From a39db2933995955a46046e4263d4df87d33a68e0 Mon Sep 17 00:00:00 2001
From: dingyi <dingyi222666@foxmail.com>
Date: Sat, 29 Aug 2026 01:29:55 +0800
Subject: [PATCH 1/2] fix(adapters): enable image input for deepseek vision
 models

---
 packages/adapter-deepseek/src/client.ts | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/packages/adapter-deepseek/src/client.ts b/packages/adapter-deepseek/src/client.ts
index ab49e0f2e..52aa4e450 100644
--- a/packages/adapter-deepseek/src/client.ts
+++ b/packages/adapter-deepseek/src/client.ts
@@ -18,6 +18,10 @@ import {
 import { DeepseekRequester } from './requester'
 import { ChatLunaPlugin } from 'koishi-plugin-chatluna/services/chat'
 import { Config, logger as pluginLogger } from '.'
+import {
+    getOpenAIFileHandlingConfig,
+    supportImageInput
+} from '@chatluna/v1-shared-adapter'
 import { RunnableConfig } from '@langchain/core/runnables'
 
 import type { ModelUsageReporter } from 'koishi-plugin-chatluna/llm-core/platform/usage'
@@ -83,7 +87,12 @@ export class DeepseekClient extends PlatformModelAndEmbeddingsClient<ClientConfi
                         maxTokens: 1_000_000,
                         capabilities:
                             type === ModelType.llm
-                                ? [ModelCapabilities.ToolCall]
+                                ? [
+                                      ModelCapabilities.ToolCall,
+                                      supportImageInput(model)
+                                          ? ModelCapabilities.ImageInput
+                                          : null
+                                  ].filter(Boolean)
                                 : []
                     } as ModelInfo
                 })
@@ -125,6 +134,7 @@ export class DeepseekClient extends PlatformModelAndEmbeddingsClient<ClientConfi
                 temperature: this._config.temperature,
                 maxRetries: this._config.maxRetries,
                 llmType: 'deepseek',
+                fileHandlingConfig: getOpenAIFileHandlingConfig(model),
                 isThinkModel:
                     model.includes('reasoner') ||
                     model.includes('thinking') ||

From 313845efc17a9448903115b2aeae2a5fcf4d8183 Mon Sep 17 00:00:00 2001
From: dingyi <dingyi222666@foxmail.com>
Date: Sat, 29 Aug 2026 01:39:55 +0800
Subject: [PATCH 2/2] fix(adapters): use deepseek official image formats and
 limits

- fileHandlingConfig moved to utils.ts with DeepSeek-supported MIME types
  (JPEG/PNG/GIF/WebP, no BMP) and official size limits (32MiB per image,
  48MiB per request) per https://api-docs.deepseek.com/guides/vision
---
 packages/adapter-deepseek/src/client.ts | 10 +++++-----
 packages/adapter-deepseek/src/utils.ts  | 13 +++++++++++++
 2 files changed, 18 insertions(+), 5 deletions(-)
 create mode 100644 packages/adapter-deepseek/src/utils.ts

diff --git a/packages/adapter-deepseek/src/client.ts b/packages/adapter-deepseek/src/client.ts
index 52aa4e450..c003cfe64 100644
--- a/packages/adapter-deepseek/src/client.ts
+++ b/packages/adapter-deepseek/src/client.ts
@@ -18,11 +18,9 @@ import {
 import { DeepseekRequester } from './requester'
 import { ChatLunaPlugin } from 'koishi-plugin-chatluna/services/chat'
 import { Config, logger as pluginLogger } from '.'
-import {
-    getOpenAIFileHandlingConfig,
-    supportImageInput
-} from '@chatluna/v1-shared-adapter'
+import { supportImageInput } from '@chatluna/v1-shared-adapter'
 import { RunnableConfig } from '@langchain/core/runnables'
+import { deepseekFileHandlingConfig } from './utils'
 
 import type { ModelUsageReporter } from 'koishi-plugin-chatluna/llm-core/platform/usage'
 
@@ -134,7 +132,9 @@ export class DeepseekClient extends PlatformModelAndEmbeddingsClient<ClientConfi
                 temperature: this._config.temperature,
                 maxRetries: this._config.maxRetries,
                 llmType: 'deepseek',
-                fileHandlingConfig: getOpenAIFileHandlingConfig(model),
+                fileHandlingConfig: supportImageInput(model)
+                    ? deepseekFileHandlingConfig
+                    : undefined,
                 isThinkModel:
                     model.includes('reasoner') ||
                     model.includes('thinking') ||
diff --git a/packages/adapter-deepseek/src/utils.ts b/packages/adapter-deepseek/src/utils.ts
new file mode 100644
index 000000000..77b631cce
--- /dev/null
+++ b/packages/adapter-deepseek/src/utils.ts
@@ -0,0 +1,13 @@
+import { FileHandlingConfig } from 'koishi-plugin-chatluna/llm-core/platform/client'
+
+// https://api-docs.deepseek.com/guides/vision
+export const deepseekFileHandlingConfig: FileHandlingConfig = {
+    supportedMimeTypes: new Set([
+        'image/jpeg',
+        'image/png',
+        'image/gif',
+        'image/webp'
+    ]),
+    maxTotalSizeBytes: 48 * 1024 * 1024,
+    maxFileSizeBytes: 32 * 1024 * 1024
+}