Its easy to fix. I've run into the same issue on day one, thankfully I got the usage reset. Just tell your claude session to be 'head-orchestrator' and delegate to Sonnet or Opus rather than more Fable agents. The fable making fable thing also made my usage evaporate.

Also a custom mcp letting it call Sol 6.1 on high via codex for general workers has really helped me preserve Claude usage.

I have a heavy workload running right now with Fable head-orch + Opus x8-10 sub-orchs calling codex workers, and usage is really slow for the amount of work being done.