Plan an entire operation without executing it: right-size the output (single plan doc up to a full design-spec + implementation-plan + breakdown + weak-model-proof task-brief package with gates and dependency waves) and write it into the target repo's docs/ tree. Use when /plan-op is invoked, or the user says plan the whole operation, spec this out and produce task briefs, or plan but do not build. Not for single-PR PLAN.md gating (that is plan-first) and never implements anything.
2026-07-05