diff --git a/packages/opencode/src/session/processor.ts b/packages/opencode/src/session/processor.ts
index 671b7517218..a523e448106 100644
--- a/packages/opencode/src/session/processor.ts
+++ b/packages/opencode/src/session/processor.ts
@@ -149,16 +149,14 @@ export const layer: Layer.Layer<
       const ac = new AbortController() // kilocode_change — abort controller for offline handler
       const slog = log.clone().tag("session.id", input.sessionID).tag("messageID", input.assistantMessage.id)
 
-      const parse = (e: unknown) => {
-        // kilocode_change start - preserve retryable errors raised by Kilo processor guards
-        const err = KiloSessionProcessor.preserveError(e)
-        if (err) return err
-        // kilocode_change end
-        return MessageV2.fromError(e, {
+      // kilocode_change start - preserve retryable errors raised by Kilo processor guards
+      const parse = (e: unknown) =>
+        KiloSessionProcessor.preserveError(e) ??
+        MessageV2.fromError(e, {
           providerID: input.model.providerID,
           aborted,
         })
-      }
+      // kilocode_change end
 
       const settleToolCall = Effect.fn("SessionProcessor.settleToolCall")(function* (toolCallID: string) {
         const done = ctx.toolcalls[toolCallID]?.done
diff --git a/packages/opencode/test/session/processor-effect.test.ts b/packages/opencode/test/session/processor-effect.test.ts
index 8efd323c4e2..71f93a5ea2b 100644
--- a/packages/opencode/test/session/processor-effect.test.ts
+++ b/packages/opencode/test/session/processor-effect.test.ts
@@ -466,6 +466,7 @@ it.live("session.processor effect tests reset reasoning state across retries", (
   ),
 )
 
+// kilocode_change start - retry empty provider responses
 it.live("session.processor effect tests retry empty other finishes", () =>
   provideTmpdirServer(
     ({ dir, llm }) =>
@@ -512,6 +513,7 @@ it.live("session.processor effect tests retry empty other finishes", () =>
     { git: true, config: (url) => providerCfg(url) },
   ),
 )
+// kilocode_change end
 
 it.live("session.processor effect tests do not retry unknown json errors", () =>
   provideTmpdirServer(
diff --git a/packages/opencode/test/session/prompt.test.ts b/packages/opencode/test/session/prompt.test.ts
index dcbb7e655be..9a0d8c50dbf 100644
--- a/packages/opencode/test/session/prompt.test.ts
+++ b/packages/opencode/test/session/prompt.test.ts
@@ -397,6 +397,7 @@ it.live("loop calls LLM and returns assistant message", () =>
   ),
 )
 
+// kilocode_change start - reject oversized payloads after pruning
 it.live("loop does not send payload that remains large after pruning", () =>
   provideTmpdirServer(
     Effect.fnUntraced(function* ({ llm }) {
@@ -424,6 +425,7 @@ it.live("loop does not send payload that remains large after pruning", () =>
     { git: true, config: providerCfg },
   ),
 )
+// kilocode_change end
 
 // kilocode_change start - replacement prompts unblock pending Question service requests
 it.live("new prompt dismisses a pending question", () =>