references/principles/causal-rigor-over-platform-attribution.md

# Causal Rigor Over Platform Attribution

## Principle

Use the strongest practical counterfactual for the decision; platform attribution is observational evidence, not automatic proof of causation.

## Application rule

Apply only when supported by the current decision context. For platform-specific implementation details, load the relevant dated card under `references/2026/` and re-check freshness.