Managing experiment lifecycle

This skill covers experiment state transitions — what each action does, when to use it, and how it affects variant assignment and analysis.

State diagram

draft ──launch──▶ running ──end──▶ stopped ──archive──▶ archived
                  │ │   ▲              │
                  │ pause resume  ship_variant
                  │ │   │         (also ends if running)
                  │ ▼   │
                  │ paused (flag inactive, still "running" status)
                  │
                  ├─freeze_exposure──▶ exposure_frozen ──unfreeze_exposure──▶ running
                  │                    (enrollment closed, metrics keep flowing)

Any non-draft state ──reset──▶ draft