Use when asked to trace, investigate, root-cause, reproduce, plan, fix, resolve, close, or prepare a PR for an issue, bug report, defect, regression, failing test, or confusing runtime behavior. This Codex adapter delegates to the canonical protocol at .opencode, which owns the Full-Resolution Contract, reproduction, reasoning-guided localization, no-gap fix planning, recurrence-class eradication, independent critic and implementation review, and PR-ready closure.
