feat(web): add Mission Control page layout shell

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/orchestrator/src/api/agent-providers/agent-providers.controller.ts

@@ -0,0 +1,54 @@
+import {
+  Body,
+  Controller,
+  Delete,
+  Get,
+  Param,
+  Patch,
+  Post,
+  UseGuards,
+  UsePipes,
+  ValidationPipe,
+} from "@nestjs/common";
+import type { AgentProviderConfig } from "@prisma/client";
+import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+import { OrchestratorThrottlerGuard } from "../../common/guards/throttler.guard";
+import { AgentProvidersService } from "./agent-providers.service";
+import { CreateAgentProviderDto } from "./dto/create-agent-provider.dto";
+import { UpdateAgentProviderDto } from "./dto/update-agent-provider.dto";
+
+@Controller("agent-providers")
+@UseGuards(OrchestratorApiKeyGuard, OrchestratorThrottlerGuard)
+export class AgentProvidersController {
+  constructor(private readonly agentProvidersService: AgentProvidersService) {}
+
+  @Get()
+  async list(): Promise<AgentProviderConfig[]> {
+    return this.agentProvidersService.list();
+  }
+
+  @Get(":id")
+  async getById(@Param("id") id: string): Promise<AgentProviderConfig> {
+    return this.agentProvidersService.getById(id);
+  }
+
+  @Post()
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  async create(@Body() dto: CreateAgentProviderDto): Promise<AgentProviderConfig> {
+    return this.agentProvidersService.create(dto);
+  }
+
+  @Patch(":id")
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  async update(
+    @Param("id") id: string,
+    @Body() dto: UpdateAgentProviderDto
+  ): Promise<AgentProviderConfig> {
+    return this.agentProvidersService.update(id, dto);
+  }
+
+  @Delete(":id")
+  async delete(@Param("id") id: string): Promise<AgentProviderConfig> {
+    return this.agentProvidersService.delete(id);
+  }
+}

apps/orchestrator/src/api/agent-providers/agent-providers.module.ts

@@ -0,0 +1,12 @@
+import { Module } from "@nestjs/common";
+import { PrismaModule } from "../../prisma/prisma.module";
+import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+import { AgentProvidersController } from "./agent-providers.controller";
+import { AgentProvidersService } from "./agent-providers.service";
+
+@Module({
+  imports: [PrismaModule],
+  controllers: [AgentProvidersController],
+  providers: [OrchestratorApiKeyGuard, AgentProvidersService],
+})
+export class AgentProvidersModule {}

