支持DeepSeek

package-lock.json

@@ -9,11 +9,14 @@
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-      "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
-      "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
-      "license": "MIT",
-      "dependencies": {
-        "dunder-proto": "^1.0.1",
-        "es-object-atoms": "^1.0.0"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      }
-    },
     "node_modules/get-tsconfig": {
       "version": "4.13.0",
       "resolved": "https://registry.npmjs.org/get-tsconfig/-/get-tsconfig-4.13.0.tgz",
@@ -1258,66 +1138,6 @@
         "url": "https://github.com/privatenumber/get-tsconfig?sponsor=1"
       }
     },
-    "node_modules/gopd": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
-      "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
-    "node_modules/has-symbols": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
-      "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
-    "node_modules/has-tostringtag": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
-      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
-      "license": "MIT",
-      "dependencies": {
-        "has-symbols": "^1.0.3"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
-    "node_modules/hasown": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
-      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
-      "license": "MIT",
-      "dependencies": {
-        "function-bind": "^1.1.2"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      }
-    },
-    "node_modules/humanize-ms": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/humanize-ms/-/humanize-ms-1.2.1.tgz",
-      "integrity": "sha512-Fl70vYtsAFb/C06PTS9dZBo7ihau+Tu/DNCk/OyHhea07S+aeMWpFFkUaXRa8fI+ScZbEI8dfSxwY7gxZ9SAVQ==",
-      "license": "MIT",
-      "dependencies": {
-        "ms": "^2.0.0"
-      }
-    },
     "node_modules/iconv-lite": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.7.0.tgz",
@@ -1393,6 +1213,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/json-schema": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.4.0.tgz",
+      "integrity": "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA==",
+      "license": "(AFL-2.1 OR BSD-3-Clause)"
+    },
     "node_modules/log-symbols": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-6.0.0.tgz",
@@ -1421,36 +1247,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/math-intrinsics": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
-      "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4"
-      }
-    },
-    "node_modules/mime-db": {
-      "version": "1.52.0",
-      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
-      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
-    "node_modules/mime-types": {
-      "version": "2.1.35",
-      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
-      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
-      "license": "MIT",
-      "dependencies": {
-        "mime-db": "1.52.0"
-      },
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
     "node_modules/mimic-function": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/mimic-function/-/mimic-function-5.0.1.tgz",
@@ -1463,12 +1259,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/ms": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "license": "MIT"
-    },
     "node_modules/mute-stream": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/mute-stream/-/mute-stream-2.0.0.tgz",
@@ -1478,46 +1268,6 @@
         "node": "^18.17.0 || >=20.5.0"
       }
     },
-    "node_modules/node-domexception": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/node-domexception/-/node-domexception-1.0.0.tgz",
-      "integrity": "sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ==",
-      "deprecated": "Use your platform's native DOMException instead",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/jimmywarting"
-        },
-        {
-          "type": "github",
-          "url": "https://paypal.me/jimmywarting"
-        }
-      ],
-      "license": "MIT",
-      "engines": {
-        "node": ">=10.5.0"
-      }
-    },
-    "node_modules/node-fetch": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
-      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
-      "license": "MIT",
-      "dependencies": {
-        "whatwg-url": "^5.0.0"
-      },
-      "engines": {
-        "node": "4.x || >=6.0.0"
-      },
-      "peerDependencies": {
-        "encoding": "^0.1.0"
-      },
-      "peerDependenciesMeta": {
-        "encoding": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/onetime": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/onetime/-/onetime-7.0.0.tgz",
@@ -1662,12 +1412,6 @@
         "url": "https://github.com/chalk/strip-ansi?sponsor=1"
       }
     },
-    "node_modules/tr46": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
-      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
-      "license": "MIT"
-    },
     "node_modules/tslib": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
@@ -1712,33 +1456,9 @@
       "version": "6.21.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
       "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "devOptional": true,
       "license": "MIT"
     },
-    "node_modules/web-streams-polyfill": {
-      "version": "4.0.0-beta.3",
-      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-4.0.0-beta.3.tgz",
-      "integrity": "sha512-QW95TCTaHmsYfHDybGMwO5IJIM93I/6vTRk+daHTWFPhwh+C8Cg7j7XyKrwrj8Ib6vYXe0ocYNrmzY4xAAN6ug==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 14"
-      }
-    },
-    "node_modules/webidl-conversions": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
-      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
-      "license": "BSD-2-Clause"
-    },
-    "node_modules/whatwg-url": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
-      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
-      "license": "MIT",
-      "dependencies": {
-        "tr46": "~0.0.3",
-        "webidl-conversions": "^3.0.0"
-      }
-    },
     "node_modules/wrap-ansi": {
       "version": "6.2.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
@@ -1805,6 +1525,15 @@
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
       }
+    },
+    "node_modules/zod": {
+      "version": "4.1.13",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.13.tgz",
+      "integrity": "sha512-AvvthqfqrAhNH9dnfmrfKzX5upOdjUVJYFqNSlkmGf64gRaTzlPwz99IHYnVs28qYAybvAlBV+H7pn0saFY4Ig==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
     }
   }
 }

