machina discendi

A post making the rounds claims that Claude Code subagents share a prompt cache, making parallelism "basically free." It says you can spin up five agents and pay barely more than one. It lists three execution models — fork, teammate, and worktree — and says they all share the cache. Analysis of …

BM25 is an unsung hero powering heaps of stuff you use every day – think search bars, recommendation systems, or even those fancy AI chatbots that somehow dig up the right info from a mountain of text (we're looking at you, Retrieval-Augmented Generation).