Architecture History
Read UAR's decisions and reversals without confusing history with current product truth.
Architecture Decisions
Index retained UAR ADRs and understand what their status proves.
Architecture Timeline
Follow the dated changes that produced UAR's current architecture.
Corrections and Reversals
Preserve the decisions UAR changed after new evidence or a changed product boundary.
Process and Provenance
Understand how ADR, OpenSpec, KBD, and retained Prometheus history support public claims.
Testing Methodology History
Understand why UAR changed what it accepts as evidence.
Evidence Taxonomy
Match each UAR claim to the narrowest test that can actually support it.
Negative Controls
Prove that a fail-closed assertion can detect the failure it names.
Local Verification and Timing
Run UAR checks at the boundary where their evidence becomes useful.