From 3258cd4f4d5680b27df5c413d42c6d9eda62bd08 Mon Sep 17 00:00:00 2001
From: Jason Woltje <jason.woltje@uscllc.com>
Date: Tue, 17 Feb 2026 15:39:15 -0600
Subject: [PATCH] feat(orchestrator): add SSE events, queue controls, and
 mosaic rails sync

---
 .env.example                                  |  11 ++
 .gitignore                                    |  10 ++
 .mosaic/README.md                             |   4 +-
 .mosaic/orchestrator/config.json              |  18 +++
 .mosaic/orchestrator/logs/.gitkeep            |   1 +
 .mosaic/orchestrator/results/.gitkeep         |   1 +
 .mosaic/quality-rails.yml                     |  10 ++
 CLAUDE.md                                     |   2 +-
 SOUL.md                                       |   2 +-
 apps/orchestrator/README.md                   |  40 +++--
 .../src/api/agents/agent-events.service.ts    |  70 +++++++++
 .../agents-killswitch.controller.spec.ts      |  26 +++-
 .../src/api/agents/agents.controller.spec.ts  |  30 +++-
 .../src/api/agents/agents.controller.ts       |  45 +++++-
 .../src/api/agents/agents.module.ts           |   3 +-
 .../src/api/queue/queue-api.module.ts         |  11 ++
 .../src/api/queue/queue.controller.spec.ts    |  65 ++++++++
 .../src/api/queue/queue.controller.ts         |  39 +++++
 apps/orchestrator/src/app.module.ts           |   2 +
 .../src/config/orchestrator.config.spec.ts    |   4 +-
 .../src/config/orchestrator.config.ts         |  10 +-
 apps/orchestrator/src/queue/queue.module.ts   |   3 +-
 .../src/queue/queue.service.spec.ts           |  11 +-
 apps/orchestrator/src/queue/queue.service.ts  |  64 +++++++-
 .../src/spawner/agent-lifecycle.service.ts    |  18 +++
 .../src/spawner/agent-spawner.service.ts      |  27 ++++
 .../src/app/api/orchestrator/events/route.ts  |  50 +++++++
 .../app/api/orchestrator/queue/pause/route.ts |  43 ++++++
 .../api/orchestrator/queue/resume/route.ts    |  43 ++++++
 .../app/api/orchestrator/queue/stats/route.ts |  43 ++++++
 .../components/widgets/AgentStatusWidget.tsx  |  71 +++++----
 .../components/widgets/TaskProgressWidget.tsx | 140 +++++++++++++++---
 docs/tasks.md                                 |  23 +++
 scripts/agent/orchestrator-daemon.sh          | 102 +++++++++++++
 scripts/agent/orchestrator-worker.sh          |  63 ++++++++
 35 files changed, 1016 insertions(+), 89 deletions(-)
 create mode 100644 .mosaic/orchestrator/config.json
 create mode 100644 .mosaic/orchestrator/logs/.gitkeep
 create mode 100644 .mosaic/orchestrator/results/.gitkeep
 create mode 100644 .mosaic/quality-rails.yml
 create mode 100644 apps/orchestrator/src/api/agents/agent-events.service.ts
 create mode 100644 apps/orchestrator/src/api/queue/queue-api.module.ts
 create mode 100644 apps/orchestrator/src/api/queue/queue.controller.spec.ts
 create mode 100644 apps/orchestrator/src/api/queue/queue.controller.ts
 create mode 100644 apps/web/src/app/api/orchestrator/events/route.ts
 create mode 100644 apps/web/src/app/api/orchestrator/queue/pause/route.ts
 create mode 100644 apps/web/src/app/api/orchestrator/queue/resume/route.ts
 create mode 100644 apps/web/src/app/api/orchestrator/queue/stats/route.ts
 create mode 100755 scripts/agent/orchestrator-daemon.sh
 create mode 100755 scripts/agent/orchestrator-worker.sh

diff --git a/.env.example b/.env.example
index 8615344..37ca636 100644
--- a/.env.example
+++ b/.env.example
@@ -381,6 +381,17 @@ ELEMENT_IMAGE_TAG=latest
 # Health endpoints (/health/*) remain unauthenticated
 ORCHESTRATOR_API_KEY=REPLACE_WITH_RANDOM_API_KEY_MINIMUM_32_CHARS
 
+# Runtime safety defaults (recommended for low-memory hosts)
+MAX_CONCURRENT_AGENTS=2
+SESSION_CLEANUP_DELAY_MS=30000
+ORCHESTRATOR_QUEUE_NAME=orchestrator-tasks
+ORCHESTRATOR_QUEUE_CONCURRENCY=1
+ORCHESTRATOR_QUEUE_MAX_RETRIES=3
+ORCHESTRATOR_QUEUE_BASE_DELAY_MS=1000
+ORCHESTRATOR_QUEUE_MAX_DELAY_MS=60000
+SANDBOX_DEFAULT_MEMORY_MB=256
+SANDBOX_DEFAULT_CPU_LIMIT=1.0
+
 # ======================
 # AI Provider Configuration
 # ======================
diff --git a/.gitignore b/.gitignore
index 1ce13dc..7e684f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,3 +59,13 @@ yarn-error.log*
 
 # Orchestrator reports (generated by QA automation, cleaned up after processing)
 docs/reports/qa-automation/
+
+# Repo-local orchestrator runtime artifacts
+.mosaic/orchestrator/orchestrator.pid
+.mosaic/orchestrator/state.json
+.mosaic/orchestrator/tasks.json
+.mosaic/orchestrator/matrix_state.json
+.mosaic/orchestrator/logs/*.log
+.mosaic/orchestrator/results/*
+!.mosaic/orchestrator/logs/.gitkeep
+!.mosaic/orchestrator/results/.gitkeep
diff --git a/.mosaic/README.md b/.mosaic/README.md
index 606f88a..3e13da9 100644
--- a/.mosaic/README.md
+++ b/.mosaic/README.md
@@ -4,12 +4,12 @@ This repository is attached to the machine-wide Mosaic framework.
 
 ## Load Order for Agents
 
-1. `~/.mosaic/STANDARDS.md`
+1. `~/.config/mosaic/STANDARDS.md`
 2. `AGENTS.md` (this repository)
 3. `.mosaic/repo-hooks.sh` (repo-specific automation hooks)
 
 ## Purpose
 
-- Keep universal standards in `~/.mosaic`
+- Keep universal standards in `~/.config/mosaic`
 - Keep repo-specific behavior in this repo
 - Avoid copying large runtime configs into each project
diff --git a/.mosaic/orchestrator/config.json b/.mosaic/orchestrator/config.json
new file mode 100644
index 0000000..ec50f98
--- /dev/null
+++ b/.mosaic/orchestrator/config.json
@@ -0,0 +1,18 @@
+{
+  "enabled": true,
+  "transport": "matrix",
+  "matrix": {
+    "control_room_id": "",
+    "workspace_id": "",
+    "homeserver_url": "",
+    "access_token": "",
+    "bot_user_id": ""
+  },
+  "worker": {
+    "runtime": "codex",
+    "command_template": "bash scripts/agent/orchestrator-worker.sh {task_file}",
+    "timeout_seconds": 7200,
+    "max_attempts": 1
+  },
+  "quality_gates": ["pnpm lint", "pnpm typecheck", "pnpm test"]
+}
diff --git a/.mosaic/orchestrator/logs/.gitkeep b/.mosaic/orchestrator/logs/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/.mosaic/orchestrator/logs/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/.mosaic/orchestrator/results/.gitkeep b/.mosaic/orchestrator/results/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/.mosaic/orchestrator/results/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/.mosaic/quality-rails.yml b/.mosaic/quality-rails.yml
new file mode 100644
index 0000000..816ea24
--- /dev/null
+++ b/.mosaic/quality-rails.yml
@@ -0,0 +1,10 @@
+enabled: false
+template: ""
+
+# Set enabled: true and choose one template:
+# - typescript-node
+# - typescript-nextjs
+# - monorepo
+#
+# Apply manually:
+#   ~/.config/mosaic/bin/mosaic-quality-apply --template <template> --target <repo>
diff --git a/CLAUDE.md b/CLAUDE.md
index 5057017..ff86786 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -7,7 +7,7 @@ Authoritative repo guidance is in `AGENTS.md`.
 Load order for Claude sessions:
 
 1. `SOUL.md`
-2. `~/.mosaic/STANDARDS.md`
+2. `~/.config/mosaic/STANDARDS.md`
 3. `AGENTS.md`
 4. `.mosaic/repo-hooks.sh`
 
diff --git a/SOUL.md b/SOUL.md
index c961098..11f7bf0 100644
--- a/SOUL.md
+++ b/SOUL.md
@@ -10,7 +10,7 @@ You are Jarvis for the Mosaic Stack repository, running on the current agent run
 - Be calm and clear: keep responses concise, chunked, and PDA-friendly.
 - Respect canonical sources:
   - Repo operations and conventions: `AGENTS.md`
-  - Machine-wide rails: `~/.mosaic/STANDARDS.md`
+  - Machine-wide rails: `~/.config/mosaic/STANDARDS.md`
   - Repo lifecycle hooks: `.mosaic/repo-hooks.sh`
 
 ## Guardrails
diff --git a/apps/orchestrator/README.md b/apps/orchestrator/README.md
index 3621f7d..0f470c9 100644
--- a/apps/orchestrator/README.md
+++ b/apps/orchestrator/README.md
@@ -45,12 +45,21 @@ Monitored via `apps/web/` (Agent Dashboard).
 
