Master Claude Code: From Installation to Advanced AI‑Powered Development Workflows

Claude Certified Architect (CCA) Certification

Anthropic offers the Claude Certified Architect (CCA) certification. The exam is 120 minutes, 60 questions, free for partner‑company employees and $99 for others. The syllabus is divided into five domains:

Agentic Architecture – 27 %

Tool Design + Model Context Protocol (MCP) – 18 %

Claude Code Configuration – 20 %

Prompt Engineering – 20 %

Context Management – 15 %

The exam tests deep knowledge of the Agent SDK, MCP error‑handling standards, and CI/CD integration, not just basic usage of Claude.

Claude Code Overview

Claude Code is a hands‑on development environment that lets you interact with Claude through a local CLI. It consists of three parts (the remaining two parts are released later):

Principles and quick‑start guide.

Integration with GitHub (domestic version).

Using Hooks and the SDK (domestic version).

How a Programming Assistant Works

When you ask the assistant to fix a bug, it follows three core steps:

Collect information – understand the error and which files are affected.

Form a plan – decide which code changes and tests are needed.

Execute – modify files and run commands.

Key point : Steps 1 and 3 require the assistant to interact with the external environment (read files, run commands, modify code).

Tool‑Use Mechanism

Claude can only process text, so it uses a tool‑use protocol . When you request an operation, the assistant inserts a directive such as ReadFile: main.go. Claude then reads the real file, returns its content to the model, and the model produces the final answer.

Full Workflow Example

You ask: "What does main.go contain?"

The assistant adds a tool‑use instruction.

The model replies with ReadFile: main.go.

Claude reads the file and sends the content back.

The model answers your question based on the file.

Principle : This mechanism makes Claude appear able to read files or run code, but it remains pure text generation.

Why Claude’s Tool Ability Matters

Claude’s Opus, Sonnet, and Haiku series excel at understanding tool specifications and performing complex tasks, giving them a decisive edge over other LLMs.

Claude Code Configuration

Follow the official quick‑start guide (https://code.claude.com/docs/en/quickstart) to install Claude Code locally.

Installation Steps

macOS (Homebrew) : brew install --cask claude-code macOS / Linux / WSL : curl -fsSL https://claude.ai/install.sh | bash Windows CMD :

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

Run claude in the terminal; the first run prompts for authentication.

Additional Configuration for Cloud Providers

If you want to use AWS Bedrock or Google Cloud Vertex, add the provider‑specific URLs from the official docs:

AWS Bedrock – see https://code.claude.com/docs/en/amazon-bedrock

Google Cloud Vertex – see https://code.claude.com/docs/en/google-vertex-ai

Project Setup Example

Ensure Node.js is installed.

Download and unzip uigen.zip from the resources.

Run npm run setup to install dependencies and create a local SQLite database.

Optionally provide an Anthropic API key (or a compatible model key) to enable full Claude integration.

Note : You can work with any codebase; the sample project is optional.

Context Management

Claude can handle projects with hundreds of files, but feeding it too much irrelevant context hurts performance. Use the /init command on a new project to let Claude analyze the repository and generate a CLAUDE.md summary that records purpose, architecture, key commands, and coding patterns.

The summary file can live in three locations: CLAUDE.md – generated by /init and committed to source control for team sharing. CLAUDE.local.md – personal, non‑shared instructions. ~/.claude/CLAUDE.md – global per‑machine directives.

You can add custom directives, use the # shortcut to enter memory mode, or reference files directly with @path/to/file in prompts.

Implementing Modifications

When Claude suggests a change, you can paste screenshots (Ctrl+V / Cmd+V) into the chat to give visual context. Use the Shift+Tab shortcut to enable “plan mode”, which makes Claude create a detailed implementation plan before applying changes. You can also switch to “think” modes (Think, Think more, Think a lot, Think longer, Ultrathink) to allocate more tokens for complex reasoning.

Dialogue Control Techniques

Press Escape to interrupt a stray response.

Use /compact to summarize the conversation while preserving key knowledge.

Use /clear to wipe the dialogue history when starting a completely new task.

Press Escape twice to roll back the conversation without affecting the file system.

Custom Commands

Claude Code supports slash commands. To create your own, add a .claude/commands folder and place markdown files named after the desired command (e.g., audit.md creates /audit). Commands can contain placeholders like $ARGUMENTS for dynamic input.

Example: Audit Command

请帮我执行以下操作：
1. 运行 `npm audit` 检查已安装包中的安全漏洞
2. 运行 `npm audit fix` 应用更新
3. 运行测试验证更新没有破坏任何功能

Parameterized Command Example

为以下内容编写全面的测试：$ARGUMENTS

测试规范：
* 使用 `Vitest` 和 `React Testing Library`
* 将测试文件放在 `__tests__` 文件夹中
* 文件命名为 `[filename].test.ts(x)`
* 使用 `@/` 前缀导入

覆盖范围：
* 正常路径
* 边界情况
* 错误状态

Extending Claude Code with MCP Servers

The Model Context Protocol (MCP) lets Claude interact with external services. A popular MCP server is Playwright, which gives Claude control over a web browser for UI‑centric tasks.

Installing Playwright MCP

claude mcp add playwright npx @playwright/mcp@latest

This registers a server named playwright and provides the command to launch it locally.

Using Playwright in a Workflow

Example prompt:

Navigate to `localhost:3000`, generate a basic component, review its style, then update @src/lib/prompts/generation.tsx to improve future component generation.

Claude will open the browser via the Playwright MCP, inspect the rendered component, and modify the prompt file accordingly.

Managing Permissions

First‑time MCP usage triggers permission requests. To pre‑approve, edit .claude/settings.local.json and add the server identifier to the allow array:

{
  "permissions": {
    "allow": ["mcp__playwright"],
    "deny": []
  }
}

Benefits of MCP Integration

Claude can see actual visual output (e.g., Tailwind styles) instead of only code, enabling smarter design suggestions such as warm sunset gradients, ocean‑depth palettes, asymmetric layouts, and unconventional spacing.

Exploring Other MCP Servers

Beyond Playwright, the MCP ecosystem includes servers for database interaction, API testing/monitoring, filesystem operations, cloud service integration, and development‑tool automation, turning Claude from a code assistant into a full‑stack development partner.