fix: support same-service tribunal runtime

src/db.test.ts

@@ -853,7 +853,7 @@ describe('paired room registration', () => {
     expect(isPairedRoomJid('dc:explicit-single')).toBe(false);
   });
 
-  it('keeps explicit tribunal configured but not runnable without dual registration', () => {
+  it('lets explicit tribunal become runnable when the configured reviewer can run on the solo registration', () => {
     setRegisteredGroup('dc:explicit-tribunal', {
       name: 'Explicit Tribunal Claude',
       folder: 'explicit-tribunal-claude',
@@ -868,8 +868,8 @@ describe('paired room registration', () => {
 
     expect(getExplicitRoomMode('dc:explicit-tribunal')).toBe('tribunal');
     expect(getEffectiveRoomMode('dc:explicit-tribunal')).toBe('tribunal');
-    expect(getEffectiveRuntimeRoomMode('dc:explicit-tribunal')).toBe('single');
+    expect(getEffectiveRuntimeRoomMode('dc:explicit-tribunal')).toBe('tribunal');
-    expect(isPairedRoomJid('dc:explicit-tribunal')).toBe(false);
+    expect(isPairedRoomJid('dc:explicit-tribunal')).toBe(true);
 
     clearExplicitRoomMode('dc:explicit-tribunal');
 
@@ -878,6 +878,24 @@ describe('paired room registration', () => {
     expect(getEffectiveRuntimeRoomMode('dc:explicit-tribunal')).toBe('single');
     expect(isPairedRoomJid('dc:explicit-tribunal')).toBe(false);
   });
+
+  it('keeps explicit tribunal non-runnable when the configured reviewer service is unavailable', () => {
+    setRegisteredGroup('dc:explicit-tribunal-codex', {
+      name: 'Explicit Tribunal Codex',
+      folder: 'explicit-tribunal-codex',
+      trigger: '@Codex',
+      added_at: '2024-01-01T00:00:00.000Z',
+      agentType: 'codex',
+    });
+
+    setExplicitRoomMode('dc:explicit-tribunal-codex', 'tribunal');
+
+    expect(getEffectiveRoomMode('dc:explicit-tribunal-codex')).toBe('tribunal');
+    expect(getEffectiveRuntimeRoomMode('dc:explicit-tribunal-codex')).toBe(
+      'single',
+    );
+    expect(isPairedRoomJid('dc:explicit-tribunal-codex')).toBe(false);
+  });
 });
 
 describe('service handoff completion', () => {

src/db.ts

@@ -9,6 +9,7 @@ import {
   CODEX_REVIEW_SERVICE_ID,
   DATA_DIR,
   normalizeServiceId,
+  REVIEWER_AGENT_TYPE,
   SERVICE_ID,
   SERVICE_SESSION_SCOPE,
   STORE_DIR,
@@ -1978,9 +1979,19 @@ export function getEffectiveRoomMode(chatJid: string): RoomMode {
   return getExplicitRoomMode(chatJid) ?? inferRoomModeForJid(chatJid);
 }
 
+function canRunTribunalFromRegisteredAgentTypes(
+  agentTypes: readonly AgentType[],
+): boolean {
+  const types = new Set(agentTypes);
+  if (types.size === 0) return false;
+  return REVIEWER_AGENT_TYPE === 'claude-code'
+    ? types.has('claude-code')
+    : types.has('codex');
+}
+
 export function getEffectiveRuntimeRoomMode(chatJid: string): RoomMode {
   return getEffectiveRoomMode(chatJid) === 'tribunal' &&
-    inferRoomModeForJid(chatJid) === 'tribunal'
+    canRunTribunalFromRegisteredAgentTypes(getRegisteredAgentTypesForJid(chatJid))
     ? 'tribunal'
     : 'single';
 }

src/message-agent-executor.test.ts

@@ -338,6 +338,60 @@ describe('runAgentForGroup room memory', () => {
     );
   });
 
