Artifact: Full Product Brief Consistency Check — Kestrel Swap Approval

A compact product brief assembled and checked for consistency -- exercises co-01, co-07, co-12, co-15, co-17. Kestrel is a fictional product; every quoted number, question, or finding here is an illustrative, constructed example, not real data or a real transcript.

Problem/outcome: managers currently lose track of routine swap requests for hours; the outcome sought is routine swaps resolved within minutes, not a new "approval screen" feature for its own sake.

MVP scope: fast-path SMS approval for routine, same-role, same-shift-length swaps only (the riskiest-assumption test), with a per-team disable toggle; explicitly not a general workflow engine and not cross-location swaps.

RICE-ranked mini-backlog:

Item	Reach (per quarter)	Impact	Confidence	Effort (person-months)	RICE
Fast-path SMS approval	500	2	0.8	3	(500×2×0.8)÷3 = 266.7
Per-team disable toggle	500	0.5	1.0	0.5	(500×0.5×1.0)÷0.5 = 500
Approval-queue screen redesign	300	1	0.5	2	(300×1×0.5)÷2 = 75

Ranked: disable toggle (500) > fast-path approval (266.7) > queue redesign (75) -- consistent with the pitch's circuit-breaker, which keeps the toggle and the fast-path flow and cuts the queue redesign first if time runs short.

Metrics: this feature is one of the north-star's three input-metric levers (shift-swap completion rate) -- success here should move that input metric directly.

Experiment: hypothesis -- fast-path approval reduces median swap-request-to-decision time without increasing manager-reported wrong-approvals. Primary metric (OEC): median time from swap request to a final decision. Guardrail: manager-reported incorrect approvals (a swap that shouldn't have qualified as "routine" but was auto-approved) must not increase.