FPF Reference

    COSTLY-ACTION - Prepare an expensive or hard-to-reverse action

    Preface node heading:costly-action-prepare-an-expensive-or-hard-to-reverse-action:553

    What this page is

    This is generated FPF reference text from the specification preface or supporting sections. It helps interpret FPF; it is not FPF Reference product documentation.

    Methodology

    Use it to understand how the specification wants to be read, then return to a route, pattern, or work packet for active work. Cite generated IDs only when the wording changes the task decision.

    Content

    • Situation and question. A proposed action is expensive, externally committing, safety-relevant, or hard to reverse. Ask which unresolved uncertainty or governing relation currently prevents responsible commitment, gate use, intended work, or performed work.
    • Template A. A.10 Solution -> claim-bound evidence-provenance graph relation. Select when the support basis for one claim or effect is not recoverable.
    • Template B. B.3 Solution -> Assurance(H, C | K, S) or an explicit no-assurance-claim disposition. Select when the action depends on a named assurance claim and its limitations and decay condition.
    • Template C. A.20 Solution -> path-slice-local CV result with step, CV class, CV.Status, and witness or refusal. Select when constraint validity is the current question; this result does not itself pass a gate.
    • Template D. A.21 Solution -> OperationalGate(profile) use with GateProfile, GateCheckRefs, aggregated CV status, GateDecision, and DecisionLogRef. Select when a real gate decision is current.
    • Template E. C.28 Solution -> CausalUseTriageRecord. Select when expected effects, intervention, counterfactual, or policy claims carry the action rationale and their supported-rung boundary is current.
    • Template F. C.11 Solution -> ChoiceResult. Select when several actions remain live and the current result is choose, reject, probe, or reroute.
    • Template G. A.15.5 Solution -> WorkEntryReadiness@Context. Select only after intended work exists and readiness to enter its work boundary is the current relation.
    • Boundaries. Stop at the first result that decides the present uncertainty; do not force every costly action through all templates. Return when the claim, evidence path, assurance context, constraint definition, gate profile, causal-use basis, option set, intended work, resource state, cost, or reversibility changes. Planning or readiness does not authorize or perform work, and a gate display does not replace GateDecision.
    • Result test. Use only the exact evidence relation, assurance or no-assurance disposition, constraint-validity result, gate result, causal-use record, ChoiceResult, or work-entry-readiness relation named by the selected template. Identify it under its owner, then name the exact proposed-action U.WorkPlan, evaluation, assurance reliance, gate or choice decision, or dated U.Work it would answer and the relation, binding, or supported claim that makes it this preparation's result. Name action entry or later work only when current; otherwise stop with the missing evidence path, criterion, profile, decision basis, governor, or information.
    • Public coarsening. "Costly action" restores to the exact evidence, assurance, constraint-validity, gate, causal-use, choice, or readiness result under its selection condition.

    Last Updated: 2026-07-29 — upstream FPF commit 2ada4136 (github.com/ailev/FPF)