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:525

    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.
    • 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: 2026-07-12 — upstream FPF commit 44dd8818 (github.com/ailev/FPF)