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skills/html-ppt-taste-brutalist/SKILL.md
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---
name: html-ppt-taste-brutalist
description: 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).
---
# 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](https://github.com/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.
- **Phosphor noise:** optional SVG-grain pseudo-element, opacity ≤ `0.06`.
- **Slide chrome:** every slide carries top register strip — classification, slide ID, timestamp, coordinates — and a bottom bar with serial number + page.
## Banned
- `border-radius` above 0.
- Drop shadows, gradients, glassmorphism, glow.
- Color other than charcoal, phosphor, hazard red, and at most one terminal-green element.
- Sans-serif body fonts. Monospace is the body.
- Pitch-deck "delight" — emoji, illustration, stock photography, friendly icons.
- Light-mode slides anywhere in the same deck.
- Slide transitions other than instant cuts.
## Required slide archetypes (10–14 total)
1. **Classification cover** — giant numeral or call-sign on the left, redaction bar above the title, mono meta column on the right.
2. **Briefing strip** — eight-cell mono register with mission ID, dates, principals, classification.
3. **Numbered objectives** — three to five hairline-separated theses, each with `>>>` marker.
4. **Telemetry grid** — `display: grid; gap: 1px` of mono key-value cells; red highlight on the variant that breaks the trend.
5. **Threat / risk register** — hairline table with severity column in red.
6. **Sequence / timeline** — vertical mono list, 2-px vertical rule on the left, hazard markers on critical events.
7. **Diagram / wiring** — pure-CSS box-and-line schematic; rectangles with hairlines, ASCII arrows.
8. **Specimen** — single mono character or word at viewport-bleeding scale, used as a visual fulcrum.
9. **Alert** — diagonal hazard-stripe block (`repeating-linear-gradient(135deg, ...)`) with the most important sentence in the deck.
10. **Audit log** — append-only mono entries with timestamp + actor + event.
11. **Closing colophon** — operator, system, build, classification, sign-off line.
## Motion
This aesthetic is mechanical and instant.
- Cuts between slides — no fades. Optionally a 60ms flicker (`opacity: 0.85 → 1`).
- A blinking caret on the cover (`▌`) and a single pulse on the live status dot. Nothing else moves.
## Pre-flight
- [ ] Substrate is charcoal, foreground is phosphor, only accent is hazard red
- [ ] All `border-radius` is 0; all corners are 90°
- [ ] Title slide includes classification + serial + timestamp + coordinates
- [ ] At least one `display: grid; gap: 1px` telemetry module
- [ ] Scanline overlay applied as fixed pointer-events-none element, opacity ≤ 0.08
- [ ] At least one diagonal hazard-stripe alert block
- [ ] ASCII syntax decoration (`[ ... ]`, `>>>`, `///`) appears at least four times across the deck
- [ ] Numeric data uses tabular-nums + monospace
- [ ] No emojis, no curves, no gradients, no shadow effects
- [ ] Terminal green appears on zero or one element only — never as text body color
skills/html-ppt-taste-brutalist/example.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>OPN-04 // INCIDENT TELEMETRY · CLASSIFIED INTERNAL</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Archivo+Black&family=JetBrains+Mono:wght@400;500;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap" rel="stylesheet">
<style>
:root {
--crt: #0B0B0B;
--crt-2: #131312;
--phos: #ECECEA;
--phos-soft: #9F9F9C;
--phos-mute: #6A6A67;
--rule: #2A2A27;
--rule-strong: #3A3A36;
--hazard: #E61919;
--hazard-soft: rgba(230,25,25,0.12);
--green: #4AF626;
--display: 'Archivo Black', 'Inter', sans-serif;
--mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
background: var(--crt);
color: var(--phos);
font-family: var(--mono);
font-size: 13px;
line-height: 1.55;
-webkit-font-smoothing: antialiased;
font-feature-settings: "tnum";
overflow-x: hidden;
}
/* Fixed CRT scanlines + phosphor noise overlay */
body::before {
content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 200;
background: repeating-linear-gradient(0deg, transparent 0 2px, rgba(0,0,0,0.18) 2px 3px);
mix-blend-mode: multiply;
opacity: 0.55;
}
body::after {
content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 199;
background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.45) 100%);
}
/* ==== Deck system ==== */
.deck { position: relative; width: 100vw; }
.slide {
position: relative;
width: 100vw; height: 100vh; min-height: 720px;
padding: 56px 64px 72px;
display: flex; flex-direction: column;