 ### Agents
 
-| Method | Path                      | Description            |
-| ------ | ------------------------- | ---------------------- |
-| POST   | `/agents/spawn`           | Spawn a new agent      |
-| GET    | `/agents/:agentId/status` | Get agent status       |
-| POST   | `/agents/:agentId/kill`   | Kill a single agent    |
-| POST   | `/agents/kill-all`        | Kill all active agents |
+| Method | Path                      | Description               |
+| ------ | ------------------------- | ------------------------- |
+| POST   | `/agents/spawn`           | Spawn a new agent         |
+| GET    | `/agents/:agentId/status` | Get agent status          |
+| POST   | `/agents/:agentId/kill`   | Kill a single agent       |
+| POST   | `/agents/kill-all`        | Kill all active agents    |
+| GET    | `/agents/events`          | SSE lifecycle/task events |
+
+### Queue
+
+| Method | Path            | Description                  |
+| ------ | --------------- | ---------------------------- |
+| GET    | `/queue/stats`  | Queue depth and worker stats |
+| POST   | `/queue/pause`  | Pause queue processing       |
+| POST   | `/queue/resume` | Resume queue processing      |
 
 #### POST /agents/spawn
 
@@ -176,14 +185,17 @@ pnpm --filter @mosaic/orchestrator lint
 
 Environment variables loaded via `@nestjs/config`. Key variables:
 
-| Variable            | Description                            |
-| ------------------- | -------------------------------------- |
-| `ORCHESTRATOR_PORT` | HTTP port (default: 3001)              |
-| `CLAUDE_API_KEY`    | Claude API key for agents              |
-| `VALKEY_HOST`       | Valkey/Redis host (default: localhost) |
-| `VALKEY_PORT`       | Valkey/Redis port (default: 6379)      |
-| `COORDINATOR_URL`   | Quality Coordinator base URL           |
-| `SANDBOX_ENABLED`   | Enable Docker sandbox (true/false)     |
+| Variable                         | Description                                        |
+| -------------------------------- | -------------------------------------------------- |
+| `ORCHESTRATOR_PORT`              | HTTP port (default: 3001)                          |
+| `CLAUDE_API_KEY`                 | Claude API key for agents                          |
+| `VALKEY_HOST`                    | Valkey/Redis host (default: localhost)             |
+| `VALKEY_PORT`                    | Valkey/Redis port (default: 6379)                  |
+| `COORDINATOR_URL`                | Quality Coordinator base URL                       |
+| `SANDBOX_ENABLED`                | Enable Docker sandbox (true/false)                 |
+| `MAX_CONCURRENT_AGENTS`          | Maximum concurrent in-memory sessions (default: 2) |
+| `ORCHESTRATOR_QUEUE_CONCURRENCY` | BullMQ worker concurrency (default: 1)             |
+| `SANDBOX_DEFAULT_MEMORY_MB`      | Sandbox memory limit in MB (default: 256)          |
 
 ## Related Documentation
 
diff --git a/apps/orchestrator/src/api/agents/agent-events.service.ts b/apps/orchestrator/src/api/agents/agent-events.service.ts
new file mode 100644
index 0000000..9d91168
--- /dev/null
+++ b/apps/orchestrator/src/api/agents/agent-events.service.ts
@@ -0,0 +1,70 @@
+import { Injectable, Logger, OnModuleInit } from "@nestjs/common";
+import { randomUUID } from "crypto";
+import { ValkeyService } from "../../valkey/valkey.service";
+import type { EventHandler, OrchestratorEvent } from "../../valkey/types";
+
+type UnsubscribeFn = () => void;
+
+@Injectable()
+export class AgentEventsService implements OnModuleInit {
+  private readonly logger = new Logger(AgentEventsService.name);
+  private readonly subscribers = new Map<string, EventHandler>();
+  private connected = false;
+
+  constructor(private readonly valkeyService: ValkeyService) {}
+
+  async onModuleInit(): Promise<void> {
+    if (this.connected) return;
+
+    await this.valkeyService.subscribeToEvents(
+      (event) => {
+        this.subscribers.forEach((handler) => {
+          void handler(event);
+        });
+      },
+      (error, _raw, channel) => {
+        this.logger.warn(`Event stream parse/validation warning on ${channel}: ${error.message}`);
+      }
+    );
+
+    this.connected = true;
+    this.logger.log("Agent event stream subscription active");
+  }
+
+  subscribe(handler: EventHandler): UnsubscribeFn {
+    const id = randomUUID();
+    this.subscribers.set(id, handler);
+    return () => {
+      this.subscribers.delete(id);
+    };
+  }
+
+  async getInitialSnapshot(): Promise<{
+    type: "stream.snapshot";
+    timestamp: string;
+    agents: number;
+    tasks: number;
+  }> {
+    const [agents, tasks] = await Promise.all([
+      this.valkeyService.listAgents(),
+      this.valkeyService.listTasks(),
+    ]);
+
+    return {
+      type: "stream.snapshot",
+      timestamp: new Date().toISOString(),
+      agents: agents.length,
+      tasks: tasks.length,
+    };
+  }
+
+  createHeartbeat(): OrchestratorEvent {
+    return {
+      type: "task.processing",
+      timestamp: new Date().toISOString(),
+      data: {
+        heartbeat: true,
+      },
+    };
+  }
+}
diff --git a/apps/orchestrator/src/api/agents/agents-killswitch.controller.spec.ts b/apps/orchestrator/src/api/agents/agents-killswitch.controller.spec.ts
index 9fd7b50..a10fb7e 100644
--- a/apps/orchestrator/src/api/agents/agents-killswitch.controller.spec.ts
+++ b/apps/orchestrator/src/api/agents/agents-killswitch.controller.spec.ts
@@ -4,6 +4,7 @@ import { QueueService } from "../../queue/queue.service";
 import { AgentSpawnerService } from "../../spawner/agent-spawner.service";
 import { AgentLifecycleService } from "../../spawner/agent-lifecycle.service";
 import { KillswitchService } from "../../killswitch/killswitch.service";
+import { AgentEventsService } from "./agent-events.service";
 import type { KillAllResult } from "../../killswitch/killswitch.service";
 
 describe("AgentsController - Killswitch Endpoints", () => {
@@ -20,6 +21,12 @@ describe("AgentsController - Killswitch Endpoints", () => {
   };
   let mockLifecycleService: {
     getAgentLifecycleState: ReturnType<typeof vi.fn>;
+    registerSpawnedAgent: ReturnType<typeof vi.fn>;
+  };
+  let mockEventsService: {
+    subscribe: ReturnType<typeof vi.fn>;
+    getInitialSnapshot: ReturnType<typeof vi.fn>;
+    createHeartbeat: ReturnType<typeof vi.fn>;
   };
 
   beforeEach(() => {
@@ -38,13 +45,30 @@ describe("AgentsController - Killswitch Endpoints", () => {
 
     mockLifecycleService = {
       getAgentLifecycleState: vi.fn(),
+      registerSpawnedAgent: vi.fn(),
+    };
+
+    mockEventsService = {
+      subscribe: vi.fn().mockReturnValue(() => {}),
+      getInitialSnapshot: vi.fn().mockResolvedValue({
+        type: "stream.snapshot",
+        timestamp: new Date().toISOString(),
+        agents: 0,
+        tasks: 0,
+      }),
+      createHeartbeat: vi.fn().mockReturnValue({
+        type: "task.processing",
+        timestamp: new Date().toISOString(),
+        data: { heartbeat: true },
+      }),
     };
 
     controller = new AgentsController(
       mockQueueService as unknown as QueueService,
       mockSpawnerService as unknown as AgentSpawnerService,
       mockLifecycleService as unknown as AgentLifecycleService,
-      mockKillswitchService as unknown as KillswitchService
+      mockKillswitchService as unknown as KillswitchService,
+      mockEventsService as unknown as AgentEventsService
     );
   });
 