apps/orchestrator/src/api/agent-providers/agent-providers.service.spec.ts

@@ -0,0 +1,211 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { NotFoundException } from "@nestjs/common";
+import { AgentProvidersService } from "./agent-providers.service";
+import { PrismaService } from "../../prisma/prisma.service";
+
+describe("AgentProvidersService", () => {
+  let service: AgentProvidersService;
+  let prisma: {
+    agentProviderConfig: {
+      findMany: ReturnType<typeof vi.fn>;
+      findUnique: ReturnType<typeof vi.fn>;
+      create: ReturnType<typeof vi.fn>;
+      update: ReturnType<typeof vi.fn>;
+      delete: ReturnType<typeof vi.fn>;
+    };
+  };
+
+  beforeEach(() => {
+    prisma = {
+      agentProviderConfig: {
+        findMany: vi.fn(),
+        findUnique: vi.fn(),
+        create: vi.fn(),
+        update: vi.fn(),
+        delete: vi.fn(),
+      },
+    };
+
+    service = new AgentProvidersService(prisma as unknown as PrismaService);
+  });
+
+  it("lists all provider configs", async () => {
+    const expected = [
+      {
+        id: "cfg-1",
+        workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+        name: "Primary",
+        provider: "openai",
+        gatewayUrl: "https://gateway.example.com",
+        credentials: {},
+        isActive: true,
+        createdAt: new Date("2026-03-07T18:00:00.000Z"),
+        updatedAt: new Date("2026-03-07T18:00:00.000Z"),
+      },
+    ];
+    prisma.agentProviderConfig.findMany.mockResolvedValue(expected);
+
+    const result = await service.list();
+
+    expect(prisma.agentProviderConfig.findMany).toHaveBeenCalledWith({
+      orderBy: [{ createdAt: "desc" }, { id: "desc" }],
+    });
+    expect(result).toEqual(expected);
+  });
+
+  it("returns a single provider config", async () => {
+    const expected = {
+      id: "cfg-1",
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "Primary",
+      provider: "openai",
+      gatewayUrl: "https://gateway.example.com",
+      credentials: { apiKeyRef: "vault:openai" },
+      isActive: true,
+      createdAt: new Date("2026-03-07T18:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T18:00:00.000Z"),
+    };
+    prisma.agentProviderConfig.findUnique.mockResolvedValue(expected);
+
+    const result = await service.getById("cfg-1");
+
+    expect(prisma.agentProviderConfig.findUnique).toHaveBeenCalledWith({
+      where: { id: "cfg-1" },
+    });
+    expect(result).toEqual(expected);
+  });
+
+  it("throws NotFoundException when provider config is missing", async () => {
+    prisma.agentProviderConfig.findUnique.mockResolvedValue(null);
+
+    await expect(service.getById("missing")).rejects.toBeInstanceOf(NotFoundException);
+  });
+
+  it("creates a provider config with default credentials", async () => {
+    const created = {
+      id: "cfg-created",
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "New Provider",
+      provider: "claude",
+      gatewayUrl: "https://gateway.example.com",
+      credentials: {},
+      isActive: true,
+      createdAt: new Date("2026-03-07T18:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T18:00:00.000Z"),
+    };
+    prisma.agentProviderConfig.create.mockResolvedValue(created);
+
+    const result = await service.create({
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "New Provider",
+      provider: "claude",
+      gatewayUrl: "https://gateway.example.com",
+    });
+
+    expect(prisma.agentProviderConfig.create).toHaveBeenCalledWith({
+      data: {
+        workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+        name: "New Provider",
+        provider: "claude",
+        gatewayUrl: "https://gateway.example.com",
+        credentials: {},
+      },
+    });
+    expect(result).toEqual(created);
+  });
+
+  it("updates a provider config", async () => {
+    prisma.agentProviderConfig.findUnique.mockResolvedValue({
+      id: "cfg-1",
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "Primary",
+      provider: "openai",
+      gatewayUrl: "https://gateway.example.com",
+      credentials: {},
+      isActive: true,
+      createdAt: new Date("2026-03-07T18:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T18:00:00.000Z"),
+    });
+
+    const updated = {
+      id: "cfg-1",
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "Secondary",
+      provider: "openai",
+      gatewayUrl: "https://gateway2.example.com",
+      credentials: { apiKeyRef: "vault:new" },
+      isActive: false,
+      createdAt: new Date("2026-03-07T18:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T19:00:00.000Z"),
+    };
+    prisma.agentProviderConfig.update.mockResolvedValue(updated);
+
+    const result = await service.update("cfg-1", {
+      name: "Secondary",
+      gatewayUrl: "https://gateway2.example.com",
+      credentials: { apiKeyRef: "vault:new" },
+      isActive: false,
+    });
+
+    expect(prisma.agentProviderConfig.update).toHaveBeenCalledWith({
+      where: { id: "cfg-1" },
+      data: {
+        name: "Secondary",
+        gatewayUrl: "https://gateway2.example.com",
+        credentials: { apiKeyRef: "vault:new" },
+        isActive: false,
+      },
+    });
+    expect(result).toEqual(updated);
+  });
+
+  it("throws NotFoundException when updating a missing provider config", async () => {
+    prisma.agentProviderConfig.findUnique.mockResolvedValue(null);
+
+    await expect(service.update("missing", { name: "Updated" })).rejects.toBeInstanceOf(
+      NotFoundException
+    );
+    expect(prisma.agentProviderConfig.update).not.toHaveBeenCalled();
+  });
+
+  it("deletes a provider config", async () => {
+    prisma.agentProviderConfig.findUnique.mockResolvedValue({
+      id: "cfg-1",
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "Primary",
+      provider: "openai",
+      gatewayUrl: "https://gateway.example.com",
+      credentials: {},
+      isActive: true,
+      createdAt: new Date("2026-03-07T18:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T18:00:00.000Z"),
+    });
+
+    const deleted = {
+      id: "cfg-1",
+      workspaceId: "8bcd7eda-a122-4d6c-adfd-b152f6f75369",
+      name: "Primary",
+      provider: "openai",
+      gatewayUrl: "https://gateway.example.com",
+      credentials: {},
+      isActive: true,
+      createdAt: new Date("2026-03-07T18:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T18:00:00.000Z"),
+    };
+    prisma.agentProviderConfig.delete.mockResolvedValue(deleted);
+
+    const result = await service.delete("cfg-1");
+
+    expect(prisma.agentProviderConfig.delete).toHaveBeenCalledWith({
+      where: { id: "cfg-1" },
+    });
+    expect(result).toEqual(deleted);
+  });
+
+  it("throws NotFoundException when deleting a missing provider config", async () => {
+    prisma.agentProviderConfig.findUnique.mockResolvedValue(null);
+
+    await expect(service.delete("missing")).rejects.toBeInstanceOf(NotFoundException);
+    expect(prisma.agentProviderConfig.delete).not.toHaveBeenCalled();
+  });
+});

apps/orchestrator/src/api/agent-providers/agent-providers.service.ts

@@ -0,0 +1,71 @@
+import { Injectable, NotFoundException } from "@nestjs/common";
+import type { AgentProviderConfig, Prisma } from "@prisma/client";
+import { PrismaService } from "../../prisma/prisma.service";
+import { CreateAgentProviderDto } from "./dto/create-agent-provider.dto";
+import { UpdateAgentProviderDto } from "./dto/update-agent-provider.dto";
+
+@Injectable()
+export class AgentProvidersService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async list(): Promise<AgentProviderConfig[]> {
+    return this.prisma.agentProviderConfig.findMany({
+      orderBy: [{ createdAt: "desc" }, { id: "desc" }],
+    });
+  }
+
+  async getById(id: string): Promise<AgentProviderConfig> {
+    const providerConfig = await this.prisma.agentProviderConfig.findUnique({
+      where: { id },
+    });
+
+    if (!providerConfig) {
+      throw new NotFoundException(`Agent provider config with id ${id} not found`);
+    }
+
+    return providerConfig;
+  }
+
+  async create(dto: CreateAgentProviderDto): Promise<AgentProviderConfig> {
+    return this.prisma.agentProviderConfig.create({
+      data: {
+        workspaceId: dto.workspaceId,
+        name: dto.name,
+        provider: dto.provider,
+        gatewayUrl: dto.gatewayUrl,
+        credentials: this.toJsonValue(dto.credentials ?? {}),
+        ...(dto.isActive !== undefined ? { isActive: dto.isActive } : {}),
+      },
+    });
+  }
+
+  async update(id: string, dto: UpdateAgentProviderDto): Promise<AgentProviderConfig> {
+    await this.getById(id);
+
+    const data: Prisma.AgentProviderConfigUpdateInput = {
+      ...(dto.workspaceId !== undefined ? { workspaceId: dto.workspaceId } : {}),
+      ...(dto.name !== undefined ? { name: dto.name } : {}),
+      ...(dto.provider !== undefined ? { provider: dto.provider } : {}),
+      ...(dto.gatewayUrl !== undefined ? { gatewayUrl: dto.gatewayUrl } : {}),
+      ...(dto.isActive !== undefined ? { isActive: dto.isActive } : {}),
+      ...(dto.credentials !== undefined ? { credentials: this.toJsonValue(dto.credentials) } : {}),
+    };
+
+    return this.prisma.agentProviderConfig.update({
+      where: { id },
+      data,
+    });
+  }
+
+  async delete(id: string): Promise<AgentProviderConfig> {
+    await this.getById(id);
+
+    return this.prisma.agentProviderConfig.delete({
+      where: { id },
+    });
+  }
+
+  private toJsonValue(value: Record<string, unknown>): Prisma.InputJsonValue {
+    return value as Prisma.InputJsonValue;
+  }
+}

