From 5735a141888db17c1ea0a5ad5761912b8e6acb2d Mon Sep 17 00:00:00 2001
From: Kit Langton <kit.langton@gmail.com>
Date: Tue, 30 Jun 2026 23:51:13 -0400
Subject: [PATCH] fix(core): format background shell completion notice

---
 packages/core/src/tool/shell.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/src/tool/shell.ts b/packages/core/src/tool/shell.ts
index 8a0aa78afd..7ea732f48a 100644
--- a/packages/core/src/tool/shell.ts
+++ b/packages/core/src/tool/shell.ts
@@ -125,7 +125,7 @@ export const Plugin = {
                 : "Command cancelled"
           return runtime.session.synthetic({
             sessionID,
-            text: `<shell id="${callID}" state="${state}" command="${command}">\n${text}\n</shell>`,
+            text: `Shell command ${state}.\n\nCommand:\n${command}\n\n${state === "completed" ? "Output" : "Details"}:\n${text}`,
           })
         }),
         Effect.forkIn(scope, { startImmediately: true }),