diff --git a/apps/orchestrator/src/api/agents/agents.controller.spec.ts b/apps/orchestrator/src/api/agents/agents.controller.spec.ts
index c63f8b6..5cf6b42 100644
--- a/apps/orchestrator/src/api/agents/agents.controller.spec.ts
+++ b/apps/orchestrator/src/api/agents/agents.controller.spec.ts
@@ -3,6 +3,7 @@ import { QueueService } from "../../queue/queue.service";
 import { AgentSpawnerService } from "../../spawner/agent-spawner.service";
 import { AgentLifecycleService } from "../../spawner/agent-lifecycle.service";
 import { KillswitchService } from "../../killswitch/killswitch.service";
+import { AgentEventsService } from "./agent-events.service";
 import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
 
 describe("AgentsController", () => {
@@ -17,11 +18,17 @@ describe("AgentsController", () => {
   };
   let lifecycleService: {
     getAgentLifecycleState: ReturnType<typeof vi.fn>;
+    registerSpawnedAgent: ReturnType<typeof vi.fn>;
   };
   let killswitchService: {
     killAgent: ReturnType<typeof vi.fn>;
     killAllAgents: ReturnType<typeof vi.fn>;
   };
+  let eventsService: {
+    subscribe: ReturnType<typeof vi.fn>;
+    getInitialSnapshot: ReturnType<typeof vi.fn>;
+    createHeartbeat: ReturnType<typeof vi.fn>;
+  };
 
   beforeEach(() => {
     // Create mock services
@@ -37,6 +44,7 @@ describe("AgentsController", () => {
 
     lifecycleService = {
       getAgentLifecycleState: vi.fn(),
+      registerSpawnedAgent: vi.fn().mockResolvedValue(undefined),
     };
 
     killswitchService = {
@@ -44,12 +52,28 @@ describe("AgentsController", () => {
       killAllAgents: vi.fn(),
     };
 
+    eventsService = {
+      subscribe: vi.fn().mockReturnValue(() => {}),
+      getInitialSnapshot: vi.fn().mockResolvedValue({
+        type: "stream.snapshot",
+        timestamp: new Date().toISOString(),
+        agents: 0,
+        tasks: 0,
+      }),
+      createHeartbeat: vi.fn().mockReturnValue({
+        type: "task.processing",
+        timestamp: new Date().toISOString(),
+        data: { heartbeat: true },
+      }),
+    };
+
     // Create controller with mocked services
     controller = new AgentsController(
       queueService as unknown as QueueService,
       spawnerService as unknown as AgentSpawnerService,
       lifecycleService as unknown as AgentLifecycleService,
-      killswitchService as unknown as KillswitchService
+      killswitchService as unknown as KillswitchService,
+      eventsService as unknown as AgentEventsService
     );
   });
 
@@ -195,6 +219,10 @@ describe("AgentsController", () => {
       expect(queueService.addTask).toHaveBeenCalledWith(validRequest.taskId, validRequest.context, {
         priority: 5,
       });
+      expect(lifecycleService.registerSpawnedAgent).toHaveBeenCalledWith(
+        agentId,
+        validRequest.taskId
+      );
       expect(result).toEqual({
         agentId,
         status: "spawning",
diff --git a/apps/orchestrator/src/api/agents/agents.controller.ts b/apps/orchestrator/src/api/agents/agents.controller.ts
index 1d54ea9..e0ac25f 100644
--- a/apps/orchestrator/src/api/agents/agents.controller.ts
+++ b/apps/orchestrator/src/api/agents/agents.controller.ts
@@ -11,8 +11,11 @@ import {
   HttpCode,
   UseGuards,
   ParseUUIDPipe,
+  Sse,
+  MessageEvent,
 } from "@nestjs/common";
 import { Throttle } from "@nestjs/throttler";
+import { Observable } from "rxjs";
 import { QueueService } from "../../queue/queue.service";
 import { AgentSpawnerService } from "../../spawner/agent-spawner.service";
 import { AgentLifecycleService } from "../../spawner/agent-lifecycle.service";
@@ -20,6 +23,7 @@ import { KillswitchService } from "../../killswitch/killswitch.service";
 import { SpawnAgentDto, SpawnAgentResponseDto } from "./dto/spawn-agent.dto";
 import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
 import { OrchestratorThrottlerGuard } from "../../common/guards/throttler.guard";
+import { AgentEventsService } from "./agent-events.service";
 
 /**
  * Controller for agent management endpoints
@@ -41,7 +45,8 @@ export class AgentsController {
     private readonly queueService: QueueService,
     private readonly spawnerService: AgentSpawnerService,
     private readonly lifecycleService: AgentLifecycleService,
-    private readonly killswitchService: KillswitchService
+    private readonly killswitchService: KillswitchService,
+    private readonly eventsService: AgentEventsService
   ) {}
 
   /**
@@ -67,6 +72,9 @@ export class AgentsController {
         context: dto.context,
       });
 
+      // Persist initial lifecycle state in Valkey.
+      await this.lifecycleService.registerSpawnedAgent(spawnResponse.agentId, dto.taskId);
+
       // Queue task in Valkey
       await this.queueService.addTask(dto.taskId, dto.context, {
         priority: 5, // Default priority
@@ -85,6 +93,41 @@ export class AgentsController {
     }
   }
 
+  /**
+   * Stream orchestrator events as server-sent events (SSE)
+   */
+  @Sse("events")
+  @Throttle({ status: { limit: 200, ttl: 60000 } })
+  streamEvents(): Observable<MessageEvent> {
+    return new Observable<MessageEvent>((subscriber) => {
+      let isClosed = false;
+
+      const unsubscribe = this.eventsService.subscribe((event) => {
+        if (!isClosed) {
+          subscriber.next({ data: event });
+        }
+      });
+
+      void this.eventsService.getInitialSnapshot().then((snapshot) => {
+        if (!isClosed) {
+          subscriber.next({ data: snapshot });
+        }
+      });
+
+      const heartbeat = setInterval(() => {
+        if (!isClosed) {
+          subscriber.next({ data: this.eventsService.createHeartbeat() });
+        }
+      }, 15000);
+
+      return () => {
+        isClosed = true;
+        clearInterval(heartbeat);
+        unsubscribe();
+      };
+    });
+  }
+
   /**
    * List all agents
    * @returns Array of all agent sessions with their status
diff --git a/apps/orchestrator/src/api/agents/agents.module.ts b/apps/orchestrator/src/api/agents/agents.module.ts
index c6e071a..029c3c2 100644
--- a/apps/orchestrator/src/api/agents/agents.module.ts
+++ b/apps/orchestrator/src/api/agents/agents.module.ts
@@ -5,10 +5,11 @@ import { SpawnerModule } from "../../spawner/spawner.module";
 import { KillswitchModule } from "../../killswitch/killswitch.module";
 import { ValkeyModule } from "../../valkey/valkey.module";
 import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+import { AgentEventsService } from "./agent-events.service";
 