apps/orchestrator/src/api/agent-providers/dto/create-agent-provider.dto.ts

@@ -0,0 +1,26 @@
+import { IsBoolean, IsNotEmpty, IsObject, IsOptional, IsString, IsUUID } from "class-validator";
+
+export class CreateAgentProviderDto {
+  @IsUUID()
+  workspaceId!: string;
+
+  @IsString()
+  @IsNotEmpty()
+  name!: string;
+
+  @IsString()
+  @IsNotEmpty()
+  provider!: string;
+
+  @IsString()
+  @IsNotEmpty()
+  gatewayUrl!: string;
+
+  @IsOptional()
+  @IsObject()
+  credentials?: Record<string, unknown>;
+
+  @IsOptional()
+  @IsBoolean()
+  isActive?: boolean;
+}

apps/orchestrator/src/api/agent-providers/dto/update-agent-provider.dto.ts

@@ -0,0 +1,30 @@
+import { IsBoolean, IsNotEmpty, IsObject, IsOptional, IsString, IsUUID } from "class-validator";
+
+export class UpdateAgentProviderDto {
+  @IsOptional()
+  @IsUUID()
+  workspaceId?: string;
+
+  @IsOptional()
+  @IsString()
+  @IsNotEmpty()
+  name?: string;
+
+  @IsOptional()
+  @IsString()
+  @IsNotEmpty()
+  provider?: string;
+
+  @IsOptional()
+  @IsString()
+  @IsNotEmpty()
+  gatewayUrl?: string;
+
+  @IsOptional()
+  @IsObject()
+  credentials?: Record<string, unknown>;
+
+  @IsOptional()
+  @IsBoolean()
+  isActive?: boolean;
+}

apps/orchestrator/src/api/agents/agent-provider.registry.spec.ts

@@ -0,0 +1,202 @@
+import { Logger } from "@nestjs/common";
+import type {
+  AgentMessage,
+  AgentSession,
+  AgentSessionList,
+  IAgentProvider,
+  InjectResult,
+} from "@mosaic/shared";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { AgentProviderRegistry } from "./agent-provider.registry";
+import { InternalAgentProvider } from "./internal-agent.provider";
+
+type MockProvider = IAgentProvider & {
+  listSessions: ReturnType<typeof vi.fn>;
+  getSession: ReturnType<typeof vi.fn>;
+};
+
+const emptyMessageStream = async function* (): AsyncIterable<AgentMessage> {
+  return;
+};
+
+const createProvider = (providerId: string, sessions: AgentSession[] = []): MockProvider => {
+  return {
+    providerId,
+    providerType: providerId,
+    displayName: providerId,
+    listSessions: vi.fn().mockResolvedValue({
+      sessions,
+      total: sessions.length,
+    } as AgentSessionList),
+    getSession: vi.fn().mockResolvedValue(null),
+    getMessages: vi.fn().mockResolvedValue([]),
+    injectMessage: vi.fn().mockResolvedValue({ accepted: true } as InjectResult),
+    pauseSession: vi.fn().mockResolvedValue(undefined),
+    resumeSession: vi.fn().mockResolvedValue(undefined),
+    killSession: vi.fn().mockResolvedValue(undefined),
+    streamMessages: vi.fn().mockReturnValue(emptyMessageStream()),
+    isAvailable: vi.fn().mockResolvedValue(true),
+  };
+};
+
+describe("AgentProviderRegistry", () => {
+  let registry: AgentProviderRegistry;
+  let internalProvider: MockProvider;
+
+  beforeEach(() => {
+    internalProvider = createProvider("internal");
+    registry = new AgentProviderRegistry(internalProvider as unknown as InternalAgentProvider);
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it("registers InternalAgentProvider on module init", () => {
+    registry.onModuleInit();
+
+    expect(registry.getProvider("internal")).toBe(internalProvider);
+  });
+
+  it("registers providers and returns null for unknown provider ids", () => {
+    const externalProvider = createProvider("openclaw");
+
+    registry.registerProvider(externalProvider);
+
+    expect(registry.getProvider("openclaw")).toBe(externalProvider);
+    expect(registry.getProvider("missing")).toBeNull();
+  });
+
+  it("aggregates and sorts sessions from all providers", async () => {
+    const internalSessions: AgentSession[] = [
+      {
+        id: "session-older",
+        providerId: "internal",
+        providerType: "internal",
+        status: "active",
+        createdAt: new Date("2026-03-07T10:00:00.000Z"),
+        updatedAt: new Date("2026-03-07T10:10:00.000Z"),
+      },
+    ];
+
+    const externalSessions: AgentSession[] = [
+      {
+        id: "session-newer",
+        providerId: "openclaw",
+        providerType: "external",
+        status: "paused",
+        createdAt: new Date("2026-03-07T09:00:00.000Z"),
+        updatedAt: new Date("2026-03-07T10:20:00.000Z"),
+      },
+    ];
+
+    internalProvider.listSessions.mockResolvedValue({
+      sessions: internalSessions,
+      total: internalSessions.length,
+    } as AgentSessionList);
+
+    const externalProvider = createProvider("openclaw", externalSessions);
+    registry.onModuleInit();
+    registry.registerProvider(externalProvider);
+
+    const result = await registry.listAllSessions();
+
+    expect(result.map((session) => session.id)).toEqual(["session-newer", "session-older"]);
+    expect(internalProvider.listSessions).toHaveBeenCalledTimes(1);
+    expect(externalProvider.listSessions).toHaveBeenCalledTimes(1);
+  });
+
+  it("skips provider failures and logs warning", async () => {
+    const warnSpy = vi.spyOn(Logger.prototype, "warn").mockImplementation(() => undefined);
+
+    const healthyProvider = createProvider("healthy", [
+      {
+        id: "session-1",
+        providerId: "healthy",
+        providerType: "external",
+        status: "active",
+        createdAt: new Date("2026-03-07T11:00:00.000Z"),
+        updatedAt: new Date("2026-03-07T11:00:00.000Z"),
+      },
+    ]);
+
+    const failingProvider = createProvider("failing");
+    failingProvider.listSessions.mockRejectedValue(new Error("provider offline"));
+
+    registry.onModuleInit();
+    registry.registerProvider(healthyProvider);
+    registry.registerProvider(failingProvider);
+
+    const result = await registry.listAllSessions();
+
+    expect(result).toHaveLength(1);
+    expect(result[0]?.id).toBe("session-1");
+    expect(warnSpy).toHaveBeenCalledWith(
+      expect.stringContaining("Failed to list sessions for provider failing")
+    );
+  });
+
+  it("finds a provider for an existing session", async () => {
+    const targetSession: AgentSession = {
+      id: "session-found",
+      providerId: "openclaw",
+      providerType: "external",
+      status: "active",
+      createdAt: new Date("2026-03-07T12:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T12:10:00.000Z"),
+    };
+
+    const openclawProvider = createProvider("openclaw");
+    openclawProvider.getSession.mockResolvedValue(targetSession);
+
+    registry.onModuleInit();
+    registry.registerProvider(openclawProvider);
+
+    const result = await registry.getProviderForSession(targetSession.id);
+
+    expect(result).toEqual({
+      provider: openclawProvider,
+      session: targetSession,
+    });
+    expect(internalProvider.getSession).toHaveBeenCalledWith(targetSession.id);
+    expect(openclawProvider.getSession).toHaveBeenCalledWith(targetSession.id);
+  });
+
+  it("returns null when no provider has the requested session", async () => {
+    const openclawProvider = createProvider("openclaw");
+
+    registry.onModuleInit();
+    registry.registerProvider(openclawProvider);
+
+    await expect(registry.getProviderForSession("missing-session")).resolves.toBeNull();
+  });
+
+  it("continues searching providers when getSession throws", async () => {
+    const warnSpy = vi.spyOn(Logger.prototype, "warn").mockImplementation(() => undefined);
+    const failingProvider = createProvider("failing");
+    failingProvider.getSession.mockRejectedValue(new Error("provider timeout"));
+
+    const healthySession: AgentSession = {
+      id: "session-healthy",
+      providerId: "healthy",
+      providerType: "external",
+      status: "active",
+      createdAt: new Date("2026-03-07T12:15:00.000Z"),
+      updatedAt: new Date("2026-03-07T12:16:00.000Z"),
+    };
+
+    const healthyProvider = createProvider("healthy");
+    healthyProvider.getSession.mockResolvedValue(healthySession);
+
+    registry.onModuleInit();
+    registry.registerProvider(failingProvider);
+    registry.registerProvider(healthyProvider);
+
+    const result = await registry.getProviderForSession(healthySession.id);
+
+    expect(result).toEqual({ provider: healthyProvider, session: healthySession });
+    expect(warnSpy).toHaveBeenCalledWith(
+      expect.stringContaining("Failed to get session session-healthy for provider failing")
+    );
+  });
+});

