {
-  return createBuiltinPlugins({
-    experimentalEventSystem: flags.experimentalEventSystem,
-  })
+export function internalTuiPlugins(): InternalTuiPlugin[] {
+  return createBuiltinPlugins()
 }

packages/opencode/src/plugin/tui/runtime.ts

@@ -1089,7 +1089,7 @@ async function load(input: {
     if (Flag.OPENCODE_PURE && pluginOrigins.length) {
     }
 
-    for (const item of internalTuiPlugins(flags)) {
+    for (const item of internalTuiPlugins()) {
       const entry = loadInternalPlugin(item)
       const meta = createMeta(entry.source, entry.spec, entry.target, undefined, entry.id)
       addPluginEntry(next, {

packages/opencode/test/cli/run/scrollback.surface.test.ts

@@ -119,7 +119,7 @@ test("turn summary starts at the left edge", async () => {
 
     const commits = claim(out.renderer)
     try {
-      expect(renderRows(commits.at(-1)!)[0]).toBe("▣ Build · Little Frank · 2.2s")
+      expect(renderRows(commits.at(-1)!)[0]).toBe("Build · Little Frank · 2.2s")
     } finally {
       destroy(commits)
     }

packages/opencode/test/cli/run/session-replay.test.ts

@@ -279,7 +279,7 @@ describe("run session replay", () => {
       }),
       expect.objectContaining({
         kind: "system",
-        text: "▣ Build · gpt-5 · 2.8s",
+        text: "Build · gpt-5 · 2.8s",
         phase: "final",
         source: "system",
         messageID: "msg-1",
@@ -314,7 +314,7 @@ describe("run session replay", () => {
     expect(out.commits.at(-1)).toEqual(
       expect.objectContaining({
         kind: "system",
-        text: "▣ Build · Little Frank · 2.8s",
+        text: "Build · Little Frank · 2.8s",
         summary: {
           agent: "Build",
           model: "Little Frank",
@@ -346,7 +346,7 @@ describe("run session replay", () => {
     expect(out.commits.filter((commit) => commit.summary)).toEqual([
       expect.objectContaining({
         kind: "system",
-        text: "▣ Build · gpt-5 · 2.0s",
+        text: "Build · gpt-5 · 2.0s",
         messageID: "msg-step-2",
       }),
     ])