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Prompting & Context Engineering

Instinct Is the First AI Assistant You Employ Instead of Operate. Here Is the Playbook.
A personal agent went from launch to $2.5 billion in weeks. The setup order, 30+ ready-to-send texts, 7 workflows, and your invite, for premium…
 • Ruben Dominguez
BREAKING: Perplexity Just Split the AI Agent in 2. The Cloud Reasons, Your Mac Keeps the Secrets.
Hybrid Compute launches on Perplexity Computer. The setup, the 4 workflows it unblocks, the prompts to run them, and how to try Computer free.
 • Ruben Dominguez
Google Senior AI Leader’s Loop Engineering Masterclass: How to Build AI Systems That Improve Their Own Work
A practical guide to goals, evals, memory, guardrails, escalation, and stopping conditions.
 • Ruben Dominguez and Shubham Saboo
Claude Fable 5 is free for 4 more days. Here is the full guide
Anthropic’s strongest model ever is included in paid plans until July 12. The best practices, the copy-paste prompts, and the two patterns that keep…
 • Ruben Dominguez
Your AI bill is mostly wasted tokens
The 4-layer system that cuts it 50 to 90%, with the copy-paste setup
 • Ruben Dominguez
The head of Claude Code stopped prompting Claude. Most builders missed why
Loop engineering, the five blocks Claude Code and Codex both ship in 2026, copy-paste /goal conditions and SKILL.md, the maker-checker split, and the…
 • Ruben Dominguez
You are still chaining prompts. Anthropic's engineers stopped a month ago
The 6 patterns and 14 steps the frontier company actually uses to migrate code, sort 1,000 items, and verify agents at scale
 • Ruben Dominguez
Your AI agent is going to hallucinate at scale
The bigger the memory, the worse it gets. The 6 architectures that fix it, the 12 prompts that constrain Claude into structured output, and the 30-day…
 • Ruben Dominguez
I built a $0 second brain that compounds for life
Obsidian has 2,700+ plugins. The CEO just shipped official Claude Skills with 12,900 GitHub stars. The integration is the personal AI moat nobody is…
 • Ruben Dominguez
Your voice is the only AI moat that compounds. Here is how to clone it into Claude in a weekend
The model is the commodity. Your voice is the asset. A 4,000-token file is the only defense that gets stronger as AI gets cheaper
 • Ruben Dominguez
Build your own stock analyst with Claude
The 12-prompt system that replaces a $250K Bloomberg terminal and a $1,500/month research subscription. For $20/month. Built for operators who manage…
 • Ruben Dominguez
The AI code review checklist that prevents the next $1M production incident
8 documented disasters. 7 failure modes. 3 review tiers. 12 self-review prompts. Built for engineers shipping AI code in 2026.
 • Ruben Dominguez
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