package.json

@@ -13,19 +13,28 @@
     "dev": "tsx src/index.ts",
     "lint": "eslint src/**/*.ts"
   },
-  "keywords": ["ai", "cli", "assistant", "claude", "terminal"],
+  "keywords": [
+    "ai",
+    "cli",
+    "assistant",
+    "claude",
+    "terminal"
+  ],
   "author": "",
   "license": "MIT",
   "dependencies": {
-    "@anthropic-ai/sdk": "^0.32.0",
+    "@ai-sdk/anthropic": "^2.0.54",
+    "@ai-sdk/deepseek": "^1.0.31",
+    "ai": "^5.0.108",
     "chalk": "^5.3.0",
     "commander": "^12.1.0",
+    "inquirer": "^12.0.0",
     "ora": "^8.1.0",
-    "inquirer": "^12.0.0"
+    "zod": "^4.1.13"
   },
   "devDependencies": {
     "@types/node": "^22.0.0",
-    "typescript": "^5.6.0",
+    "tsx": "^4.19.0",
-    "tsx": "^4.19.0"
+    "typescript": "^5.6.0"
   }
 }

src/core/agent.ts

@@ -1,73 +1,66 @@
-import Anthropic from '@anthropic-ai/sdk';
+import { createAnthropic } from '@ai-sdk/anthropic';
-import type { Tool, ToolResult, Message, AgentConfig } from '../types/index.js';
+import { createDeepSeek } from '@ai-sdk/deepseek';
+import { generateText, streamText, type ModelMessage, type Tool as AITool, type LanguageModel } from 'ai';
+import type { Tool, ToolResult, Message, AgentConfig, ProviderType } from '../types/index.js';
+import { buildZodSchema } from '../types/index.js';
+
+// Provider 工厂函数类型
+type ProviderFactory = (apiKey: string) => (model: string) => LanguageModel;
+
+// Provider 注册表
+const providers: Record<ProviderType, ProviderFactory> = {
+  anthropic: (apiKey) => {
+    const client = createAnthropic({ apiKey });
+    return (model) => client(model);
+  },
+  deepseek: (apiKey) => {
+    const client = createDeepSeek({ apiKey });
+    return (model) => client(model);
+  },
+};
 
 export class Agent {
-  private client: Anthropic;
+  private getModel: (model: string) => LanguageModel;
   private config: AgentConfig;
   private tools: Map<string, Tool> = new Map();
-  private conversationHistory: Message[] = [];
+  private conversationHistory: ModelMessage[] = [];
 
   constructor(config: AgentConfig) {
     this.config = config;
-    this.client = new Anthropic({
+
-      apiKey: config.apiKey,
+    const providerFactory = providers[config.provider];
-    });
+    if (!providerFactory) {
+      throw new Error(`不支持的 provider: ${config.provider}`);
+    }
+    this.getModel = providerFactory(config.apiKey);
   }
 
