From 3c7b229d8bf33cf12b6373bf5ab86072c5f5fa67 Mon Sep 17 00:00:00 2001
From: Andrew Pashynnyk <30318777+kynnyhsap@users.noreply.github.com>
Date: Thu, 23 Oct 2025 18:38:55 +0300
Subject: [PATCH] fix: allow `tool.execute.after` hook to modify MCP tool
 output (#3381)

---
 packages/opencode/src/session/prompt.ts | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/opencode/src/session/prompt.ts b/packages/opencode/src/session/prompt.ts
index b49b22a5..ee8e3677 100644
--- a/packages/opencode/src/session/prompt.ts
+++ b/packages/opencode/src/session/prompt.ts
@@ -588,10 +588,7 @@ export namespace SessionPrompt {
           },
         )
         const result = await execute(args, opts)
-        const output = result.content
-          .filter((x: any) => x.type === "text")
-          .map((x: any) => x.text)
-          .join("\n\n")
+
         await Plugin.trigger(
           "tool.execute.after",
           {
@@ -602,6 +599,11 @@ export namespace SessionPrompt {
           result,
         )
 
+        const output = result.content
+          .filter((x: any) => x.type === "text")
+          .map((x: any) => x.text)
+          .join("\n\n")
+
         return {
           title: "",
           metadata: {},