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Library / First Principles Framework (FPF) - Core Conceptual Specification
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Source changed 2026-10-03 11:52:20 UTC · snapshot created 2026-10-03 11:53:41 UTC · last check 2026-10-03 13:35:10 UTC

C.24:4.5 - Causal action-use field

Add the causal field only for a named causal use in which the planned calls are intended to observe, intervene, collect counterfactual-rung evidence, simulate for a causal claim, condition a counterfactual policy, or evaluate a policy causally:

CallPlan.causalActionUseSpec?:
  causalUseQuestionRef: CausalUseQuestionRef
  targetCausalityLadderRung: CausalityLadderRung
  causalUseClaimKind: CausalUseClaimKind
  causalActionPolicyClass?: CausalActionPolicyClass
  causalEvidenceDesignRef?
  causalSupportComponentRefs?
  causalUseSupportResultRef?: CausalUseSupportResultRef
  supportedUse
  unsupportedUse

The field states the planned causal use and any support already consumed. It does not estimate an effect, prove identification, certify fairness, or turn simulation output into realized counterfactual evidence. Use C.28 for those support questions.