   // 注册工具
-  registerTool(tool: Tool): void {
+  registerTool(customTool: Tool): void {
-    this.tools.set(tool.name, tool);
+    this.tools.set(customTool.name, customTool);
   }
 
-  // 获取所有工具定义（用于 Claude API）
+  // 将自定义工具转换为 Vercel AI SDK 的工具格式
-  private getToolDefinitions(): Anthropic.Tool[] {
+  private getVercelTools(): Record<string, AITool> {
-    return Array.from(this.tools.values()).map((tool) => ({
+    const vercelTools: Record<string, AITool> = {};
-      name: tool.name,
-      description: tool.description,
-      input_schema: {
-        type: 'object' as const,
-        properties: Object.fromEntries(
-          Object.entries(tool.parameters).map(([key, param]) => [
-            key,
-            {
-              type: param.type,
-              description: param.description,
-            },
-          ])
-        ),
-        required: Object.entries(tool.parameters)
-          .filter(([, param]) => param.required)
-          .map(([key]) => key),
-      },
-    }));
-  }
 
-  // 执行工具
+    for (const [name, customTool] of this.tools) {
-  private async executeTool(
+      const schema = buildZodSchema(customTool.parameters);
-    toolName: string,
+
-    input: Record<string, unknown>
+      vercelTools[name] = {
-  ): Promise<ToolResult> {
+        description: customTool.description,
-    const tool = this.tools.get(toolName);
+        inputSchema: schema,
-    if (!tool) {
+        execute: async (params) => {
-      return {
+          const result = await customTool.execute(params as Record<string, unknown>);
-        success: false,
+          return result;
-        output: '',
+        },
-        error: `Tool "${toolName}" not found`,
+      } as AITool;
-      };
     }
 
-    try {
+    return vercelTools;
-      return await tool.execute(input);
-    } catch (error) {
-      return {
-        success: false,
-        output: '',
-        error: error instanceof Error ? error.message : String(error),
-      };
-    }
   }
 
-  // 发送消息并处理响应
+  // 发送消息并处理响应（流式）
   async chat(
     userMessage: string,
     onStream?: (text: string) => void
@@ -78,84 +71,52 @@ export class Agent {
       content: userMessage,
     });
 
-    const messages: Anthropic.MessageParam[] = this.conversationHistory.map(
+    const vercelTools = this.getVercelTools();
-      (msg) => ({
-        role: msg.role,
-        content: msg.content,
-      })
-    );
-
     let fullResponse = '';
 
-    // 循环处理，直到没有工具调用
+    if (onStream) {
-    while (true) {
+      // 流式模式
-      const response = await this.client.messages.create({
+      const result = streamText({
-        model: this.config.model,
+        model: this.getModel(this.config.model),
-        max_tokens: this.config.maxTokens,
         system: this.config.systemPrompt,
-        tools: this.getToolDefinitions(),
+        messages: this.conversationHistory,
-        messages,
+        tools: vercelTools,
-      });
+        maxOutputTokens: this.config.maxTokens,
-
+        onChunk: ({ chunk }) => {
-      // 处理响应内容
+          if (chunk.type === 'tool-call') {
-      const textBlocks: string[] = [];
+            onStream(`\n[调用工具: ${chunk.toolName}]\n`);
-      const toolUseBlocks: Anthropic.ToolUseBlock[] = [];
+          } else if (chunk.type === 'tool-result') {
-
+            const output = (chunk as { output?: ToolResult }).output;
-      for (const block of response.content) {
+            if (output && typeof output === 'object') {
-        if (block.type === 'text') {
+              if (output.success) {
-          textBlocks.push(block.text);
+                onStream(`[结果: ${output.output}]\n`);
-          if (onStream) {
+              } else {
-            onStream(block.text);
+                onStream(`[错误: ${output.error}]\n`);
+              }
+            }
           }
-        } else if (block.type === 'tool_use') {
+        },
-          toolUseBlocks.push(block);
-        }
-      }
-
-      fullResponse += textBlocks.join('');
-
-      // 如果没有工具调用，结束循环
-      if (toolUseBlocks.length === 0) {
-        break;
-      }
-
-      // 添加 assistant 消息
-      messages.push({
-        role: 'assistant',
-        content: response.content,
       });
 
