The library

Every issue, in one place

The AI Runtime library is our own writing: weekly issues on Vertical AI Agents, Model Reliability Engineering, and the lessons from the trenches of shipping AI. Free, every week.

From the newsletter

The AI Runtime, issue by issue

Issue The AI Runtime · Jun 8, 2026

The AI Eval Gate Cheat Sheet

Most AI projects die in the gap between "works in the demo" and "works in production."

Issue The AI Runtime · Jun 3, 2026

The Anatomy of an AI Legal Agent

The leading AI legal research tools still hallucinate on up to a third of queries, so the production answer in law is not a better model but a harness built to assume the model is wrong.

Issue The AI Runtime · May 25, 2026

The Complete Field Guide to Browser Harnesses in 2026

Thirty-plus harnesses, four topologies, two billion-dollar valuations, one collapsing abstraction layer. The canonical landscape of how autonomous agents drive the web - and the trade-offs that decide

Issue The AI Runtime · May 19, 2026

The Anatomy of a Production Vertical Agent

Seven layers wrap every LLM that has shipped in healthcare, banking, and insurance. The model itself is the smallest of them — here’s what the other six are doing.

Issue The AI Runtime · May 15, 2026

MCP Servers Are the Next Shadow Surface

Tool descriptions are now executable instructions, the dependency graph for agents runs through hundreds of unvetted servers, and the registry your enterprise needs to govern them does not yet exist.

Issue The AI Runtime · May 14, 2026

The Cost-Per-Completed-Task Era

Per-token pricing was the right unit when API calls were single-shot. Is it when your agent runs adaptive thinking, fans out tool calls, spawns sub-agents, and retries on partial failure?

Questions

Ask us a specific question

Working on something specific? Ask our team directly. We read every question.

Opens your email app, sends to info@theairuntime.com.

Prefer to email directly? info@theairuntime.com

Subscribe

Get it in your inbox

One free issue a week on Vertical AI Agents, Model Reliability Engineering, and lessons from the trenches of shipping AI.