The lenses

Cascade lens

The Cascade lens traces how a single-variable shift propagates through downstream decisions in a multi-stage pipeline. It returns stage-by-stage attribution, so the buyer sees where the impact accumulates.

What it answers

The lens answers a single question, namely if one input shifts at stage one, where does the impact accumulate by stage N. The answer is a per-stage attribution showing the structural reading at each stage and the cumulative shift at the final stage.

When to run it

Run the Cascade lens for any decision pipeline with three or more sequential stages, where the buyer wants stage-by-stage attribution. Common applications include credit underwriting with referral, escalation, and approval stages; insurance claims with triage, adjustment, and settlement stages; and clinical decision pipelines with screening, diagnosis, and treatment stages.

Public-shaped output

The result page renders a Cascade panel with one row per stage. Each row carries the stage label, the structural reading at that stage, and the cumulative shift at the end of the row. A footer row reports the brittle stage, namely the stage where small shifts produce the largest downstream swing.

Tier gate

Pro tier and above unlock the lens. Free and Growth do not.

What buyers do with it

Buyers identify the brittle stage, where small shifts produce large downstream swings, and harden it first. The lens is most useful when the structural verdict on the final output is multiplicative or mixed and the buyer needs to know which stage is multiplying the shift.

Reviewers reading the report under PRA SS1/23 Principle 3.4 treat the Cascade panel as documented stage-level attribution; the panel reports the structural reading at each stage and identifies the brittle stage, without prescribing a fix.

Further reading

• The lenses Transfer lens →
• The lenses Section overview →
• Get started First diagnosis →