Two AI agents code-review each other; Writemark zero-dependency

Hubo wires two autonomous coding agents into a back‑and‑forth loop: one writes and tests code, the other reviews the diff and evidence. The cycle repeats until every finding is reconciled or a human decision is needed, slashing blind‑spot risk in AI‑generated code. It puts the emerging multi‑agent engineering model into a usable plug‑in.

Writemark is a dependency‑free web component that renders Markdown as you type, while keeping the raw Markdown as the form value. It works in any framework, offers slash commands, keyboard shortcuts, and a Playwright test suite, making it ideal for lightweight, custom editing UIs without pulling in a heavyweight editor library.