+  it('preserves reviewer role metadata for same-service review turns', async () => {
+    const group = { ...makeGroup(), folder: 'test-group' };
+    vi.mocked(serviceRouting.getEffectiveChannelLease).mockReturnValue({
+      chat_jid: 'group@test',
+      owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      arbiter_service_id: null,
+      activated_at: null,
+      reason: null,
+      explicit: false,
+    });
+    vi.mocked(db.getLatestOpenPairedTaskForChat).mockReturnValue({
+      id: 'paired-task-review',
+      chat_jid: 'group@test',
+      group_folder: 'test-group',
+      owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      title: null,
+      source_ref: 'HEAD',
+      plan_notes: null,
+      round_trip_count: 0,
+      review_requested_at: '2026-03-29T00:00:00.000Z',
+      status: 'review_ready',
+      arbiter_verdict: null,
+      arbiter_requested_at: null,
+      completion_reason: null,
+      created_at: '2026-03-29T00:00:00.000Z',
+      updated_at: '2026-03-29T00:00:00.000Z',
+    });
+
+    await runAgentForGroup(makeDeps(), {
+      group,
+      prompt: 'hello',
+      chatJid: 'group@test',
+      runId: 'run-same-service-reviewer',
+    });
+
+    expect(agentRunner.runAgentProcess).toHaveBeenCalledWith(
+      group,
+      expect.objectContaining({
+        roomRoleContext: {
+          serviceId: 'claude',
+          role: 'reviewer',
+          ownerServiceId: 'claude',
+          reviewerServiceId: 'claude',
+          failoverOwner: false,
+        },
+      }),
+      expect.any(Function),
+      undefined,
+      undefined,
+    );
+  });
+
   it('allows silent reviewer outputs', async () => {
     const group = { ...makeGroup(), folder: 'test-group', workDir: '/repo' };
     vi.mocked(serviceRouting.getEffectiveChannelLease).mockReturnValue({

src/message-agent-executor.ts

@@ -172,6 +172,7 @@ export async function runAgentForGroup(
   const roomRoleContext = buildRoomRoleContext(
     currentLease,
     effectiveServiceId,
+    activeRole,
   );
   const pairedExecutionContext = preparePairedExecutionContext({
     group,

src/message-runtime.test.ts

@@ -180,6 +180,7 @@ import * as db from './db.js';
 import { resolveGroupIpcPath } from './group-folder.js';
 import { createMessageRuntime } from './message-runtime.js';
 import * as config from './config.js';
+import * as serviceRouting from './service-routing.js';
 import type { Channel, RegisteredGroup } from './types.js';
 
 function makeGroup(agentType: 'claude-code' | 'codex'): RegisteredGroup {
@@ -869,6 +870,228 @@ describe('createMessageRuntime', () => {
     );
   });
 
