Digital Products

Sales ended — July 19, 2026. These products were written for the Claude 4-era toolchain. Rather than sell material that ages out of date, we've retired the whole line. The pages below stay up as an archive of what was built. All guides on this site remain free to read.

Not sure yet? Try free first: 30 prompts · cost calculator · case studies · all 16 free resources

What each product covered (archive)

If you're...	Start with	Price
Spending too much on Claude API ($1K+/mo)	P5: Cost Optimization Masterclass	$59
Using Claude Code daily, want better prompts	P1: Power Prompts 300	$29
Building production agents with the SDK	P2: Agent SDK Cookbook	$49
Want AI engines (Claude/ChatGPT) to cite your content	P3: AEO Playbook	$39
Solo dev figuring out the AI tool stack	P4: Solo AI Builder Stack	$19

Claude API Cost Optimization Masterclass

Best value

Cut your Claude API bill by 60–90% without sacrificing quality.

12 optimization scenarios analyzed. The concrete order-of-operations to pull the biggest levers first: prompt caching, model tiering, Batch API, token compression.

✓ PDF guide + 6-sheet Excel cost calculator
✓ Module 1: Prompt Caching — up to 90% savings
✓ Module 2: Model Tiering — Haiku vs Sonnet vs Opus
✓ Module 3: Batch API — 50% discount for async workloads
✓ Example scenario: $2,100 → $187/month on a customer support agent

Claude Code Power Prompts 300

300 battle-tested prompts. Copy, paste, ship.

Stop reinventing prompts every morning. Every prompt tested in production Claude Code sessions, organized by use case, with exact CLAUDE.md context and expected output.

✓ 300 copy-paste-ready prompts
✓ Organized: debugging, refactoring, testing, architecture, security
✓ 40 slash command templates
✓ Token-optimized variants (save up to 70% on API costs)
✓ JSONL file for direct Claude Code import
✓ 12 months of free updates

Claude Agent SDK Cookbook: 40 Production Patterns

New

The pattern library for agents that run unsupervised in production.

Not a getting-started guide. 40 battle-tested patterns for the Claude Agent SDK: retry logic, tool error recovery, parallel sub-agents, cost guardrails, deterministic testing. Python and TypeScript code throughout.

✓ PDF guide with complete, runnable code
✓ 40 production patterns with failure modes + recovery logic
✓ Multi-agent orchestration — supervisor patterns, agent handoffs
✓ Cost controls — model routing, caching, batch processing
✓ Real-world recipes: web scraping, code review, data pipeline agents

AEO Playbook: Rank in AI Answers (Claude, ChatGPT, Gemini)

New

Stop optimizing for Google. Start optimizing for the AI answer layer.

ChatGPT, Claude, and Gemini are the new search. This playbook is the complete system for getting cited, quoted, and recommended by AI engines — audit framework, content templates, and visibility tracking.

✓ PDF guide with step-by-step implementation guides
✓ AEO audit framework — diagnose why AI ignores your content
✓ Claude-specific optimization + ChatGPT & Gemini signals
✓ 12 content templates (copy-paste into your CMS)
✓ AEO audit checklist (Google Sheets compatible)

Solo AI Builder Stack

The operating system for building one AI product that makes money.

Not a productivity system. A 20-page PDF + Notion workspace template built from a real 12-month, 10M KRW AI monetization sprint. Budget model, marketing framework, distribution system.

✓ 20-page PDF companion guide
✓ Notion workspace template (duplicate link included)
✓ Solo Builder's Budget Model — the one number that runs everything
✓ 3-layer marketing system that works without an audience
✓ Korean solo builder context: banking, taxes, platforms
✓ Revenue tracking dashboard template

For teams, agencies, and enterprise

Team bundles, agency license, white-label

If you're running Claude in production at a team or implementing for multiple clients, the single-seat prices above aren't the only option. We do 5+ seat team bundles, agency licenses (re-use across N clients), white-label (your branding), and custom playbooks on request.

Email firstshout@gmail.com with team size and use case — typical reply within 24h.

Frequently asked

Can I still buy these products?

No. All product sales ended on July 19, 2026. These pages remain online as an archive of what was built.

Why were sales discontinued?

The products were written for the Claude 4-era toolchain. Rather than sell material that ages out of date, we retired the whole line. Everything worth reading on this site is free.

I bought a product earlier — is my download still valid?

Yes. Existing purchases and downloads are unaffected. For any issue, email firstshout@gmail.com.

All products are independent publications. Questions? firstshout@gmail.com

Also tracking your Claude API costs? claudecosts.app — free dashboard for your Anthropic Admin API usage. Connect your key once, see daily spend by model. No credit card.