The Quarterly Review — What to Actually Check Every 90 Days in a Redundancy-First Stack

A 90-day review procedure for a redundancy-first financial stack. Six checks, no recommendations, library-grade. Educational framework.

A redundancy-first stack is not a thing you build once and ignore. It is a procedure you run on a cadence. This essay lays out the six checks we run every 90 days inside the Obsidian Metrics framework — what changes, what does not, and which signals actually require action versus which ones are noise.

A redundancy-first stack is not a thing. It is a procedure. The framing most retail-finance content uses — "I built my income system" — implies a one-time act of construction after which the system runs itself. In practice, the platforms inside any retail stack change weekly. Yields drift. Sponsor banks rotate. Account-tier thresholds get raised. Apps re-architect their sweep mechanics. State licensing changes. A platform that filled a yield-venue slot cleanly in February may, by May, have moved enough on fees or custody that the same allocation no longer earns the slot.

Topics

• framework
• cadence
• review
• operations