overflow: hidden;
page-break-after: always;
background: var(--crt);
}
.slide + .slide { border-top: 1px solid var(--rule); }
/* ==== Slide chrome ==== */
.topbar {
position: absolute; top: 0; left: 0; right: 0;
padding: 10px 24px;
border-bottom: 1px solid var(--rule);
display: grid;
grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr 1fr;
gap: 22px;
font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase;
color: var(--phos-soft);
background: var(--crt-2);
}
.topbar b { color: var(--phos); font-weight: 500; }
.topbar .red { color: var(--hazard); }
.topbar .blink { animation: blink 1.4s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0.25; } }
.botbar {
position: absolute; bottom: 0; left: 0; right: 0;
padding: 10px 24px;
border-top: 1px solid var(--rule);
display: flex; justify-content: space-between; align-items: center;
font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase;
color: var(--phos-soft);
background: var(--crt-2);
}
.botbar .red { color: var(--hazard); }
.botbar .seg { display: inline-flex; gap: 14px; }
.botbar .seg b { color: var(--phos); font-weight: 500; }
.ascii-frame {
display: inline-flex; align-items: center; gap: 10px;
font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--hazard);
}
.ascii-frame::before { content: '['; }
.ascii-frame::after { content: ']'; }
.redact {
display: inline-block;
background: var(--hazard); color: var(--crt);
padding: 3px 10px;
font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.22em; text-transform: uppercase; font-weight: 600;
}
.stamp {
display: inline-block;
border: 1px solid var(--hazard); color: var(--hazard);
padding: 4px 10px;
font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
}
/* ==== Headline ==== */
h1.title, h2.title {
font-family: var(--display);
font-weight: 400;
text-transform: uppercase;
letter-spacing: -0.04em;
line-height: 0.9;
margin: 0;
color: var(--phos);
}
h1.title { font-size: clamp(64px, 7.6vw, 112px); max-width: 18ch; }
h2.title { font-size: clamp(48px, 5.6vw, 80px); max-width: 18ch; }
h2.title .red { color: var(--hazard); }
.lede { font-family: var(--mono); font-size: 14px; line-height: 1.65; color: var(--phos-soft); max-width: 78ch; margin: 0; }
.label { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--hazard); }
/* ==== 01 · COVER ==== */
.cover { justify-content: center; }
.cover .grid {
display: grid; grid-template-columns: 1.2fr 1fr;
align-items: center;
gap: 64px;
}
.cover .num {
font-family: var(--display);
font-size: clamp(220px, 32vw, 460px);
line-height: 0.78;
letter-spacing: -0.07em;
color: var(--phos);
position: relative;
}
.cover .num .caret { color: var(--hazard); animation: blink 1s steps(1) infinite; }
.cover .meta-col { display: flex; flex-direction: column; gap: 22px; }
.cover .meta-col h1 { margin: 0; }
.cover .meta-stamps { display: flex; gap: 12px; flex-wrap: wrap; }
.cover dl {
display: grid; grid-template-columns: 16ch 1fr; gap: 8px 16px;
margin: 0; font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
border-top: 1px solid var(--rule); padding-top: 18px;
}
.cover dl dt { color: var(--hazard); }
.cover dl dd { margin: 0; color: var(--phos); }
/* ==== 02 · BRIEFING STRIP ==== */
.briefing { justify-content: flex-start; padding-top: 96px; }
.briefing h2 { margin-bottom: 28px; }
.briefing .strip {
margin-top: 32px;
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 1px;
background: var(--rule);
border: 1px solid var(--rule);
}
.briefing .cell { background: var(--crt); padding: 22px 22px 26px; }
.briefing .cell .k { color: var(--hazard); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 8px; display: block; }
.briefing .cell .v { font-family: var(--display); font-size: 28px; line-height: 1; letter-spacing: -0.03em; text-transform: uppercase; color: var(--phos); }
.briefing .cell .v small { display: block; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; color: var(--phos-soft); margin-top: 6px; font-weight: 400; }
.briefing .lede { margin-top: 28px; }
/* ==== 03 · OBJECTIVES ==== */
.objectives { padding-top: 96px; }
.objectives h2 { margin-bottom: 28px; }
.objectives .list {
border-top: 1px solid var(--rule);
margin-top: 28px;
}
.objectives .item {
display: grid;
grid-template-columns: 6ch 1fr 14ch;
align-items: baseline;
gap: 28px;
padding: 18px 0;
border-bottom: 1px solid var(--rule);
}
.objectives .item .n {
font-family: var(--display); font-size: 32px; line-height: 1; letter-spacing: -0.03em; color: var(--phos);
}
.objectives .item .arrow { color: var(--hazard); margin-right: 10px; letter-spacing: 0.1em; }
.objectives .item h4 {
