Connect staged group Nexus negotiations

docs/CURRENT_STATUS.md

@@ -33,8 +33,12 @@ member of an unexposed group, including a concealed zero marker. Focused
 engine cases stage the group and forces because live Nexus formation is not
 yet connected; they exercise real shipment, movement and turn-end actions. The
 related eight-file batch passes 53 cases, including existing pair behavior.
-The three-member option remains unexposed: consent, faction benefits, funding,
-movement and battle paths are not yet integrated for groups.
+Staged Basic classic Nexus games now connect unanimous proposal/answer/leave,
+Nexus readiness, table controls and minimal bot responses. These tests stage
+the group ledger; no lobby exposes it. The related nine-file batch passes 61
+cases. The three-member option remains
+unavailable: faction benefits, funding, and other group interactions still
+need integration. [Scope](OPTIONAL_ALLIANCE_VICTORY.md#group-nexus-negotiation--28-october-2026).
 
 **Basic allied No-Field transit — 28 October. Prototyped / Partial.** Richese
 may offer its ally an immediately revealed shipment into a Richese-occupied
@@ -126,12 +130,12 @@ benefits, victory and minimal legal AI. Consent, leaving behavior and shared
 benefit allocation are provisional online conventions. No group option is
 enabled or claimed complete by the standalone foundation. Shipment entry and
 visitor consequences now use the group-aware receipt and physical baseline.
-Nexus, funding and other engine paths still need integration before the option
-can be offered.
-Unconnected Nexus controls and a funding quote now model unanimous consent,
+The staged Nexus negotiation is connected; group funding, faction benefits
+and other engine paths still need integration before the option can be offered.
+Connected staged Nexus controls and a funding quote model unanimous consent,
 explicit donor allocations and edge-bound pledge authorizations. The engine
 still must issue and revoke unique edge authorizations, settle and refund
-escrow atomically, and connect these controls to native actions and AI.
+escrow atomically, and connect group funding controls to native actions and AI.
 The separate printed unlimited-size / three-stronghold variant remains missing;
 the current group model deliberately caps membership at three. The combined
 earlier batch passed 189 cases; the shipment batch passed 58 cases. The latest

docs/OPTIONAL_ALLIANCE_VICTORY.md

@@ -1,5 +1,24 @@
 # Optional three-stronghold alliance victory
 
+## Group Nexus negotiation — 28 October 2026
+
+**Integrated groundwork, not a selectable game mode.** In a staged Basic
+classic-faction Nexus with the group ledger present, a pair member or an
+unallied entrant can propose adding the entrant. Every participant must
+explicitly agree; a decline cancels the invitation and preserves the pair.
+Each proposal has a fresh event and revision, and an unanswered invitation
+holds the Nexus. Leaving a three-member group retains the other pair and its
+original edge age. Pair offers involving the newly formed group are cleared.
+The staged table renders the group controls and minimal bots can answer.
+
+Unanimity, cancellation, the pending-Nexus hold and the surviving pair are
+provisional online procedures, not publisher rulings. This scope excludes
+expansion decks/factions, Advanced, optional modules, live Truthtrance
+commitments and pledged aid. No lobby creates the group ledger: faction ally
+benefits, group funding and other interactions must be connected before any
+player can start the printed larger-alliance option. The separate unlimited
+alliance variant remains missing.
+
 **Prototyped / Partial — 28 October 2026.** The host can select a shorter
 two-member alliance game in the lobby. With at least three physical
 controllers, allied factions need three distinct qualifying strongholds

docs/RULE_DECISIONS.md

@@ -1,5 +1,11 @@
 # Rule decision index
 
+## Group Nexus negotiations — 28 October 2026
+
+For the unexposed Basic group foundation, unanimous consent, a held Nexus
+while an invitation is pending, and retaining the remaining pair on departure
+are provisional online procedures. [Scope](OPTIONAL_ALLIANCE_VICTORY.md#group-nexus-negotiation--28-october-2026).
+
 ## Residual Poison and Semuta with Basic independent cards — 28 October 2026
 
 The existing provisional public-discard reaction also applies to the clean