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 13:10:03 UTC

C.22.PFR:8 - Common Anti-Patterns and How to Avoid Them

Anti-patternFailureRepair
Card-created ProblemCreating or accepting a ProblemCard is treated as Problem actuality.Test actual-condition obtaining, applicability obtaining, and adverse predicate truth; keep the card as an episteme about zero or more occurrences.
Duplicated applicabilityPredicate, entity, scope, or interval is writable in both applicability and PFR.Keep those values only in ProblemCriterionApplicabilityRelation and derive PFR projections.
Applicability conditioned on adversityCriterion applicability is ended whenever the actual condition becomes non-adverse, so PFR tests the same predicate twice and cannot replay A-B-C with one applicability occurrence.Let applicability state which criterion governs the entity and scope under the declared window; test adverse-condition satisfaction only in PFR §4.3.
Relation-as-coordinateAn arbitrary condition relation is said to be adverse without naming the characteristic point, projection, or link to the problem-for entity.Use the predicate’s exact direct-input or governed-projection rule; reject the nearest plausible projection that does not meet that rule.
Assessment-constituted PFREvaluation work or an assessment result becomes a universal PFR participant or is treated as starting or ending the world-side episode.Let evaluation and evidence support a boundary claim; keep PFR participants, actual inception, and actual cessation world-side.
Evidence-window splittingEach measurement or assessment window creates a new Problem occurrence.Use actual adverse inception and cessation for occurrence identity; keep support windows with the claims they warrant.
Unknown-as-recovery or continuityMissing evidence is treated as proof of recovery or as permission to bridge the gap.Record continuity unresolved; later evidence may revise the boundary assertion but does not create the world-side episode.
Open-interval churnEvery observation changes the identity key, or open is used for an unsupported evidence gap.Keep participants plus actual adverse inception as the stable reference; use open only for supported current obtaining and add the recovered end to the claimed extent on closure.
Method-selected resolutionFinding a repair method is treated as ending the Problem.Update the solvability claim; end PFR only when the adverse condition or another obtaining condition ceases.
Criterion-edition identityRewording or republishing a coextensional criterion creates a new Problem.Recover the by-value predicate; create another applicability occurrence only when a fixed participant changes or when actual applicability ceases and later obtains again.