font-family: var(--display); font-size: 22px; line-height: 1.1; letter-spacing: -0.02em; text-transform: uppercase;
margin: 0 0 6px; font-weight: 400;
}
.objectives .item p { font-size: 13px; color: var(--phos-soft); line-height: 1.6; max-width: 72ch; margin: 0; }
.objectives .item .tag {
text-align: right; font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--hazard);
}
/* ==== 04 · TELEMETRY GRID ==== */
.telemetry { padding-top: 96px; }
.telemetry h2 { margin-bottom: 24px; }
.telemetry .grid {
margin-top: 32px;
display: grid;
grid-template-columns: repeat(6, 1fr);
grid-auto-rows: 130px;
gap: 1px;
background: var(--rule);
border: 1px solid var(--rule);
}
.telemetry .tcell { background: var(--crt); padding: 18px 20px; display: flex; flex-direction: column; justify-content: space-between; }
.telemetry .tcell .k { font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--phos-mute); }
.telemetry .tcell .v { font-family: var(--display); font-size: 38px; line-height: 1; letter-spacing: -0.04em; color: var(--phos); }
.telemetry .tcell .v small { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--phos-soft); margin-left: 4px; font-weight: 400; }
.telemetry .tcell.alert { background: var(--hazard-soft); }
.telemetry .tcell.alert .k { color: var(--hazard); }
.telemetry .tcell.alert .v { color: var(--hazard); }
.telemetry .tcell .delta { font-size: 11px; letter-spacing: 0.06em; color: var(--hazard); margin-top: 4px; }
.telemetry .tcell .delta.ok { color: var(--phos-soft); }
.telemetry .tcell.live { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 12px; letter-spacing: 0.18em; }
.telemetry .live-dot {
width: 8px; height: 8px; background: var(--green);
box-shadow: 0 0 10px rgba(74,246,38,0.55);
animation: pulse 1.6s steps(1) infinite;
}
@keyframes pulse { 50% { opacity: 0.3; box-shadow: 0 0 0 rgba(74,246,38,0); } }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.row-2 { grid-row: span 2; }
/* ==== 05 · RISK REGISTER ==== */
.risk { padding-top: 96px; }
.risk h2 { margin-bottom: 28px; }
.risk .table {
margin-top: 28px;
display: grid;
grid-template-columns: 4ch 1.6fr 1fr 8ch 8ch 1fr;
gap: 1px;
background: var(--rule);
border: 1px solid var(--rule);
font-size: 12.5px; letter-spacing: 0.04em;
}
.risk .table > div { background: var(--crt); padding: 12px 14px; }
.risk .table .h {
background: var(--phos); color: var(--crt);
font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 600;
}
.risk .table .right { text-align: right; }
.risk .table .sev-hi { color: var(--hazard); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }
.risk .table .sev-md { color: #E0A819; text-transform: uppercase; letter-spacing: 0.1em; }
.risk .table .sev-lo { color: var(--phos-soft); text-transform: uppercase; letter-spacing: 0.1em; }
/* ==== 06 · TIMELINE ==== */
.timeline { padding-top: 96px; }
.timeline h2 { margin-bottom: 24px; }
.timeline .seq {
margin-top: 28px;
border-left: 2px solid var(--phos);
padding-left: 28px;
display: flex; flex-direction: column; gap: 18px;
}
.timeline .ev {
display: grid; grid-template-columns: 14ch 1fr 12ch; gap: 22px; align-items: baseline;
position: relative;
padding-bottom: 4px;
}
.timeline .ev::before {
content: ''; position: absolute; left: -36px; top: 8px; width: 14px; height: 1px; background: var(--phos);
}
.timeline .ev.crit::before { background: var(--hazard); height: 2px; top: 7px; }
.timeline .ev .ts { color: var(--phos-soft); font-size: 12px; letter-spacing: 0.06em; }
.timeline .ev .body { font-size: 13.5px; color: var(--phos); line-height: 1.5; max-width: 64ch; }
.timeline .ev.crit .body { color: var(--phos); }
.timeline .ev .actor { font-size: 11px; text-align: right; letter-spacing: 0.14em; text-transform: uppercase; color: var(--phos-soft); }
.timeline .ev.crit .actor { color: var(--hazard); }
/* ==== 07 · DIAGRAM ==== */
.diagram { padding-top: 96px; }
.diagram h2 { margin-bottom: 28px; }
.diagram .schematic {
margin-top: 28px;
display: grid;
grid-template-columns: repeat(5, 1fr);
grid-template-rows: 100px 64px 100px;
gap: 0;
align-items: stretch;
font-size: 11.5px;
letter-spacing: 0.1em;
text-transform: uppercase;
}
.diagram .box {
border: 1px solid var(--phos);
padding: 10px 14px;
display: flex; flex-direction: column; justify-content: center;
color: var(--phos);
font-size: 11.5px; letter-spacing: 0.16em;
}
.diagram .box b { display: block; font-family: var(--display); font-size: 16px; letter-spacing: -0.02em; text-transform: uppercase; color: var(--phos); margin-bottom: 4px; }
.diagram .box.alert { border-color: var(--hazard); color: var(--hazard); }
.diagram .box.alert b { color: var(--hazard); }
.diagram .arrow {
