Languages / DL-08
DL-08 . Latin tradition . candidate

SENTINEL

Watch without distraction.

Vigilance. Related traditions: Pharos, Vegvisir.

Stock held at 41 units for three weeks after the June draw-down Watch without distraction . SENTINEL on live dashboards 0 20 40 60 80 units W20 W21 W22 W23 W24 W25 W26 W27 W28 Stock June draw-down: -23 in three weeks STOCK 41 units -23 since June WATCH . REORDER Alarm level unchanged at 30 units. Source: sample dataset v1, 2026-07-12 . Open Visualization Protocol, DL-08 SENTINEL

Design laws

  • Constant visibility
  • One highlighted watch metric
  • Dark environments
  • Fast scanning
  • Low cognitive load

Constitution

The deterministic communication contract: these values are schema-enforced and validator-checked, not styling suggestions.

narrative stylequestion-first
densityoperational
annotation policyminimal
legend policydirect-labels-only
highlight policysingle
decision styleevidence-only
reading timeglance
charts per page4

Occasions

live dashboardscontrol-room screensdark BI pagesmonitoring walls

Chrome

no kicker, no eyebrow; the title stands alone.

Palette

RoleHex
background#101418
panel#1A2026
ink#E6EDF3
body#9FB0BE
hairline#2A323A
gridline#2A323A
primary#F0B429
muted#5C6B78
benchmark#9FB0BE
positive#3FB68B
negative#E5534B
info#58A6FF

Fonts

Display: 'Segoe UI',Arial,sans-serif, weight 600.
Body: 'Segoe UI',Arial,sans-serif, weight 400.

Voice

How a page in this language reads. The universal prose laws (FN-07) apply first, then this register. The validator checks that the block below obeys its own caps.

DL-08 SENTINEL Watch without distraction.

The instrument voice. SENTINEL barely writes. Words on a monitoring wall are instrumentation: label, value, state, timestamp. A full sentence on a SENTINEL screen means something has already gone wrong, and even then it gets one line.

register: label vocabulary, closed setmood: stateful, uppercase labelshedging: impossible by constructionsentence cap: 10 wordstitle cap: 10 words
Title grammar
LABEL: STATE, from a closed set of three states.
STATION 4 PRESSURE: WATCH. TRENDING +2%/H SINCE 06:00.
Do
  • Fix the label vocabulary once per screen family.Operators scan by position and word shape, and drift breaks the scan.
  • Timestamp every state.A state with no as-of time is a guess on a live wall.
  • Keep the state set closed at three levels.Fast scanning needs categories, not shades of concern.
Do not
  • No sentences except the alert line.Low cognitive load is the law of this language, and prose is load.
  • No synonyms for a state, ever."STABLE" next to "NOMINAL" forces a mental join at a glance.
  • No reassurance copy.The absence of alerts is the reassurance.
The same point, two voices
Generic machine prose

Everything appears to be running smoothly at the moment with no major issues detected across systems.

SENTINEL

ALL SYSTEMS NOMINAL, 09:42. LAST INCIDENT 14H AGO. WATCH: STATION 4 PRESSURE, +2%/H.

The language in use

Six chart objects rendered from the same golden data as every other language. Only the token file differs.

CH-RNK-01 BAR-H
Electrical holds 34 of 109 open items, the largest single backlog Electrical 34 items Mechanical 28 Piping 21 Instrumentation 17 Civil 9 Source: sample dataset v1, 2026-07-12
CH-TIM-01 LINE
Actual progress reached 62% in June, 9 points behind plan 0 20 40 60 80% Jan Feb Mar Apr May Jun Plan Actual gap widens from April Source: sample dataset v1, 2026-07-12
CH-PTW-01 STACKED BAR
Delivered goods reached 1,284 in week 28, 90% of all items 1036 items W25 1127 W26 1257 W27 1421 W28 Delivered In transit Pending Source: sample dataset v1, 2026-07-12
CH-DEV-04 SURPLUS/DEFICIT AREA
Output ran 8% under plan at the June trough -15 -10 -5 +5 +10 +15% Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Source: production ledger, Dec
CH-DST-07 BEESWARM
One lot sits at 62 days, twice the next slowest Lot 88 62 days 0 20 40 60 80days Source: customs log, wk 28
CH-TAB-01 STATUS MATRIX
Two of five systems are handover-ready; System D is critical in test INSTALL TEST PUNCH HANDOVER System A COMPLETE COMPLETE COMPLETE COMPLETE System B COMPLETE COMPLETE COMPLETE COMPLETE System C COMPLETE ON TRACK WATCH - System D COMPLETE CRITICAL - - System E ON TRACK WATCH - - Source: sample dataset v1, 2026-07-12