I got tired of coding agents stepping on each other, so I built a coordination layer

Like a lot of you, I don't write much code anymore. I manage agents. I review. I practice. I don't write my features. For a while, I was just managing a few agents through the CLI. That works surprisingly well until you try to scale it beyond one or two agents. Once there are five or ten running around the same repo, things start getting messy. They overlap. They undo each other's work. They all need slightly different context. You end up coordinating agents instead of building software. So I started building a coordination layer instead of a better prompt. The basic idea is pretty simple: planning happens once, work gets broken into scoped tasks, agents only work inside those boundaries, and everything comes back with receipts before I review it. The repo becomes the source of truth instead of the chat history. I've been calling it Manciple. It's not another coding agent. It's the thing that sits around Claude Code, Codex, OpenCode, etc., and keeps them from constantly getting in each other's way. Last week I let it chew on a feature for about 40 minutes and it completed 13 scoped tasks without me touching it. I was reading diffs and deciding what I wanted to keep rather than looking over it's shoulder.