-      // 处理工具调用
+      // 流式输出文本
-      const toolResults: Anthropic.ToolResultBlockParam[] = [];
+      for await (const chunk of result.textStream) {
-
+        fullResponse += chunk;
-      for (const toolUse of toolUseBlocks) {
+        onStream(chunk);
-        if (onStream) {
-          onStream(`\n[调用工具: ${toolUse.name}]\n`);
-        }
-
-        const result = await this.executeTool(
-          toolUse.name,
-          toolUse.input as Record<string, unknown>
-        );
-
-        if (onStream) {
-          onStream(
-            result.success ? `[结果: ${result.output}]\n` : `[错误: ${result.error}]\n`
-          );
-        }
-
-        toolResults.push({
-          type: 'tool_result',
-          tool_use_id: toolUse.id,
-          content: result.success ? result.output : `Error: ${result.error}`,
-        });
       }
 
-      // 添加工具结果
+      // 等待完成
-      messages.push({
+      await result.response;
-        role: 'user',
+    } else {
-        content: toolResults,
+      // 非流式模式
+      const result = await generateText({
+        model: this.getModel(this.config.model),
+        system: this.config.systemPrompt,
+        messages: this.conversationHistory,
+        tools: vercelTools,
+        maxOutputTokens: this.config.maxTokens,
       });
+
+      fullResponse = result.text;
     }
 
     // 保存助手响应到历史
@@ -174,6 +135,13 @@ export class Agent {
 
   // 获取对话历史
   getHistory(): Message[] {
-    return [...this.conversationHistory];
+    return this.conversationHistory
+      .filter((msg): msg is ModelMessage & { role: 'user' | 'assistant' } =>
+        msg.role === 'user' || msg.role === 'assistant'
+      )
+      .map((msg) => ({
+        role: msg.role,
+        content: typeof msg.content === 'string' ? msg.content : JSON.stringify(msg.content),
+      }));
   }
 }

src/types/index.ts

@@ -1,37 +1,45 @@
+import { z } from 'zod';
+
 // 消息类型
 export interface Message {
   role: 'user' | 'assistant';
   content: string;
 }
 
-// 工具定义
+// 工具参数定义
-export interface Tool {
-  name: string;
-  description: string;
-  parameters: Record<string, ToolParameter>;
-  execute: (params: Record<string, unknown>) => Promise<ToolResult>;
-}
-
 export interface ToolParameter {
   type: 'string' | 'number' | 'boolean' | 'array' | 'object';
   description: string;
   required?: boolean;
 }
 
+// 工具执行结果
 export interface ToolResult {
   success: boolean;
   output: string;
   error?: string;
 }
 
+// 工具定义（兼容 Vercel AI SDK 的 tool 格式）
+export interface Tool {
+  name: string;
+  description: string;
+  parameters: Record<string, ToolParameter>;
+  execute: (params: Record<string, unknown>) => Promise<ToolResult>;
+}
+
 // 工具调用请求
 export interface ToolCall {
   name: string;
   input: Record<string, unknown>;
 }
 
