使用 GitHub Copilot SDK 建構代理型應用程式。適用於在應用程式中嵌入 AI 代理、建立自訂工具、實作串流回應、管理工作階段、連線至 MCP 伺服器或建立自訂代理。觸發條件:Copilot SDK、GitHub SDK、代理型應用程式、嵌入 Copilot、可程式化代理、MCP 伺服器、自訂代理。
GitHub Copilot SDK
在任何應用程式中嵌入 Copilot 的代理工作流程,支援 Python、TypeScript、Go 或 .NET。
概覽
GitHub Copilot SDK 公開了 Copilot CLI 背後的相同引擎:一個經過生產測試的代理執行環境,您可以透過程式方式呼叫。無需自行建構編排邏輯——您定義代理行為,Copilot 負責規劃、工具呼叫、檔案編輯等。
先決條件
- 安裝並驗證 GitHub Copilot CLI(安裝指南)
- 語言執行環境:Node.js 18+、Python 3.8+、Go 1.21+ 或 .NET 8.0+
驗證 CLI:copilot --version
安裝
Node.js/TypeScript
mkdir copilot-demo && cd copilot-demo
npm init -y --init-type module
npm install @github/copilot-sdk tsx
Python
pip install github-copilot-sdk
Go
mkdir copilot-demo && cd copilot-demo
go mod init copilot-demo
go get github.com/github/copilot-sdk/go
.NET
dotnet new console -n CopilotDemo && cd CopilotDemo
dotnet add package GitHub.Copilot.SDK
快速開始
TypeScript
import { CopilotClient, approveAll } from "@github/copilot-sdk";
const client = new CopilotClient();
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
});
const response = await session.sendAndWait({ prompt: "What is 2 + 2?" });
console.log(response?.data.content);
await client.stop();
process.exit(0);
執行:npx tsx index.ts
Python
import asyncio
from copilot import CopilotClient, PermissionHandler
async def main():
client = CopilotClient()
await client.start()
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
})
response = await session.send_and_wait({"prompt": "What is 2 + 2?"})
print(response.data.content)
await client.stop()
asyncio.run(main())
Go
package main
import (
"fmt"
"log"
"os"
copilot "github.com/github/copilot-sdk/go"
)
func main() {
client := copilot.NewClient(nil)
if err := client.Start(); err != nil {
log.Fatal(err)
}
defer client.Stop()
session, err := client.CreateSession(&copilot.SessionConfig{
OnPermissionRequest: copilot.PermissionHandler.ApproveAll,
Model: "gpt-4.1",
})
if err != nil {
log.Fatal(err)
}
response, err := session.SendAndWait(copilot.MessageOptions{Prompt: "What is 2 + 2?"}, 0)
if err != nil {
log.Fatal(err)
}
fmt.Println(*response.Data.Content)
os.Exit(0)
}
.NET (C#)
using GitHub.Copilot.SDK;
await using var client = new CopilotClient();
await using var session = await client.CreateSessionAsync(new SessionConfig
{
OnPermissionRequest = PermissionHandler.ApproveAll,
Model = "gpt-4.1",
});
var response = await session.SendAndWaitAsync(new MessageOptions { Prompt = "What is 2 + 2?" });
Console.WriteLine(response?.Data.Content);
執行:dotnet run
串流回應
啟用即時輸出以獲得更好的使用者體驗:
TypeScript
import { CopilotClient, approveAll, SessionEvent } from "@github/copilot-sdk";
const client = new CopilotClient();
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
streaming: true,
});
session.on((event: SessionEvent) => {
if (event.type === "assistant.message_delta") {
process.stdout.write(event.data.deltaContent);
}
if (event.type === "session.idle") {
console.log(); // New line when done
}
});
await session.sendAndWait({ prompt: "Tell me a short joke" });
await client.stop();
process.exit(0);
Python
import asyncio
import sys
from copilot import CopilotClient, PermissionHandler
from copilot.generated.session_events import SessionEventType
async def main():
client = CopilotClient()
await client.start()
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
"streaming": True,
})
def handle_event(event):
if event.type == SessionEventType.ASSISTANT_MESSAGE_DELTA:
sys.stdout.write(event.data.delta_content)
