AI Fluency Index prevalences for 11 of 24 behaviours

This is the condition and consequence recorded in the registry. The vocabulary this is published in defines what each consequence commits the author to.

Arithmetic on the figures published in the Index summary, nothing more. A pooled rate is a mixture of its subgroups, so a stated overall rate and a stated between-group difference bound each subgroup rate and their ratio; scripts/mixture_bounds.py computes those bounds in closed form and cross-checks them against a sweep. This is a re-expression of published numbers on a relative scale, not a re-analysis of the underlying conversations, to which this record has no access. It inherits every limitation the report declares: the findings are correlational, and the report states that users may perform fluency behaviours mentally without expressing them conversationally — so a fall in transcript-visible checking cannot be separated from checking that moved off-platform, which is where checking an artifact ordinarily goes. The measured evaluation gap is confounded with a measurement gap and these numbers cannot separate them. The framework is CC BY-NC-SA 4.0, copyright 2025 Rick Dakan, Joseph Feller, and Anthropic PBC; it is cited and analysed here, never redistributed or productised.

Repairs declared unavailable in advance; using one after a failure would breach the recorded commitment.

• do not widen the stated interval after the fact to accommodate a figure that falls outside it
• do not restate the bound as an estimate of the artifact-conversation rate
• do not present the Description-rises / Discernment-falls pattern as causal, or as evidence that artifacts reduce evaluation rather than relocate it
• do not repackage the framework's behaviour taxonomy into any commercial or certification artifact; the licence is NonCommercial ShareAlike

• not a criticism of the Index; the observability boundary and the correlational limits are the report's own declared statements
• not a claim about any individual's competence, and not a measure of anyone's diligence
• not evidence that artifact production causes less checking — the published marginals cannot separate a behaviour change from a measurement change
• no access to the underlying conversations; this is arithmetic on a published summary

Binding

the-ai-fluency-index
The published summary. Figures transcribed into scripts/mixture_bounds.py and re-asserted against this claim's expected block on every CI run; a change upstream fires the manual trigger below rather than silently altering a bound.

Reviewed

2026-08-28 · window 90 days

Expires

2026-11-26 — after this date the recorded review is overdue; this does not make the claim false

Triggers

• executable fires when the transcribed figures or the bound change
• manual the report publishes the artifact share, states which comparison group the differences are against, corrects a figure, or expands the analysis to a different sample

Dimensions

visibilityPublicprovenanceMachine-generated, owner-executedsupport roleExecuted outputmaturityExperimental