apps/orchestrator/src/api/agents/agent-provider.registry.ts

@@ -0,0 +1,79 @@
+import { Injectable, Logger, OnModuleInit } from "@nestjs/common";
+import type { AgentSession, IAgentProvider } from "@mosaic/shared";
+import { InternalAgentProvider } from "./internal-agent.provider";
+
+@Injectable()
+export class AgentProviderRegistry implements OnModuleInit {
+  private readonly logger = new Logger(AgentProviderRegistry.name);
+  private readonly providers = new Map<string, IAgentProvider>();
+
+  constructor(private readonly internalProvider: InternalAgentProvider) {}
+
+  onModuleInit(): void {
+    this.registerProvider(this.internalProvider);
+  }
+
+  registerProvider(provider: IAgentProvider): void {
+    const existingProvider = this.providers.get(provider.providerId);
+    if (existingProvider !== undefined) {
+      this.logger.warn(`Replacing existing provider registration for ${provider.providerId}`);
+    }
+
+    this.providers.set(provider.providerId, provider);
+  }
+
+  getProvider(providerId: string): IAgentProvider | null {
+    return this.providers.get(providerId) ?? null;
+  }
+
+  async getProviderForSession(
+    sessionId: string
+  ): Promise<{ provider: IAgentProvider; session: AgentSession } | null> {
+    for (const provider of this.providers.values()) {
+      try {
+        const session = await provider.getSession(sessionId);
+        if (session !== null) {
+          return {
+            provider,
+            session,
+          };
+        }
+      } catch (error) {
+        this.logger.warn(
+          `Failed to get session ${sessionId} for provider ${provider.providerId}: ${this.toErrorMessage(error)}`
+        );
+      }
+    }
+
+    return null;
+  }
+
+  async listAllSessions(): Promise<AgentSession[]> {
+    const providers = [...this.providers.values()];
+    const sessionsByProvider = await Promise.all(
+      providers.map(async (provider) => {
+        try {
+          const { sessions } = await provider.listSessions();
+          return sessions;
+        } catch (error) {
+          this.logger.warn(
+            `Failed to list sessions for provider ${provider.providerId}: ${this.toErrorMessage(error)}`
+          );
+          return [];
+        }
+      })
+    );
+
+    return sessionsByProvider
+      .flat()
+      .sort((left, right) => right.updatedAt.getTime() - left.updatedAt.getTime());
+  }
+
+  private toErrorMessage(error: unknown): string {
+    if (error instanceof Error) {
+      return error.message;
+    }
+
+    return String(error);
+  }
+}

apps/orchestrator/src/api/agents/agents.module.ts

@@ -11,6 +11,7 @@ import { AgentMessagesService } from "./agent-messages.service";
 import { AgentControlService } from "./agent-control.service";
 import { AgentTreeService } from "./agent-tree.service";
 import { InternalAgentProvider } from "./internal-agent.provider";
+import { AgentProviderRegistry } from "./agent-provider.registry";
 
