启动、交互模式与基本命令

# 进入项目目录后启动交互式会话
cd my-project
claude

# 启动并立即执行指定任务
claude "explain the authentication flow in this project"

# 启动并请求代码审查
claude "review the recent changes in src/ for security issues"

# 继续当前目录下最近的会话
claude -c

# 恢复指定名称的会话
claude -r "my-feature-work"

# 恢复与某个 PR 关联的会话
claude --from-pr 42

# 管道输入：分析日志文件
cat error.log | claude -p "what caused this crash?"

# Git diff 审查
git diff main | claude -p "review for security issues"

# 生成结构化输出
claude -p "list all TODO comments" --output-format json

# 设置预算上限，防止 CI 中失控消费
claude -p "run lint check" --max-budget-usd 2.00

echo 'export CLAUDE_CODE_NO_FLICKER=1' >> ~/.zshrc

╭────────────────────────────────────────────────────────────╮
│  Claude Code v2.1.x                                       │
│  Model: claude-sonnet-4-6  |  Effort: medium              │
│  Project: /Users/you/my-project                           │
│  Git: main (clean)                                        │
│                                                            │
│  Recent conversations:                                     │
│  • auth-refactor      (2h ago, 12 messages)               │
│  • fix-login-bug      (5h ago, 8 messages)                │
│  • docs-update        (1d ago, 15 messages)               │
│                                                            │
│  Type /help for commands  |  /resume to continue          │
╰────────────────────────────────────────────────────────────╯

claude>

┌────────────────────────────────────────────────────────────┐
│  Update available: v2.1.118 → v2.1.120                     │
│  Run `claude update` to install                            │
└────────────────────────────────────────────────────────────┘

claude> Add rate limiting to the /api/auth endpoints

I'll analyze the current auth endpoints and add rate limiting. Let me start by 
examining the relevant files.

○ Read(13) src/api/auth.ts
○ Read(5) src/middleware/

I found the auth endpoints. I'll use express-rate-limit to add rate limiting. 
Let me check if it's already a dependency.

○ Bash(1) grep -r "rate-limit" package.json

It's not installed. Here's my plan:

1. Install express-rate-limit
2. Create a rate limiter middleware in src/middleware/rateLimiter.ts
3. Apply it to the auth routes in src/api/auth.ts

May I proceed with these changes? (Y/n)

claude> !npm test

> my-project@1.0.0 test
> jest

 PASS  src/utils/auth.test.ts
 PASS  src/api/users.test.ts

Test Suites: 2 passed, 2 total

claude> /compact Focus on the auth module changes

claude> /model opus
# 切换到 Opus 模型处理复杂架构问题

claude> /effort xhigh
# 设置最高推理深度（Opus 4.7 默认即为 xhigh）

Session cost: $0.47
Plan usage: 12% of daily limit
Messages: 24
Tokens in: 45,200
Tokens out: 8,100

claude> /btw what was the name of that config file we edited earlier?

○ Bash(1) npm install express-rate-limit

Allow Claude to run this command? (Y/n/d/a)

Y - Yes (this time)
n - No (skip this command)
d - Don't ask again for similar commands
a - Always allow this pattern

# 以只读计划模式启动
claude --permission-mode plan

# 以自动模式启动
claude --permission-mode auto

{
  "permissions": {
    "allow": [
      "Read",
      "Bash(git *)",
      "Bash(npm run *)",
      "Bash(docker compose *)"
    ],
    "deny": [
      "Bash(rm -rf *)",
      "Bash(sudo *)"
    ]
  }
}

# 方式一：继续最近会话（最常用）
claude -c

# 方式二：按名称恢复特定会话
claude -r "auth-refactor"

# 方式三：在交互会话中切换
claude> /resume
# 打开交互式选择器，支持搜索、预览、重命名

# 启动时命名
claude -n "feature-oauth2"

# 会话中重命名
claude> /rename "bugfix-memory-leak"

This session is large. Resume from summary instead? (Y/n)

claude> Look at @src/auth.ts and fix the validation bug