How 7 Kilo Code Engineers Run Up to 20 Parallel Agents and Still Ship Clean Code

Seven senior engineers share how they actually use parallel AI coding agents productively. The real setup: 2–4 foreground agents you actively manage, plus a handful of background 'fire-and-forget' agents that submit PRs for later review. Key insights include avoiding context rot past 60% fill, using slow planning models with fast executors, and adding separate verification agents to catch errors.