 @Module({
   imports: [QueueModule, SpawnerModule, KillswitchModule, ValkeyModule, PrismaModule],
@@ -22,7 +23,8 @@ import { InternalAgentProvider } from "./internal-agent.provider";
     AgentControlService,
     AgentTreeService,
     InternalAgentProvider,
+    AgentProviderRegistry,
   ],
-  exports: [InternalAgentProvider],
+  exports: [InternalAgentProvider, AgentProviderRegistry],
 })
 export class AgentsModule {}

apps/orchestrator/src/api/mission-control/dto/get-mission-control-messages-query.dto.ts

@@ -0,0 +1,15 @@
+import { Type } from "class-transformer";
+import { IsInt, IsOptional, IsString, Max, Min } from "class-validator";
+
+export class GetMissionControlMessagesQueryDto {
+  @IsOptional()
+  @Type(() => Number)
+  @IsInt()
+  @Min(1)
+  @Max(200)
+  limit?: number;
+
+  @IsOptional()
+  @IsString()
+  before?: string;
+}

apps/orchestrator/src/api/mission-control/dto/kill-session.dto.ts

@@ -0,0 +1,7 @@
+import { IsBoolean, IsOptional } from "class-validator";
+
+export class KillSessionDto {
+  @IsOptional()
+  @IsBoolean()
+  force?: boolean;
+}

apps/orchestrator/src/api/mission-control/mission-control.controller.spec.ts

@@ -0,0 +1,67 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { AgentSession } from "@mosaic/shared";
+import type { PrismaService } from "../../prisma/prisma.service";
+import { AgentProviderRegistry } from "../agents/agent-provider.registry";
+import { MissionControlController } from "./mission-control.controller";
+import { MissionControlService } from "./mission-control.service";
+
+describe("MissionControlController", () => {
+  let controller: MissionControlController;
+  let registry: {
+    listAllSessions: ReturnType<typeof vi.fn>;
+    getProviderForSession: ReturnType<typeof vi.fn>;
+  };
+
+  beforeEach(() => {
+    registry = {
+      listAllSessions: vi.fn(),
+      getProviderForSession: vi.fn(),
+    };
+
+    const prisma = {
+      operatorAuditLog: {
+        create: vi.fn().mockResolvedValue(undefined),
+      },
+    };
+
+    const service = new MissionControlService(
+      registry as unknown as AgentProviderRegistry,
+      prisma as unknown as PrismaService
+    );
+
+    controller = new MissionControlController(service);
+  });
+
+  it("Phase 1 gate: unified sessions endpoint returns internal provider sessions", async () => {
+    const internalSession: AgentSession = {
+      id: "session-internal-1",
+      providerId: "internal",
+      providerType: "internal",
+      status: "active",
+      createdAt: new Date("2026-03-07T20:00:00.000Z"),
+      updatedAt: new Date("2026-03-07T20:01:00.000Z"),
+    };
+
+    const externalSession: AgentSession = {
+      id: "session-openclaw-1",
+      providerId: "openclaw",
+      providerType: "external",
+      status: "active",
+      createdAt: new Date("2026-03-07T20:02:00.000Z"),
+      updatedAt: new Date("2026-03-07T20:03:00.000Z"),
+    };
+
+    registry.listAllSessions.mockResolvedValue([internalSession, externalSession]);
+
+    const response = await controller.listSessions();
+
+    expect(registry.listAllSessions).toHaveBeenCalledTimes(1);
+    expect(response.sessions).toEqual([internalSession, externalSession]);
+    expect(response.sessions).toContainEqual(
+      expect.objectContaining({
+        id: "session-internal-1",
+        providerId: "internal",
+      })
+    );
+  });
+});