 @Module({
   imports: [QueueModule, SpawnerModule, KillswitchModule, ValkeyModule],
   controllers: [AgentsController],
-  providers: [OrchestratorApiKeyGuard],
+  providers: [OrchestratorApiKeyGuard, AgentEventsService],
 })
 export class AgentsModule {}
diff --git a/apps/orchestrator/src/api/queue/queue-api.module.ts b/apps/orchestrator/src/api/queue/queue-api.module.ts
new file mode 100644
index 0000000..89e3f10
--- /dev/null
+++ b/apps/orchestrator/src/api/queue/queue-api.module.ts
@@ -0,0 +1,11 @@
+import { Module } from "@nestjs/common";
+import { QueueController } from "./queue.controller";
+import { QueueModule } from "../../queue/queue.module";
+import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+
+@Module({
+  imports: [QueueModule],
+  controllers: [QueueController],
+  providers: [OrchestratorApiKeyGuard],
+})
+export class QueueApiModule {}
diff --git a/apps/orchestrator/src/api/queue/queue.controller.spec.ts b/apps/orchestrator/src/api/queue/queue.controller.spec.ts
new file mode 100644
index 0000000..d1a8fc5
--- /dev/null
+++ b/apps/orchestrator/src/api/queue/queue.controller.spec.ts
@@ -0,0 +1,65 @@
+import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
+import { QueueController } from "./queue.controller";
+import { QueueService } from "../../queue/queue.service";
+
+describe("QueueController", () => {
+  let controller: QueueController;
+  let queueService: {
+    getStats: ReturnType<typeof vi.fn>;
+    pause: ReturnType<typeof vi.fn>;
+    resume: ReturnType<typeof vi.fn>;
+  };
+
+  beforeEach(() => {
+    queueService = {
+      getStats: vi.fn(),
+      pause: vi.fn(),
+      resume: vi.fn(),
+    };
+
+    controller = new QueueController(queueService as unknown as QueueService);
+  });
+
+  afterEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("should return queue stats", async () => {
+    queueService.getStats.mockResolvedValue({
+      pending: 5,
+      active: 1,
+      completed: 10,
+      failed: 2,
+      delayed: 0,
+    });
+
+    const result = await controller.getStats();
+
+    expect(queueService.getStats).toHaveBeenCalledOnce();
+    expect(result).toEqual({
+      pending: 5,
+      active: 1,
+      completed: 10,
+      failed: 2,
+      delayed: 0,
+    });
+  });
+
+  it("should pause queue processing", async () => {
+    queueService.pause.mockResolvedValue(undefined);
+
+    const result = await controller.pause();
+
+    expect(queueService.pause).toHaveBeenCalledOnce();
+    expect(result).toEqual({ message: "Queue processing paused" });
+  });
+
+  it("should resume queue processing", async () => {
+    queueService.resume.mockResolvedValue(undefined);
+
+    const result = await controller.resume();
+
+    expect(queueService.resume).toHaveBeenCalledOnce();
+    expect(result).toEqual({ message: "Queue processing resumed" });
+  });
+});
diff --git a/apps/orchestrator/src/api/queue/queue.controller.ts b/apps/orchestrator/src/api/queue/queue.controller.ts
new file mode 100644
index 0000000..85cc986
--- /dev/null
+++ b/apps/orchestrator/src/api/queue/queue.controller.ts
@@ -0,0 +1,39 @@
+import { Controller, Get, HttpCode, Post, UseGuards } from "@nestjs/common";
+import { Throttle } from "@nestjs/throttler";
+import { QueueService } from "../../queue/queue.service";
+import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+import { OrchestratorThrottlerGuard } from "../../common/guards/throttler.guard";
+
+@Controller("queue")
+@UseGuards(OrchestratorApiKeyGuard, OrchestratorThrottlerGuard)
+export class QueueController {
+  constructor(private readonly queueService: QueueService) {}
+
+  @Get("stats")
+  @Throttle({ status: { limit: 200, ttl: 60000 } })
+  async getStats(): Promise<{
+    pending: number;
+    active: number;
+    completed: number;
+    failed: number;
+    delayed: number;
+  }> {
+    return this.queueService.getStats();
+  }
+
+  @Post("pause")
+  @Throttle({ strict: { limit: 10, ttl: 60000 } })
+  @HttpCode(200)
+  async pause(): Promise<{ message: string }> {
+    await this.queueService.pause();
+    return { message: "Queue processing paused" };
+  }
+
+  @Post("resume")
+  @Throttle({ strict: { limit: 10, ttl: 60000 } })
+  @HttpCode(200)
+  async resume(): Promise<{ message: string }> {
+    await this.queueService.resume();
+    return { message: "Queue processing resumed" };
+  }
+}
diff --git a/apps/orchestrator/src/app.module.ts b/apps/orchestrator/src/app.module.ts
index bb84567..d5512dd 100644
--- a/apps/orchestrator/src/app.module.ts
+++ b/apps/orchestrator/src/app.module.ts
@@ -4,6 +4,7 @@ import { BullModule } from "@nestjs/bullmq";
 import { ThrottlerModule } from "@nestjs/throttler";
 import { HealthModule } from "./api/health/health.module";
 import { AgentsModule } from "./api/agents/agents.module";
+import { QueueApiModule } from "./api/queue/queue-api.module";
 import { CoordinatorModule } from "./coordinator/coordinator.module";
 import { BudgetModule } from "./budget/budget.module";
 import { CIModule } from "./ci";
@@ -46,6 +47,7 @@ import { orchestratorConfig } from "./config/orchestrator.config";
     ]),
     HealthModule,
     AgentsModule,
+    QueueApiModule,
     CoordinatorModule,
     BudgetModule,
     CIModule,
diff --git a/apps/orchestrator/src/config/orchestrator.config.spec.ts b/apps/orchestrator/src/config/orchestrator.config.spec.ts
index 5e9b6b8..da46d1d 100644
--- a/apps/orchestrator/src/config/orchestrator.config.spec.ts
+++ b/apps/orchestrator/src/config/orchestrator.config.spec.ts
@@ -157,12 +157,12 @@ describe("orchestratorConfig", () => {
   });
 
   describe("spawner config", () => {
-    it("should use default maxConcurrentAgents of 20 when not set", () => {
+    it("should use default maxConcurrentAgents of 2 when not set", () => {
       delete process.env.MAX_CONCURRENT_AGENTS;
 
       const config = orchestratorConfig();
 
-      expect(config.spawner.maxConcurrentAgents).toBe(20);
+      expect(config.spawner.maxConcurrentAgents).toBe(2);
     });
 
     it("should use provided maxConcurrentAgents when MAX_CONCURRENT_AGENTS is set", () => {
diff --git a/apps/orchestrator/src/config/orchestrator.config.ts b/apps/orchestrator/src/config/orchestrator.config.ts
index 42af972..116553b 100644
--- a/apps/orchestrator/src/config/orchestrator.config.ts
+++ b/apps/orchestrator/src/config/orchestrator.config.ts
@@ -27,7 +27,7 @@ export const orchestratorConfig = registerAs("orchestrator", () => ({
   sandbox: {
     enabled: process.env.SANDBOX_ENABLED !== "false",
     defaultImage: process.env.SANDBOX_DEFAULT_IMAGE ?? "node:20-alpine",
-    defaultMemoryMB: parseInt(process.env.SANDBOX_DEFAULT_MEMORY_MB ?? "512", 10),
+    defaultMemoryMB: parseInt(process.env.SANDBOX_DEFAULT_MEMORY_MB ?? "256", 10),
     defaultCpuLimit: parseFloat(process.env.SANDBOX_DEFAULT_CPU_LIMIT ?? "1.0"),
     networkMode: process.env.SANDBOX_NETWORK_MODE ?? "none",
   },
@@ -41,9 +41,15 @@ export const orchestratorConfig = registerAs("orchestrator", () => ({
     enabled: process.env.YOLO_MODE === "true",
   },
   spawner: {
-    maxConcurrentAgents: parseInt(process.env.MAX_CONCURRENT_AGENTS ?? "20", 10),
+    maxConcurrentAgents: parseInt(process.env.MAX_CONCURRENT_AGENTS ?? "2", 10),
+    sessionCleanupDelayMs: parseInt(process.env.SESSION_CLEANUP_DELAY_MS ?? "30000", 10),
   },
   queue: {
+    name: process.env.ORCHESTRATOR_QUEUE_NAME ?? "orchestrator-tasks",
+    maxRetries: parseInt(process.env.ORCHESTRATOR_QUEUE_MAX_RETRIES ?? "3", 10),
+    baseDelay: parseInt(process.env.ORCHESTRATOR_QUEUE_BASE_DELAY_MS ?? "1000", 10),
+    maxDelay: parseInt(process.env.ORCHESTRATOR_QUEUE_MAX_DELAY_MS ?? "60000", 10),
+    concurrency: parseInt(process.env.ORCHESTRATOR_QUEUE_CONCURRENCY ?? "1", 10),
     completedRetentionCount: parseInt(process.env.QUEUE_COMPLETED_RETENTION_COUNT ?? "100", 10),
     completedRetentionAgeSeconds: parseInt(
       process.env.QUEUE_COMPLETED_RETENTION_AGE_S ?? "3600",
diff --git a/apps/orchestrator/src/queue/queue.module.ts b/apps/orchestrator/src/queue/queue.module.ts
index 95dc52c..3a0132e 100644
--- a/apps/orchestrator/src/queue/queue.module.ts
+++ b/apps/orchestrator/src/queue/queue.module.ts
@@ -2,9 +2,10 @@ import { Module } from "@nestjs/common";
 import { ConfigModule } from "@nestjs/config";
 import { QueueService } from "./queue.service";
 import { ValkeyModule } from "../valkey/valkey.module";
+import { SpawnerModule } from "../spawner/spawner.module";
 