+// 支持的 Provider 类型
+export type ProviderType = 'anthropic' | 'deepseek';
+
 // Agent 配置
 export interface AgentConfig {
+  provider: ProviderType;
   apiKey: string;
   model: string;
   maxTokens: number;
@@ -43,3 +51,40 @@ export interface ConversationContext {
   messages: Message[];
   workingDirectory: string;
 }
+
+// 将自定义 Tool 转换为 Vercel AI SDK 的 zod schema
+export function buildZodSchema(parameters: Record<string, ToolParameter>): z.ZodObject<Record<string, z.ZodTypeAny>> {
+  const schemaObj: Record<string, z.ZodTypeAny> = {};
+
+  for (const [key, param] of Object.entries(parameters)) {
+    let fieldSchema: z.ZodTypeAny;
+
+    switch (param.type) {
+      case 'string':
+        fieldSchema = z.string().describe(param.description);
+        break;
+      case 'number':
+        fieldSchema = z.number().describe(param.description);
+        break;
+      case 'boolean':
+        fieldSchema = z.boolean().describe(param.description);
+        break;
+      case 'array':
+        fieldSchema = z.array(z.unknown()).describe(param.description);
+        break;
+      case 'object':
+        fieldSchema = z.record(z.string(), z.unknown()).describe(param.description);
+        break;
+      default:
+        fieldSchema = z.unknown().describe(param.description);
+    }
+
+    if (!param.required) {
+      fieldSchema = fieldSchema.optional();
+    }
+
+    schemaObj[key] = fieldSchema;
+  }
+
+  return z.object(schemaObj);
+}

src/utils/config.ts

@@ -1,17 +1,25 @@
 import * as fs from 'fs';
 import * as path from 'path';
 import * as os from 'os';
-import type { AgentConfig } from '../types/index.js';
+import type { AgentConfig, ProviderType } from '../types/index.js';
 
 const CONFIG_DIR = path.join(os.homedir(), '.ai-terminal-assistant');
 const CONFIG_FILE = path.join(CONFIG_DIR, 'config.json');
 
 interface StoredConfig {
+  provider?: ProviderType;
   apiKey?: string;
+  deepseekApiKey?: string;
   model?: string;
   maxTokens?: number;
 }
 
+// 默认模型配置
+const DEFAULT_MODELS: Record<ProviderType, string> = {
+  anthropic: 'claude-sonnet-4-20250514',
+  deepseek: 'deepseek-chat',
+};
+
 // 默认系统提示词
 const DEFAULT_SYSTEM_PROMPT = `你是一个运行在终端中的 AI 编程助手。你可以帮助用户：
 - 读取和写入文件
@@ -29,12 +37,14 @@ const DEFAULT_SYSTEM_PROMPT = `你是一个运行在终端中的 AI 编程助手
 
 // 加载配置
 export function loadConfig(): AgentConfig {
-  // 优先从环境变量获取
+  // 从环境变量获取
-  const apiKey = process.env.ANTHROPIC_API_KEY;
+  const provider = (process.env.AI_PROVIDER as ProviderType) || 'anthropic';
-  const model = process.env.AI_MODEL || 'claude-sonnet-4-20250514';
+  const anthropicApiKey = process.env.ANTHROPIC_API_KEY;
+  const deepseekApiKey = process.env.DEEPSEEK_API_KEY;
+  const model = process.env.AI_MODEL;
   const maxTokens = parseInt(process.env.AI_MAX_TOKENS || '4096', 10);
 
-  // 如果环境变量没有，尝试从配置文件读取
+  // 从配置文件读取
   let storedConfig: StoredConfig = {};
   if (fs.existsSync(CONFIG_FILE)) {
     try {
@@ -45,18 +55,32 @@ export function loadConfig(): AgentConfig {
     }
   }
 
-  const finalApiKey = apiKey || storedConfig.apiKey;
+  // 确定最终的 provider
+  const finalProvider = storedConfig.provider || provider;
+
+  // 根据 provider 获取对应的 API Key
+  let finalApiKey: string | undefined;
+  if (finalProvider === 'anthropic') {
+    finalApiKey = anthropicApiKey || storedConfig.apiKey;
+  } else if (finalProvider === 'deepseek') {
+    finalApiKey = deepseekApiKey || storedConfig.deepseekApiKey;
+  }
 
   if (!finalApiKey) {
-    console.error('❌ 错误: 未设置 ANTHROPIC_API_KEY');
+    const envVar = finalProvider === 'anthropic' ? 'ANTHROPIC_API_KEY' : 'DEEPSEEK_API_KEY';
-    console.error('请设置环境变量: export ANTHROPIC_API_KEY=your-api-key');
+    console.error(`❌ 错误: 未设置 ${envVar}`);
-    console.error('或运行: ai-assist --init 进行初始化配置');
+    console.error(`请设置环境变量: export ${envVar}=your-api-key`);
+    console.error('或运行: ai-assist init 进行初始化配置');
     process.exit(1);
   }
 