apps/orchestrator/src/api/mission-control/mission-control.controller.ts

@@ -0,0 +1,183 @@
+import {
+  Body,
+  Controller,
+  Get,
+  Header,
+  HttpCode,
+  MessageEvent,
+  Param,
+  Post,
+  Query,
+  Request,
+  Sse,
+  UseGuards,
+  UsePipes,
+  ValidationPipe,
+} from "@nestjs/common";
+import type { AgentMessage, AgentSession, InjectResult } from "@mosaic/shared";
+import { Observable } from "rxjs";
+import { AuthGuard } from "../../auth/guards/auth.guard";
+import { InjectAgentDto } from "../agents/dto/inject-agent.dto";
+import { GetMissionControlMessagesQueryDto } from "./dto/get-mission-control-messages-query.dto";
+import { KillSessionDto } from "./dto/kill-session.dto";
+import { MissionControlService } from "./mission-control.service";
+
+const DEFAULT_OPERATOR_ID = "mission-control";
+
+interface MissionControlRequest {
+  user?: {
+    id?: string;
+  };
+}
+
+@Controller("api/mission-control")
+@UseGuards(AuthGuard)
+export class MissionControlController {
+  constructor(private readonly missionControlService: MissionControlService) {}
+
+  @Get("sessions")
+  async listSessions(): Promise<{ sessions: AgentSession[] }> {
+    const sessions = await this.missionControlService.listSessions();
+    return { sessions };
+  }
+
+  @Get("sessions/:sessionId")
+  getSession(@Param("sessionId") sessionId: string): Promise<AgentSession> {
+    return this.missionControlService.getSession(sessionId);
+  }
+
+  @Get("sessions/:sessionId/messages")
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  async getMessages(
+    @Param("sessionId") sessionId: string,
+    @Query() query: GetMissionControlMessagesQueryDto
+  ): Promise<{ messages: AgentMessage[] }> {
+    const messages = await this.missionControlService.getMessages(
+      sessionId,
+      query.limit,
+      query.before
+    );
+
+    return { messages };
+  }
+
+  @Post("sessions/:sessionId/inject")
+  @HttpCode(200)
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  injectMessage(
+    @Param("sessionId") sessionId: string,
+    @Body() dto: InjectAgentDto,
+    @Request() req: MissionControlRequest
+  ): Promise<InjectResult> {
+    return this.missionControlService.injectMessage(
+      sessionId,
+      dto.message,
+      this.resolveOperatorId(req)
+    );
+  }
+
+  @Post("sessions/:sessionId/pause")
+  @HttpCode(200)
+  async pauseSession(
+    @Param("sessionId") sessionId: string,
+    @Request() req: MissionControlRequest
+  ): Promise<{ message: string }> {
+    await this.missionControlService.pauseSession(sessionId, this.resolveOperatorId(req));
+
+    return { message: `Session ${sessionId} paused` };
+  }
+
+  @Post("sessions/:sessionId/resume")
+  @HttpCode(200)
+  async resumeSession(
+    @Param("sessionId") sessionId: string,
+    @Request() req: MissionControlRequest
+  ): Promise<{ message: string }> {
+    await this.missionControlService.resumeSession(sessionId, this.resolveOperatorId(req));
+
+    return { message: `Session ${sessionId} resumed` };
+  }
+
+  @Post("sessions/:sessionId/kill")
+  @HttpCode(200)
+  @UsePipes(new ValidationPipe({ transform: true, whitelist: true }))
+  async killSession(
+    @Param("sessionId") sessionId: string,
+    @Body() dto: KillSessionDto,
+    @Request() req: MissionControlRequest
+  ): Promise<{ message: string }> {
+    await this.missionControlService.killSession(
+      sessionId,
+      dto.force ?? true,
+      this.resolveOperatorId(req)
+    );
+
+    return { message: `Session ${sessionId} killed` };
+  }
+
+  @Sse("sessions/:sessionId/stream")
+  @Header("Content-Type", "text/event-stream")
+  @Header("Cache-Control", "no-cache")
+  streamSessionMessages(@Param("sessionId") sessionId: string): Observable<MessageEvent> {
+    return new Observable<MessageEvent>((subscriber) => {
+      let isClosed = false;
+      let iterator: AsyncIterator<AgentMessage> | null = null;
+
+      void this.missionControlService
+        .streamMessages(sessionId)
+        .then(async (stream) => {
+          iterator = stream[Symbol.asyncIterator]();
+
+          for (;;) {
+            if (isClosed) {
+              break;
+            }
+
+            const next = (await iterator.next()) as { done: boolean; value: AgentMessage };
+            if (next.done) {
+              break;
+            }
+
+            subscriber.next({
+              data: this.toStreamPayload(next.value),
+            });
+          }
+
+          subscriber.complete();
+        })
+        .catch((error: unknown) => {
+          subscriber.error(error);
+        });
+
+      return () => {
+        isClosed = true;
+        void iterator?.return?.();
+      };
+    });
+  }
+
+  private resolveOperatorId(req: MissionControlRequest): string {
+    const operatorId = req.user?.id;
+    return typeof operatorId === "string" && operatorId.length > 0
+      ? operatorId
+      : DEFAULT_OPERATOR_ID;
+  }
+
+  private toStreamPayload(message: AgentMessage): {
+    id: string;
+    sessionId: string;
+    role: string;
+    content: string;
+    timestamp: string;
+    metadata?: Record<string, unknown>;
+  } {
+    return {
+      id: message.id,
+      sessionId: message.sessionId,
+      role: message.role,
+      content: message.content,
+      timestamp: message.timestamp.toISOString(),
+      ...(message.metadata !== undefined ? { metadata: message.metadata } : {}),
+    };
+  }
+}

apps/orchestrator/src/api/mission-control/mission-control.module.ts

@@ -0,0 +1,13 @@
+import { Module } from "@nestjs/common";
+import { AgentsModule } from "../agents/agents.module";
+import { AuthModule } from "../../auth/auth.module";
+import { PrismaModule } from "../../prisma/prisma.module";
+import { MissionControlController } from "./mission-control.controller";
+import { MissionControlService } from "./mission-control.service";
+
+@Module({
+  imports: [AgentsModule, AuthModule, PrismaModule],
+  controllers: [MissionControlController],
+  providers: [MissionControlService],
+})
+export class MissionControlModule {}

