Use the attached SCALE-AGENT-INSTRUCTIONS.md as the working method. EVIDENCE-PACKET.md contains fictional Northstar evidence, supplied decisions, and calculation data available by May 6, 2026. Use earlier material as background and answer the current results question below.

The earlier decisions in the packet are scenario facts, separate from my recommendations. Preserve any earlier conclusion I supply as my previous work; explain changes without rewriting it. If I supply none, identify a conclusion from the packet's earlier evidence that merits reconsideration.

Assess the day-90 results and recommend the next action. Produce a concise decision brief, about one to two pages with a small calculation table if useful, that:
- Gives a direct recommendation and identifies the authority required.
- Reconciles reporting periods, denominators, changed work scope, and branch variation.
- Shows the arithmetic behind at least one material claim, citing the source, period, numerator, denominator, and scope.
- Examines customer outcomes, cost, and operational conditions alongside the headline performance measure.
- Distinguishes what the evidence establishes from uncertainty and competing explanations.
- Compares a credible alternative, states conditions and stop or review triggers, and explains what would change the recommendation.
- Identifies one earlier conclusion to narrow, reverse, or retain with a reason.

Use the attached definitions and tables. Keep missing data visible; do not invent transaction records, causal attribution, approvals, or results.

Finish by identifying the conclusion most vulnerable to challenge and the evidence that could change it. I will review the draft. Keep my review separate from a fictional business decision. A reviewed brief and a short correction note are sufficient; no JSON export or complete architecture model is required.