Production-grade architecture for full-stack JavaScript and the AI systems you're now shipping. React, Node, and LLM-powered apps that survive growth, scale, and change.
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Catch up on past deep dives into production-grade React, Node.js, and AI systems.
The MCP servers I actually reach for when building features and shipping production apps.
Checkpoints, scoped retries, idempotent tools, and run budgets: how production agents survive the failure math of 20-step loops.
Your agent isn't a user. Stop authenticating it like one.
Mock the model and your suite goes green while testing nothing. Here's what to run instead, from unit tests to live alerts.
One good agent beats five mediocre ones. Here's the pressure that tells you when the split is finally worth it.
7 rules for tool definitions a model can't misread, starting with the sentence that fixes the most bugs.
One distinction that sets your HTTP status, your log level, and who gets paged.
One rule explains every React re-render. Get it right and memoization becomes the last fix, not the first.
The demo works on your machine. Here's what takes it down when real users show up.
Timeout, retry with backoff, and circuit breaker — what each one actually does, and the order to stack them.