+  it('does not fabricate owner labels from same-service raw bot history in paired turn prompts', async () => {
+    const chatJid = 'group@test';
+    const group = makeGroup('claude-code');
+    const saveState = vi.fn();
+    const lastAgentTimestamps: Record<string, string> = {};
+    const channel: Channel = {
+      ...makeChannel(chatJid),
+      isOwnMessage: vi.fn((msg) => msg.sender === 'shared-bot@test'),
+    };
+
+    vi.mocked(db.isPairedRoomJid).mockReturnValue(true);
+    vi.mocked(serviceRouting.getEffectiveChannelLease).mockReturnValue({
+      chat_jid: chatJid,
+      owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      arbiter_service_id: null,
+      activated_at: null,
+      reason: null,
+      explicit: false,
+    });
+    vi.mocked(db.getLatestOpenPairedTaskForChat).mockReturnValue({
+      id: 'task-same-service',
+      chat_jid: chatJid,
+      group_folder: group.folder,
+      owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      title: null,
+      source_ref: 'HEAD',
+      plan_notes: null,
+      review_requested_at: '2026-03-30T00:00:00.000Z',
+      round_trip_count: 1,
+      status: 'in_review',
+      arbiter_verdict: null,
+      arbiter_requested_at: null,
+      completion_reason: null,
+      created_at: '2026-03-30T00:00:00.000Z',
+      updated_at: '2026-03-30T00:00:00.000Z',
+    });
+    vi.mocked(db.getPairedTurnOutputs).mockReturnValue([]);
+    vi.mocked(db.getMessagesSince).mockReturnValue([
+      {
+        id: 'human-1',
+        chat_jid: chatJid,
+        sender: 'user@test',
+        sender_name: 'User',
+        content: '계속 진행해줘',
+        timestamp: '2026-03-30T00:00:01.000Z',
+        is_bot_message: false,
+      },
+      {
+        id: 'bot-1',
+        chat_jid: chatJid,
+        sender: 'shared-bot@test',
+        sender_name: 'Shared Bot',
+        content: 'reviewer-like reply',
+        timestamp: '2026-03-30T00:00:02.000Z',
+        is_bot_message: true,
+      },
+    ] as any);
+    vi.mocked(agentRunner.runAgentProcess).mockImplementation(
+      async (_group, input, _onProcess, onOutput) => {
+        expect(input.prompt).toContain(
+          '<message sender="Shared Bot" time="30 Mar 09:00">reviewer-like reply</message>',
+        );
+        expect(input.prompt).not.toContain(
+          '<message sender="owner" time="30 Mar 09:00">reviewer-like reply</message>',
+        );
+        await onOutput?.({
+          status: 'success',
+          phase: 'final',
+          result: '같은 서비스 턴 확인',
+          newSessionId: 'session-same-service-fallback',
+        });
+        return {
+          status: 'success',
+          result: '같은 서비스 턴 확인',
+          newSessionId: 'session-same-service-fallback',
+        };
+      },
+    );
+
+    const runtime = createMessageRuntime({
+      assistantName: 'Andy',
+      idleTimeout: 1_000,
+      pollInterval: 1_000,
+      timezone: 'Asia/Seoul',
+      triggerPattern: /^@Andy\b/i,
+      channels: [channel],
+      queue: {
+        registerProcess: vi.fn(),
+        closeStdin: vi.fn(),
+        notifyIdle: vi.fn(),
+      } as any,
+      getRegisteredGroups: () => ({ [chatJid]: group }),
+      getSessions: () => ({}),
+      getLastTimestamp: () => '',
+      setLastTimestamp: vi.fn(),
+      getLastAgentTimestamps: () => lastAgentTimestamps,
+      saveState,
+      persistSession: vi.fn(),
+      clearSession: vi.fn(),
+    });
+
+    const result = await runtime.processGroupMessages(chatJid, {
+      runId: 'run-same-service-raw-history',
+      reason: 'messages',
+    });
+
+    expect(result).toBe(true);
+    expect(agentRunner.runAgentProcess).toHaveBeenCalledTimes(1);
+  });
+
+  it('does not fabricate owner labels from same-service raw bot history in arbiter prompts', async () => {
+    const chatJid = 'group@test';
+    const group = makeGroup('claude-code');
+    const channel: Channel = {
+      ...makeChannel(chatJid),
+      isOwnMessage: vi.fn((msg) => msg.sender === 'shared-bot@test'),
+    };
+
+    vi.mocked(db.isPairedRoomJid).mockReturnValue(true);
+    vi.mocked(serviceRouting.getEffectiveChannelLease).mockReturnValue({
+      chat_jid: chatJid,
+      owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      arbiter_service_id: null,
+      activated_at: null,
+      reason: null,
+      explicit: false,
+    });
+    vi.mocked(db.getLatestOpenPairedTaskForChat).mockReturnValue({
+      id: 'task-same-service-arbiter',
+      chat_jid: chatJid,
+      group_folder: group.folder,
+      owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      title: null,
+      source_ref: 'HEAD',
+      plan_notes: null,
+      review_requested_at: '2026-03-30T00:00:00.000Z',
+      round_trip_count: 2,
+      status: 'arbiter_requested',
+      arbiter_verdict: null,
+      arbiter_requested_at: '2026-03-30T00:00:10.000Z',
+      completion_reason: null,
+      created_at: '2026-03-30T00:00:00.000Z',
+      updated_at: '2026-03-30T00:00:10.000Z',
+    });
+    vi.mocked(db.getPairedTurnOutputs).mockReturnValue([]);
+    vi.mocked(db.getRecentChatMessages).mockReturnValue([
+      {
+        id: 'human-1',
+        chat_jid: chatJid,
+        sender: 'user@test',
+        sender_name: 'User',
+        content: '둘 중 누가 맞는지 판단해줘',
+        timestamp: '2026-03-30T00:00:01.000Z',
+        is_bot_message: false,
+      },
+      {
+        id: 'bot-1',
+        chat_jid: chatJid,
+        sender: 'shared-bot@test',
+        sender_name: 'Shared Bot',
+        content: 'reviewer-like reply',
+        timestamp: '2026-03-30T00:00:02.000Z',
+        is_bot_message: true,
+      },
+    ] as any);
+    vi.mocked(agentRunner.runAgentProcess).mockImplementation(
+      async (_group, input, _onProcess, onOutput) => {
+        expect(input.prompt).toContain(
+          '<message sender="Shared Bot" time="30 Mar 09:00">reviewer-like reply</message>',
+        );
+        expect(input.prompt).not.toContain(
+          '<message sender="owner" time="30 Mar 09:00">reviewer-like reply</message>',
+        );
+        await onOutput?.({
+          status: 'success',
+          phase: 'final',
+          result: '중재 문맥 확인',
+          newSessionId: 'session-same-service-arbiter',
+        });
+        return {
+          status: 'success',
+          result: '중재 문맥 확인',
+          newSessionId: 'session-same-service-arbiter',
+        };
+      },
+    );
+
+    const runtime = createMessageRuntime({
+      assistantName: 'Andy',
+      idleTimeout: 1_000,
+      pollInterval: 1_000,
+      timezone: 'Asia/Seoul',
+      triggerPattern: /^@Andy\b/i,
+      channels: [channel],
+      queue: {
+        registerProcess: vi.fn(),
+        closeStdin: vi.fn(),
+        notifyIdle: vi.fn(),
+      } as any,
+      getRegisteredGroups: () => ({ [chatJid]: group }),
+      getSessions: () => ({}),
+      getLastTimestamp: () => '',
+      setLastTimestamp: vi.fn(),
+      getLastAgentTimestamps: () => ({}),
+      saveState: vi.fn(),
+      persistSession: vi.fn(),
+      clearSession: vi.fn(),
+    });
+
+    const result = await runtime.processGroupMessages(chatJid, {
+      runId: 'run-same-service-arbiter-fallback',
+      reason: 'messages',
+    });
+
+    expect(result).toBe(true);
+    expect(agentRunner.runAgentProcess).toHaveBeenCalledTimes(1);
+  });
+
   it('allows follow-up messages without a trigger after a visible reply in non-main groups', async () => {
     const chatJid = 'group@test';
     const group: RegisteredGroup = {

