Public signal
System architecture
These pages define the rules that keep outputs deterministic: invariants, governance boundaries, and structural updates.
Read these as governance docs, not product copy. If a comparison or tool conflicts with a signal here, the signal wins.
Architecture signals
Permanent invariants and boundaries that all generation must obey.
Architecture | Mar 11, 2026
Comparison Production EngineAll comparison pages are produced exclusively through Row Finder → Row Triage → Page Factory.
Architecture | Feb 27, 2026
Constraint Decides Winner InvariantThe winner is determined by which tool fails first under the locked persona constraint.
Architecture | Feb 27, 2026
Human Governance vs AI Production BoundaryHumans define invariants; AI operates strictly within them.
Architecture | Feb 27, 2026
Tool Extraction ModelReusable tools are derived from repeated constraint-driven failure logic.
Structural deltas
Changes to the system contract over time.
Delta | Feb 27, 2026
Differentiation Density UpgradeEvery verdict must include mechanism and friction, not only constraint and failure.
Delta | Feb 27, 2026
Row Finder Depth ExpansionRow generation must expand into under-covered tools and asymmetric pairs to preserve inevitable decisions.