Lullabeast open-sourced autonomous dev pipeline with deterministic gates

The developer has open-sourced Lullabeast, an autonomous development pipeline that uses planner, executor, and reviewer agents to build projects phase by phase against a real git repository. The system relies on OpenClaw as its runtime and employs deterministic gates between agent calls to verify file manifests, git diffs, and test results before advancing.

• Local run: 27B Qwen3.6 model on a modded 48GB RTX 4090 completed the task in 3h27m with $0 API cost.
• Cloud run: GLM-5.2 planner, Kimi-k2.7 Code executor and reviewer completed the task in 2h04m with $6.90 API cost.
• The pipeline includes retry mechanisms and escalation logic to handle predictable model failures like random file deletion or spec drift.

The author notes that while the tool performs well on small, focused webapps, it struggles with UI-heavy phases and complex projects, suggesting users run it in a VM for safety.