 @Module({
-  imports: [ConfigModule, ValkeyModule],
+  imports: [ConfigModule, ValkeyModule, SpawnerModule],
   providers: [QueueService],
   exports: [QueueService],
 })
diff --git a/apps/orchestrator/src/queue/queue.service.spec.ts b/apps/orchestrator/src/queue/queue.service.spec.ts
index 8174cae..69e1582 100644
--- a/apps/orchestrator/src/queue/queue.service.spec.ts
+++ b/apps/orchestrator/src/queue/queue.service.spec.ts
@@ -991,12 +991,17 @@ describe("QueueService", () => {
         success: true,
         metadata: { attempt: 1 },
       });
-      expect(mockValkeyService.updateTaskStatus).toHaveBeenCalledWith("task-123", "executing");
+      expect(mockValkeyService.updateTaskStatus).toHaveBeenCalledWith(
+        "task-123",
+        "executing",
+        undefined
+      );
       expect(mockValkeyService.publishEvent).toHaveBeenCalledWith({
-        type: "task.processing",
+        type: "task.executing",
         timestamp: expect.any(String),
         taskId: "task-123",
-        data: { attempt: 1 },
+        agentId: undefined,
+        data: { attempt: 1, dispatchedByQueue: true },
       });
     });
 
diff --git a/apps/orchestrator/src/queue/queue.service.ts b/apps/orchestrator/src/queue/queue.service.ts
index 4bfc741..50f0148 100644
--- a/apps/orchestrator/src/queue/queue.service.ts
+++ b/apps/orchestrator/src/queue/queue.service.ts
@@ -1,7 +1,9 @@
-import { Injectable, OnModuleDestroy, OnModuleInit } from "@nestjs/common";
+import { Injectable, OnModuleDestroy, OnModuleInit, Optional, Logger } from "@nestjs/common";
 import { ConfigService } from "@nestjs/config";
 import { Queue, Worker, Job } from "bullmq";
 import { ValkeyService } from "../valkey/valkey.service";
+import { AgentSpawnerService } from "../spawner/agent-spawner.service";
+import { AgentLifecycleService } from "../spawner/agent-lifecycle.service";
 import type { TaskContext } from "../valkey/types";
 import type {
   QueuedTask,
@@ -16,6 +18,7 @@ import type {
  */
 @Injectable()
 export class QueueService implements OnModuleInit, OnModuleDestroy {
+  private readonly logger = new Logger(QueueService.name);
   private queue!: Queue<QueuedTask>;
   private worker!: Worker<QueuedTask, TaskProcessingResult>;
   private readonly queueName: string;
@@ -23,7 +26,9 @@ export class QueueService implements OnModuleInit, OnModuleDestroy {
 
   constructor(
     private readonly valkeyService: ValkeyService,
-    private readonly configService: ConfigService
+    private readonly configService: ConfigService,
+    @Optional() private readonly spawnerService?: AgentSpawnerService,
+    @Optional() private readonly lifecycleService?: AgentLifecycleService
   ) {
     this.queueName = this.configService.get<string>(
       "orchestrator.queue.name",
@@ -132,6 +137,16 @@ export class QueueService implements OnModuleInit, OnModuleDestroy {
       context,
     };
 
+    // Ensure task state exists before queue lifecycle updates.
+    const getTaskState = (this.valkeyService as Partial<ValkeyService>).getTaskState;
+    const createTask = (this.valkeyService as Partial<ValkeyService>).createTask;
+    if (typeof getTaskState === "function" && typeof createTask === "function") {
+      const existingTask = await getTaskState.call(this.valkeyService, taskId);
+      if (!existingTask) {
+        await createTask.call(this.valkeyService, taskId, context);
+      }
+    }
+
     // Add to BullMQ queue
     await this.queue.add(taskId, queuedTask, {
       priority: 10 - priority + 1, // BullMQ: lower number = higher priority, so invert
@@ -214,23 +229,35 @@ export class QueueService implements OnModuleInit, OnModuleDestroy {
     const { taskId } = job.data;
 
     try {
+      const session = this.spawnerService?.findAgentSessionByTaskId(taskId);
+      const agentId = session?.agentId;
+
+      if (agentId) {
+        if (this.lifecycleService) {
+          await this.lifecycleService.transitionToRunning(agentId);
+        }
+        this.spawnerService?.setSessionState(agentId, "running");
+      }
+
       // Update task state to executing
-      await this.valkeyService.updateTaskStatus(taskId, "executing");
+      await this.valkeyService.updateTaskStatus(taskId, "executing", agentId);
 
       // Publish event
       await this.valkeyService.publishEvent({
-        type: "task.processing",
+        type: "task.executing",
         timestamp: new Date().toISOString(),
         taskId,
-        data: { attempt: job.attemptsMade + 1 },
+        agentId,
+        data: {
+          attempt: job.attemptsMade + 1,
+          dispatchedByQueue: true,
+        },
       });
-
-      // Task processing will be handled by agent spawner
-      // For now, just mark as processing
       return {
         success: true,
         metadata: {
           attempt: job.attemptsMade + 1,
+          ...(agentId && { agentId }),
         },
       };
     } catch (error) {
@@ -270,6 +297,14 @@ export class QueueService implements OnModuleInit, OnModuleDestroy {
    * Handle task failure
    */
   private async handleTaskFailure(taskId: string, error: Error): Promise<void> {
+    const session = this.spawnerService?.findAgentSessionByTaskId(taskId);
+    if (session) {
+      this.spawnerService?.setSessionState(session.agentId, "failed", error.message, new Date());
+      if (this.lifecycleService) {
+        await this.lifecycleService.transitionToFailed(session.agentId, error.message);
+      }
+    }
+
     await this.valkeyService.updateTaskStatus(taskId, "failed", undefined, error.message);
 
     await this.valkeyService.publishEvent({
@@ -284,12 +319,25 @@ export class QueueService implements OnModuleInit, OnModuleDestroy {
    * Handle task completion
    */
   private async handleTaskCompletion(taskId: string): Promise<void> {
+    const session = this.spawnerService?.findAgentSessionByTaskId(taskId);
+    if (session) {
+      this.spawnerService?.setSessionState(session.agentId, "completed", undefined, new Date());
+      if (this.lifecycleService) {
+        await this.lifecycleService.transitionToCompleted(session.agentId);
+      }
+    } else {
+      this.logger.warn(
+        `Queue completed task ${taskId} but no session was found; using queue-only completion state`
+      );
+    }
+
     await this.valkeyService.updateTaskStatus(taskId, "completed");
 
     await this.valkeyService.publishEvent({
       type: "task.completed",
       timestamp: new Date().toISOString(),
       taskId,
+      ...(session && { agentId: session.agentId }),
     });
   }
 }
diff --git a/apps/orchestrator/src/spawner/agent-lifecycle.service.ts b/apps/orchestrator/src/spawner/agent-lifecycle.service.ts
index 942cb08..cc9b57c 100644
--- a/apps/orchestrator/src/spawner/agent-lifecycle.service.ts
+++ b/apps/orchestrator/src/spawner/agent-lifecycle.service.ts
@@ -37,6 +37,24 @@ export class AgentLifecycleService {
     this.logger.log("AgentLifecycleService initialized");
   }
 
+  /**
+   * Register a newly spawned agent in persistent state and emit spawned event.
+   */
+  async registerSpawnedAgent(agentId: string, taskId: string): Promise<AgentState> {
+    await this.valkeyService.createAgent(agentId, taskId);
+    const createdState = await this.getAgentState(agentId);
+
+    const event: AgentEvent = {
+      type: "agent.spawned",
+      agentId,
+      taskId,
+      timestamp: new Date().toISOString(),
+    };
+    await this.valkeyService.publishEvent(event);
+
+    return createdState;
+  }
+
   /**
    * Acquire a per-agent mutex to serialize state transitions.
    * Uses promise chaining: each caller chains onto the previous lock,
diff --git a/apps/orchestrator/src/spawner/agent-spawner.service.ts b/apps/orchestrator/src/spawner/agent-spawner.service.ts
index e3ce4ba..5279f46 100644
--- a/apps/orchestrator/src/spawner/agent-spawner.service.ts
+++ b/apps/orchestrator/src/spawner/agent-spawner.service.ts
@@ -116,6 +116,33 @@ export class AgentSpawnerService implements OnModuleDestroy {
     return this.sessions.get(agentId);
   }
 