apps/orchestrator/src/api/mission-control/mission-control.service.spec.ts

@@ -0,0 +1,213 @@
+import { NotFoundException } from "@nestjs/common";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { AgentMessage, AgentSession, IAgentProvider, InjectResult } from "@mosaic/shared";
+import type { PrismaService } from "../../prisma/prisma.service";
+import { AgentProviderRegistry } from "../agents/agent-provider.registry";
+import { MissionControlService } from "./mission-control.service";
+
+type MockProvider = IAgentProvider & {
+  listSessions: ReturnType<typeof vi.fn>;
+  getSession: ReturnType<typeof vi.fn>;
+  getMessages: ReturnType<typeof vi.fn>;
+  injectMessage: ReturnType<typeof vi.fn>;
+  pauseSession: ReturnType<typeof vi.fn>;
+  resumeSession: ReturnType<typeof vi.fn>;
+  killSession: ReturnType<typeof vi.fn>;
+  streamMessages: ReturnType<typeof vi.fn>;
+};
+
+const emptyMessageStream = async function* (): AsyncIterable<AgentMessage> {
+  return;
+};
+
+const createProvider = (providerId = "internal"): MockProvider => ({
+  providerId,
+  providerType: providerId,
+  displayName: providerId,
+  listSessions: vi.fn().mockResolvedValue({ sessions: [], total: 0 }),
+  getSession: vi.fn().mockResolvedValue(null),
+  getMessages: vi.fn().mockResolvedValue([]),
+  injectMessage: vi.fn().mockResolvedValue({ accepted: true } as InjectResult),
+  pauseSession: vi.fn().mockResolvedValue(undefined),
+  resumeSession: vi.fn().mockResolvedValue(undefined),
+  killSession: vi.fn().mockResolvedValue(undefined),
+  streamMessages: vi.fn().mockReturnValue(emptyMessageStream()),
+  isAvailable: vi.fn().mockResolvedValue(true),
+});
+
+describe("MissionControlService", () => {
+  let service: MissionControlService;
+  let registry: {
+    listAllSessions: ReturnType<typeof vi.fn>;
+    getProviderForSession: ReturnType<typeof vi.fn>;
+  };
+  let prisma: {
+    operatorAuditLog: {
+      create: ReturnType<typeof vi.fn>;
+    };
+  };
+
+  const session: AgentSession = {
+    id: "session-1",
+    providerId: "internal",
+    providerType: "internal",
+    status: "active",
+    createdAt: new Date("2026-03-07T14:00:00.000Z"),
+    updatedAt: new Date("2026-03-07T14:01:00.000Z"),
+  };
+
+  beforeEach(() => {
+    registry = {
+      listAllSessions: vi.fn().mockResolvedValue([session]),
+      getProviderForSession: vi.fn().mockResolvedValue(null),
+    };
+
+    prisma = {
+      operatorAuditLog: {
+        create: vi.fn().mockResolvedValue(undefined),
+      },
+    };
+
+    service = new MissionControlService(
+      registry as unknown as AgentProviderRegistry,
+      prisma as unknown as PrismaService
+    );
+  });
+
+  it("lists sessions from the registry", async () => {
+    await expect(service.listSessions()).resolves.toEqual([session]);
+    expect(registry.listAllSessions).toHaveBeenCalledTimes(1);
+  });
+
+  it("returns a session when it is found", async () => {
+    const provider = createProvider("internal");
+    registry.getProviderForSession.mockResolvedValue({ provider, session });
+
+    await expect(service.getSession(session.id)).resolves.toEqual(session);
+  });
+
+  it("throws NotFoundException when session lookup fails", async () => {
+    await expect(service.getSession("missing-session")).rejects.toBeInstanceOf(NotFoundException);
+  });
+
+  it("gets messages from the resolved provider", async () => {
+    const provider = createProvider("openclaw");
+    const messages: AgentMessage[] = [
+      {
+        id: "message-1",
+        sessionId: session.id,
+        role: "assistant",
+        content: "hello",
+        timestamp: new Date("2026-03-07T14:01:00.000Z"),
+      },
+    ];
+
+    provider.getMessages.mockResolvedValue(messages);
+    registry.getProviderForSession.mockResolvedValue({ provider, session });
+
+    await expect(service.getMessages(session.id, 25, "10")).resolves.toEqual(messages);
+    expect(provider.getMessages).toHaveBeenCalledWith(session.id, 25, "10");
+  });
+
+  it("injects a message and writes an audit log", async () => {
+    const provider = createProvider("internal");
+    const injectResult: InjectResult = { accepted: true, messageId: "msg-1" };
+    provider.injectMessage.mockResolvedValue(injectResult);
+    registry.getProviderForSession.mockResolvedValue({ provider, session });
+
+    await expect(service.injectMessage(session.id, "ship it", "operator-1")).resolves.toEqual(
+      injectResult
+    );
+
+    expect(provider.injectMessage).toHaveBeenCalledWith(session.id, "ship it");
+    expect(prisma.operatorAuditLog.create).toHaveBeenCalledWith({
+      data: {
+        sessionId: session.id,
+        userId: "operator-1",
+        provider: "internal",
+        action: "inject",
+        content: "ship it",
+        metadata: {
+          payload: { message: "ship it" },
+        },
+      },
+    });
+  });
+
+  it("pauses and resumes using default operator id", async () => {
+    const provider = createProvider("openclaw");
+    registry.getProviderForSession.mockResolvedValue({ provider, session });
+
+    await service.pauseSession(session.id);
+    await service.resumeSession(session.id);
+
+    expect(provider.pauseSession).toHaveBeenCalledWith(session.id);
+    expect(provider.resumeSession).toHaveBeenCalledWith(session.id);
+    expect(prisma.operatorAuditLog.create).toHaveBeenNthCalledWith(1, {
+      data: {
+        sessionId: session.id,
+        userId: "mission-control",
+        provider: "openclaw",
+        action: "pause",
+        metadata: {
+          payload: {},
+        },
+      },
+    });
+    expect(prisma.operatorAuditLog.create).toHaveBeenNthCalledWith(2, {
+      data: {
+        sessionId: session.id,
+        userId: "mission-control",
+        provider: "openclaw",
+        action: "resume",
+        metadata: {
+          payload: {},
+        },
+      },
+    });
+  });
+
+  it("kills with provided force value and writes audit log", async () => {
+    const provider = createProvider("openclaw");
+    registry.getProviderForSession.mockResolvedValue({ provider, session });
+
+    await service.killSession(session.id, false, "operator-2");
+
+    expect(provider.killSession).toHaveBeenCalledWith(session.id, false);
+    expect(prisma.operatorAuditLog.create).toHaveBeenCalledWith({
+      data: {
+        sessionId: session.id,
+        userId: "operator-2",
+        provider: "openclaw",
+        action: "kill",
+        metadata: {
+          payload: { force: false },
+        },
+      },
+    });
+  });
+
+  it("resolves provider message stream", async () => {
+    const provider = createProvider("internal");
+    const messageStream = (async function* (): AsyncIterable<AgentMessage> {
+      yield {
+        id: "message-1",
+        sessionId: session.id,
+        role: "assistant",
+        content: "stream",
+        timestamp: new Date("2026-03-07T14:03:00.000Z"),
+      };
+    })();
+
+    provider.streamMessages.mockReturnValue(messageStream);
+    registry.getProviderForSession.mockResolvedValue({ provider, session });
+
+    await expect(service.streamMessages(session.id)).resolves.toBe(messageStream);
+    expect(provider.streamMessages).toHaveBeenCalledWith(session.id);
+  });
+
+  it("does not write audit log when session cannot be resolved", async () => {
+    await expect(service.pauseSession("missing-session")).rejects.toBeInstanceOf(NotFoundException);
+    expect(prisma.operatorAuditLog.create).not.toHaveBeenCalled();
+  });
+});

