How to Validate a Business Idea Before You Build It
A practitioner's framework for testing whether a business idea has real demand before you invest time and money — 5 methods, common traps, and the signals that say go.
Jun 20, 2026
Prompt Caching with the Claude API: Cut Your Input Costs Without Switching Models
How to use cache_control to cut Claude API input costs by up to 90% on agents with large stable prompts — the prefix-match invariant, what to cache, silent invalidators, and the break-even math.
Jun 18, 2026
Claude Fable 5 First Impressions: An Operator's Take
Updated for 2026. First impressions of Claude Fable 5 from someone who runs 30+ production agents — what's actually different, the cost gotcha nobody warns you about, and whether you should switch.
Jun 12, 2026
The Ultimate Beginner's Guide to AI Agents: Cowork, Codex, and the Tools That Actually Do the Work
Updated for June 2026. AI agents like Claude Cowork and OpenAI Codex don't just answer questions — they do the work: reading your files, writing code, running tasks end to end. Here's how a beginner gets a real win in an afternoon, no engineering background required.
Jun 11, 2026
How Does Anthropic Make Money? The Claude Business Model Explained
Updated for June 2026. Anthropic makes money by selling access to its Claude models: usage-based API pricing for developers, Claude subscriptions for consumers (Pro and Max), enterprise seats for teams, Claude Code for engineers, and cloud-marketplace distribution through AWS and Google. Here's how each line works.
Jun 11, 2026
How Does OpenAI Make Money? The ChatGPT and API Business Model
Updated for June 2026. OpenAI makes money from ChatGPT subscriptions (Plus, Pro, Team, Enterprise), a usage-based API for developers, large enterprise deals, and its deep partnership with Microsoft. Consumer subscriptions are the biggest single line. Here's how each part of the model works.
Jun 11, 2026
How Does SpaceX Make Money? Launch, Starlink, and the IPO Question
Updated for June 2026. SpaceX earns from three engines: commercial and government launch services (Falcon 9 and Falcon Heavy), the Starlink satellite-internet business, and large government contracts (NASA and national security). Here's how the model works — and the truth about a SpaceX or Starlink IPO.
Jun 11, 2026
How to Use Claude Scheduled Tasks: Automate Recurring Work on a Cron
Updated for June 2026. Claude scheduled tasks let you run a prompt or an agent on a recurring schedule — a daily news digest, a weekly report, an overnight code job — without being at the keyboard. Here's how they work, where to set them up, and the patterns that actually pay off.
Jun 11, 2026
AI Agent Cost Math: When Haiku Beats Sonnet (and When It Doesn't)
Updated for 2026. The cost math I use to pick Claude Haiku vs Sonnet per task — token economics, the routing rule, and where cheap models quietly cost more.
Jun 8, 2026
How to Debug an AI Agent in Production (A Field Guide)
Updated for 2026. The exact playbook I use to debug AI agents running live — trace every step, isolate the failing layer, and reproduce non-determinism fast.
Jun 8, 2026
How to Measure Whether AI Search Is Actually Sending You Traffic
Updated for 2026. How I measure AI-search traffic from ChatGPT, Perplexity, and Claude — referrer tracking, the dark-traffic problem, and what to trust.
Jun 8, 2026
Multi-Agent Orchestration Patterns: Queues, State, and Handoffs
Updated for 2026. The orchestration patterns I use to run multi-agent systems — durable queues, externalized state, and clean handoffs that survive retries.
Jun 8, 2026