diff --git a/packages/opencode/src/session/compaction.ts b/packages/opencode/src/session/compaction.ts
index fa439e4efffa..4f008f962fc1 100644
--- a/packages/opencode/src/session/compaction.ts
+++ b/packages/opencode/src/session/compaction.ts
@@ -343,8 +343,9 @@ const layer = Layer.effect(
       const compacting = yield* plugin.trigger(
         "experimental.session.compacting",
         { sessionID: input.sessionID },
-        { context: [], prompt: undefined },
+        { context: [], prompt: undefined, skip: false },
       )
+      if (compacting.skip) return "continue"
       const nextPrompt = compacting.prompt ?? buildPrompt({ previousSummary, context: compacting.context })
       const msgs = structuredClone(selected.head)
       yield* plugin.trigger("experimental.chat.messages.transform", {}, { messages: msgs })
diff --git a/packages/plugin/src/index.ts b/packages/plugin/src/index.ts
index edfa0139dfca..efec30220b8a 100644
--- a/packages/plugin/src/index.ts
+++ b/packages/plugin/src/index.ts
@@ -304,7 +304,7 @@ export interface Hooks {
    */
   "experimental.session.compacting"?: (
     input: { sessionID: string },
-    output: { context: string[]; prompt?: string },
+    output: { context: string[]; prompt?: string; skip?: boolean },
   ) => Promise<void>
   /**
    * Called after compaction succeeds and before a synthetic user