Hide concealed Duke execution from Ghola guidance

docs/CURRENT_STATUS.md

@@ -17,6 +17,17 @@ open mode gates.
 
 ## Current checkpoint and work
 
+**Concealed Duke and Ghola guidance — 29 October. Prototyped / Partial.**
+Ecaz's Ghola choices now use the same projected Duke state as ordinary revival,
+so secretly executing another player's Duke captive no longer changes that
+choice list. A staged physical-custody regression fails without the fix; four
+related files pass 27 cases. The related cohort fixture now waits for Ecaz's
+actual Advanced Revival opportunity. A separate potential disclosure in the
+Ambassador acquisition availability remains open in admitted Harkonnen
+profiles; the plain profile stays guarded. Wider capture assurance and deployed
+verification remain open.
+[Scope](DUKE_VIDAL_RULES.md#concealed-duke-ghola-guidance--29-october-2026).
+
 **Caladan occupier's auction knowledge — 29 October. Prototyped / Partial.**
 An eligible occupier can answer the existing Truthtrance auction-inspection
 fact using its actual current ordinary or Advanced Black Market inspection,

docs/DUKE_VIDAL_RULES.md

@@ -1,5 +1,24 @@
 # Duke Prad Vidal lifecycle
 
+## Concealed Duke Ghola guidance — 29 October 2026
+
+**Prototyped / Partial.** Ecaz's private Ghola choice list now uses the Duke
+state projected to Ecaz, just as its ordinary revival guidance does. A secret
+execution of a Duke captured from another controller therefore does not change
+that list before Ecaz can know the death. A publicly dead Duke remains offered;
+actual Ghola actions continue to validate authoritative physical custody.
+
+The focused test stages real Duke capture/execution transitions and a conserved
+physical Ghola. It fails on the prior unprojected guidance and passes with the
+fix; four related files pass 27 cases. Two older cohort journeys initially
+failed on the prior code too; their fixture now waits for Ecaz's real ordered
+Advanced Revival opportunity. A separate potential disclosure remains: in
+admitted Advanced Harkonnen profiles, the Ambassador acquisition descriptor
+uses actual Duke custody and may distinguish a secretly captured Duke from a
+publicly equivalent free Duke. Plain Advanced Ecaz/Harkonnen acquisition stays
+guarded until a public-safe solution is implemented. Broader capture assurance
+and deployed verification remain open.
+
 ## Occupied Ecaz grant — 26 October 2026
 
 The occupied Homeworld now connects its living shared-Duke recipient choice,

docs/RULE_DECISIONS.md

@@ -1,5 +1,12 @@
 # Rule decision index
 
+## Concealed Duke and Ghola guidance — 29 October 2026
+
+Ecaz's Ghola guidance uses its projected Duke state, matching ordinary revival;
+authoritative play still validates physical custody. A distinct potential leak
+in Ambassador acquisition availability remains open.
+[Scope](DUKE_VIDAL_RULES.md#concealed-duke-ghola-guidance--29-october-2026).
+
 ## Caladan occupier's auction knowledge — 29 October 2026
 
 The existing Truthtrance auction fact recognizes a successfully inspected

game/engine.ts

@@ -48669,8 +48669,8 @@ export function viewGame(state: Game, id: string, now?: number) {
     }
   }
   // A concealed capture may change the real death count without revealing it
-  // to the native owner. Derive guidance from the same projected discs that
-  // the seat can inspect; action validation still uses authoritative custody.
+  // to the native owner. Derive ordinary and Ghola revival guidance from the
+  // same projected discs the seat can inspect; actions still use actual custody.
   const visibleRevivalGame = me.faction === 'ecaz' && g.dukeVidal
     ? { ...g, dukeVidal: { ...g.dukeVidal,
         leader: projectLeader(g, g.dukeVidal.leader, id) } }
@@ -49704,7 +49704,7 @@ export function viewGame(state: Game, id: string, now?: number) {
       ),
       freeBlocked: g.revivalRules?.freeBlocked?.includes(id) ?? false,
     },
-    ghola: gholaOptions(g, me),
+    ghola: gholaOptions(visibleRevivalGame, me),
     ...(me.faction === 'beneGesserit' && g.advisorMatchingDenied?.length
       ? {advisorMatchingDenied:g.advisorMatchingDenied} : {}),
     aid: {