src/message-runtime.ts

@@ -132,6 +132,9 @@ export function createMessageRuntime(deps: MessageRuntimeDeps): {
   ): NewMessage[] => {
     if (!isPairedRoomJid(chatJid)) return messages;
     const lease = getEffectiveChannelLease(chatJid);
+    const sharedOwnerReviewerService =
+      lease.reviewer_service_id !== null &&
+      lease.owner_service_id === lease.reviewer_service_id;
     // Build bot-user-id → channel-name mapping from connected channels
     const botIdToChannelName = new Map<string, string>();
     for (const ch of deps.channels) {
@@ -155,6 +158,15 @@ export function createMessageRuntime(deps: MessageRuntimeDeps): {
       if (!channelName) return msg;
       const serviceId = channelToService[channelName];
       if (!serviceId) return msg;
+      // Raw channel history cannot tell owner/reviewer apart when both roles
+      // are delivered by the same service, so avoid fabricating a role label.
+      if (
+        sharedOwnerReviewerService &&
+        serviceId === lease.owner_service_id &&
+        serviceId === lease.reviewer_service_id
+      ) {
+        return msg;
+      }
       const role =
         serviceId === lease.owner_service_id
           ? 'owner'

src/room-role-context.test.ts

@@ -75,6 +75,31 @@ describe('buildRoomRoleContext', () => {
     });
   });
 
