GitHub - cahian/baton: Relay a long coding goal across subscription agents without spending paid credits

Why it matters

The article documents baton, a tool that keeps a long coding goal progressing for days by rotating it among coding agents while capping what each can spend. It runs Codex and Antigravity by default, with Claude as an optional, pay-per-use third that joins only after an API key is saved. Each agent's turn ends at a fixed dollar limit or a fixed number of hours, whichever comes first, and Claude is excluded from a goal once its spending within that goal passes a set threshold, all under a monthly ceiling. A goal is defined by an objective, a working directory, and a verification command, and it only finishes when that command exits successfully; an agent claiming completion counts for nothing. baton reimplements no agent, instead driving each vendor's own CLI, with context carried through the repository, commits, and a handoff file. Work inside a goal follows a plan, build, and review cycle, and completion requires consensus among the agents. Superpowers supplies the shared working method for every round and cannot be disabled.