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Chronograph — 5,226 years of human history as a sourced JSON corpus, with Notebook/Stratum/Atlas frontend and EN→IS translation layer

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# Chronograph — Human History According to AI

> 5,226 years. One JSON per year. 99.85% of events name a source; every year declares which regions its sources do not reach.
> A year-by-year editorial folio of human civilisation, researched by AI.
> **Translations are up for grabs** — the Icelandic backfill (19/5,226 years done) and any new language. The pipeline is built; what's needed is native-speaker review. See [TRANSLATION.md](TRANSLATION.md).

**🌐 [timeline.sumarhus.com](https://timeline.sumarhus.com)** · [GitHub](https://github.com/Magnussmari/chronograph) · [MIT License](LICENSE) · [🇮🇸 Þýðingarverkefni](TRANSLATION.md)

![status](https://img.shields.io/badge/Phase_1-shipped-8a2b22?style=flat-square)
![status](https://img.shields.io/badge/Phase_2_evidence-7_eras_validated-3a4a6b?style=flat-square)
![status](https://img.shields.io/badge/Frontend-S--tier_·_E2E_+_CI-2a5237?style=flat-square)
![status](https://img.shields.io/badge/a11y-0_serious%2Fcritical-3a4a6b?style=flat-square)
![license](https://img.shields.io/badge/license-MIT-73788b?style=flat-square)

---

## Project status (2026-08-01) — parked, lanes open

Active sprinting is paused. The corpus validates 100%, the site is live and stable, and the open lanes below are documented well enough for anyone (human or agent) to pick up. The dated change record lives at **[timeline.sumarhus.com/updates](https://timeline.sumarhus.com/updates)** (source: `frontend/src/data/updates.ts`).

| Lane | State | Entry point |
|---|---|---|
| **Icelandic backfill** | 19/5,226 years translated; pipeline ready, ~$35 at batch pricing | [TRANSLATION.md](TRANSLATION.md) — **up for grabs** |
| **Any new language** | Pipeline is locale-generic; smaller languages especially welcome | [TRANSLATION.md](TRANSLATION.md) — **up for grabs** |
| **Phase 4 era research** | 3/21 eras have evidence dossiers; 18 open | `scripts/eras/registry-expansion-2026-07.json` |
| **Publishing migrated era dossiers** | 8 dossiers schema-valid but unpublished; needs a `phase2-migrated` UI treatment + editorial review | `evidence-layer/…/migrated-v1/MIGRATION-NOTES.md` |
| **Re-research of eras 05–08, 12** | Pre-schema files lack per-paper metrics; needs fresh Scite runs | same MIGRATION-NOTES |

---

## Three layers, one folio

| Layer | What it is | Shipped |
|---|---|---|
| **Layer 1 — Corpus** | 5,226 ICCRA-schema JSON files, one per year, 2025 CE → 3,200 BCE | ✅ 2026-04-13 |
| **Layer 2 — Evidence** | Scholarly deep-dives per era via the Scite MCP; 7 eras validated, 8 migrated to schema v1 (unpublished), 5 pending re-research, 21 newly registered and pending research | ✅ 2026-04-17, expanded 2026-07-29, migration pass 2026-07-31 |
| **Frontend — Chronograph** | Notebook editorial folio (reading), Stratum instrument view (per-year dashboard), Atlas orthographic globe (spatial), era scrubber + era selector — Next.js 16 + React 19 | ✅ 2026-04-18, UX pass 2026-07-29 |
| **Translation layer (EN → IS)** | CI-integrated pipeline localizing the corpus into Icelandic. Locked verbatim Icelandic system prompt, Gemini Flash 3 Preview pinned, six-guard correctness chain, idempotent SHA256 manifest, GitHub Action auto-translates on push | ✅ 2026-04-18 (pipeline); backfill paused at 19/5,226 years (0.36%) |

---

## Layer 1 — The Corpus (Phase 1 complete)

The daemon ran for **57.7 hours** across 2026-04-10 – 2026-04-13 and finished the entire corpus without a single failed year.

| Final metric | Value |
|---|---|
| **Years researched** | 5,226 / 5,226 (100%) |
| **Events documented** | 17,991 |
| **Graph edges** | 13,130 cross-year connections |
| **Failed years** | 0 |
| **Total runtime** | 57.7 hours |
| **Total API cost** | ~$15.68 (Sonnet 4.6 via batch API, ~$0.003/year) |
| **Model** | Claude Sonnet 4.6, exclusively |
| **Source attribution** | 99.85% of events name a source (17,964 of 17,991) |
| **Certainty distribution** | Confirmed 80.6%, probable 15.7%, approximate 3.5%, other 0.2% |

Every year is a structured JSON with events, primary sources, certainty levels, geographic-gap declarations, and cause-effect graph edges. See the **Methodology** page on the site for the full optimisation journey.

---

## Layer 2 — Scholarly Evidence (in progress)

After the year-level corpus shipped, a second complementary layer was built under `evidence-layer/`: scholarly-evidence deep-dives per scholarly era, produced via the Scite MCP with the `scite-preflight` / `scite-research` skill system.

| Phase | Eras | Status |
|---|---|---|
| **Phase 3 (schema v1.0.0)** | 7 (Archaic Greece, Persian Achaemenid Empire, Classical Athens, Warring States China, Hellenistic World, Mauryan India, Pax Romana) | ✅ validated |
| **Phase 2 (pre-schema, drifted)** | 13 (pre-agricultural → Iron Age Aegean) | ⚙ 8 migrated to schema v1 on 2026-07-31 (`scripts/migrate_phase2_eras.py`, content verbatim, not yet published to the site) · ⛔ 5 (eras 05–08, 12) lack per-paper scite metrics and need re-research |
| **Education pilots** | 3 (Classical Athens · paideia, Islamic Golden Age · madrasah, AI Inflection · cognitive threshold) | ✅ VALOR-sourced |
| **Unresearched** | 2 eras | 📋 backlog |
| **Phase 4 (expansion, registered 2026-07-29)** | 21 — 6 thematic, 8 crisis, 7 regional | 🔬 research in progress |

**Highlights:**
- **161 bibliography entries** harvested from Scite and VALOR.
- **9 validation missions** including the Mediterranean-diet / CVD validation run that caught the PREDIMED retraction.
- **143 citations** from the VALOR education corpus catalogued for cross-reference.

### The era model — 43 eras, overlapping by design

Until July 2026 an era was a slice of the linear chronological sweep, and an
event belonged to at most one. That cannot express the questions the corpus
should answer: the Haitian Revolution belongs to the Age of Revolutions *and*
the Age of Abolition *and* the modern sweep at the same time.

The registry (`scripts/eras/registry-expansion-2026-07.json`, merged by
`scripts/eras/build-era-index.mjs`) now carries four kinds of era in reserved id
bands, so the chronological space stays clean:

| Kind | Ids | Count | What it is |
|---|---|---|---|
| `chronological` | 1–50 | 22 | the original linear sweep |
| `thematic` | 100–119 | 6 | Big-History lenses that cross geography — Scientific Revolution, Age of Revolutions, Decolonisation |
| `crisis` | 120–139 | 8 | rupture, suffering, environmental shock — the Transatlantic Slave Trade, the Black Death, the World Wars |
| `regional` | 140–159 | 7 | spheres outside the Western default — West African Golden Age, Tang & Song, Classic Maya |

Each entry also carries `tone` (`golden` / `sombre` / `neutral`), which drives
palette **from data** rather than from a hardcoded list of era ids, and
`careLevel`. Seven eras are `careLevel: high`: they cover mass atrocity,
enslavement or genocide. That is **not** a publish gate — it is a research-depth
and provenance requirement. Contested figures are shown as ranges with named
provenance, victim counts never rest on a single source, and contested naming
conventions are attributed to whoever uses them.

`scripts/eras/validate-era-index.mjs` enforces the id bands, unique ids and
`start < end`. It deliberately does **not** reject overlapping date ranges —
overlap is the point.

### Research provenance — angles and evidence are separated

No single model both proposes a claim and supplies its own support.

1. **Angles** (`scripts/research/grok_angle_mission.py`) — Grok 4.5 generates
   falsifiable research claims per era plus a source-bias audit naming what the
   standard account distorts and where an English-web-trained model reliably
   fails. It is explicitly barred from producing citations.
2. **Evidence** — a separate Scite MCP pass retrieves the actual literature and
   returns a verdict per claim.

The separation earns its keep: on the first run the evidence pass **overruled
the angle pass three times** — African demographic decline 1700–1850 downgraded
from *supported* to *contested* (the offsetting term has never been estimated,
so no net figure exists), Black Death mortality corrected from a 40–60% band to
the literature's 30–60%, and Classic Maya equinoctial alignments downgraded to
*contested* ("deeply rooted but unfounded"). Raw dossiers live under
`evidence-layer/` (gitignored — see the note in `.gitignore`); the aggregated
derivatives ship in `frontend/public/data/eras/`.
- Scite MCP whitepaper + case study available under `/methodology/scite-mcp` on the live site.

See `evidence-layer/README.md` for the full layer 2 inventory.

---

## Frontend — Chronograph v0.2 (Notebook)

The original prototype frontend ("Eternal Codex" — dark-gold grimoire aesthetic) was **removed and rebuilt** on 2026-04-18 using the Claude Design handoff bundle.

Three coordinated surfaces, one navigation:

- **📖 Notebook** (`/`) — the default reading experience. Cream parchment with ruled lines, oxblood editorial stamps, Newsreader serif display + Inter Tight chrome + IBM Plex Mono. Virtualised 5,226-row timeline with a bookmark lane for era/decade rules. Every year is a folio entry.
- **🔬 Stratum** (`/stratum`) — dataset-as-instrument. Near-black dashboard, click-anywhere-to-jump year strip, 3-panel stats (event count by category, certainty distribution, source-mix bar), VB-style event grid with category rail, contempo/later source indicators, and full per-year dissent block.
- **🌍 Atlas** (`/atlas`) — orthographic globe with 17,515 plotted events. Imperative RAF-driven canvas draw reads rotation from a ref (no React re-render per frame over 17k items); d3-geo convention for drag so right-drag reveals east. Time-brush histogram across all 5,226 years, category filter, Off-Earth / orbital toggle (Apollo coords don't plot in the Pacific), LOD that switches heat → cluster → pin by zoom.

**Shell:**
- Primary nav (brand · Methodology · GitHub) always visible.
- Secondary nav (Notebook · Stratum · Atlas) only on the three interactive routes.
- Year folio (`/year/[id]`), Era dossier (`/era/[id]`), and Methodology pages render without the view switcher — pure reading.

**Era navigation (2026-07-29):**
- **Era scrubber** — one strip above the timeline carrying an event-density
  histogram across all 5,225 years (sqrt-normalised, because under linear
  scaling the modern buckets flatten everything before 1500 into a line), all 43
  eras packed into lanes so their deliberate overlap is legible, and
  drag-to-select a year span.
- **Era selector** — a menu replacing what had become a 43-item horizontal
  scroll strip. Grouped by kind, two columns, type-to-filter, and each row shows
  its span plus whether a dossier is filed.
- Eras registered before their research lands render a **registry stub** —
  label, span, kind, focus and the editorial care note — rather than the
  "Era not found" state a missing dossier used to produce.
- Proper Open Graph card rendering a cream folio preview (not the Vercel ▲).

**Tech:** Next.js 16.2, React 19.2, Tailwind v4, TanStack Virtual + Query, motion/react, d3-geo + topojson-client. All visual tokens from a single 3-variant system (`--fg / --stamp / --rule / --accent`) with WCAG AA contrast verified by `scripts/qa-contrast.mjs`.

### Frontend — hardening pass (2026-07)

A dedicated pass took the interface from "database inspector" to editorial product, all guarded by tests:

- **Classical Music & Opera timeline** (`/music`) — 233 works across 29 eras, Layer-1 draft + Layer-2 scholarship (161 peer-reviewed sources verified against Crossref/DataCite), also overlaid onto the main timeline as a filterable "musical" category.
- **Follow-the-thread** — music entries link to the earlier/later work in the chronology, landing on the exact entry (scroll + focus), turning the overlay into a guided narrative.
- **Proportional era ribbon** — the home era filter is a single band whose segment widths follow each era's real time-span across the 5,226 years; a map of deep time that doubles as the filter.
- **Reading-first folio** — narrative always visible, citations behind an explicit control; global "expand all sources"; a vertical era minimap.
- **Durable quality** — a committed **Playwright E2E suite + GitHub Actions CI** ([`frontend/e2e/`](frontend/e2e)) asserting, on every route: zero console errors, no horizontal overflow (320→1440), the signature features work, and **zero serious/critical axe-core a11y violations**. 30 tests.
- **Accessibility** — skip link, keyboard-navigable controls (roving-tabindex era ribbon, arrow-key nav), labelled globe controls + canvas, meaningful link/button names, WCAG-AA contrast across all three themes.
- **Discoverability** — dynamic `sitemap.xml` (5,255 URLs: every year + era), `robots.txt`, and a working Open Graph card (1200×630 cream folio).
- **Sovereign hosting** — served from an owned Hetzner edge (Caddy + Docker, auto-TLS) at **[timeline.sumarhus.com](https://timeline.sumarhus.com)**; the old Vercel host 308-redirects. Ideal-state criteria tracked in [`docs/ideal-state-criteria.md`](docs/ideal-state-criteria.md).

---

## Translation layer — EN → IS — open source 🇮🇸 (2026-04-18)

> **Looking for Icelandic-speaking contributors.** See [**TRANSLATION.md**](TRANSLATION.md) for the full methodology, fixed-terminology glossary, and how to review or extend a locale. Live coverage: [`outputs/translations/is/STATUS.json`](outputs/translations/is/STATUS.json).

The corpus is being localized into Icelandic via a CI-integrated pipeline at [`scripts/translate/`](scripts/translate/). The architecture is generic and supports additional locales; PRs adding new languages welcome.

**Model:** `gemini-3-flash-preview` (pinned — `-latest` tags are forbidden in production runs so dialect/format doesn't shift mid-backfill).

**Strategy:** The model is prompted *in Icelandic* — the full system prompt is written in Icelandic to lock the model into the Icelandic latent space. Prompt is verbatim at [`scripts/translate/prompts/system.is.md`](scripts/translate/prompts/system.is.md) and content-hash-pinned in the manifest so any edit invalidates the entire locale cache.

**Six-guard correctness chain** (every translated file must pass all six or it's not written):

1. Locked verbatim Icelandic system prompt (rule #1: translate values only, keep keys in English).
2. Glossary preamble in the user message listing every JSON key + every ICCRA enum value that must be preserved.
3. API-level `responseMimeType: "application/json"` forcing strict JSON output.
4. **Structural diff** rejecting any file where keys, enums, IDs, numerics, or array lengths differ from source. `cross_references` and `coordinates_approx` allow English parenthetical annotations to translate but require the ID/numeric prefix to match.
5. **Deterministic key-rename auto-repair** for the mechanical `extra_key + missing_key with same ICCRA-enum value` class of model errors (e.g. model produces `"certain": "confirmed"` instead of `"certainty": "confirmed"` — schema is authoritative, rename is logged, content is untouched).
6. **Ajv schema validator** rejecting any file that breaks ICCRA.

Atomic `.tmp` → `rename` ensures no partial writes ever land on disk. Idempotent via SHA256(source) + SHA256(prompt) per file per locale in `.translation-manifest.json`.

**Fixed Icelandic terms** (from [`scripts/translate/glossary.json`](scripts/translate/glossary.json)): BCE → f.Kr., CE → e.Kr., *Antiquities of the Jews* → *Fornsögur Gyðinga*, *Proleptic Gregorian* → *fyrirframreiknað gregorískt tímatal*. Canonical Icelandic forms for historical names (Ágústus, Heródes mikli, Parþaveldið, Silkivegurinn, Jósefus) handled by the locked prompt.

**Automation:** [`.github/workflows/translate-is.yml`](.github/workflows/translate-is.yml) — on push to `main` touching `outputs/json/**` or `scripts/translate/**`, runs the IS pipeline (manifest-skipped for cached files), re-aggregates frontend chunks, opens a PR via peter-evans/create-pull-request. `workflow_dispatch` supports a `reset_manifest` flag for forced full re-translation. Concurrency group prevents overlapping runs.

**Frontend consumption:** [`frontend/scripts/aggregate-data.mjs`](frontend/scripts/aggregate-data.mjs) emits per-locale chunk trees at `frontend/public/data/<locale>/{chunks,manifest.json}`. Missing-locale years fall back to English with a `_locale_fallback: "en"` marker so the UI never sees a hole in the timeline. [`frontend/src/i18n/`](frontend/src/i18n/) provides a `hasLocale()` typeguard, dictionary loader, and native-speaker-authored EN / IS dictionaries for chrome, category labels, certainty labels, and era names. The `app/[lang]/` route restructure is scheduled as a follow-up session.

Run locally:

```bash
cd scripts/translate
npm install
echo "GOOGLE_AI_API_KEY=..." >> ../../.env
npm run dry-run:is            # 3-file smoke
npm run run:is                # full 5,226-year backfill (resumable)
```

---

## What each year contains

Every year follows the **ICCRA schema** (see [`RESEARCH_PROMPT.md`](RESEARCH_PROMPT.md)):

```json
{
  "year": 1066,
  "year_label": "1066 CE",
  "era_context": "High medieval period...",
  "documentation_level": "rich",
  "geographic_coverage_gaps": ["Sub-Saharan Africa", "Southeast Asia"],
  "events": [
    {
      "id": "1066-001",
      "title": "Battle of Hastings",
      "region": "England",
      "category": "military",
      "description": "...",
      "key_figures": ["William, Duke of Normandy"],
      "sources": [{"name": "Bayeux Tapestry", "type": "primary_text", "contemporary": true}],
      "certainty": "confirmed",
      "certainty_note": "Extensively documented..."
    }
  ],
  "disconfirming_evidence": "...",
  "historiographic_note": "...",
  "graph_edges": [{"from": "1066-001", "to": "1086-001", "relation": "led_to", "note": "..."}],
  "_meta": {"model": "claude-sonnet-4-6", "processed_at": "2026-04-11T..."}
}
```

**Design principles:** no fabrication · anti-sycophancy (disconfirming evidence mandatory) · no anachronism · global coverage (gaps declared, not hidden) · named source typing (primary text, archaeological, epigraphic, numismatic, chronicle, oral tradition).

---

## The optimisation journey (Phase 1)

Started as a subscription-based CLI daemon; evolved through five phases to complete the corpus 29× faster at 98.6% lower cost.

| Metric | Phase 1 (CLI) | Phase 5 (API) | Improvement |
|---|---|---|---|
| Cost per year | $0.22 | $0.003 | 99% cheaper |
| Years per cycle | 5 | 25 | 5× throughput |
| Cycle interval | 20 min | 60 sec | 20× faster |
| Schedule | Off-hours only | 24/7 | Unrestricted |
| Total time | ~70 days (est.) | 57.7 hours (actual) | 29× faster |
| Total cost | ~$1,150 (est.) | ~$15.68 (actual) | 98.6% cheaper |

Full breakdown of each phase, including the failed Haiku experiment and the Kimi-analysed plan-mode migration, lives on [/methodology](https://timeline.sumarhus.com/methodology).

---

## Run it yourself

Self-contained prompt, no dependencies — drop into any capable AI:

```
You are a historical research agent. Produce structured JSON for a single year.

YEAR TO RESEARCH: [INSERT YEAR, e.g., 1453 or -776]

RULES:
1. Negative years = BCE. Positive = CE.
2. Research significant events across ALL regions.
3. Modern years: 15-25 events. Ancient: 0-5. Zero is acceptable.
4. Every event names its source. "General knowledge" is not acceptable.
5. Every event has a certainty level: confirmed/probable/approximate/traditional/legendary.
6. Include "disconfirming_evidence" — what's disputed about this year?
7. Include "geographic_coverage_gaps" — what regions are you missing?
8. Do NOT fabricate. Empty events with honest context > hallucinated entries.
9. Respond with VALID JSON ONLY.

SCHEMA: {"year": int, "year_label": str, "era_context": str,
"documentation_level": "rich|moderate|sparse|minimal|negligible",
"geographic_coverage_gaps": [str], "events": [{id, title, region,
category, description, key_figures, sources, certainty, certainty_note}],
"disconfirming_evidence": str, "historiographic_note": str,
"graph_edges": [{from, to, relation, note}]}
```

---

## Quality assurance

```bash
# Full ICCRA schema validation
python3 scripts/validate_corpus.py

# Auto-fix compound categories ("political | military" -> "political")
python3 scripts/fix_categories.py

# Backfill _meta on files missing model/cost tracking
python3 scripts/backfill_meta.py
```

Final validation pass: **100% valid** — 5,226 files, 17,991 events, 0 errors.

