25 July 2026

14 links ยท Saturday

Prompt Caching In Agents | EARENDIL

How prompt caching shapes the cost, latency, tools, and architecture of coding agents, and what Pi does to keep cache behavior visible.

The 0.1x engineer

Personal site and blog of Tiago Araújo, software engineer working in AI/ML and full-stack.

The Curious Case of Agent Memory

Approaches agents use to manage context: compaction, external retrieval, and learned experience.

Postgres LISTEN/NOTIFY Actually Scales | DBOS

How we optimized Postgres LISTEN/NOTIFY-backed data streams at scale, achieving 60K writes per second on a single Postgres server with millisecond-scale latency.