+  /**
+   * Find an active session by task ID.
+   */
+  findAgentSessionByTaskId(taskId: string): AgentSession | undefined {
+    return Array.from(this.sessions.values()).find((session) => session.taskId === taskId);
+  }
+
+  /**
+   * Update in-memory session state for visibility in list/status endpoints.
+   */
+  setSessionState(
+    agentId: string,
+    state: AgentSession["state"],
+    error?: string,
+    completedAt?: Date
+  ): void {
+    const session = this.sessions.get(agentId);
+    if (!session) return;
+
+    session.state = state;
+    session.error = error;
+    if (completedAt) {
+      session.completedAt = completedAt;
+    }
+    this.sessions.set(agentId, session);
+  }
+
   /**
    * List all agent sessions
    * @returns Array of all agent sessions
diff --git a/apps/web/src/app/api/orchestrator/events/route.ts b/apps/web/src/app/api/orchestrator/events/route.ts
new file mode 100644
index 0000000..18d0e02
--- /dev/null
+++ b/apps/web/src/app/api/orchestrator/events/route.ts
@@ -0,0 +1,50 @@
+import { NextResponse } from "next/server";
+
+const DEFAULT_ORCHESTRATOR_URL = "http://localhost:3001";
+
+function getOrchestratorUrl(): string {
+  return (
+    process.env.ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_API_URL ??
+    DEFAULT_ORCHESTRATOR_URL
+  );
+}
+
+export async function GET(): Promise<Response> {
+  const orchestratorApiKey = process.env.ORCHESTRATOR_API_KEY;
+  if (!orchestratorApiKey) {
+    return NextResponse.json(
+      { error: "ORCHESTRATOR_API_KEY is not configured on the web server." },
+      { status: 503 }
+    );
+  }
+
+  try {
+    const upstream = await fetch(`${getOrchestratorUrl()}/agents/events`, {
+      method: "GET",
+      headers: {
+        "X-API-Key": orchestratorApiKey,
+      },
+      cache: "no-store",
+    });
+
+    if (!upstream.ok || !upstream.body) {
+      const text = await upstream.text();
+      return new NextResponse(text || "Failed to connect to orchestrator events stream", {
+        status: upstream.status || 502,
+      });
+    }
+
+    return new Response(upstream.body, {
+      status: 200,
+      headers: {
+        "Content-Type": "text/event-stream",
+        "Cache-Control": "no-cache, no-transform",
+        Connection: "keep-alive",
+      },
+    });
+  } catch {
+    return NextResponse.json({ error: "Unable to reach orchestrator." }, { status: 502 });
+  }
+}
diff --git a/apps/web/src/app/api/orchestrator/queue/pause/route.ts b/apps/web/src/app/api/orchestrator/queue/pause/route.ts
new file mode 100644
index 0000000..1c27cfd
--- /dev/null
+++ b/apps/web/src/app/api/orchestrator/queue/pause/route.ts
@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server";
+
+const DEFAULT_ORCHESTRATOR_URL = "http://localhost:3001";
+
+function getOrchestratorUrl(): string {
+  return (
+    process.env.ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_API_URL ??
+    DEFAULT_ORCHESTRATOR_URL
+  );
+}
+
+export async function POST(): Promise<NextResponse> {
+  const orchestratorApiKey = process.env.ORCHESTRATOR_API_KEY;
+  if (!orchestratorApiKey) {
+    return NextResponse.json(
+      { error: "ORCHESTRATOR_API_KEY is not configured on the web server." },
+      { status: 503 }
+    );
+  }
+
+  try {
+    const response = await fetch(`${getOrchestratorUrl()}/queue/pause`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        "X-API-Key": orchestratorApiKey,
+      },
+      cache: "no-store",
+    });
+
+    const text = await response.text();
+    return new NextResponse(text, {
+      status: response.status,
+      headers: {
+        "Content-Type": response.headers.get("Content-Type") ?? "application/json",
+      },
+    });
+  } catch {
+    return NextResponse.json({ error: "Unable to reach orchestrator." }, { status: 502 });
+  }
+}
diff --git a/apps/web/src/app/api/orchestrator/queue/resume/route.ts b/apps/web/src/app/api/orchestrator/queue/resume/route.ts
new file mode 100644
index 0000000..635ef63
--- /dev/null
+++ b/apps/web/src/app/api/orchestrator/queue/resume/route.ts
@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server";
+
+const DEFAULT_ORCHESTRATOR_URL = "http://localhost:3001";
+
+function getOrchestratorUrl(): string {
+  return (
+    process.env.ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_API_URL ??
+    DEFAULT_ORCHESTRATOR_URL
+  );
+}
+
+export async function POST(): Promise<NextResponse> {
+  const orchestratorApiKey = process.env.ORCHESTRATOR_API_KEY;
+  if (!orchestratorApiKey) {
+    return NextResponse.json(
+      { error: "ORCHESTRATOR_API_KEY is not configured on the web server." },
+      { status: 503 }
+    );
+  }
+
+  try {
+    const response = await fetch(`${getOrchestratorUrl()}/queue/resume`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        "X-API-Key": orchestratorApiKey,
+      },
+      cache: "no-store",
+    });
+
+    const text = await response.text();
+    return new NextResponse(text, {
+      status: response.status,
+      headers: {
+        "Content-Type": response.headers.get("Content-Type") ?? "application/json",
+      },
+    });
+  } catch {
+    return NextResponse.json({ error: "Unable to reach orchestrator." }, { status: 502 });
+  }
+}
diff --git a/apps/web/src/app/api/orchestrator/queue/stats/route.ts b/apps/web/src/app/api/orchestrator/queue/stats/route.ts
new file mode 100644
index 0000000..d089094
--- /dev/null
+++ b/apps/web/src/app/api/orchestrator/queue/stats/route.ts
@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server";
+
+const DEFAULT_ORCHESTRATOR_URL = "http://localhost:3001";
+
+function getOrchestratorUrl(): string {
+  return (
+    process.env.ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_ORCHESTRATOR_URL ??
+    process.env.NEXT_PUBLIC_API_URL ??
+    DEFAULT_ORCHESTRATOR_URL
+  );
+}
+
+export async function GET(): Promise<NextResponse> {
+  const orchestratorApiKey = process.env.ORCHESTRATOR_API_KEY;
+  if (!orchestratorApiKey) {
+    return NextResponse.json(
+      { error: "ORCHESTRATOR_API_KEY is not configured on the web server." },
+      { status: 503 }
+    );
+  }
+
+  try {
+    const response = await fetch(`${getOrchestratorUrl()}/queue/stats`, {
+      method: "GET",
+      headers: {
+        "Content-Type": "application/json",
+        "X-API-Key": orchestratorApiKey,
+      },
+      cache: "no-store",
+    });
+
+    const text = await response.text();
+    return new NextResponse(text, {
+      status: response.status,
+      headers: {
+        "Content-Type": response.headers.get("Content-Type") ?? "application/json",
+      },
+    });
+  } catch {
+    return NextResponse.json({ error: "Unable to reach orchestrator." }, { status: 502 });
+  }
+}
diff --git a/apps/web/src/components/widgets/AgentStatusWidget.tsx b/apps/web/src/components/widgets/AgentStatusWidget.tsx
index 17148a7..adb6a03 100644
--- a/apps/web/src/components/widgets/AgentStatusWidget.tsx
+++ b/apps/web/src/components/widgets/AgentStatusWidget.tsx
@@ -2,7 +2,7 @@
  * Agent Status Widget - shows running agents
  */
 
-import { useState, useEffect } from "react";
+import { useState, useEffect, useCallback } from "react";
 import { Bot, Activity, AlertCircle, CheckCircle, Clock } from "lucide-react";
 import type { WidgetProps } from "@mosaic/shared";
 
@@ -21,46 +21,57 @@ export function AgentStatusWidget({ id: _id, config: _config }: WidgetProps): Re
   const [isLoading, setIsLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
 
+  const fetchAgents = useCallback(async (): Promise<void> => {
+    setIsLoading(true);
+    setError(null);
+
+    try {
+      const response = await fetch("/api/orchestrator/agents", {
+        headers: {
+          "Content-Type": "application/json",
+        },
+      });
+
+      if (!response.ok) {
+        throw new Error(`Failed to fetch agents: ${response.statusText}`);
+      }
+
+      const data = (await response.json()) as Agent[];
+      setAgents(data);
+    } catch (err: unknown) {
+      const errorMessage = err instanceof Error ? err.message : "Unknown error";
+      console.error("Failed to fetch agents:", errorMessage);
+      setError(errorMessage);
+      setAgents([]); // Clear agents on error
+    } finally {
+      setIsLoading(false);
+    }
+  }, []);
   // Fetch agents from orchestrator API
   useEffect(() => {
-    const fetchAgents = async (): Promise<void> => {
-      setIsLoading(true);
-      setError(null);
-
-      try {
-        const response = await fetch("/api/orchestrator/agents", {
-          headers: {
-            "Content-Type": "application/json",
-          },
-        });
-
-        if (!response.ok) {
-          throw new Error(`Failed to fetch agents: ${response.statusText}`);
-        }
-
-        const data = (await response.json()) as Agent[];
-        setAgents(data);
-      } catch (err: unknown) {
-        const errorMessage = err instanceof Error ? err.message : "Unknown error";
-        console.error("Failed to fetch agents:", errorMessage);
-        setError(errorMessage);
-        setAgents([]); // Clear agents on error
-      } finally {
-        setIsLoading(false);
-      }
-    };
-
     void fetchAgents();
 
     // Refresh every 30 seconds
     const interval = setInterval(() => {
       void fetchAgents();
-    }, 30000);
+    }, 20000);
+
+    const eventSource =
+      typeof EventSource !== "undefined" ? new EventSource("/api/orchestrator/events") : null;
+    if (eventSource) {
+      eventSource.onmessage = (): void => {
+        void fetchAgents();
+      };
+      eventSource.onerror = (): void => {
+        // polling remains fallback
+      };
+    }
 
     return (): void => {
       clearInterval(interval);
+      eventSource?.close();
     };
-  }, []);
+  }, [fetchAgents]);
 
   const getStatusIcon = (status: string): React.JSX.Element => {
     const statusLower = status.toLowerCase();
diff --git a/apps/web/src/components/widgets/TaskProgressWidget.tsx b/apps/web/src/components/widgets/TaskProgressWidget.tsx
index 48befc9..63f8b1e 100644
--- a/apps/web/src/components/widgets/TaskProgressWidget.tsx
+++ b/apps/web/src/components/widgets/TaskProgressWidget.tsx
@@ -5,8 +5,8 @@
  * including status, elapsed time, and work item details.
  */
 
