From eb7dd2a8d6fae4ffccb0f08509587f7b3f49b945 Mon Sep 17 00:00:00 2001
From: dingyi <dingyi222666@foxmail.com>
Date: Fri, 21 Aug 2026 22:53:05 +0800
Subject: [PATCH] fix(adapters): filter empty text parts in message conversion

---
 packages/adapter-claude/src/utils.ts | 10 ++++++----
 packages/adapter-gemini/src/utils.ts |  6 ++++--
 packages/shared-adapter/src/utils.ts |  6 +++++-
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/packages/adapter-claude/src/utils.ts b/packages/adapter-claude/src/utils.ts
index 7769003e8..f281e8c1e 100644
--- a/packages/adapter-claude/src/utils.ts
+++ b/packages/adapter-claude/src/utils.ts
@@ -320,10 +320,12 @@ async function processMessageContent(
         await Promise.all(
             content.map(async (message) => {
                 if (message.type === 'text') {
-                    return {
-                        type: 'text',
-                        text: message.text as string
-                    } as const
+                    return message.text.length > 0
+                        ? {
+                              type: 'text',
+                              text: message.text as string
+                          }
+                        : null
                 }
 
                 if (isMessageContentImageUrl(message)) {
diff --git a/packages/adapter-gemini/src/utils.ts b/packages/adapter-gemini/src/utils.ts
index 37124a6f2..90456c475 100644
--- a/packages/adapter-gemini/src/utils.ts
+++ b/packages/adapter-gemini/src/utils.ts
@@ -87,7 +87,9 @@ export async function langchainMessageToGeminiMessage(
             message.additional_kwargs['thought_data'] ?? {}
         const parts =
             typeof message.content === 'string'
-                ? [{ text: message.content }]
+                ? message.content.length > 0
+                    ? [{ text: message.content }]
+                    : []
                 : await processGeminiContentParts(plugin, message.content)
 
         item.parts = [...getContextParts(thoughtData), ...parts]
@@ -359,7 +361,7 @@ async function processGeminiContentParts(
     const mappedParts = await Promise.all(
         content.map(async (part) => {
             if (isMessageContentText(part)) {
-                return { text: part.text }
+                return part.text.length > 0 ? { text: part.text } : null
             }
             if (isMessageContentImageUrl(part)) {
                 return await processGeminiImageContent(plugin, part)
diff --git a/packages/shared-adapter/src/utils.ts b/packages/shared-adapter/src/utils.ts
index 99739905c..fa0825fb3 100644
--- a/packages/shared-adapter/src/utils.ts
+++ b/packages/shared-adapter/src/utils.ts
@@ -34,7 +34,8 @@ import { logger } from 'koishi-plugin-chatluna'
 import {
     getImageMimeType,
     getMimeTypeFromSource,
-    isMessageContentImageUrl
+    isMessageContentImageUrl,
+    isMessageContentText
 } from 'koishi-plugin-chatluna/utils/string'
 import {
     isChatLunaUserMessage,
@@ -447,6 +448,9 @@ export async function langchainMessageToOpenAIMessage(
                 supportImageInputType === true
             const mappedContent = await Promise.all(
                 msg.content.map(async (content) => {
+                    if (isMessageContentText(content)) {
+                        return content.text.length > 0 ? content : null
+                    }
                     if (isMessageContentImageUrl(content)) {
                         if (!supportsImage) {
                             logger.warn(