AI engineer · agent infrastructure, LLM tooling and CLIs

I build the tooling that AI engineering runs on: model routing, agent orchestration, and the small CLIs that sit under a coding agent's workflow. Everything I ship is open source, and the pinned repos are the current set.

Recent work: a drop in proxy that routes every Claude request to the cheapest model able to handle it, measured by replaying 200 real turns; a desktop workspace that runs a team of coding agents in parallel, each isolated in its own git worktree; and a coding agent held under 10k lines by a budget enforced in CI.

I work in TypeScript and Java. I improve my AI engineering practice constantly and I am always looking for the next better workflow.

Also running quillfile: convert, resize and compress images, and manipulate PDF, Word and Doc files, entirely in the browser.

_{Open to interesting challenges · leniv.tech@gmail.com}