16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill `brutalist-skill` (Tactical Telemetry mode).
SkillScore36Maintained
Automatic
◆Frontend / UI pack
Last verified 8/2/2026
What it changes
Passed 8 of 22 test cases with the skill, and 3 of 22 without it.
Without skill14%
With skill36%
Checks it passed that the model alone missed
Sets border-radius to 0 across all elements.
Uses Archivo Black or Inter Black for slide titles.
Uses JetBrains Mono or IBM Plex Mono for body text.
and 9 more in the full report
7 fixed1 passed either way12 still failing2 broke
Pass-rate lift
+23 pp
Tokens
+45%
Agent turns
0%
Response time
+23%
Model gemini-3.6-flashMeasured 8/2/2026v18 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 7
Prompt
I need a 16:9 HTML slide deck for our quarterly infrastructure incident post-mortem. Build this as a tactical telemetry dark terminal report rather than a standard corporate pitch deck. Include a classification cover slide, incident timeline, telemetry data grids showing system metrics, threat analysis, and an append-only audit log at the end.
What was checked, without and with the skill
Checked
Without skill
With skill
Uses charcoal background colors #0A0A0A or #121212 rather than pure black or dark green.
Missed
Passed
Uses white phosphor #EAEAEA for primary body text instead of terminal green.
Missed
Passed
Uses Archivo Black or Inter Black for slide titles.
Missed
Passed
Sets border-radius to 0 across all elements.
Missed
Passed
case-01 · gemini-3.6-flash · 8/2/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md65 linessingle file
HTML PPT — Tactical Telemetry / CRT Terminal
A 16:9 deck for project debriefs, security reviews, infra incident write-ups, ops walkthroughs, and any "we are not selling, we are reporting" presentation. Reads like a declassified mission packet, not a pitch deck.
This skill commits to ONE substrate (dark CRT) — never mix with the light Swiss-print mode in the same artifact.
Source
Distilled from Leonxlnx/taste-skill — skills/brutalist-skill/SKILL.md §2.2 (Tactical Telemetry & CRT Terminal). Deck system follows the project's existing html-ppt convention (16:9 slides, vertical-stack fallback when opened directly).
Hard rules
Substrate: deactivated-CRT charcoal #0A0A0A / #121212. Never pure black.
Foreground: white phosphor #EAEAEA. Secondary #9A9A98.
Accent: ONE color — hazard red #E61919. Used on alerts, classifications, the latest data point. Never as a slide background fill.
Optional: terminal green #4AF626 for ONE specific UI element across the entire deck (e.g. a single status indicator). Omit if it doesn't earn its place.
Type: monospace dominates. JetBrains Mono / IBM Plex Mono for body and meta. Heavy condensed grotesque (Archivo Black / Inter Black) only for slide titles.
Title scale:clamp(56px, 7vw, 96px), uppercase, tracking -0.04em, leading 0.9.
Geometry:border-radius: 0. Visible 1px hairlines (#2A2A28 on charcoal). Use display: grid; gap: 1px over a hairline-colored background to render perfect cells.
Scanline overlay: subtle repeating-linear-gradient at 2px / 4px cycle, opacity ≤ 0.08, applied as a fixed pointer-events-none layer.