codex-explore-skill

Use when a coding task requires broad codebase reconnaissance before implementation, especially unfamiliar repositories, architecture questions, feature tracing, bug investigations, refactors, migrations, reviews, or changes that may require reading roughly 10+ files or searching multiple independent areas. Delegates read-only exploration to explorer subagents first, keeps the main conversation lean, prevents the main agent from reading code while subagents are exploring, and requires a key-files table before the main agent proceeds with detailed code reading or edits.