display: flex; align-items: center; justify-content: center;
color: var(--hazard);
font-family: var(--mono); font-size: 18px; letter-spacing: 0.1em;
}
.diagram .vbar {
display: flex; justify-content: center; align-items: stretch;
}
.diagram .vbar::before { content: ''; width: 1px; background: var(--phos); }
/* ==== 08 · SPECIMEN ==== */
.specimen { justify-content: center; align-items: flex-start; padding-top: 110px; }
.specimen .display {
font-family: var(--display);
font-size: clamp(140px, 22vw, 360px);
line-height: 0.82;
letter-spacing: -0.06em;
text-transform: uppercase;
color: var(--phos);
max-width: 100%;
}
.specimen .display .red { color: var(--hazard); }
.specimen .footnote {
margin-top: 28px;
font-size: 12px; letter-spacing: 0.06em;
color: var(--phos-soft); max-width: 64ch;
}
/* ==== 09 · ALERT ==== */
.alert-slide { justify-content: center; }
.alert-slide .alertbox {
margin-top: 12px;
padding: 56px 48px;
border: 2px solid var(--hazard);
background:
repeating-linear-gradient(135deg, transparent 0 18px, rgba(230,25,25,0.08) 18px 36px);
display: grid; grid-template-columns: 22ch 1fr; gap: 40px;
align-items: start;
}
.alert-slide .alertbox .glyph {
font-family: var(--display); font-size: clamp(100px, 14vw, 220px); line-height: 0.86; letter-spacing: -0.06em;
color: var(--hazard); text-transform: uppercase;
}
.alert-slide .alertbox h3 {
font-family: var(--display); font-size: clamp(28px, 3.2vw, 44px); line-height: 1.1; letter-spacing: -0.025em;
text-transform: uppercase; margin: 0 0 18px; color: var(--phos);
}
.alert-slide .alertbox p { font-size: 14px; line-height: 1.65; color: var(--phos); margin: 0 0 14px; max-width: 56ch; }
.alert-slide .alertbox p strong { background: var(--hazard); color: var(--crt); padding: 1px 6px; font-weight: 500; }
/* ==== 10 · AUDIT LOG ==== */
.audit { padding-top: 96px; }
.audit h2 { margin-bottom: 24px; }
.audit .log {
margin-top: 32px;
border: 1px solid var(--rule);
background: #050505;
padding: 22px 26px;
font-size: 12.5px; line-height: 1.7;
}
.audit .log .row { display: grid; grid-template-columns: 14ch 12ch 1fr 14ch; gap: 16px; padding: 4px 0; border-top: 1px dashed var(--rule); }
.audit .log .row:first-child { border-top: none; }
.audit .log .ts { color: var(--phos-mute); }
.audit .log .actor { color: var(--phos); }
.audit .log .ev { color: var(--phos-soft); }
.audit .log .ev.crit { color: var(--hazard); }
.audit .log .sig { color: var(--phos-mute); text-align: right; letter-spacing: 0.06em; }
/* ==== 11 · COLOPHON ==== */
.colophon-slide { padding-top: 96px; }
.colophon-slide h2 { margin-bottom: 24px; }
.colophon-slide .grid { margin-top: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.colophon-slide dl {
margin: 0; display: grid; grid-template-columns: 16ch 1fr; gap: 10px 18px;
font-size: 12px; letter-spacing: 0.06em;
}
.colophon-slide dt { color: var(--hazard); text-transform: uppercase; letter-spacing: 0.18em; font-size: 11px; }
.colophon-slide dd { margin: 0; color: var(--phos); }
.colophon-slide .signoff {
margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--rule);
font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--phos-soft);
display: flex; justify-content: space-between;
}
/* responsive nicety for narrow screens */
@media (max-width: 880px) {
.slide { padding: 56px 22px 72px; }
.topbar { grid-template-columns: 1.4fr 1fr 1fr; gap: 12px; }
.topbar > *:nth-child(n+4) { display: none; }
.cover .grid { grid-template-columns: 1fr; }
.cover .num { font-size: 36vw; }
.briefing .strip { grid-template-columns: 1fr 1fr; }
.telemetry .grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 100px; }
.span-2, .span-3, .row-2 { grid-column: span 1; grid-row: auto; }
.risk .table { grid-template-columns: 4ch 1fr 1fr; font-size: 11px; }
.risk .table > div:nth-child(6n+4),
.risk .table > div:nth-child(6n+5),
.risk .table > div:nth-child(6n) { display: none; }
.diagram .schematic { grid-template-columns: 1fr; grid-template-rows: auto; }
.diagram .arrow, .diagram .vbar { display: none; }
.alert-slide .alertbox { grid-template-columns: 1fr; padding: 32px 22px; }
}
</style>
</head>
<body>
<div class="deck">
<!-- 01 · COVER -->
<section class="slide cover">
<div class="topbar">
<div><b>OPN-04</b> · INCIDENT TELEMETRY</div>
<div>SLIDE <b>01 / 11</b></div>
<div>2026.05.14 · 04:12Z</div>
<div>44.8404°N · −0.5805°W</div>
<div class="red">⬤ <span class="blink">CLASSIFIED · INTERNAL</span></div>
<div>OPERATOR · Q.ALBRECHT</div>
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<div class="grid">
<div class="num">04<span class="caret">▌</span></div>
<div class="meta-col">
<div class="meta-stamps">
