diff --git a/build.ts b/build.ts
index cfc4aa9bb..e4f504f9e 100644
--- a/build.ts
+++ b/build.ts
@@ -20,7 +20,7 @@ const result = await Bun.build({
   entrypoints: ['src/entrypoints/cli.tsx'],
   outdir,
   target: 'bun',
-  splitting: true,
+  splitting: false,
   define: getMacroDefines(),
   features,
 })
diff --git a/scripts/defines.ts b/scripts/defines.ts
index 6964c4a0e..ea79df7eb 100644
--- a/scripts/defines.ts
+++ b/scripts/defines.ts
@@ -59,10 +59,10 @@ export const DEFAULT_BUILD_FEATURES = [
   'PROACTIVE', // 主动自主代理模式（SleepTool 控制 tick 节奏，省 token）
   'DAEMON', // 守护进程模式，长驻 supervisor 管理后台 worker（非 GB 级主因）
   'ACP', // ACP 代理协议，支持外部 agent 接入
-  'WORKFLOW_SCRIPTS', // 工作流脚本（.claude/workflows/ 中的 YAML/MD）
+  // 'WORKFLOW_SCRIPTS', // 已禁用：stub 空壳，启用后 __esm() 循环初始化导致构建产物 hang
   // 'HISTORY_SNIP', // 已禁用：snip 功能暂时关闭
   // 'CONTEXT_COLLAPSE', // 已禁用：实现是空壳 stub，启用后会抑制 auto compact 导致上下文管理完全失效
-  'MONITOR_TOOL', // Monitor 工具，流式监控后台进程输出
+  // 'MONITOR_TOOL', // 已禁用：stub 空壳，启用后 __esm() 循环初始化导致构建产物 hang
   // 'FORK_SUBAGENT',            // 已禁用：通过 Agent tool 的特殊方式实现了等效功能，无需再开
   'KAIROS', // Kairos 定时任务系统核心
   'COORDINATOR_MODE', // 多 worker 编排模式（AgentSummary 泄露已在 52b61c2c 修复）
diff --git a/src/tools/DiscoverSkillsTool/prompt.ts b/src/tools/DiscoverSkillsTool/prompt.ts
index 20ddc1ab7..01dae6b18 100644
--- a/src/tools/DiscoverSkillsTool/prompt.ts
+++ b/src/tools/DiscoverSkillsTool/prompt.ts
@@ -1,3 +1,3 @@
-// Auto-generated stub — replace with real implementation
+// Stub — DiscoverSkills tool name
 export {};
-export const DISCOVER_SKILLS_TOOL_NAME: string = '';
+export const DISCOVER_SKILLS_TOOL_NAME: string = 'DiscoverSkills';
diff --git a/src/tools/SendUserFileTool/prompt.ts b/src/tools/SendUserFileTool/prompt.ts
index 65f8174fe..469047fa6 100644
--- a/src/tools/SendUserFileTool/prompt.ts
+++ b/src/tools/SendUserFileTool/prompt.ts
@@ -1,3 +1,3 @@
-// Auto-generated stub — replace with real implementation
+// Stub — SendUserFile tool name (KAIROS assistant mode)
 export {};
-export const SEND_USER_FILE_TOOL_NAME: string = '';
+export const SEND_USER_FILE_TOOL_NAME: string = 'SendUserFile';
diff --git a/src/tools/SnipTool/prompt.ts b/src/tools/SnipTool/prompt.ts
index dc82319e5..084b6a16c 100644
--- a/src/tools/SnipTool/prompt.ts
+++ b/src/tools/SnipTool/prompt.ts
@@ -1,3 +1,3 @@
-// Auto-generated stub — replace with real implementation
+// Stub — Snip tool name
 export {};
-export const SNIP_TOOL_NAME: string = '';
+export const SNIP_TOOL_NAME: string = 'Snip';
diff --git a/src/tools/TerminalCaptureTool/prompt.ts b/src/tools/TerminalCaptureTool/prompt.ts
index 90c458932..f50662f62 100644
--- a/src/tools/TerminalCaptureTool/prompt.ts
+++ b/src/tools/TerminalCaptureTool/prompt.ts
@@ -1,3 +1,3 @@
-// Auto-generated stub — replace with real implementation
+// Stub — TerminalCapture tool name
 export {};
-export const TERMINAL_CAPTURE_TOOL_NAME: string = '';
+export const TERMINAL_CAPTURE_TOOL_NAME: string = 'TerminalCapture';