TandemKit

TandemKit Planner — investigate, plan with Codex second opinion, and produce a Spec.md. Invoked explicitly by the user.

TandemKit Generator — implement a mission's spec, commit at milestones, signal the evaluator, and present the review briefing. Invoked explicitly.

TandemKit Evaluator — verify the Generator's work against the spec with Codex as a second opinion. Fully autonomous. Invoked explicitly.