<span class="redact">▮▮▮▮ DECL ▮▮▮▮</span>
<span class="stamp">SEV · CRITICAL</span>
<span class="stamp">PKT · 04 / 11</span>
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<h1 class="title">Incident Telemetry &mdash; <span style="color: var(--hazard);">Operation Halcyon</span></h1>
<p class="lede">Field debrief for the runtime outage on 2026.05.13 — 03:18Z to 06:41Z. Eleven slides. No friendly icons. Read top to bottom.</p>
<dl>
<dt>Mission</dt><dd>OPN-04 / OPERATION HALCYON</dd>
<dt>Operator</dt><dd>Q. Albrecht · Incident Commander</dd>
<dt>System</dt><dd>halcyon-runtime · v 2026.05.06</dd>
<dt>Cell</dt><dd>EU-WEST-3 · BORDEAUX-A</dd>
<dt>Distribution</dt><dd>internal · oncall · founders</dd>
</dl>
</div>
</div>
<div class="botbar">
<div class="seg"><span>SERIAL <b>OPN-04 / 0731</b></span><span>VOL <b>04</b></span><span>ISS <b>2026.05</b></span></div>
<div class="seg"><span>PAGE <b>01 / 11</b></span><span class="red">⬤ TRANSMITTING</span></div>
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<!-- 02 · BRIEFING STRIP -->
<section class="slide briefing">
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<div><b>OPN-04</b> · BRIEFING</div>
<div>SLIDE <b>02 / 11</b></div>
<div>STAGE · 01</div>
<div>SECTION · OVERVIEW</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
</div>
<span class="ascii-frame">02 / mission briefing</span>
<h2 class="title">Three hours, twenty-three minutes, sixty-four percent of <span class="red">tier-3</span> traffic.</h2>
<div class="strip">
<div class="cell"><span class="k">window</span><span class="v">3h 23m<small>03:18Z → 06:41Z</small></span></div>
<div class="cell"><span class="k">tier hit</span><span class="v" style="color: var(--hazard);">tier-3<small>research-agent</small></span></div>
<div class="cell"><span class="k">tasks failed</span><span class="v">14,820<small>17.3% of window</small></span></div>
<div class="cell"><span class="k">refunded</span><span class="v">€ 4,840<small>auto · within 24h</small></span></div>
<div class="cell"><span class="k">root cause</span><span class="v">DNS cache<small>upstream provider 04</small></span></div>
<div class="cell"><span class="k">resolved at</span><span class="v">06:41Z<small>by Q. Albrecht</small></span></div>
<div class="cell"><span class="k">postmortem</span><span class="v">CIRC-04<small>filed 2026.05.14</small></span></div>
<div class="cell"><span class="k">action items</span><span class="v" style="color: var(--hazard);">07 open<small>03 critical · 04 medium</small></span></div>
</div>
<p class="lede" style="margin-top: 28px;">A regional DNS provider returned stale records for 3h 23m. Halcyon's resolver pinned to one of three upstream providers; the failover threshold was set too high. Tier-3 (research) clients with aggressive retry policies amplified failure into customer-visible errors. Customers on tier-1 (transactional) saw degradation but no failure.</p>
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<div class="seg"><span>SERIAL <b>OPN-04 / 0732</b></span></div>
<div class="seg"><span>PAGE <b>02 / 11</b></span></div>
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<!-- 03 · OBJECTIVES -->
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<div><b>OPN-04</b> · OBJECTIVES</div>
<div>SLIDE <b>03 / 11</b></div>
<div>STAGE · 02</div>
<div>SECTION · DEBRIEF</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
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<span class="ascii-frame">03 / debrief objectives</span>
<h2 class="title">Five lines we will <span class="red">defend</span> in writing this week.</h2>
<div class="list">
<div class="item">
<div class="n">01</div>
<div>
<h4><span class="arrow">>>></span>Resolver failover threshold drops from 600 ms to 180 ms.</h4>
<p>Currently we wait until the upstream provider misses six hundred milliseconds of probes before failing over to provider 02. The new threshold ratifies a single missed probe at 180 ms.</p>
</div>
<div class="tag">CRIT · 14d</div>
</div>
<div class="item">
<div class="n">02</div>
<div>
<h4><span class="arrow">>>></span>Three independent DNS providers, weighted equally.</h4>
<p>The pin to provider 04 was a vestige from the 2025 cost review. We move to a three-way Anycast resolver, weighted equally, with provider failure quarantined for 30 minutes after a missed probe.</p>
</div>
<div class="tag">CRIT · 21d</div>
</div>
<div class="item">
<div class="n">03</div>
<div>
<h4><span class="arrow">>>></span>Tier-3 clients get retry budgets, not retry loops.</h4>
<p>Research-agent clients amplified failure 4.6× by retrying inside the failure window. We expose a budget — N retries per 60s — and refuse beyond it with an explicit, customer-readable error.</p>
