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Claude Code tutorials

Published weekly. Each piece takes 3–6 hours because the examples are real and the code actually runs.

$ claude --resume session_abc
> find bugs in src/api/*.ts
✓ Found 3 issues in payment.ts
✓ Wrote fix plan to /tmp/plan.md
# review before applying...
Claude Code Features Apr 06, 2026

The Best Way to Get Claude Code to Find and Fix Its Own Bugs

Have you ever heard someone say they need a second set of eyes on something? I did that just last week at work. I was...

# Synchronous API:
curl -X POST .../messages
  → $0.003 / request
# Batches API:
curl -X POST .../batches
  → $0.0015 / request (50% off)
Claude Code Features Apr 02, 2026

How to Use the Claude Message Batches API (And When Not To)

Claude API offers a Message Batches API that costs 50% less than typical API calls, and your manager is excited. But...

# .github/workflows/claude.yml
- run: claude -p "review this PR"
    --output-format json \
    --permission-mode auto
✓ CI pipeline: 47s
Claude Code Features Mar 28, 2026

How to Integrate Claude Code into CI/CD Pipelines

You have AI, BI, and CI/CD. I'm going to give up technology and buy a farm with some EIEIO. Ancient 6502...

$ claude "show me when-to-use-plan-mode-in-claud"
→ Full tutorial inside...
Claude Code Features Mar 26, 2026

When to Use Plan Mode in Claude Code (And When to Skip It)

If you fail to plan, don't expect the execution to go so well either. Ancient 6502 Proverb When I first started...

$ claude "show me how-to-use-path-specific-rules"
→ Full tutorial inside...
Claude Code Features Mar 24, 2026

How to Use Path-Specific Rules in Claude Code with YAML Frontmatter

I admit, I didn't use source control for one of my first projects. And there was no way for me to know which Python...

$ claude "show me what-is-anthropic-s-claude-cer"
→ Full tutorial inside...
Mar 20, 2026

Claude Certified Architect Exam: Format, Domains, Cost, and How to Prepare

I've had three cups of Java, and I still don't understand objectoriented programming! — Me, probably in the...

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