getbusbar/headroom-hook repository overview

Pre Busbar 1.5.0 version. Every tool call, DB query, file read, and RAG retrieval your agent makes is mostly boilerplate — noise the model pays to read on every request. Trimming it away usually means bespoke work in each app, rebuilt for every provider whose limits differ.

The Headroom project already solves the hard part: it compresses that boilerplate away before it hits the model, so the LLM sees less noise, responds faster, and costs less. The Busbar hook is a thin rewrite gate that runs it on the path — it hands each request to Headroom before it ships, no app changes required.