From b52ddb2887ef4ee6b850fd0ed594861a251060bd Mon Sep 17 00:00:00 2001
From: Tianyi Cui <53024+tianyicui@users.noreply.github.com>
Date: Tue, 11 Aug 2026 17:59:07 +0800
Subject: [PATCH] fix(apiproxy): omit an unresolved compression option

ApiProxyDefaults uses an exact optional property, so passing config.sessionExportCompressionLevel directly made the service object carry an explicit undefined that is not assignable to the resolved request shape. The full host build caught this distinction after the redundant fallback was removed.\n\nConditionally omit the property when Cordis has not supplied a value. Direct createApiProxy callers still receive the implementation-owned default, while configured plugin values pass through without introducing another defaulting site.
---
 packages/host/apiproxy/src/index.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/host/apiproxy/src/index.ts b/packages/host/apiproxy/src/index.ts
index 07fb742551..ca0cf0329b 100644
--- a/packages/host/apiproxy/src/index.ts
+++ b/packages/host/apiproxy/src/index.ts
@@ -94,7 +94,9 @@ export class ApiProxyService extends Service implements ApiProxy {
       saveDefaultModelSelection: selection => ctx.agentDefaultModel.saveSelection(selection),
       cwd: process.cwd(),
       ...config.nativeOpen === undefined ? {} : { canOpenPath: () => config.nativeOpen as boolean },
-      sessionExportCompressionLevel: config.sessionExportCompressionLevel,
+      ...(config.sessionExportCompressionLevel === undefined
+        ? {}
+        : { sessionExportCompressionLevel: config.sessionExportCompressionLevel }),
     })
     this.sessions = api.sessions
     this.subagents = api.subagents