From d3d261d37eec38184818f2ad3b84251e20d69cc2 Mon Sep 17 00:00:00 2001
From: Dax Raad <d@ironbay.co>
Date: Mon, 2 Feb 2026 12:39:53 -0500
Subject: [PATCH] cli: use ANSI escape codes for reasoning output formatting

---
 packages/opencode/src/cli/cmd/run.ts | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/opencode/src/cli/cmd/run.ts b/packages/opencode/src/cli/cmd/run.ts
index aacb641024..6a1c0386cd 100644
--- a/packages/opencode/src/cli/cmd/run.ts
+++ b/packages/opencode/src/cli/cmd/run.ts
@@ -418,13 +418,13 @@ export const RunCommand = cmd({
               if (emit("reasoning", { part })) continue
               const text = part.text.trim()
               if (!text) continue
-              if (!process.stdout.isTTY) {
-                process.stdout.write(text + EOL)
+              if (process.stdout.isTTY) {
+                UI.empty()
+                UI.println(`\u001b[3m${text}\u001b[0m`)
+                UI.empty()
                 continue
               }
-              UI.empty()
-              UI.println(`_${text}_`)
-              UI.empty()
+              process.stdout.write(text + EOL)
             }
           }