+  it('uses the preferred reviewer role when owner and reviewer share the same service', () => {
+    expect(
+      buildRoomRoleContext(
+        {
+          chat_jid: 'group@test',
+          owner_service_id: 'claude',
+          reviewer_service_id: 'claude',
+          arbiter_service_id: null,
+          activated_at: null,
+          reason: null,
+          explicit: false,
+        },
+        'claude',
+        'reviewer',
+      ),
+    ).toEqual({
+      serviceId: 'claude',
+      role: 'reviewer',
+      ownerServiceId: 'claude',
+      reviewerServiceId: 'claude',
+      failoverOwner: false,
+      arbiterServiceId: undefined,
+    });
+  });
+
   it('returns undefined for a non-paired room', () => {
     expect(
       buildRoomRoleContext(

src/room-role-context.ts

@@ -3,12 +3,13 @@ import {
   CODEX_REVIEW_SERVICE_ID,
   normalizeServiceId,
 } from './config.js';
-import type { RoomRoleContext } from './types.js';
+import type { PairedRoomRole, RoomRoleContext } from './types.js';
 import type { EffectiveChannelLease } from './service-routing.js';
 
 export function buildRoomRoleContext(
   lease: EffectiveChannelLease,
   serviceId: string,
+  preferredRole?: PairedRoomRole,
 ): RoomRoleContext | undefined {
   const normalizedServiceId = normalizeServiceId(serviceId);
   const reviewerServiceId = lease.reviewer_service_id
@@ -24,14 +25,20 @@ export function buildRoomRoleContext(
     ? normalizeServiceId(lease.arbiter_service_id)
     : undefined;
 
-  // Check arbiter role first: if this service matches the arbiter_service_id,
+  const matches = {
-  // it takes the arbiter role (even if it also matches owner or reviewer)
+    owner: ownerServiceId === normalizedServiceId,
+    reviewer: reviewerServiceId === normalizedServiceId,
+    arbiter: arbiterServiceId === normalizedServiceId,
+  };
+
   const role =
-    arbiterServiceId && arbiterServiceId === normalizedServiceId
+    preferredRole && matches[preferredRole]
+      ? preferredRole
+      : matches.arbiter
       ? 'arbiter'
-      : ownerServiceId === normalizedServiceId
+      : matches.owner
         ? 'owner'
-        : reviewerServiceId === normalizedServiceId
+        : matches.reviewer
           ? 'reviewer'
           : null;
 

src/service-routing.test.ts

@@ -108,7 +108,7 @@ describe('service-routing global failover', () => {
     });
   });
 
-  it('does not create reviewer lease for explicit tribunal without dual registration capability', () => {
+  it('creates a same-service reviewer lease when explicit tribunal is runnable on a solo registration', () => {
     setRegisteredGroup('dc:explicit-tribunal', {
       name: 'Explicit Tribunal Claude',
       folder: 'explicit-tribunal-claude',
@@ -121,6 +121,24 @@ describe('service-routing global failover', () => {
     expect(getEffectiveChannelLease('dc:explicit-tribunal')).toMatchObject({
       chat_jid: 'dc:explicit-tribunal',
       owner_service_id: 'claude',
+      reviewer_service_id: 'claude',
+      explicit: false,
+    });
+  });
+
+  it('keeps reviewer lease disabled when explicit tribunal cannot deliver the configured reviewer', () => {
+    setRegisteredGroup('dc:explicit-tribunal-codex', {
+      name: 'Explicit Tribunal Codex',
+      folder: 'explicit-tribunal-codex',
+      trigger: '@Codex',
+      added_at: '2024-01-01T00:00:00.000Z',
+      agentType: 'codex',
+    });
+    setExplicitRoomMode('dc:explicit-tribunal-codex', 'tribunal');
+
+    expect(getEffectiveChannelLease('dc:explicit-tribunal-codex')).toMatchObject({
+      chat_jid: 'dc:explicit-tribunal-codex',
+      owner_service_id: 'codex-main',
       reviewer_service_id: null,
       explicit: false,
     });