curl -fsSL https://claude.ai/install.sh | bash

irm https://claude.ai/install.ps1 | iex

curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd

claude --version
claude update        # 更新到最新版

claude auth login             # Claude Pro/Max/Team 訂閱
claude auth login --console   # Anthropic Console（API 計費）
claude auth status            # 檢查登入狀態

cd /your/project     # 進入專案目錄
claude               # 啟動互動模式

# 在 Claude Code 互動模式中輸入：
這個專案做什麼？
資料夾結構是什麼？
主要進入點在哪裡？

在 main.py 加一個 hello world 的 API endpoint

/init    # 自動分析 codebase 生成 CLAUDE.md

claude mcp add --transport http notion https://mcp.notion.com/mcp

claude mcp add --transport sse asana https://mcp.asana.com/sse

claude mcp add --transport stdio airtable \
  -- npx -y airtable-mcp-server \
  --env AIRTABLE_API_KEY=YOUR_KEY

{
  "hooks": {
    "PostToolUse": [
      {
        "if": { "tool": "Edit" },
        "command": "prettier --write {filePath}"
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "if": { "tool": "Edit" },
        "command": "if echo {filePath} | grep -q '.env'; then echo 'BLOCKED: Cannot edit .env files' >&2; exit 1; fi"
      }
    ]
  }
}

{
  "hooks": {
    "Notification": [
      {
        "command": "osascript -e 'display notification \"{message}\" with title \"Claude Code\"'"
      }
    ]
  }
}

{
  "model": "claude-opus-4-6",
  "effortLevel": "medium",
  "defaultMode": "acceptEdits",
  "permissions": {
    "allow": ["Bash(git *)", "Read", "Edit"]
  },
  "autoMemoryEnabled": true
}

# 專案概述
這是一個 Express.js + PostgreSQL 的電商 API。

# 開發指令
- 安裝：`npm install`
- 啟動：`npm run dev`
- 測試：`npm test`

# 程式規範
- 使用 TypeScript
- 2 空格縮排
- 所有新功能必須寫測試
- API handlers 放在 `src/api/handlers/`

# 架構
- 資料庫：PostgreSQL + Prisma ORM
- 測試：Jest
- 部署：Vercel

/memory          # 查看與編輯記憶

.claude/skills/
├── commit.md          # /commit
├── review-pr.md       # /review-pr
├── deploy.md          # /deploy
└── healthcheck.md     # /healthcheck

---
name: deploy
description: Build, test, and deploy to production
---

Please perform the following deployment steps:

1. Run all tests: `npm test`
2. Build the project: `npm run build`
3. Check for TypeScript errors: `npx tsc --noEmit`
4. If all checks pass, deploy with: `vercel --prod`
5. Report the deployment URL

If any step fails, stop and report the error.

/deploy              # 執行 deploy skill
/review-pr 123       # 帶參數
/                    # 列出所有可用 skills

import anthropic

client = anthropic.Anthropic()
message = client.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[{"role": "user", "content": "分析這段程式碼的安全性"}]
)

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic();
const message = await client.messages.create({
  model: "claude-sonnet-4-20250514",
  max_tokens: 1024,
  messages: [{ role: "user", content: "寫一個測試" }]
});

name: Claude Code Review
on:
  pull_request:
    types: [opened, synchronize]

jobs:
  review:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install Claude Code
        run: curl -fsSL https://claude.ai/install.sh | bash
      - name: Review PR
        run: |
          claude -p "Review this PR's changes. Check for bugs, security issues, and suggest improvements." \
            --permission-mode dontAsk
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}

- name: Auto-fix lint errors
  run: |
    claude -p "Run linter, fix all errors, and commit the fixes" \
      --permission-mode dontAsk

- name: Generate PR description
  run: |
    claude -p "Analyze the diff and generate a detailed PR description in markdown" \
      --permission-mode dontAsk > pr-body.md

claude-review:
  stage: review
  script:
    - curl -fsSL https://claude.ai/install.sh | bash
    - claude -p "Review the MR changes" --permission-mode dontAsk
  only:
    - merge_requests

cd /path/to/project
claude
# 在互動模式中：
> 這個專案做什麼？用了哪些技術？
> 說明資料夾結構
> 哪裡是主要進入點？
> /init    # 自動生成 CLAUDE.md

claude
> 我遇到這個錯誤：[貼上完整錯誤訊息]
# Claude 會自動：搜尋相關程式碼 → 定位問題 → 修改 → 執行測試

claude --permission-mode plan
> 我要在使用者設定頁面加上深色模式切換
# Claude 先列出計畫 → 你確認 → 逐步實作
> /commit    # 自動生成 commit message
> 建立 PR

claude -p "review the changes in this PR and suggest improvements"
# 或在 GitHub PR 中 @claude 留言

claude
> 將 authentication module 從 callback 改為 async/await
> 順便補上 unit tests
> 確認所有 tests 都通過

# Terminal 1 — 獨立 worktree
claude -w feature-auth -n "auth"
> 實作 OAuth 登入

# Terminal 2 — 另一個 worktree
claude -w fix-ui -n "ui-fix"
> 修正首頁 RWD 問題

claude mcp add --transport http notion https://mcp.notion.com/mcp
claude
> 從 Notion 的 API 文件頁面讀取規格，然後實作對應的 endpoint

# 在 GitHub Actions 中
claude -p "run all tests and fix any failures" \
  --permission-mode dontAsk

1. 建立資料庫 schema
2. 寫 API endpoint
3. 做前端頁面
4. 補測試

/cost    # 查看目前 session 費用