Part 5: Design Your System
The Big Picture
You've learned what Claude Code is, how it sees your project, how to instruct it, and how to automate workflows. Now it's time to think bigger.
This lesson teaches you how to design an AI development system that scales — from your personal projects to your entire team.
Sub-Agents — Your AI Team
Claude Code can spawn sub-agents — smaller, focused AI workers that handle specific parts of a larger task. Instead of doing everything sequentially, it delegates to specialists that work in parallel.
How Sub-Agents Work
YOU
Give Claude Code a big task
Claude Code
Breaks it into parts and assigns sub-agents
Sub-Agent 1
Research
Reads documentation, checks competitors
Sub-Agent 2
Build
Writes the actual code
Sub-Agent 3
Test
Runs tests, verifies everything works
Results come back to Claude Code
Assembles the final output
Think of It This Way
It's like having a project manager who automatically delegates to specialists. You describe the end result. Claude Code figures out the team structure.
Real Example
→ Claude Code spawns a research agent, a builder agent, and a test agent. They work in parallel. You get a finished page.
Plan Mode — Think Before Building
For complex tasks, Claude Code can enter “plan mode” — where it designs the approach before writing any code.
Read & Analyze
It reads your codebase and identifies the files that need to change.
Present the Plan
It presents a plan for your approval — what it will change, in what order, and why.
Review & Give Feedback
You review the plan, give feedback, adjust the scope.
Execute
THEN it executes. This prevents the “it changed 50 files and broke everything” problem.
Just Do It (Direct Execution)
- Simple text changes
- Adding a section to an existing page
- Fixing obvious bugs
- Running deployments
Use Plan Mode
- Building new features from scratch
- Refactoring existing code
- Changes that affect multiple files
- Anything you'd want to review before it happens
When to Use What
The best system isn't using one AI tool for everything. It's knowing which tool to reach for based on the task.
| Task | Best Tool | Why |
|---|---|---|
| Quick content edit | Claude Code (direct) | Fastest path to done |
| New landing page | Claude Code (plan mode) | Needs architecture review |
| Brainstorm campaign ideas | Claude web / ChatGPT | Pure ideation, no files needed |
| Research competitors | Claude web or Claude Code | Depends if you need to build something with the findings |
| Complex multi-page feature | Claude Code (sub-agents) | Needs parallel work streams |
| Writing email copy | Claude web | No codebase interaction needed |
| Deploying changes | Claude Code | It knows your deploy process |
Key Insight
The best system isn't using one AI tool for everything. It's knowing which tool to reach for based on the task.
Your First Week Plan
Five days to go from beginner to confident Claude Code user:
Day 1: Explore
Install Claude Code and run it on your main project. Ask it to explain the codebase.
Day 2: Configure
Write your first CLAUDE.md with project rules, brand guidelines, and conventions.
Day 3: Build
Make 3 real changes — a copy edit, a new section, and a bug fix. Get comfortable with the workflow.
Day 4: Chain
Try a multi-step workflow: create a new page, add navigation, deploy. All in one instruction.
Day 5: Scale
Identify your 3 most repeated tasks and discuss with your dev team how to turn them into skills.
What You've Learned Across All 5 Lessons
The complete BUILD framework — your system for working with Claude Code:
Boot Up
Claude Code is a terminal-based AI agent that reads your files, edits code, and takes real action. Not a chat window — a builder.
Understand Your Workspace
CLAUDE.md is the single most important file. Better context = better output. Always.
Instruct with Intent
Specific beats vague. Use @ references, slash commands, and the 5 prompting patterns (Scout, Surgeon, Builder, Reviewer, Debugger).
Leverage Automation
Memory remembers, hooks protect, workflows multiply your productivity. Custom skills turn repeated work into one-command shortcuts.
Design Your System
Sub-agents for parallel work, plan mode for complex tasks, and knowing when to use Claude Code vs. other AI tools.
- Use Claude Code effectively
- Give it instructions that actually work
- Automate repetitive tasks
- Build a personal AI development system that scales
You're now equipped to: use Claude Code effectively, give it instructions that actually work, automate repetitive tasks, and build a personal AI development system that scales.