Language decider

Resolve the design language first: audience, purpose, medium. Rules match top-down; every condition must hold; the first full match wins. Then pick the chart via patterns or the chart index.

#IfThenWhy
1purpose = decide, audience = executiveDL-01 AGRAWAGRAW: one governing message, authority through restraint
2purpose = proveDL-14 EVIDENTIAEVIDENTIA: numbered exhibits, proof over persuasion
3audience = legalDL-06 LEXLEX: every statement referenced, looks like evidence
4purpose = alertDL-12 NOROSHINOROSHI: verdict first, exceptions only, owner on every row
5purpose = monitor, medium = screenDL-08 SENTINELSENTINEL: dark panels, one amber watch metric
6audience = fieldDL-05 OBEYAOBEYA: readable from 3 meters on a bad projector
7medium = projectorDL-05 OBEYAOBEYA: contrast survives washed-out rooms
8audience = technicalDL-04 SHILPASHILPA: title blocks, monospace IDs, stamps
9purpose = explain, audience = analystDL-03 LOGOSLOGOS: the chart is the page, annotation over legend
10purpose = explainDL-03 LOGOSLOGOS: evidence before opinion
11purpose = navigateDL-09 ATLASATLAS: geography drives layout
12purpose = celebrateDL-10 BASIRABASIRA: the photograph carries the page
13purpose = brief, medium = printDL-11 SUTRASUTRA: two pages, recommendation last
14purpose = briefDL-11 SUTRASUTRA: complexity distilled
15purpose = archiveDL-07 SAGASAGA: every report becomes history
16purpose = documentDL-04 SHILPASHILPA: precision before aesthetics
17purpose = monitorDL-02 KATAKATA: the recurring status register, repeatable structures
18audience = operationsDL-02 KATAKATA: default for recurring operational reporting
19audience = executiveDL-16 TELOSTELOS: answer first, action emphasized

No match: DL-02 KATA (KATA is the workhorse default when nothing sharper matches).

Controlled vocabulary

audience: executive, operations, analyst, technical, legal, field, public

purpose: decide, monitor, explain, alert, document, brief, archive, navigate, prove, celebrate

medium: screen, print, projector, wall, phone

intent: ranking, comparison, magnitude, trend, change-over-time, schedule, progress, part-to-whole, composition, share, volume, deviation, variance, flow, bridge, variance-decomposition, correlation, outlier-detection, pattern, density, status, lookup, readiness, uncertainty, distribution

narrative_style: recommendation-first, evidence-first, question-first, story-first

density: executive, operational, scientific

annotation_policy: none, minimal, guided, full

legend_policy: direct-labels-only, level-key-allowed

highlight_policy: single, dual, none

decision_style: recommendation-with-owner, options, evidence-only

reading_time: glance, minute, session

Chart specs draw meta.intent from the intent list; the validator rejects anything off-vocabulary.