Q1: keep other work's chat mentions out of task prompts

Every mention already wakes the agent through its own chat-wake task, so
ordinary tasks no longer inject the org-wide mention inbox.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main/services/task-execution-service.ts

@@ -15,7 +15,6 @@ import {
   buildAgentInstructions,
   buildTaskPrompt,
   type ChatContextBlock,
-  type InboxContextBlock,
   type GoalRow,
   type ProjectRow,
   type SkillRuntimeSnapshotRow,
@@ -142,7 +141,6 @@ export class TaskExecutionService {
         workspace: workspace ? { id: workspace.id, localPath: workspace.local_path, writeAccess: task.requires_filesystem === 1 } : null,
       };
       const chatContext = this.loadChatContext(orgId, isolation);
-      const inboxContext = chatContext ? null : this.loadInboxContext(orgId, agent.id);
       // The CEO is the c_suite role — the same predicate the grant system
       // enforces — not "has no manager", which any board hire can match.
       const isCeo = agent.role_level === "c_suite";
@@ -179,7 +177,6 @@ export class TaskExecutionService {
             hasReports,
             managerName: this.agentName(orgId, agent.manager_agent_id),
             chatContext,
-            inboxContext,
             priorCompletedRuns: this.completedRunCount(task.id, runId),
           }),
           toolContext,
@@ -555,26 +552,6 @@ export class TaskExecutionService {
     };
   }
 
-  private loadInboxContext(orgId: string, agentId: string): InboxContextBlock | null {
-    const messages = this.db.prepare(`
-      select m.body_md,
-             coalesce(a.name, e.display_name, m.sender_type) as sender_name,
-             s.name as channel_name
-      from chat_mentions cm
-      join chat_messages m on m.id = cm.message_id
-      join chat_spaces s on s.id = m.space_id
-      left join agents a on a.id = m.sender_id and m.sender_type = 'agent'
-      left join employees e on e.id = m.sender_id and m.sender_type = 'employee'
-      where cm.target_type = 'agent' and cm.target_id = ? and m.org_id = ? and m.deleted_at is null
-      order by m.created_at desc
-      limit 10
-    `).all(agentId, orgId) as Array<{ body_md: string; sender_name: string; channel_name: string }>;
-    if (messages.length === 0) return null;
-    return {
-      transcript: messages.reverse().map((m) => `[${m.sender_name} in #${m.channel_name}]: ${m.body_md}`).join("\n"),
-    };
-  }
-
   private completedRunCount(taskId: string, excludingRunId: string): number {
     const row = this.db.prepare("select count(*) as n from task_runs where task_id = ? and state = 'completed' and id <> ?")
       .get(taskId, excludingRunId) as { n: number };