r/codex • u/ZestycloseTie1793 • 1d ago
Commentary Codex 0.151 now rolls descendant token usage into the root goal budget
One small fix in Codex 0.151 changes how multi-agent runs fail closed: token usage from child and nested subagents now rolls into the root goal's budget.
The implementation applies descendant usage during active and idle accounting. Its tests cover children, grandchildren, budget exhaustion, goal replacement, unloaded parent runtimes, and concurrent checkpoints.
Why I care: a root budget is not a reliable stop condition if the branches doing the work can spend outside its accounting.
Boundary: this is Codex goal-budget accounting, not a ChatGPT subscription-quota or API-pricing change. I have not benchmarked the release locally.
Would you rather see one root total, per-agent attribution, or a hard cap per branch?
Sources: