Route eligible coding work to OpenAI Codex (GPT-5) to save cost and time while Claude stays orchestrator and quality gate. Use PROACTIVELY when a task is well-specified and bulk, mechanical, repetitive, parallelizable, or long-running — codemods, boilerplate, migrations, wide find-and-replace refactors, test scaffolding, dependency bumps, sweeping a change across many files — or when an independent second-model review, diagnosis, or research pass adds value. Also triggers on explicit asks to delegate to Codex, offload work, or use Codex for a task. Do NOT use for interactive debugging, architecture and design judgment, nuanced or high-stakes code, or work that depends on rich in-conversation context.
2026-07-09