tests/ecaz-duke-ghola-privacy.test.ts

@@ -0,0 +1,42 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { createGame, newPlayer, viewGame } from '../game/engine';
+import { acquireDuke, captureDuke, createDukeVidal, DUKE_VIDAL_ID, executeCapturedDuke } from '../game/duke-vidal';
+import { newRevivalRules } from '../game/revival';
+import { createNexusCards } from '../game/nexus-cards';
+import { baseDeck } from '../game/cards';
+import { ecazDukeRevivalBlock } from '../game/ecaz-duke-revival';
+
+/** Staged public-equivalent custody in a supported Advanced Nexus roster. */
+function fixture() {
+  const game = createGame('DUKEGHOLAPRIVACY', newPlayer('ec', 'Ecaz', 'ecaz'), true, ['ecaz']);
+  game.players.push(newPlayer('h', 'Harkonnen', 'harkonnen'), newPlayer('g', 'Guild', 'guild'));
+  Object.assign(game, { status:'playing', phase:0, turn:1, order:['ec','h','g'],
+    revivalRules:newRevivalRules(), nexusCards:{cards:createNexusCards(game.players, () => 0.5),phase:null} });
+  game.deck = baseDeck();
+  const ghola = game.deck.findIndex(card => card.effect === 'ghola');
+  assert.ok(ghola >= 0);
+  game.players[0].hand.push(game.deck.splice(ghola, 1)[0]);
+  const prior = acquireDuke(createDukeVidal(), 'g', 1, 'ecaz');
+  game.dukeVidal = captureDuke(prior, 'h', 'g', 1, 'arrakeen');
+  return game;
+}
+
+void test('Ecaz Ghola options do not disclose a secretly executed foreign Duke captive', () => {
+  const alive = fixture(), executed = structuredClone(alive);
+  executed.dukeVidal = executeCapturedDuke(executed.dukeVidal!, 'h', executed.turn);
+  assert.ok(ecazDukeRevivalBlock(alive, 'ec'), 'Actual living captive is unavailable');
+  assert.equal(ecazDukeRevivalBlock(executed, 'ec'), null, 'Secret execution changes authoritative eligibility');
+  const before = viewGame(alive, 'ec'), after = viewGame(executed, 'ec');
+  assert.deepEqual(before.dukeVidal, after.dukeVidal, 'Duke custody remains publicly equivalent');
+  assert.deepEqual(before.ghola, after.ghola, 'Ghola options must not reveal the hidden execution');
+  assert.equal(after.ghola.leaders.some(leader => leader.id === DUKE_VIDAL_ID), false);
+});
+
+void test('Ecaz is offered its publicly dead Duke for Ghola', () => {
+  const game = fixture();
+  game.dukeVidal = createDukeVidal();
+  game.dukeVidal.leader.dead = true;
+  game.dukeVidal.leader.deaths = 1;
+  assert.equal(viewGame(game, 'ec').ghola.leaders.some(leader => leader.id === DUKE_VIDAL_ID), true);
+});

tests/fixture-ecaz-revival-cohort.ts

@@ -9,6 +9,9 @@ import {
 } from './fixture-nexus-duke-capture';
 
 type Transition = { before: Game; after: Game; leader: string };
+/** Do not stop at another faction's ordered Advanced Revival opportunity. */
+const ownerRevival = (game: Game, owner: string) => game.phase === 4 && nexusDukeClean(game) &&
+  (!game.revivalOrder || game.revivalOrder.remaining[0] === owner);
 export type NativeEcazCohortFixture = {
   game: Game; owner: string; captor: string; plan: NexusDukePlan; actions: NexusDukeStep[];
   deaths: Transition[]; funding: { before: Game; after: Game; amount: number };
@@ -73,7 +76,7 @@ export function createNativeEcazCohortFixture(): NativeEcazCohortFixture {
   game = stepNexusDuke(game, plan, { actor: captor,
     action: { type: 'bribe', target: owner, amount } }, actions);
   const funding = { before: fundingBefore, after: structuredClone(game), amount };
-  game = advanceNexusDuke(game, g => g.phase === 4 && nexusDukeClean(g), plan, actions);
+  game = advanceNexusDuke(game, g => ownerRevival(g, owner), plan, actions);
   const firstBefore = structuredClone(game);
   const firstLeader = native[0];
   assert.ok(viewGame(game, owner).revival.leaders.some(l => l.id === firstLeader));
@@ -81,7 +84,7 @@ export function createNativeEcazCohortFixture(): NativeEcazCohortFixture {
     action: { type: 'reviveLeader', leader: firstLeader } }, actions);
   const first = { before: firstBefore, after: structuredClone(game), leader: firstLeader };
   const repeat = kill(firstLeader);
-  game = advanceNexusDuke(game, g => g.phase === 4 && nexusDukeClean(g), plan, actions);
+  game = advanceNexusDuke(game, g => ownerRevival(g, owner), plan, actions);
   plan.ship = {};
   assert.equal(nexusDukePlayer(game, owner).leaders.find(l => l.id === firstLeader)!.deaths, 2);
   assertNexusDukeCustody(game);
@@ -119,7 +122,7 @@ export function createNativeEcazSecondCohortFixture(): NativeEcazSecondCohortFix
   const paid: Transition[] = [], repeats: Transition[] = [];
   let ghola!: Transition;
   for (let i = 0; i < 3; i++) {
-    game = advanceNexusDuke(game, g => g.phase === 4 && nexusDukeClean(g), plan, actions);
+    game = advanceNexusDuke(game, g => ownerRevival(g, owner), plan, actions);
     const before = structuredClone(game);
     game = stepNexusDuke(game, plan, { actor: owner,
       action: { type: 'reviveLeader', leader: native[i] } }, actions);
@@ -138,7 +141,7 @@ export function createNativeEcazSecondCohortFixture(): NativeEcazSecondCohortFix
   }
   const last = poisonDeath(game, death, native[3]);
   repeats.push(last);
-  game = advanceNexusDuke(last.after, g => g.phase === 4 && nexusDukeClean(g), plan, actions);
+  game = advanceNexusDuke(last.after, g => ownerRevival(g, owner), plan, actions);
   plan.ship = {};
   assert.equal(nexusDukePlayer(game, owner).leaders.find(l => l.id === native[4])!.dead, false);
   assert.equal(game.dukeVidal!.leader.dead, true);