---

## Architecture

```
chronograph/
├── LICENSE                        MIT
├── README.md                      this file
├── RESEARCH_PROMPT.md             ICCRA prompt template (locked)
├── LEDGER.md                      append-only progress log
├── CONTRIBUTING.md                how to do adversarial review
│
├── scripts/                       Python 3.11 async daemon (Phase 1) + TS translate
│   ├── api_client.py              direct Anthropic API, tiered models
│   ├── orchestrator_optimized.py  main daemon loop
│   ├── batch_processor.py         5 years per API call
│   ├── validate_corpus.py         ICCRA schema validator
│   ├── fix_categories.py          auto-fix compound categories
│   ├── health_check.sh            quick status
│   └── translate/                 EN → IS translation pipeline (2026-04-18)
│       ├── gemini.ts              @google/genai client, pinned flash-3-preview
│       ├── schema.ts              Ajv ICCRA validator (mirrors Python)
│       ├── structural-diff.ts     post-translation keys/enums/IDs guard
│       ├── key-repair.ts          deterministic schema-key auto-repair
│       ├── translate.ts           per-file orchestration
│       ├── manifest.ts            SHA256 idempotency
│       ├── run.ts                 CLI entrypoint
│       ├── prompts/system.is.md   locked verbatim Icelandic prompt
│       └── glossary.json          DO_NOT_TRANSLATE + fixed IS terms
│
├── docker/                        reboot-persistent daemon container
│
├── outputs/
│   ├── json/                      5,226 ICCRA JSON files (Layer 1)
│   ├── haiku_experiment/          archived quality comparison
│   └── gemini_experiment/         archived quality comparison
│
├── evidence-layer/                Layer 2 — Scite/VALOR deep-dives
│   ├── methodology/               scite-skill-system + validation missions
│   ├── eras/                      phase2-eras-01-13, phase3-eras-14-20
│   └── education-layer/           VALOR-sourced education pilots
│
├── frontend/                      Chronograph v0.2 (Notebook)
│   ├── src/app/                   Next.js 16 App Router
│   │   ├── page.tsx               / (Notebook timeline)
│   │   ├── atlas/page.tsx         /atlas (orthographic globe)
│   │   ├── stratum/page.tsx       /stratum (instrument dashboard)
│   │   ├── year/[id]/             per-year folio
│   │   ├── era/[id]/              per-era scholarly brief
│   │   ├── methodology/           editorial methodology page
│   │   └── opengraph-image.tsx    OG card (cream folio, 1200×630)
│   ├── src/components/
│   │   ├── shell/                 two-layer nav (primary + secondary)
│   │   ├── notebook/              folio timeline + year layout
│   │   ├── stratum/               instrument dashboard
│   │   └── atlas/                 globe + imperative draw loop
│   ├── scripts/
│   │   ├── aggregate-data.mjs     Layer 1: chunk JSON (+ per-locale trees)
│   │   ├── aggregate-evidence.mjs Layer 2: flatten evidence to per-era JSON
│   │   ├── qa-tour.mjs            Playwright screenshot sweep
│   │   ├── qa-font-audit.mjs      DOM sweep for <14px text
│   │   └── qa-contrast.mjs        WCAG AA computed-contrast checker
│   ├── src/i18n/                  locale loader + en/is dictionaries
│   └── public/data/               aggregated chunks + era bundles + locale trees
│
└── state/
    ├── progress.json              daemon progress (completed/failed/in_progress)
    └── cache/                     SHA256-keyed response cache
```

---

## License

MIT License for all code (see [`LICENSE`](LICENSE)).
Corpus data (JSON under `outputs/json/`, aggregated chunks, evidence layer) released under CC BY 4.0 — attribution required.

---

## Contributing

Layer 1 is complete. Layer 2 and the frontend are living work.

1. **Adversarial review** — prove the AI wrong. Find fabrications, bad sources, anachronisms
2. **Regional deep dives** — African, East Asian, Indigenous American, Pacific
3. **Graph edges** — cause/effect chains, parallel developments, trade routes
4. **Evidence layer** — re-research the 13 Phase-2 eras under schema v1.0.0
5. **Frontend** — file issues for broken UX or missing affordances

See [CONTRIBUTING.md](CONTRIBUTING.md).

---

*Built by [Magnús Smári Smárason](https://smarason.is) — one daemon, 5,226 years, zero fabrication. Frontend design by Claude Design (claude.ai/design), implementation by Claude Code.*

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