I have something like that running locally for my agentic harness (which includes cross-model messaging). There's a dedicated "product manager" session for it, and all other PMs are instructed to report issues with the harness as they occur to that session, while it is tasked to automatically prioritize and address them and coordinate fix deployment with other running sessions.

It works surprisingly well. The errors fixed are both genuine errors in the harness itself, but increasingly so upstream bugs (in the underlying agent apps like Codex, or in Herdr, which is used to expose uniform programmatic access to all those different apps) for which it needs to come up with workarounds. No regressions so far.

The cost is hard to judge on a subscription, especially when you're running really heavy tasks otherwise that dwarf any harness work.