-import { useState, useEffect } from "react";
-import { Activity, CheckCircle, XCircle, Clock, Loader2 } from "lucide-react";
+import { useState, useEffect, useCallback } from "react";
+import { Activity, CheckCircle, XCircle, Clock, Loader2, Pause, Play } from "lucide-react";
 import type { WidgetProps } from "@mosaic/shared";
 
 interface AgentTask {
@@ -19,6 +19,14 @@ interface AgentTask {
   error?: string;
 }
 
+interface QueueStats {
+  pending: number;
+  active: number;
+  completed: number;
+  failed: number;
+  delayed: number;
+}
+
 function getElapsedTime(spawnedAt: string, completedAt?: string): string {
   const start = new Date(spawnedAt).getTime();
   const end = completedAt ? new Date(completedAt).getTime() : Date.now();
@@ -94,34 +102,84 @@ function getAgentTypeLabel(agentType: string): string {
 
 export function TaskProgressWidget({ id: _id, config: _config }: WidgetProps): React.JSX.Element {
   const [tasks, setTasks] = useState<AgentTask[]>([]);
+  const [queueStats, setQueueStats] = useState<QueueStats | null>(null);
   const [isLoading, setIsLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
+  const [isQueuePaused, setIsQueuePaused] = useState(false);
+  const [isActionPending, setIsActionPending] = useState(false);
+
+  const fetchTasks = useCallback(async (): Promise<void> => {
+    try {
+      const res = await fetch("/api/orchestrator/agents");
+      if (!res.ok) throw new Error(`HTTP ${String(res.status)}`);
+      const data = (await res.json()) as AgentTask[];
+      setTasks(data);
+      setError(null);
+      setIsLoading(false);
+    } catch {
+      setError("Unable to reach orchestrator");
+      setIsLoading(false);
+    }
+  }, []);
+
+  const fetchQueueStats = useCallback(async (): Promise<void> => {
+    try {
+      const res = await fetch("/api/orchestrator/queue/stats");
+      if (!res.ok) throw new Error(`HTTP ${String(res.status)}`);
+      const data = (await res.json()) as QueueStats;
+      setQueueStats(data);
+      // Heuristic: active=0 with pending>0 for sustained windows usually means paused.
+      setIsQueuePaused(data.active === 0 && data.pending > 0);
+    } catch {
+      // Keep widget functional even if queue controls are temporarily unavailable.
+    }
+  }, []);
+
+  const setQueueState = useCallback(
+    async (action: "pause" | "resume"): Promise<void> => {
+      setIsActionPending(true);
+      try {
+        const res = await fetch(`/api/orchestrator/queue/${action}`, {
+          method: "POST",
+        });
+        if (!res.ok) throw new Error(`HTTP ${String(res.status)}`);
+        setIsQueuePaused(action === "pause");
+        await fetchQueueStats();
+      } catch {
+        setError("Unable to control queue state");
+      } finally {
+        setIsActionPending(false);
+      }
+    },
+    [fetchQueueStats]
+  );
 
   useEffect(() => {
-    const fetchTasks = (): void => {
-      fetch("/api/orchestrator/agents")
-        .then((res) => {
-          if (!res.ok) throw new Error(`HTTP ${String(res.status)}`);
-          return res.json() as Promise<AgentTask[]>;
-        })
-        .then((data) => {
-          setTasks(data);
-          setError(null);
-          setIsLoading(false);
-        })
-        .catch(() => {
-          setError("Unable to reach orchestrator");
-          setIsLoading(false);
-        });
-    };
+    void fetchTasks();
+    void fetchQueueStats();
 
-    fetchTasks();
-    const interval = setInterval(fetchTasks, 15000);
+    const interval = setInterval(() => {
+      void fetchTasks();
+      void fetchQueueStats();
+    }, 15000);
+
+    const eventSource =
+      typeof EventSource !== "undefined" ? new EventSource("/api/orchestrator/events") : null;
+    if (eventSource) {
+      eventSource.onmessage = (): void => {
+        void fetchTasks();
+        void fetchQueueStats();
+      };
+      eventSource.onerror = (): void => {
+        // Polling remains the resilience path.
+      };
+    }
 
     return (): void => {
       clearInterval(interval);
+      eventSource?.close();
     };
-  }, []);
+  }, [fetchTasks, fetchQueueStats]);
 
   const stats = {
     total: tasks.length,
@@ -151,6 +209,23 @@ export function TaskProgressWidget({ id: _id, config: _config }: WidgetProps): R
 
   return (
     <div className="flex flex-col h-full space-y-3">
+      <div className="flex items-center justify-between">
+        <div className="text-xs text-gray-500 dark:text-gray-400">
+          Queue: {isQueuePaused ? "Paused" : "Running"}
+        </div>
+        <button
+          type="button"
+          onClick={(): void => {
+            void setQueueState(isQueuePaused ? "resume" : "pause");
+          }}
+          disabled={isActionPending}
+          className="inline-flex items-center gap-1 rounded border border-gray-300 dark:border-gray-700 px-2 py-1 text-xs hover:bg-gray-100 dark:hover:bg-gray-800 disabled:opacity-50"
+        >
+          {isQueuePaused ? <Play className="w-3 h-3" /> : <Pause className="w-3 h-3" />}
+          {isQueuePaused ? "Resume" : "Pause"}
+        </button>
+      </div>
+
       {/* Summary stats */}
       <div className="grid grid-cols-4 gap-1 text-center text-xs">
         <div className="bg-gray-50 dark:bg-gray-800 rounded p-2">
@@ -173,6 +248,29 @@ export function TaskProgressWidget({ id: _id, config: _config }: WidgetProps): R
         </div>
       </div>
 