</div>
<div class="tag">CRIT · 30d</div>
</div>
<div class="item">
<div class="n">04</div>
<div>
<h4><span class="arrow">>>></span>Refunds are automated, not gestured.</h4>
<p>The 4,840 € refund cycle was hand-cranked by two engineers between 04:30 and 09:00. We codify a refund pipeline keyed to tier × failure-class × duration, with an audit log and a postmortem hook.</p>
</div>
<div class="tag">MED · 45d</div>
</div>
<div class="item">
<div class="n">05</div>
<div>
<h4><span class="arrow">>>></span>Status page reads like a sentence, not a heatmap.</h4>
<p>During the window, the status page showed eight green pills and one yellow chevron. The customer's experience was "everything is on fire." We replace the dashboard with a one-paragraph human summary, updated every 10 minutes.</p>
</div>
<div class="tag">MED · 30d</div>
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<!-- 04 · TELEMETRY GRID -->
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<div><b>OPN-04</b> · TELEMETRY</div>
<div>SLIDE <b>04 / 11</b></div>
<div>STAGE · 03</div>
<div>SECTION · METRICS</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
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<span class="ascii-frame">04 / telemetry · 24h window</span>
<h2 class="title">Numbers from the <span class="red">window</span>.</h2>
<div class="grid">
<div class="tcell row-2 alert">
<span class="k">tier-3 · failure rate</span>
<span class="v">17.3<small>%</small></span>
<span class="delta">▲ +14.6 pp vs baseline · CRIT</span>
</div>
<div class="tcell"><span class="k">tier-1 · failure</span><span class="v">0.04<small>%</small></span><span class="delta ok">▲ +0.02 pp · within slo</span></div>
<div class="tcell"><span class="k">tier-2 · failure</span><span class="v">0.61<small>%</small></span><span class="delta ok">▲ +0.4 pp · within slo</span></div>
<div class="tcell"><span class="k">p99 · resolver</span><span class="v">3,180<small>ms</small></span><span class="delta">▲ x 41 vs baseline</span></div>
<div class="tcell"><span class="k">retries · 24h</span><span class="v">68k<small>·×4.6</small></span><span class="delta">▲ amplification</span></div>
<div class="tcell"><span class="k">refunds</span><span class="v">€4,840</span><span class="delta ok">manual · 04:30 → 09:00</span></div>
<div class="tcell"><span class="k">paged engineers</span><span class="v">04<small>oncall</small></span><span class="delta ok">3 ack &lt; 5min · 1 &lt; 12min</span></div>
<div class="tcell"><span class="k">customer tickets</span><span class="v">37</span><span class="delta">▲ x 11 vs baseline</span></div>
<div class="tcell live"><span class="live-dot"></span><span style="color: var(--green);">resolver healthy · 7d 14h</span></div>
<div class="tcell"><span class="k">tasks dropped</span><span class="v">14,820</span><span class="delta">▲ refunded auto-12h</span></div>
</div>
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<div class="seg"><span>SERIAL <b>OPN-04 / 0734</b></span></div>
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<!-- 05 · RISK REGISTER -->
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<div><b>OPN-04</b> · RISK REGISTER</div>
<div>SLIDE <b>05 / 11</b></div>
<div>STAGE · 04</div>
<div>SECTION · POSTURE</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
</div>
<span class="ascii-frame">05 / open risks · halcyon runtime</span>
<h2 class="title">Open risks, scored against the <span class="red">runtime</span>.</h2>
<div class="table">
<div class="h">№</div><div class="h">risk</div><div class="h">vector</div><div class="h">sev</div><div class="h">prob</div><div class="h">owner / due</div>
<div>R-01</div><div>Single-provider DNS resolver pin</div><div>infra · routing</div><div class="sev-hi">crit</div><div class="right">0.42</div><div>Q.ALB · 2026.05.28</div>
<div>R-02</div><div>Tier-3 retry amplification (no budget)</div><div>client · sdk</div><div class="sev-hi">crit</div><div class="right">0.31</div><div>H.NAI · 2026.06.10</div>
<div>R-03</div><div>Refund pipeline manual</div><div>finance · ops</div><div class="sev-md">med</div><div class="right">0.55</div><div>P.NWA · 2026.06.20</div>
<div>R-04</div><div>Status page is a heatmap, not a sentence</div><div>comms</div><div class="sev-md">med</div><div class="right">0.61</div><div>L.ARR · 2026.06.20</div>
<div>R-05</div><div>Audit log not subpoena-grade</div><div>legal</div><div class="sev-md">med</div><div class="right">0.18</div><div>P.NWA · 2026.07.01</div>
