From 8c7b35ad05c9dca5778501b287c5f17ee59dd0a2 Mon Sep 17 00:00:00 2001
From: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Date: Wed, 11 Feb 2026 15:43:04 -0600
Subject: [PATCH] tweak: compaction check (#13214)

---
 packages/opencode/src/session/compaction.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/opencode/src/session/compaction.ts b/packages/opencode/src/session/compaction.ts
index 5660ca973..924542605 100644
--- a/packages/opencode/src/session/compaction.ts
+++ b/packages/opencode/src/session/compaction.ts
@@ -41,7 +41,9 @@ export namespace SessionCompaction {
 
     const reserved =
       config.compaction?.reserved ?? Math.min(COMPACTION_BUFFER, ProviderTransform.maxOutputTokens(input.model))
-    const usable = input.model.limit.input ? input.model.limit.input - reserved : context - reserved
+    const usable = input.model.limit.input
+      ? input.model.limit.input - reserved
+      : context - ProviderTransform.maxOutputTokens(input.model)
     return count >= usable
   }