+      {queueStats && (
+        <div className="grid grid-cols-3 gap-1 text-center text-xs">
+          <div className="bg-gray-50 dark:bg-gray-800 rounded p-1">
+            <div className="font-semibold text-gray-700 dark:text-gray-200">
+              {queueStats.pending}
+            </div>
+            <div className="text-gray-500">Queued</div>
+          </div>
+          <div className="bg-gray-50 dark:bg-gray-800 rounded p-1">
+            <div className="font-semibold text-gray-700 dark:text-gray-200">
+              {queueStats.active}
+            </div>
+            <div className="text-gray-500">Workers</div>
+          </div>
+          <div className="bg-gray-50 dark:bg-gray-800 rounded p-1">
+            <div className="font-semibold text-gray-700 dark:text-gray-200">
+              {queueStats.failed}
+            </div>
+            <div className="text-gray-500">Failed</div>
+          </div>
+        </div>
+      )}
+
       {/* Task list */}
       <div className="flex-1 overflow-auto space-y-2">
         {tasks.length === 0 ? (
diff --git a/docs/tasks.md b/docs/tasks.md
index a316d83..2c03a4e 100644
--- a/docs/tasks.md
+++ b/docs/tasks.md
@@ -342,3 +342,26 @@
 | REV-2026-006 | done   | medium   | qa+architecture     | `MosaicTelemetryModule` imports `AuthModule`, causing telemetry module tests to fail on unrelated `ENCRYPTION_KEY` auth config requirements. Decouple telemetry module dependencies or provide test-safe module overrides.                                                                                                         | `apps/api/src/mosaic-telemetry/mosaic-telemetry.module.ts:36`, `apps/api/src/mosaic-telemetry/mosaic-telemetry.module.spec.ts:1`                                                                                                            |
 | REV-2026-007 | done   | medium   | qa                  | Frontend skip cleanup completed for scoped findings: `TasksWidget`, `CalendarWidget`, and `LinkAutocomplete` coverage now runs with deterministic assertions and no stale `it.skip` markers in those suites.                                                                                                                       | `apps/web/src/components/widgets/__tests__/TasksWidget.test.tsx:1`, `apps/web/src/components/widgets/__tests__/CalendarWidget.test.tsx:1`, `apps/web/src/components/knowledge/__tests__/LinkAutocomplete.test.tsx:1`                        |
 | REV-2026-008 | done   | low      | tooling             | Repo session bootstrap reliability issue: `scripts/agent/session-start.sh` fails due stale branch tracking ref, which can silently block required lifecycle checks. Update script to tolerate missing remote branch or self-heal branch config.                                                                                    | `scripts/agent/session-start.sh:10`, `scripts/agent/session-start.sh:16`, `scripts/agent/session-start.sh:34`                                                                                                                               |
+
+---
+
+## 2026-02-17 Orchestrator Streaming + Queue Control Follow-up
+
+**Orchestrator:** Jarvis (Codex runtime)
+**Branch:** `fix/auth-frontend-remediation`
+
+### Tasks
+
+| id          | status | description                                                                                                         | issue | repo             | branch                        | depends_on   | blocks | agent | started_at        | completed_at      | estimate | used |
+| ----------- | ------ | ------------------------------------------------------------------------------------------------------------------- | ----- | ---------------- | ----------------------------- | ------------ | ------ | ----- | ----------------- | ----------------- | -------- | ---- |
+| ORCH-FU-001 | done   | Add orchestrator SSE event stream endpoint and service fan-out (`/agents/events`) with initial snapshot + heartbeat | #411  | orchestrator,web | fix/auth-frontend-remediation | REV-2026-001 |        | orch  | 2026-02-17T15:00Z | 2026-02-17T15:18Z | 20K      | 24K  |
+| ORCH-FU-002 | done   | Add queue control API (`/queue/stats`, `/queue/pause`, `/queue/resume`) and web proxy routes                        | #411  | orchestrator,web | fix/auth-frontend-remediation | ORCH-FU-001  |        | orch  | 2026-02-17T15:18Z | 2026-02-17T15:24Z | 12K      | 15K  |
+| ORCH-FU-003 | done   | Wire `TaskProgressWidget` and `AgentStatusWidget` to live SSE updates with polling fallback                         | #411  | web              | fix/auth-frontend-remediation | ORCH-FU-001  |        | orch  | 2026-02-17T15:24Z | 2026-02-17T15:33Z | 15K      | 18K  |
+| ORCH-FU-004 | done   | Persist spawned state in lifecycle + align queue state transitions/events for spawned/non-spawned paths             | #411  | orchestrator     | fix/auth-frontend-remediation | ORCH-FU-001  |        | orch  | 2026-02-17T15:33Z | 2026-02-17T15:40Z | 15K      | 18K  |
+| ORCH-FU-005 | done   | Harden repo-local Mosaic linkage paths (`~/.config/mosaic`) and ignore orchestrator runtime artifacts               | #411  | docs,tooling     | fix/auth-frontend-remediation | ORCH-FU-004  |        | orch  | 2026-02-17T15:40Z | 2026-02-17T15:45Z | 8K       | 6K   |
+| ORCH-FU-V01 | done   | Verification: orchestrator and web targeted test suites pass after follow-up changes                                | #411  | all              | fix/auth-frontend-remediation | ORCH-FU-001  |        | orch  | 2026-02-17T15:45Z | 2026-02-17T15:48Z | 5K       | 3K   |
+
+### Verification Snapshot
+
+- `pnpm --filter @mosaic/orchestrator test -- src/api/queue/queue.controller.spec.ts src/api/agents/agents.controller.spec.ts src/api/agents/agents-killswitch.controller.spec.ts src/queue/queue.service.spec.ts src/config/orchestrator.config.spec.ts`: pass (`26` files, `737` tests)
+- `pnpm --filter @mosaic/web test -- src/components/widgets/__tests__/TaskProgressWidget.test.tsx src/components/widgets/__tests__/AgentStatusWidget.test.tsx`: pass (`89` files, `1117` tests, `3` skipped)
diff --git a/scripts/agent/orchestrator-daemon.sh b/scripts/agent/orchestrator-daemon.sh
new file mode 100755
index 0000000..7700f98
--- /dev/null
+++ b/scripts/agent/orchestrator-daemon.sh
@@ -0,0 +1,102 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=./common.sh
+source "$SCRIPT_DIR/common.sh"
+
+ensure_repo_root
+
+MOSAIC_HOME="${MOSAIC_HOME:-$HOME/.config/mosaic}"
+ORCH_DIR=".mosaic/orchestrator"
+PID_FILE="$ORCH_DIR/orchestrator.pid"
+LOG_FILE="$ORCH_DIR/logs/daemon.log"
+
+usage() {
+  cat <<USAGE
+Usage: $(basename "$0") <start|drain|stop|status> [--poll-sec N] [--no-sync]
+
+Commands:
+  start    Run orchestrator drain loop in background (detached)
+  drain    Run orchestrator drain loop in foreground (until queue drained)
+  stop     Stop background orchestrator if running
+  status   Show background orchestrator status
+
+Options:
+  --poll-sec N   Poll interval (default: 15)
+  --no-sync      Skip docs/tasks.md -> orchestrator queue sync before run
+USAGE
+}
+
+cmd="${1:-status}"
+if [[ $# -gt 0 ]]; then
+  shift
+fi
+
+poll_sec=15
+sync_arg=""
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --poll-sec)
+      poll_sec="${2:-15}"
+      shift 2
+      ;;
+    --no-sync)
+      sync_arg="--no-sync"
+      shift
+      ;;
+    *)
+      echo "[agent-framework] unknown argument: $1" >&2
+      usage
+      exit 1
+      ;;
+  esac
+done
+
+mkdir -p "$ORCH_DIR/logs" "$ORCH_DIR/results"
+
+is_running() {
+  [[ -f "$PID_FILE" ]] || return 1
+  local pid
+  pid="$(cat "$PID_FILE" 2>/dev/null || true)"
+  [[ -n "$pid" ]] || return 1
+  kill -0 "$pid" 2>/dev/null
+}
+
+case "$cmd" in
+  start)
+    if is_running; then
+      echo "[agent-framework] orchestrator already running (pid=$(cat "$PID_FILE"))"
+      exit 0
+    fi
+    nohup "$MOSAIC_HOME/bin/mosaic-orchestrator-drain" --poll-sec "$poll_sec" $sync_arg >"$LOG_FILE" 2>&1 &
+    echo "$!" > "$PID_FILE"
+    echo "[agent-framework] orchestrator started (pid=$!, log=$LOG_FILE)"
+    ;;
+  drain)
+    exec "$MOSAIC_HOME/bin/mosaic-orchestrator-drain" --poll-sec "$poll_sec" $sync_arg
+    ;;
+  stop)
+    if ! is_running; then
+      echo "[agent-framework] orchestrator not running"
+      rm -f "$PID_FILE"
+      exit 0
+    fi
+    pid="$(cat "$PID_FILE")"
+    kill "$pid" || true
+    rm -f "$PID_FILE"
+    echo "[agent-framework] orchestrator stopped (pid=$pid)"
+    ;;
+  status)
+    if is_running; then
+      echo "[agent-framework] orchestrator running (pid=$(cat "$PID_FILE"), log=$LOG_FILE)"
+    else
+      echo "[agent-framework] orchestrator not running"
+      rm -f "$PID_FILE"
+    fi
+    ;;
+  *)
+    usage
+    exit 1
+    ;;
+esac
diff --git a/scripts/agent/orchestrator-worker.sh b/scripts/agent/orchestrator-worker.sh
new file mode 100755
index 0000000..5e384da
--- /dev/null
+++ b/scripts/agent/orchestrator-worker.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+task_file="${1:-}"
+if [[ -z "$task_file" || ! -f "$task_file" ]]; then
+  echo "[orchestrator-worker] missing task file argument" >&2
+  exit 1
+fi
+
+worker_exec="${MOSAIC_WORKER_EXEC:-}"
+if [[ -z "$worker_exec" ]]; then
+  if command -v codex >/dev/null 2>&1; then
+    worker_exec="codex -p"
+  elif command -v opencode >/dev/null 2>&1; then
+    worker_exec="opencode -p"
+  else
+    echo "[orchestrator-worker] set MOSAIC_WORKER_EXEC to your worker command (example: 'codex -p' or 'opencode -p')" >&2
+    exit 1
+  fi
+fi
+
+prompt="$(python3 - "$task_file" <<'PY'
+import json
+import sys
+from pathlib import Path
+
+task = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
+task_id = str(task.get("id", "TASK"))
+title = str(task.get("title", ""))
+description = str(task.get("description", ""))
+meta = task.get("metadata", {}) or {}
+issue = str(meta.get("issue", ""))
+repo = str(meta.get("repo", ""))
+branch = str(meta.get("branch", ""))
+depends = task.get("depends_on", [])
+if isinstance(depends, list):
+    depends_str = ", ".join(str(x) for x in depends)
+else:
+    depends_str = str(depends)
+
+print(
+    f"""Read ~/.config/mosaic/STANDARDS.md, then AGENTS.md and SOUL.md (if present).
+Complete this queued task fully.
+
+Task ID: {task_id}
+Title: {title}
+Description: {description}
+Issue: {issue}
+Repo hint: {repo}
+Branch hint: {branch}
+Depends on: {depends_str}
+
+Requirements:
+- Implement and verify the task end-to-end.
+- Keep changes scoped to this task.
+- Run project checks and tests relevant to touched code.
+- Return with a concise summary of what changed and verification results.
+"""
+)
+PY
+)"
+
+PROMPT="$prompt" bash -lc "$worker_exec \"\$PROMPT\""