LemonHarness adds explicit workspace boundaries to boost LLM agent reliability
LemonHarness is an execution framework that forces LLM agents to operate inside a defined workspace, converting file writes, installs, and temporary artifacts into structured tool calls. By exposing state changes and a time‑aware budget, it lifts long‑horizon task accuracy from 84.5% to 86.5% on Terminal‑Bench 2.0, proving tighter runtime control improves stability.