Instructions for gabriele-mastrapasqua/codex-lean-team, covering lean team v2: execution-first engineering, model hierarchy, default execution policy, routing and delegation guidelines.
Route software-engineering tasks to the smallest useful workflow. Trigger for ambiguous, multi-module, risky, performance-sensitive, AI/ML, or infrastructure work; skip for trivial edits.
Optimize code only when performance is an explicit goal and evidence or a reproducible benchmark exists. Covers native, managed, backend, and GPU workloads.