<div>R-06</div><div>EU-WEST-3 single-cell deployment</div><div>infra · region</div><div class="sev-lo">lo</div><div class="right">0.06</div><div>Q.ALB · 2026.Q4</div>
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<div class="seg"><span>SERIAL <b>OPN-04 / 0735</b></span></div>
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<!-- 06 · TIMELINE -->
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<div><b>OPN-04</b> · SEQUENCE</div>
<div>SLIDE <b>06 / 11</b></div>
<div>STAGE · 05</div>
<div>SECTION · TIMELINE</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
</div>
<span class="ascii-frame">06 / event sequence · 03:18Z → 06:41Z</span>
<h2 class="title">Sequence of <span class="red">events</span>.</h2>
<div class="seq">
<div class="ev"><span class="ts">03:18:04Z</span><div class="body">Upstream provider 04 begins returning stale A records for runtime.halcyon.io.</div><div class="actor">— PROVIDER-04</div></div>
<div class="ev"><span class="ts">03:19:11Z</span><div class="body">Resolver retries against pinned provider 04. p99 climbs to 1,840 ms within sixty-seven seconds.</div><div class="actor">— RESOLVER</div></div>
<div class="ev crit"><span class="ts">03:21:48Z</span><div class="body">Tier-3 (research-agent) clients begin retry storm. Failure rate breaches the 5% page threshold; oncall pages four engineers.</div><div class="actor">— PAGER · CRIT</div></div>
<div class="ev"><span class="ts">03:24:02Z</span><div class="body">Q. Albrecht acks the page from Bordeaux. H. Naitō from Munich at 03:24:18Z. Two more engineers within nine minutes.</div><div class="actor">— Q.ALB · H.NAI</div></div>
<div class="ev crit"><span class="ts">03:38:00Z</span><div class="body">First public status update posted: "We are investigating elevated errors on the runtime." Status page does not yet reflect the severity.</div><div class="actor">— STATUS · CRIT</div></div>
<div class="ev"><span class="ts">04:01:22Z</span><div class="body">Root cause narrowed to provider 04 DNS. Manual failover to provider 02 begins.</div><div class="actor">— Q.ALB</div></div>
<div class="ev"><span class="ts">04:30:00Z</span><div class="body">Refund triage begins. Hand-rolled SQL against the audit log identifies 14,820 dropped tasks across 312 customers.</div><div class="actor">— P.NWA</div></div>
<div class="ev crit"><span class="ts">06:41:09Z</span><div class="body">Failover complete. Failure rate returns to baseline. Public status updated. Postmortem CIRC-04 opened.</div><div class="actor">— ALL · CLEAR</div></div>
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<!-- 07 · DIAGRAM -->
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<div><b>OPN-04</b> · WIRING</div>
<div>SLIDE <b>07 / 11</b></div>
<div>STAGE · 06</div>
<div>SECTION · DIAGRAM</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
</div>
<span class="ascii-frame">07 / resolver · before / after</span>
<h2 class="title">Resolver — <span class="red">before</span> &amp; after.</h2>
<div class="schematic">
<div class="box"><b>SDK</b>tier-1 client</div>
<div class="arrow">━━▶</div>
<div class="box"><b>RESOLVER</b>halcyon · pinned</div>
<div class="arrow">━━▶</div>
<div class="box alert"><b>PROVIDER 04</b>upstream · STALE</div>
<div class="vbar"></div>
<div></div>
<div class="vbar"></div>
<div></div>
<div class="vbar"></div>
<div class="box"><b>SDK</b>tier-3 retry storm</div>
<div class="arrow">━━▶</div>
<div class="box alert"><b>RESOLVER</b>p99 · 3,180 ms</div>
<div class="arrow">━━▶</div>
<div class="box alert"><b>14,820 TASKS</b>dropped · 17.3%</div>
</div>
<p class="lede" style="margin-top: 32px;">After: resolver is unpinned and weighted across providers 02 / 04 / 07. Failover threshold drops to 180 ms. Tier-3 retry budget caps amplification at ×1.4. The bottom row of this diagram never gets drawn again.</p>
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<!-- 08 · SPECIMEN -->
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<div><b>OPN-04</b> · SPECIMEN</div>
<div>SLIDE <b>08 / 11</b></div>
<div>STAGE · 07</div>
<div>SECTION · TYPOGRAPHY</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
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<span class="ascii-frame">08 / single specimen · cause</span>
<div class="display">DNS<span class="red">.</span></div>
<p class="footnote">A three-letter root cause for an eleven-slide debrief — set in Archivo Black at clamp(140px, 22vw, 360px), tracking −0.06em, leading 0.82. The hazard period is the only part of this slide that is not phosphor white.</p>
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<!-- 09 · ALERT -->
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<div><b>OPN-04</b> · ALERT</div>
