diff --git a/packages/opencode/src/session/compaction.ts b/packages/opencode/src/session/compaction.ts
index d9ead5791..ca75811c5 100644
--- a/packages/opencode/src/session/compaction.ts
+++ b/packages/opencode/src/session/compaction.ts
@@ -173,6 +173,7 @@ export namespace SessionCompaction {
             ],
           },
         ],
+        tools: [],
       })
 
     // TODO: reduce duplication between compaction.ts & prompt.ts