sys.stdout.flush()
if event.type == SessionEventType.SESSION_IDLE:
print()
session.on(handle_event)
await session.send_and_wait({"prompt": "Tell me a short joke"})
await client.stop()
asyncio.run(main())
Go
session, err := client.CreateSession(&copilot.SessionConfig{
OnPermissionRequest: copilot.PermissionHandler.ApproveAll,
Model: "gpt-4.1",
Streaming: true,
})
session.On(func(event copilot.SessionEvent) {
if event.Type == "assistant.message_delta" {
fmt.Print(*event.Data.DeltaContent)
}
if event.Type == "session.idle" {
fmt.Println()
}
})
_, err = session.SendAndWait(copilot.MessageOptions{Prompt: "Tell me a short joke"}, 0)
.NET
await using var session = await client.CreateSessionAsync(new SessionConfig
{
OnPermissionRequest = PermissionHandler.ApproveAll,
Model = "gpt-4.1",
Streaming = true,
});
session.On(ev =>
{
if (ev is AssistantMessageDeltaEvent deltaEvent)
Console.Write(deltaEvent.Data.DeltaContent);
if (ev is SessionIdleEvent)
Console.WriteLine();
});
await session.SendAndWaitAsync(new MessageOptions { Prompt = "Tell me a short joke" });
自訂工具
定義 Copilot 在推理過程中可以呼叫的工具。當您定義工具時,您告訴 Copilot:
- 工具的功能(描述)
- 需要的參數(結構)
- 要執行的程式碼(處理器)
TypeScript (JSON Schema)
import { CopilotClient, approveAll, defineTool, SessionEvent } from "@github/copilot-sdk";
const getWeather = defineTool("get_weather", {
description: "Get the current weather for a city",
parameters: {
type: "object",
properties: {
city: { type: "string", description: "The city name" },
},
required: ["city"],
},
handler: async (args: { city: string }) => {
const { city } = args;
// In a real app, call a weather API here
const conditions = ["sunny", "cloudy", "rainy", "partly cloudy"];
const temp = Math.floor(Math.random() * 30) + 50;
const condition = conditions[Math.floor(Math.random() * conditions.length)];
return { city, temperature: `${temp}°F`, condition };
},
});
const client = new CopilotClient();
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
streaming: true,
tools: [getWeather],
});
session.on((event: SessionEvent) => {
if (event.type === "assistant.message_delta") {
process.stdout.write(event.data.deltaContent);
}
});
await session.sendAndWait({
prompt: "What's the weather like in Seattle and Tokyo?",
});
await client.stop();
process.exit(0);
Python (Pydantic)
import asyncio
import random
import sys
from copilot import CopilotClient, PermissionHandler
from copilot.tools import define_tool
from copilot.generated.session_events import SessionEventType
from pydantic import BaseModel, Field
class GetWeatherParams(BaseModel):
city: str = Field(description="The name of the city to get weather for")
@define_tool(description="Get the current weather for a city")
async def get_weather(params: GetWeatherParams) -> dict:
city = params.city
conditions = ["sunny", "cloudy", "rainy", "partly cloudy"]
temp = random.randint(50, 80)
condition = random.choice(conditions)
return {"city": city, "temperature": f"{temp}°F", "condition": condition}
async def main():
client = CopilotClient()
await client.start()
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
"streaming": True,
"tools": [get_weather],
})
def handle_event(event):
if event.type == SessionEventType.ASSISTANT_MESSAGE_DELTA:
sys.stdout.write(event.data.delta_content)
sys.stdout.flush()
session.on(handle_event)
await session.send_and_wait({
"prompt": "What's the weather like in Seattle and Tokyo?"
