diff --git a/src/lib/workersRoster.js b/src/lib/workersRoster.js
new file mode 100644
index 0000000..bcd7bdc
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+++ b/src/lib/workersRoster.js
@@ -0,0 +1,106 @@
+// Spiegel des Rollen-Registers (Übersicht §3) für die Hustler-Seite.
+// Die Tabelle spiegelt den Dienst (src/roles.js); beide Repos testen gegen dieselbe Fixture workers-roster.json.
+// Reine Daten und Funktionen: kein React, kein Appwrite, kein window/document.
+
+// Modell-Kurznamen der Rollen -> Modell-IDs (Übersicht §2.8)
+export const MODEL_IDS = Object.freeze({
+  opus: 'claude-opus-5-5',
+  sonnet: 'claude-sonnet-5-5',
+  haiku: 'claude-haiku-5-5',
+})
+
+// Etagen von oben nach unten; freigabe (Pult) und tresor haben keinen Worker
+export const FLOORS = Object.freeze(['bruecke', 'anfragen', 'ohne_website', 'bewertung', 'gespraeche', 'werkstatt', 'pruefung', 'freigabe', 'tresor', 'keller'])
+
+// Die vier Branchen-Scouts (Ali, Hanna, Sven, Lea) haben dieselben Fähigkeiten
+const SCOUT_CAPS = ['web_search', 'web_fetch', 'places', 'osm']
+
+// Tabellenreihenfolge der Übersicht §3; role = Spalte „Einzige Rolle“ wörtlich
+const TABELLE = [
+  { workerId: 'otto', name: 'Otto', floor: 'bruecke', room: 'bruecke', model: 'opus', role: 'plant die Nacht, verteilt Aufträge, Budget, Morgenbericht', caps: ['plan', 'report'] },
+  { workerId: 'rita', name: 'Rita', floor: 'anfragen', room: 'netz', model: 'haiku', role: 'sucht frische „Suche Webdesigner“-Posts über Websuche', caps: ['web_search', 'web_fetch'] },
+  { workerId: 'kim', name: 'Kim', floor: 'anfragen', room: 'kleinanzeigen', model: 'haiku', role: 'liest Kleinanzeigen-Suchauftrags-Mails im Alarm-Postfach', caps: ['alert_inbox'] },
+  { workerId: 'pia', name: 'Pia', floor: 'anfragen', room: 'portale', model: 'haiku', role: 'liest Projekt-Alerts/RSS der Portale', caps: ['alert_inbox', 'rss'] },
+  { workerId: 'finn', name: 'Finn', floor: 'anfragen', room: 'foren', model: 'haiku', role: 'sucht in Foren/Frage-Seiten (nur erlaubte)', caps: ['web_search', 'web_fetch'] },
+  { workerId: 'ali', name: 'Ali', floor: 'ohne_website', room: 'aerzte', model: 'haiku', role: 'Branchen-Scout Ärzte & Praxen', caps: SCOUT_CAPS },
+  { workerId: 'hanna', name: 'Hanna', floor: 'ohne_website', room: 'handwerk', model: 'haiku', role: 'Branchen-Scout Handwerk', caps: SCOUT_CAPS },
+  { workerId: 'sven', name: 'Sven', floor: 'ohne_website', room: 'selbst', model: 'haiku', role: 'Branchen-Scout Selbstständige', caps: SCOUT_CAPS },
+  { workerId: 'lea', name: 'Lea', floor: 'ohne_website', room: 'laden', model: 'haiku', role: 'Branchen-Scout Läden & Gastro', caps: SCOUT_CAPS },
+  { workerId: 'bea', name: 'Bea', floor: 'bewertung', room: 'waage', model: 'sonnet', role: 'bewertet, verteilt Top 3 / Rest', caps: ['score'] },
+  { workerId: 'max', name: 'Max', floor: 'gespraeche', room: 'mail', model: 'sonnet', role: 'schreibt Mails und ist einziger Absender', caps: ['draft', 'send_mail'] },
+  { workerId: 'clara', name: 'Clara', floor: 'gespraeche', room: 'forum', model: 'sonnet', role: 'schreibt Antworten auf Anfragen', caps: ['draft', 'pult'] },
+  { workerId: 'nora', name: 'Nora', floor: 'gespraeche', room: 'posteingang', model: 'haiku', role: 'liest + sortiert Eingänge', caps: ['read_inbox', 'classify'] },
+  { workerId: 'theo', name: 'Theo', floor: 'gespraeche', room: 'abschluss', model: 'sonnet', role: 'Nachrichten rund um den Kauf (Entwürfe)', caps: ['draft', 'pult', 'offer'] },
+  { workerId: 'bob', name: 'Bob', floor: 'werkstatt', room: 'tisch1', model: 'opus', role: 'baut Vorschauen (nur nach Ja)', caps: ['build'] },
+  { workerId: 'bianca', name: 'Bianca', floor: 'werkstatt', room: 'tisch2', model: 'opus', role: 'baut Vorschauen', caps: ['build'] },
+  { workerId: 'ben', name: 'Ben', floor: 'werkstatt', room: 'tisch3', model: 'opus', role: 'baut Vorschauen', caps: ['build'] },
+  { workerId: 'paul', name: 'Paul', floor: 'pruefung', room: 'pruefung', model: 'sonnet', role: 'prüft Vorschauen (Screenshots)', caps: ['review', 'screenshot'] },
+  { workerId: 'arne', name: 'Arne', floor: 'keller', room: 'archiv', model: 'haiku', role: 'Nie-doppelt-Register + Bot-Lead-Liste', caps: ['register', 'archive'] },
+]
+
+// Eingefroren, jede Rolle mit eigener caps-Kopie
+export const ROLES = Object.freeze(TABELLE.map((r) => Object.freeze({ ...r, caps: Object.freeze([...r.caps]) })))
+
+// Räume der Etagen anfragen und ohne_website in ROLES-Reihenfolge (Spiegel von src/roles.js des Dienstes).
+// Nur diese Such-Räume können „nicht angeschlossen“ (grau) sein, alle anderen Worker meldet der Dienst als
+// angeschlossen (Übersicht §11.1 P1-E9). WOMS berechnet `connected` nicht selbst; die Konstante dient Anzeige und Prüfstand.
+export const SEARCH_ROOMS = Object.freeze(ROLES.filter((r) => r.floor === 'anfragen' || r.floor === 'ohne_website').map((r) => r.room))
+
+export const FLOOR_TITLES = Object.freeze({
+  bruecke: 'Kommandobrücke',
+  anfragen: 'Anfragen',
+  ohne_website: 'Ohne Website',
+  bewertung: 'Bewertung',
+  gespraeche: 'Gespräche',
+  werkstatt: 'Werkstatt',
+  pruefung: 'Prüfung',
+  freigabe: 'Freigabe',
+  tresor: 'Tresor',
+  keller: 'Keller',
+})
+
+// 19 Worker-Räume plus Pult (Etage freigabe) und Tresor
+export const ROOM_TITLES = Object.freeze({
+  netz: 'Netz-Radar',
+  kleinanzeigen: 'Kleinanzeigen',
+  portale: 'Portale',
+  foren: 'Foren & Fragen',
+  aerzte: 'Ärzte & Praxen',
+  handwerk: 'Handwerk',
+  selbst: 'Selbstständige',
+  laden: 'Läden & Gastro',
+  waage: 'Waage',
+  mail: 'Mail-Stube',
+  forum: 'Forum-Stube',
+  posteingang: 'Posteingang',
+  abschluss: 'Abschluss',
+  tisch1: 'Tisch 1',
+  tisch2: 'Tisch 2',
+  tisch3: 'Tisch 3',
+  pruefung: 'Prüftisch',
+  archiv: 'Archiv & Register',
+  bruecke: 'Brücke',
+  pult: 'Dein Pult',
+  tresor: 'Tresor',
+})
+
+// Nachschlagen über Map statt Objekt: 'constructor' oder '__proto__' sind keine Treffer
+const NACH_ID = new Map(ROLES.map((r) => [r.workerId, r]))
+
+// Rolle zur Kennung; unbekannte Kennung -> null
+export function roleOf(workerId) {
+  return NACH_ID.get(workerId) ?? null
+}
+
+// Hut der Figur nach Modell: Kurzname oder voller Modellname, sonst 'haiku'
+export function hatForModel(model) {
+  const m = typeof model === 'string' ? model.match(/opus|sonnet|haiku/) : null
+  return m ? m[0] : 'haiku'
+}
+
+// Otto trägt die Kommandomütze, alle anderen den Hut ihres Modells; unbekannte Kennung -> 'haiku'
+export function hatForWorker(workerId) {
+  if (workerId === 'otto') return 'overseer'
+  const r = roleOf(workerId)
+  return r ? hatForModel(r.model) : 'haiku'
+}
diff --git a/tests/fixtures/workers-roster.json b/tests/fixtures/workers-roster.json
new file mode 100644
index 0000000..835de10
--- /dev/null
+++ b/tests/fixtures/workers-roster.json
@@ -0,0 +1,24 @@
+{
+  "floors": ["bruecke","anfragen","ohne_website","bewertung","gespraeche","werkstatt","pruefung","freigabe","tresor","keller"],
+  "roles": [
+    {"workerId":"otto","name":"Otto","floor":"bruecke","room":"bruecke","model":"opus","role":"plant die Nacht, verteilt Aufträge, Budget, Morgenbericht","caps":["plan","report"]},
+    {"workerId":"rita","name":"Rita","floor":"anfragen","room":"netz","model":"haiku","role":"sucht frische „Suche Webdesigner“-Posts über Websuche","caps":["web_search","web_fetch"]},
+    {"workerId":"kim","name":"Kim","floor":"anfragen","room":"kleinanzeigen","model":"haiku","role":"liest Kleinanzeigen-Suchauftrags-Mails im Alarm-Postfach","caps":["alert_inbox"]},
+    {"workerId":"pia","name":"Pia","floor":"anfragen","room":"portale","model":"haiku","role":"liest Projekt-Alerts/RSS der Portale","caps":["alert_inbox","rss"]},
+    {"workerId":"finn","name":"Finn","floor":"anfragen","room":"foren","model":"haiku","role":"sucht in Foren/Frage-Seiten (nur erlaubte)","caps":["web_search","web_fetch"]},
+    {"workerId":"ali","name":"Ali","floor":"ohne_website","room":"aerzte","model":"haiku","role":"Branchen-Scout Ärzte & Praxen","caps":["web_search","web_fetch","places","osm"]},
+    {"workerId":"hanna","name":"Hanna","floor":"ohne_website","room":"handwerk","model":"haiku","role":"Branchen-Scout Handwerk","caps":["web_search","web_fetch","places","osm"]},
+    {"workerId":"sven","name":"Sven","floor":"ohne_website","room":"selbst","model":"haiku","role":"Branchen-Scout Selbstständige","caps":["web_search","web_fetch","places","osm"]},
+    {"workerId":"lea","name":"Lea","floor":"ohne_website","room":"laden","model":"haiku","role":"Branchen-Scout Läden & Gastro","caps":["web_search","web_fetch","places","osm"]},
+    {"workerId":"bea","name":"Bea","floor":"bewertung","room":"waage","model":"sonnet","role":"bewertet, verteilt Top 3 / Rest","caps":["score"]},
+    {"workerId":"max","name":"Max","floor":"gespraeche","room":"mail","model":"sonnet","role":"schreibt Mails und ist einziger Absender","caps":["draft","send_mail"]},
+    {"workerId":"clara","name":"Clara","floor":"gespraeche","room":"forum","model":"sonnet","role":"schreibt Antworten auf Anfragen","caps":["draft","pult"]},
+    {"workerId":"nora","name":"Nora","floor":"gespraeche","room":"posteingang","model":"haiku","role":"liest + sortiert Eingänge","caps":["read_inbox","classify"]},
+    {"workerId":"theo","name":"Theo","floor":"gespraeche","room":"abschluss","model":"sonnet","role":"Nachrichten rund um den Kauf (Entwürfe)","caps":["draft","pult","offer"]},
+    {"workerId":"bob","name":"Bob","floor":"werkstatt","room":"tisch1","model":"opus","role":"baut Vorschauen (nur nach Ja)","caps":["build"]},
+    {"workerId":"bianca","name":"Bianca","floor":"werkstatt","room":"tisch2","model":"opus","role":"baut Vorschauen","caps":["build"]},
+    {"workerId":"ben","name":"Ben","floor":"werkstatt","room":"tisch3","model":"opus","role":"baut Vorschauen","caps":["build"]},
+    {"workerId":"paul","name":"Paul","floor":"pruefung","room":"pruefung","model":"sonnet","role":"prüft Vorschauen (Screenshots)","caps":["review","screenshot"]},
+    {"workerId":"arne","name":"Arne","floor":"keller","room":"archiv","model":"haiku","role":"Nie-doppelt-Register + Bot-Lead-Liste","caps":["register","archive"]}
+  ]
+}
diff --git a/tests/unit/workersRoster.test.mjs b/tests/unit/workersRoster.test.mjs
new file mode 100644
index 0000000..a9ef7e5
--- /dev/null
+++ b/tests/unit/workersRoster.test.mjs
@@ -0,0 +1,35 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import { loadModule } from './load.mjs'
+const { ROLES, FLOORS, SEARCH_ROOMS, FLOOR_TITLES, ROOM_TITLES, MODEL_IDS, hatForModel, hatForWorker, roleOf } = await loadModule('src/lib/workersRoster.js')
+const fixture = JSON.parse(readFileSync(new URL('../fixtures/workers-roster.json', import.meta.url), 'utf8'))
+
+test('Spiegel ist gleich der gemeinsamen Fixture', () => {
+  assert.deepEqual([...FLOORS], fixture.floors)
+  assert.deepEqual(JSON.parse(JSON.stringify(ROLES)), fixture.roles)
+})
+test('19 Worker, workerId und Raum einmalig, Etagen und Titel vollständig', () => {
+  assert.equal(ROLES.length, 19)
+  assert.equal(new Set(ROLES.map((r) => r.workerId)).size, 19)
+  assert.equal(new Set(ROLES.map((r) => r.room)).size, 19)
+  for (const r of ROLES) assert.ok(FLOORS.includes(r.floor), r.workerId)
+  assert.equal(FLOORS.length, 10)
+  assert.deepEqual(Object.keys(FLOOR_TITLES).sort(), [...FLOORS].sort())
+  assert.deepEqual(Object.keys(ROOM_TITLES).sort(), [...ROLES.map((r) => r.room), 'pult', 'tresor'].sort())
+})
+test('Hut zeigt das Modell, Otto trägt die Kommandomütze', () => {
+  assert.deepEqual(['opus', 'claude-sonnet-5-5', 'claude-haiku-5-5', 'claude-xyz', undefined].map(hatForModel), ['opus', 'sonnet', 'haiku', 'haiku', 'haiku'])
+  assert.deepEqual(['otto', 'bob', 'bea', 'kim', 'zed'].map(hatForWorker), ['overseer', 'opus', 'sonnet', 'haiku', 'haiku'])
+  assert.equal(roleOf('paul').room, 'pruefung')
+  assert.equal(roleOf('zed'), null)
+  assert.equal(roleOf('constructor'), null)
+  assert.equal(hatForWorker('__proto__'), 'haiku')
+  assert.deepEqual(MODEL_IDS, { opus: 'claude-opus-5-5', sonnet: 'claude-sonnet-5-5', haiku: 'claude-haiku-5-5' })
+})
+test('SEARCH_ROOMS: festgenagelt wie im Dienst (P1-T05) und aus der Fixture ableitbar; nur diese Worker können grau sein (P1-E9)', () => {
+  assert.deepEqual([...SEARCH_ROOMS], ['netz', 'kleinanzeigen', 'portale', 'foren', 'aerzte', 'handwerk', 'selbst', 'laden'])
+  assert.deepEqual([...SEARCH_ROOMS], fixture.roles.filter((r) => ['anfragen', 'ohne_website'].includes(r.floor)).map((r) => r.room))
+  assert.deepEqual(ROLES.filter((r) => SEARCH_ROOMS.includes(r.room)).map((r) => r.workerId), ['rita', 'kim', 'pia', 'finn', 'ali', 'hanna', 'sven', 'lea'])
+  assert.equal(ROLES.filter((r) => !SEARCH_ROOMS.includes(r.room)).length, 11)
+})