feat: removed support for the DeepSeek official Responses API, as the official Responses API is no longer available.

Author: qorzj

README-en.md

@@ -129,7 +129,7 @@ Write a shell notification script that calls a Slack webhook, then set the `noti
 
 ### How do I enable web search?
 
-Deep Code now supports native web search through the [DeepSeek Responses API](https://api-docs.deepseek.com/guides/responses_api/#tools). If you prefer to use a custom script for web search, set the `webSearchTool` field in `~/.deepcode/settings.json` to the full path of your script. For detailed steps, refer to: https://github.com/qorzj/web_search_cli
+Deep Code comes with a built-in, free Web Search tool that works well for most use cases. If you prefer to use a custom script for web search, set the `webSearchTool` field in `~/.deepcode/settings.json` to the full path of your script. For detailed steps, refer to: https://github.com/qorzj/web_search_cli
 
 ### Does it support Coding Plan?
 

README-zh_CN.md

@@ -128,7 +128,7 @@ Deep Code 的收益来自于工具约束、上下文管理、Agent Skills 和权
 
 ### 怎样启用联网搜索功能？
 
-Deep Code 已支持 [DeepSeek Responses API](https://api-docs.deepseek.com/zh-cn/guides/responses_api/#tools) 的原生联网搜索能力。如果你希望使用自定义脚本进行联网搜索，可以在 `~/.deepcode/settings.json` 中将 `webSearchTool` 设为脚本的完整路径即可。详细步骤可参考：https://github.com/qorzj/web_search_cli
+Deep Code自带免费的、且大部分情况够用的Web Search工具。如果你希望使用自定义脚本进行联网搜索，可以在 `~/.deepcode/settings.json` 中将 `webSearchTool` 设为脚本的完整路径即可。详细步骤可参考：https://github.com/qorzj/web_search_cli
 
 ### 如何配置 MCP？
 

README.md

@@ -128,7 +128,7 @@ Deep Code 的收益来自于工具约束、上下文管理、Agent Skills 和权
 
 ### 怎样启用联网搜索功能？
 
-Deep Code 已支持 [DeepSeek Responses API](https://api-docs.deepseek.com/zh-cn/guides/responses_api/#tools) 的原生联网搜索能力。如果你希望使用自定义脚本进行联网搜索，可以在 `~/.deepcode/settings.json` 中将 `webSearchTool` 设为脚本的完整路径即可。详细步骤可参考：https://github.com/qorzj/web_search_cli
+Deep Code自带免费的、且大部分情况够用的Web Search工具。如果你希望使用自定义脚本进行联网搜索，可以在 `~/.deepcode/settings.json` 中将 `webSearchTool` 设为脚本的完整路径即可。详细步骤可参考：https://github.com/qorzj/web_search_cli
 
 ### 如何配置 MCP？
 

docs/configuration.md

@@ -147,9 +147,7 @@ Deep Code 使用 `settings.json` 设置文件进行持久化配置，支持两
 
 #### `webSearchTool` — 自定义联网搜索
 
-未配置 `webSearchTool` 时，如果 `BASE_URL` 是 `https://api.deepseek.com`，Deep Code 会调用 DeepSeek Responses API 的 `web_search` 工具，并固定使用 `deepseek-v4-flash`，不受 `MODEL` 配置影响。其他 API 地址仍使用 Deep Code Web Search API。
-
-如果需要自定义搜索逻辑，可将 `webSearchTool` 设为一个可执行脚本的完整路径。自定义脚本始终优先于内置搜索：
+Deep Code 内置免费可用的 Web Search 工具。如果需要自定义搜索逻辑，可将 `webSearchTool` 设为一个可执行脚本的完整路径：
 
 ```json
 {

docs/configuration_en.md

@@ -147,9 +147,7 @@ The following context is injected as environment variables when the notify scrip
 
 #### `webSearchTool` — Custom Web Search
 
-When `webSearchTool` is not configured and `BASE_URL` is `https://api.deepseek.com`, Deep Code calls the `web_search` tool through the DeepSeek Responses API with the fixed `deepseek-v4-flash` model, regardless of the `MODEL` setting. Other API endpoints continue to use the Deep Code Web Search API.
-
-For custom search logic, set `webSearchTool` to the full path of an executable script. A custom script always takes precedence over the built-in search:
+Deep Code has a built-in, free-to-use Web Search tool. If you need custom search logic, set `webSearchTool` to the full path of an executable script:
 
 ```json
 {

packages/core/src/tests/tool-cancellation.test.ts

@@ -24,7 +24,7 @@ function setup(t: TestContext) {
   return { root, controller, context };
 }
 
-for (const stage of ["diagnosis", "escape", "language", "translation", "search", "image", "responses"] as const) {
+for (const stage of ["diagnosis", "escape", "language", "translation", "search", "image", "search-deepseek"] as const) {
   test(`cancellation reaches pending ${stage} request`, { timeout: 3000 }, async (t) => {
     const { root, controller, context } = setup(t);
     let calls = 0;
@@ -42,21 +42,23 @@ for (const stage of ["diagnosis", "escape", "language", "translation", "search",
         completions: {
           create: (body: unknown, options: { signal?: AbortSignal }) => {
             chatCalls++;
-            if (["search", "image", "responses"].includes(stage) || (stage === "translation" && chatCalls === 1)) {
+            if (
+              ["search", "image", "search-deepseek"].includes(stage) ||
+              (stage === "translation" && chatCalls === 1)
+            ) {
               return Promise.resolve({ choices: [{ message: { content: '{"dominant_language":"en"}' } }] });
             }
             return pending(body, options);
           },
         },
       },
-      responses: { create: pending },
     } as unknown as OpenAI;
     context.createOpenAIClient = () => ({
       client,
       model: "test",
       machineId: "test-machine",
       thinkingEnabled: false,
-      baseURL: stage === "responses" ? "https://api.deepseek.com" : "https://example.com",
+      baseURL: stage === "search-deepseek" ? "https://api.deepseek.com" : "https://example.com",
     });
     const originalFetch = globalThis.fetch;
     t.after(() => {