It lets you have multiple subscriptions and switch between them on the fly. Now I have 4 CC subscriptions, 3 codex and 2 cursor subs. And it saves me 15k$ monthly compared to token-based oversepnd.
Claudexor manages context and quata and lets you run multi-harness loops (do until code review is clean, merge best of N worktree multi-harness work, etc).
Best use as a plugin in CC.
MIT licence, no telemetry. Hope anthropic won't bun it...