Auto-generated. This article is rebuilt from app/signals/config/signal_definitions.json by scripts/build_signals_kb.py. Edit the registry entry and re-run the script — do not edit this file directly.

Screener Brier Score

What it is

Screener Brier Score — registry key screener_calib_brier.

Calibration output metric from the screener prediction loop.

Source

Source module: screener_calibration
Data source: computed

Derived metric — produced inside the platform (app/sources/screener_calibration.py or equivalent) rather than fetched as a raw upstream value. See the How it's computed section below for the formula.

How it’s computed

mean((score_norm - (1 if realized_return > 0 else 0))^2) for matured rows. Returns null when n < min_matured_samples.

Where it surfaces

• API field: screener.calibration.by_archetype.<archetype>.overall.brier_score on GET /api/v1/signals/latest

Health-score / alignment role

Data carrier — no implication, no health-score contribution.

Persisted for downstream consumers (sparklines, base-rate matcher, calibration substrate) but does not classify into BULLISH / NEUTRAL / BEARISH and does not contribute to the 0-100 health score.

Release cadence

• Publishes: daily