})
await client.stop()
asyncio.run(main())
Go
type WeatherParams struct {
City string `json:"city" jsonschema:"The city name"`
}
type WeatherResult struct {
City string `json:"city"`
Temperature string `json:"temperature"`
Condition string `json:"condition"`
}
getWeather := copilot.DefineTool(
"get_weather",
"Get the current weather for a city",
func(params WeatherParams, inv copilot.ToolInvocation) (WeatherResult, error) {
conditions := []string{"sunny", "cloudy", "rainy", "partly cloudy"}
temp := rand.Intn(30) + 50
condition := conditions[rand.Intn(len(conditions))]
return WeatherResult{
City: params.City,
Temperature: fmt.Sprintf("%d°F", temp),
Condition: condition,
}, nil
},
)
session, _ := client.CreateSession(&copilot.SessionConfig{
OnPermissionRequest: copilot.PermissionHandler.ApproveAll,
Model: "gpt-4.1",
Streaming: true,
Tools: []copilot.Tool{getWeather},
})
.NET (Microsoft.Extensions.AI)
using GitHub.Copilot.SDK;
using Microsoft.Extensions.AI;
using System.ComponentModel;
var getWeather = AIFunctionFactory.Create(
([Description("The city name")] string city) =>
{
var conditions = new[] { "sunny", "cloudy", "rainy", "partly cloudy" };
var temp = Random.Shared.Next(50, 80);
var condition = conditions[Random.Shared.Next(conditions.Length)];
return new { city, temperature = $"{temp}°F", condition };
},
"get_weather",
"Get the current weather for a city"
);
await using var session = await client.CreateSessionAsync(new SessionConfig
{
OnPermissionRequest = PermissionHandler.ApproveAll,
Model = "gpt-4.1",
Streaming = true,
Tools = [getWeather],
});
工具運作方式
當 Copilot 決定呼叫您的工具時:
- Copilot 發送工具呼叫請求,包含參數
- SDK 執行您的處理器函式
- 結果回傳給 Copilot
- Copilot 將結果納入回應中
Copilot 會根據使用者的問題和工具的描述,決定何時呼叫您的工具。
互動式 CLI 助手
建立完整的互動式助手:
TypeScript
import { CopilotClient, approveAll, defineTool, SessionEvent } from "@github/copilot-sdk";
import * as readline from "readline";
const getWeather = defineTool("get_weather", {
description: "Get the current weather for a city",
parameters: {
type: "object",
properties: {
city: { type: "string", description: "The city name" },
},
required: ["city"],
},
handler: async ({ city }) => {
const conditions = ["sunny", "cloudy", "rainy", "partly cloudy"];
const temp = Math.floor(Math.random() * 30) + 50;
const condition = conditions[Math.floor(Math.random() * conditions.length)];
return { city, temperature: `${temp}°F`, condition };
},
});
const client = new CopilotClient();
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
streaming: true,
tools: [getWeather],
});
session.on((event: SessionEvent) => {
if (event.type === "assistant.message_delta") {
process.stdout.write(event.data.deltaContent);
}
});
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
console.log("Weather Assistant (type 'exit' to quit)");
console.log("Try: 'What's the weather in Paris?'\n");
const prompt = () => {
rl.question("You: ", async (input) => {
if (input.toLowerCase() === "exit") {
await client.stop();
rl.close();
return;
}
process.stdout.write("Assistant: ");
await session.sendAndWait({ prompt: input });
console.log("\n");
prompt();
});
};
prompt();
Python
import asyncio
import random
import sys
from copilot import CopilotClient, PermissionHandler
from copilot.tools import define_tool
from copilot.generated.session_events import SessionEventType
from pydantic import BaseModel, Field
class GetWeatherParams(BaseModel):
city: str = Field(description="The name of the city to get weather for")
@define_tool(description="Get the current weather for a city")
async def get_weather(params: GetWeatherParams) -> dict:
conditions = ["sunny", "cloudy", "rainy", "partly cloudy"]
temp = random.randint(50, 80)
condition = random.choice(conditions)
return {"city": params.city, "temperature": f"{temp}°F", "condition": condition}
async def main():
client = CopilotClient()
await client.start()
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
"streaming": True,
"tools": [get_weather],
})
def handle_event(event):
if event.type == SessionEventType.ASSISTANT_MESSAGE_DELTA:
sys.stdout.write(event.data.delta_content)
sys.stdout.flush()
session.on(handle_event)
print("Weather Assistant (type 'exit' to quit)")
print("Try: 'What's the weather in Paris?'\n")
while True:
try:
user_input = input("You: ")
except EOFError:
break
if user_input.lower() == "exit":
break
sys.stdout.write("Assistant: ")
await session.send_and_wait({"prompt": user_input})
print("\n")
await client.stop()
asyncio.run(main())
MCP 伺服器整合
連線至 MCP(模型上下文協定)伺服器以使用預建工具。連線至 GitHub 的 MCP 伺服器以存取儲存庫、議題和 PR:
TypeScript
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
mcpServers: {
github: {
type: "http",
url: "https://api.githubcopilot.com/mcp/",
},
},
});
Python
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
"mcp_servers": {
"github": {
"type": "http",
"url": "https://api.githubcopilot.com/mcp/",
},
},
})
Go
session, _ := client.CreateSession(&copilot.SessionConfig{
OnPermissionRequest: copilot.PermissionHandler.ApproveAll,
Model: "gpt-4.1",
MCPServers: map[string]copilot.MCPServerConfig{
"github": {
"type": "http",
"url": "https://api.githubcopilot.com/mcp/",
},
},
})
.NET
await using var session = await client.CreateSessionAsync(new SessionConfig
{
OnPermissionRequest = PermissionHandler.ApproveAll,
Model = "gpt-4.1",
McpServers = new Dictionary<string, McpServerConfig>
{
["github"] = new McpServerConfig
{
Type = "http",
Url = "https://api.githubcopilot.com/mcp/",
},
},
});
自訂代理
為特定任務定義專門的 AI 角色:
TypeScript
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
customAgents: [{
name: "pr-reviewer",
displayName: "PR Reviewer",
description: "Reviews pull requests for best practices",
prompt: "You are an expert code reviewer. Focus on security, performance, and maintainability.",
}],
});
Python
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
"custom_agents": [{
"name": "pr-reviewer",
"display_name": "PR Reviewer",
"description": "Reviews pull requests for best practices",
"prompt": "You are an expert code reviewer. Focus on security, performance, and maintainability.",
}],
})
系統訊息
自訂 AI 的行為和個性:
TypeScript
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
systemMessage: {
content: "You are a helpful assistant for our engineering team. Always be concise.",
},
});
Python
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
"system_message": {
"content": "You are a helpful assistant for our engineering team. Always be concise.",
},
})
外部 CLI 伺服器
將 CLI 以伺服器模式單獨執行,並將 SDK 連線至該伺服器。適用於除錯、資源共享或自訂環境。
以伺服器模式啟動 CLI
copilot --server --port 4321
將 SDK 連線至外部伺服器
TypeScript
const client = new CopilotClient({
cliUrl: "localhost:4321"
});
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
});
Python
client = CopilotClient({
"cli_url": "localhost:4321"
})
await client.start()
session = await client.create_session({
"on_permission_request": PermissionHandler.approve_all,
"model": "gpt-4.1",
})
Go
client := copilot.NewClient(&copilot.ClientOptions{
CLIUrl: "localhost:4321",
})
if err := client.Start(); err != nil {
log.Fatal(err)
}
session, _ := client.CreateSession(&copilot.SessionConfig{
OnPermissionRequest: copilot.PermissionHandler.ApproveAll,
Model: "gpt-4.1",
})
.NET
using var client = new CopilotClient(new CopilotClientOptions