+  // 确定模型
+  const finalModel = model || storedConfig.model || DEFAULT_MODELS[finalProvider];
+
   return {
+    provider: finalProvider,
     apiKey: finalApiKey,
-    model: storedConfig.model || model,
+    model: finalModel,
     maxTokens: storedConfig.maxTokens || maxTokens,
     systemPrompt: DEFAULT_SYSTEM_PROMPT,
   };
@@ -91,24 +115,52 @@ export async function initConfig(): Promise<void> {
 
   console.log('\n🔧 初始化 AI Terminal Assistant 配置\n');
 
+  // 选择 provider
+  const { provider } = await inquirer.prompt([
+    {
+      type: 'list',
+      name: 'provider',
+      message: '选择 AI 服务商:',
+      choices: [
+        { name: 'Anthropic (Claude)', value: 'anthropic' },
+        { name: 'DeepSeek', value: 'deepseek' },
+      ],
+      default: 'anthropic',
+    },
+  ]);
+
+  // 根据 provider 显示不同的模型选项
+  const modelChoices =
+    provider === 'anthropic'
+      ? [
+          { name: 'Claude Sonnet 4 (推荐，平衡性能和成本)', value: 'claude-sonnet-4-20250514' },
+          { name: 'Claude Opus 4 (最强，成本较高)', value: 'claude-opus-4-20250514' },
+          { name: 'Claude 3.5 Haiku (快速，成本低)', value: 'claude-3-5-haiku-20241022' },
+        ]
+      : [
+          { name: 'DeepSeek Chat (推荐)', value: 'deepseek-chat' },
+          { name: 'DeepSeek Reasoner (推理增强)', value: 'deepseek-reasoner' },
+        ];
+
+  const apiKeyField = provider === 'anthropic' ? 'apiKey' : 'deepseekApiKey';
+  const apiKeyMessage =
+    provider === 'anthropic'
+      ? '请输入你的 Anthropic API Key:'
+      : '请输入你的 DeepSeek API Key:';
+
   const answers = await inquirer.prompt([
     {
       type: 'password',
-      name: 'apiKey',
+      name: apiKeyField,
-      message: '请输入你的 Anthropic API Key:',
+      message: apiKeyMessage,
-      validate: (input: string) =>
+      validate: (input: string) => input.length > 0 || 'API Key 不能为空',
-        input.length > 0 || 'API Key 不能为空',
     },
     {
       type: 'list',
       name: 'model',
       message: '选择默认模型:',
-      choices: [
+      choices: modelChoices,
-        { name: 'Claude Sonnet 4 (推荐，平衡性能和成本)', value: 'claude-sonnet-4-20250514' },
+      default: DEFAULT_MODELS[provider as ProviderType],
-        { name: 'Claude Opus 4 (最强，成本较高)', value: 'claude-opus-4-20250514' },
-        { name: 'Claude 3.5 Haiku (快速，成本低)', value: 'claude-3-5-haiku-20241022' },
-      ],
-      default: 'claude-sonnet-4-20250514',
     },
     {
       type: 'number',
@@ -118,7 +170,7 @@ export async function initConfig(): Promise<void> {
     },
   ]);
 
-  saveConfig(answers);
+  saveConfig({ provider, ...answers });
   console.log('\n✅ 配置已保存到', CONFIG_FILE);
   console.log('现在可以运行 ai-assist 开始使用了！\n');
 }