Leaflet

MCP's 2026-07-28 specification removes protocol sessions and the Mcp-Session-Id header, making remote MCP servers cheaper and easier to scale. This post explains the old session model, why it required infrastructure such as sticky routing and Redis, and h

Putting policy inside plain-language instructions gives the model a lot of (expensive) work to do before it can act, and there are no guarantees about safety. Furthermore, other prompts in the context window may be pushing in a different direction. Here's

An explainer for everyone in 4 minutes or less.

Bluesky was founded in 2022 to produce a protocol which Twitter could adopt. The product goals changed, but the requirements didn't.

From GeoCities to Facebook to Open Social and beyond: a history of digital homes, and a thought experiment for what comes next.

Census of rotation keys and other ways of asserting strong control over identity on the Atmosphere

We're introducing Quests in Attie, an interactive research and exploration tool for the Atmosphere, as well as a redesign.

So when we say that an AI called a tool, what usually happened is a little more specific than that phrase suggests. Here's a deeper look into that plumbing.

Every mature system is carrying around lessons that were never written down.They're encoded as validations, retries, timeouts, workflows, and exceptions.The implementation remembers. The organization forgets

Some rules to keep you in control of your code