<div>SLIDE <b>09 / 11</b></div>
<div>STAGE · 08</div>
<div>SECTION · DECISION</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
</div>
<span class="ascii-frame">09 / single decision · ratify</span>
<div class="alertbox">
<div class="glyph">!!<br>RTFY</div>
<div>
<h3>Ratify the resolver redesign at <span style="color: var(--hazard);">close of business 2026.05.16</span>.</h3>
<p>If we delay the resolver redesign past Friday close, we re-enter the failure window with the same posture we left it in. The new policy is one ticket. The redesign is a fourteen-day commitment from Q.ALB &amp; H.NAI. <strong>This deck is the ratification artefact.</strong></p>
<p>Sign-off lines below. Anything not signed by 16.05.2026 17:00Z is escalated to the founders' weekly.</p>
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<div class="seg"><span>SERIAL <b>OPN-04 / 0739</b></span></div>
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<!-- 10 · AUDIT LOG -->
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<div><b>OPN-04</b> · AUDIT</div>
<div>SLIDE <b>10 / 11</b></div>
<div>STAGE · 09</div>
<div>SECTION · LOG</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
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<span class="ascii-frame">10 / audit log · CIRC-04 (excerpt)</span>
<h2 class="title">Audit log, <span class="red">verbatim</span>.</h2>
<div class="log">
<div class="row"><span class="ts">2026.05.13 03:21Z</span><span class="actor">PAGER</span><span class="ev crit">tier-3 failure rate &gt; 5% · 4 engineers paged</span><span class="sig">sha · 9f3a…b218</span></div>
<div class="row"><span class="ts">2026.05.13 03:24Z</span><span class="actor">Q.ALBRECHT</span><span class="ev">ack page · joined #incident-04</span><span class="sig">sha · 14ab…a022</span></div>
<div class="row"><span class="ts">2026.05.13 03:38Z</span><span class="actor">Q.ALBRECHT</span><span class="ev crit">status page · "investigating elevated errors"</span><span class="sig">sha · 56cf…d971</span></div>
<div class="row"><span class="ts">2026.05.13 04:01Z</span><span class="actor">H.NAITO</span><span class="ev">root cause narrowed · provider-04 DNS stale</span><span class="sig">sha · 04bb…f110</span></div>
<div class="row"><span class="ts">2026.05.13 04:12Z</span><span class="actor">Q.ALBRECHT</span><span class="ev">manual failover provider-04 → provider-02 initiated</span><span class="sig">sha · 17ee…0ad4</span></div>
<div class="row"><span class="ts">2026.05.13 04:30Z</span><span class="actor">P.NWACHUKWU</span><span class="ev">refund triage opened · 14,820 tasks queued</span><span class="sig">sha · ab21…8312</span></div>
<div class="row"><span class="ts">2026.05.13 06:41Z</span><span class="actor">Q.ALBRECHT</span><span class="ev crit">all-clear posted · CIRC-04 opened</span><span class="sig">sha · cc09…b745</span></div>
<div class="row"><span class="ts">2026.05.14 09:00Z</span><span class="actor">P.NWACHUKWU</span><span class="ev">refund pipeline complete · €4,840 across 312 customers</span><span class="sig">sha · 1a37…ee08</span></div>
<div class="row"><span class="ts">2026.05.14 14:22Z</span><span class="actor">Q.ALBRECHT</span><span class="ev">postmortem CIRC-04 published · 11 action items</span><span class="sig">sha · 4f12…c399</span></div>
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<!-- 11 · COLOPHON -->
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<div><b>OPN-04</b> · COLOPHON</div>
<div>SLIDE <b>11 / 11</b></div>
<div>STAGE · 10</div>
<div>SECTION · SIGN-OFF</div>
<div class="red">CLASSIFIED · INTERNAL</div>
<div>Q.ALBRECHT</div>
</div>
<span class="ascii-frame">11 / colophon &amp; sign-off</span>
<h2 class="title">Eleven slides, <span class="red">three names</span>, one&nbsp;decision.</h2>
<div class="grid">
<dl>
<dt>Operator</dt><dd>Q. Albrecht · Incident Commander · Bordeaux, FR</dd>
<dt>Witness</dt><dd>H. Naitō · Resolver Owner · Munich, DE</dd>
<dt>Counsel</dt><dd>P. Nwachukwu · Customer Refund Pipeline · Lagos, NG</dd>
<dt>Distribution</dt><dd>Internal · oncall · founders · CIRC-04</dd>
</dl>
<dl>
<dt>System</dt><dd>halcyon-runtime · build 2026.05.06</dd>
<dt>Set in</dt><dd>Archivo Black · JetBrains Mono · IBM Plex Mono</dd>
<dt>Press</dt><dd>Internal — 11pp · 16:9 · 2026.05.14 14:22Z</dd>
<dt>Classification</dt><dd>INTERNAL — do not redistribute outside oncall</dd>
<dt>Hash</dt><dd>OPN-04 · sha-256 · 4f12c399ab21d971...</dd>
</dl>
</div>
<div class="signoff">
<span>SIGNED Q.ALBRECHT · 2026.05.14 14:22Z</span>
<span class="red">END OF TRANSMISSION ///</span>
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