{
CliUrl = "localhost:4321"
});
await using var session = await client.CreateSessionAsync(new SessionConfig
{
OnPermissionRequest = PermissionHandler.ApproveAll,
Model = "gpt-4.1",
});
注意: 當提供 cliUrl 時,SDK 不會啟動或管理 CLI 程序——它只會連線至現有的伺服器。
事件類型
| 事件 | 描述 |
|---|---|
user.message |
使用者輸入已新增 |
assistant.message |
完整的模型回應 |
assistant.message_delta |
串流回應區塊 |
assistant.reasoning |
模型推理(依模型而定) |
assistant.reasoning_delta |
串流推理區塊 |
tool.execution_start |
工具呼叫已開始 |
tool.execution_complete |
工具執行已完成 |
session.idle |
無進行中的處理 |
session.error |
發生錯誤 |
用戶端設定
| 選項 | 描述 | 預設值 |
|---|---|---|
cliPath |
Copilot CLI 可執行檔的路徑 | 系統 PATH |
cliUrl |
連線至現有伺服器(例如 "localhost:4321") | 無 |
port |
伺服器通訊埠 | 隨機 |
useStdio |
使用 stdio 傳輸而非 TCP | true |
logLevel |
記錄詳細程度 | "info" |
autoStart |
自動啟動伺服器 | true |
autoRestart |
當機時自動重新啟動 | true |
cwd |
CLI 程序的工作目錄 | 繼承 |
工作階段設定
| 選項 | 描述 |
|---|---|
model |
使用的 LLM("gpt-4.1"、"claude-sonnet-4.5" 等) |
sessionId |
自訂工作階段識別碼 |
tools |
自訂工具定義 |
mcpServers |
MCP 伺服器連線 |
customAgents |
自訂代理角色 |
systemMessage |
覆寫預設系統提示 |
streaming |
啟用增量回應區塊 |
availableTools |
允許的工具白名單 |
excludedTools |
停用的工具黑名單 |
工作階段持久化
在重新啟動之間儲存和恢復對話:
使用自訂 ID 建立
const session = await client.createSession({
onPermissionRequest: approveAll,
sessionId: "user-123-conversation",
model: "gpt-4.1"
});
恢復工作階段
const session = await client.resumeSession("user-123-conversation", { onPermissionRequest: approveAll });
await session.send({ prompt: "What did we discuss earlier?" });
列出和刪除工作階段
const sessions = await client.listSessions();
await client.deleteSession("old-session-id");
錯誤處理
try {
const client = new CopilotClient();
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
});
const response = await session.sendAndWait(
{ prompt: "Hello!" },
30000 // timeout in ms
);
} catch (error) {
if (error.code === "ENOENT") {
console.error("Copilot CLI not installed");
} else if (error.code === "ECONNREFUSED") {
console.error("Cannot connect to Copilot server");
} else {
console.error("Error:", error.message);
}
} finally {
await client.stop();
}
優雅關閉
process.on("SIGINT", async () => {
console.log("Shutting down...");
await client.stop();
process.exit(0);
});
常見模式
多輪對話
const session = await client.createSession({
onPermissionRequest: approveAll,
model: "gpt-4.1",
});
await session.sendAndWait({ prompt: "My name is Alice" });
await session.sendAndWait({ prompt: "What's my name?" });
// Response: "Your name is Alice"
檔案附件
await session.send({
prompt: "Analyze this file",
attachments: [{
type: "file",
path: "./data.csv",
displayName: "Sales Data"
}]
});
中止長時間操作
const timeoutId = setTimeout(() => {
session.abort();
}, 60000);
session.on((event) => {
if (event.type === "session.idle") {
clearTimeout(timeoutId);
}
});
可用模型
在執行時查詢可用模型:
const models = await client.getModels();
// Returns: ["gpt-4.1", "gpt-4o", "claude-sonnet-4.5", ...]
最佳實踐
- 務必清理:使用
try-finally或defer確保client.stop()被呼叫 - 設定逾時:對長時間操作使用
sendAndWait搭配逾時 - 處理事件:訂閱錯誤事件以實現穩健的錯誤處理
- 使用串流:啟用串流以獲得長時間回應的更好使用者體驗
- 持久化工作階段:對多輪對話使用自訂工作階段 ID
- 定義清晰工具:撰寫描述性的工具名稱和描述
架構
您的應用程式
|
SDK 用戶端
| JSON-RPC
Copilot CLI(伺服器模式)
|
GitHub(模型、驗證)
SDK 會自動管理 CLI 程序的生命週期。所有通訊透過 JSON-RPC 經由 stdio 或 TCP 進行。
資源
- GitHub 儲存庫:https://github.com/github/copilot-sdk
- 入門教學:https://github.com/github/copilot-sdk/blob/main/docs/tutorials/first-app.md
- GitHub MCP 伺服器:https://github.com/github/github-mcp-server
- MCP 伺服器目錄:https://github.com/modelcontextprotocol/servers
- 食譜:https://github.com/github/copilot-sdk/tree/main/cookbook
- 範例:https://github.com/github/copilot-sdk/tree/main/samples
狀態
此 SDK 處於技術預覽階段,可能會有重大變更。目前不建議用於生產環境。






