https://ctx-lab.com/field-notes/Field notes on building, shipping, and operating AI systems.Hugoen-ushttps://ctx-lab.com/field-notes/litellm-vs-envoy-ai-gateway-breadth-is-table-stakes/Sun, 19 Jul 2026 00:00:00 +0000https://ctx-lab.com/field-notes/litellm-vs-envoy-ai-gateway-breadth-is-table-stakes/Provider count used to matter. Now most of the list is the same OpenAI-compatible integration wearing different base URLs.https://ctx-lab.com/field-notes/everything-has-changed-and-yet-everything-is-the-same/Tue, 07 Jul 2026 00:00:00 +0000https://ctx-lab.com/field-notes/everything-has-changed-and-yet-everything-is-the-same/Ontology and semantic layers are back because LLMs finally consume the meaning people used to write down for machines that never arrived.https://ctx-lab.com/field-notes/deliberate-handoffs/Sun, 05 Jul 2026 00:00:00 +0000https://ctx-lab.com/field-notes/deliberate-handoffs/The industry is obsessed with loop engineering. I don't write loops. I do handoffs. When I build agentic systems for users, the handoff is the product.https://ctx-lab.com/field-notes/why-we-love-id-jag/Fri, 03 Jul 2026 00:00:00 +0000https://ctx-lab.com/field-notes/why-we-love-id-jag/Everyone bolts human OAuth onto a bot and hopes the bot behaves. ID-JAG is the first identity model I've seen that treats agents as their own category.https://ctx-lab.com/field-notes/three-sandbox-apis/Thu, 04 Jun 2026 00:00:00 +0000https://ctx-lab.com/field-notes/three-sandbox-apis/An agent that writes and runs its own code needs somewhere to run it. I looked at three primitives: agent-sandbox, OpenSandbox, and Cloudflare Sandbox.