apps/orchestrator/src/api/mission-control/mission-control.service.ts

@@ -0,0 +1,139 @@
+import { Injectable, NotFoundException } from "@nestjs/common";
+import type { AgentMessage, AgentSession, IAgentProvider, InjectResult } from "@mosaic/shared";
+import type { Prisma } from "@prisma/client";
+import { PrismaService } from "../../prisma/prisma.service";
+import { AgentProviderRegistry } from "../agents/agent-provider.registry";
+
+type MissionControlAction = "inject" | "pause" | "resume" | "kill";
+
+const DEFAULT_OPERATOR_ID = "mission-control";
+
+@Injectable()
+export class MissionControlService {
+  constructor(
+    private readonly registry: AgentProviderRegistry,
+    private readonly prisma: PrismaService
+  ) {}
+
+  listSessions(): Promise<AgentSession[]> {
+    return this.registry.listAllSessions();
+  }
+
+  async getSession(sessionId: string): Promise<AgentSession> {
+    const resolved = await this.registry.getProviderForSession(sessionId);
+    if (!resolved) {
+      throw new NotFoundException(`Session ${sessionId} not found`);
+    }
+
+    return resolved.session;
+  }
+
+  async getMessages(sessionId: string, limit?: number, before?: string): Promise<AgentMessage[]> {
+    const { provider } = await this.getProviderForSessionOrThrow(sessionId);
+    return provider.getMessages(sessionId, limit, before);
+  }
+
+  async injectMessage(
+    sessionId: string,
+    message: string,
+    operatorId = DEFAULT_OPERATOR_ID
+  ): Promise<InjectResult> {
+    const { provider } = await this.getProviderForSessionOrThrow(sessionId);
+    const result = await provider.injectMessage(sessionId, message);
+
+    await this.writeOperatorAuditLog({
+      sessionId,
+      providerId: provider.providerId,
+      operatorId,
+      action: "inject",
+      content: message,
+      payload: { message },
+    });
+
+    return result;
+  }
+
+  async pauseSession(sessionId: string, operatorId = DEFAULT_OPERATOR_ID): Promise<void> {
+    const { provider } = await this.getProviderForSessionOrThrow(sessionId);
+    await provider.pauseSession(sessionId);
+
+    await this.writeOperatorAuditLog({
+      sessionId,
+      providerId: provider.providerId,
+      operatorId,
+      action: "pause",
+      payload: {},
+    });
+  }
+
+  async resumeSession(sessionId: string, operatorId = DEFAULT_OPERATOR_ID): Promise<void> {
+    const { provider } = await this.getProviderForSessionOrThrow(sessionId);
+    await provider.resumeSession(sessionId);
+
+    await this.writeOperatorAuditLog({
+      sessionId,
+      providerId: provider.providerId,
+      operatorId,
+      action: "resume",
+      payload: {},
+    });
+  }
+
+  async killSession(
+    sessionId: string,
+    force = true,
+    operatorId = DEFAULT_OPERATOR_ID
+  ): Promise<void> {
+    const { provider } = await this.getProviderForSessionOrThrow(sessionId);
+    await provider.killSession(sessionId, force);
+
+    await this.writeOperatorAuditLog({
+      sessionId,
+      providerId: provider.providerId,
+      operatorId,
+      action: "kill",
+      payload: { force },
+    });
+  }
+
+  async streamMessages(sessionId: string): Promise<AsyncIterable<AgentMessage>> {
+    const { provider } = await this.getProviderForSessionOrThrow(sessionId);
+    return provider.streamMessages(sessionId);
+  }
+
+  private async getProviderForSessionOrThrow(
+    sessionId: string
+  ): Promise<{ provider: IAgentProvider; session: AgentSession }> {
+    const resolved = await this.registry.getProviderForSession(sessionId);
+
+    if (!resolved) {
+      throw new NotFoundException(`Session ${sessionId} not found`);
+    }
+
+    return resolved;
+  }
+
+  private toJsonValue(value: Record<string, unknown>): Prisma.InputJsonValue {
+    return value as Prisma.InputJsonValue;
+  }
+
+  private async writeOperatorAuditLog(params: {
+    sessionId: string;
+    providerId: string;
+    operatorId: string;
+    action: MissionControlAction;
+    content?: string;
+    payload: Record<string, unknown>;
+  }): Promise<void> {
+    await this.prisma.operatorAuditLog.create({
+      data: {
+        sessionId: params.sessionId,
+        userId: params.operatorId,
+        provider: params.providerId,
+        action: params.action,
+        ...(params.content !== undefined ? { content: params.content } : {}),
+        metadata: this.toJsonValue({ payload: params.payload }),
+      },
+    });
+  }
+}

apps/orchestrator/src/app.module.ts

@@ -4,7 +4,9 @@ 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 { MissionControlModule } from "./api/mission-control/mission-control.module";
 import { QueueApiModule } from "./api/queue/queue-api.module";
+import { AgentProvidersModule } from "./api/agent-providers/agent-providers.module";
 import { CoordinatorModule } from "./coordinator/coordinator.module";
 import { BudgetModule } from "./budget/budget.module";
 import { CIModule } from "./ci";
@@ -51,6 +53,8 @@ import { orchestratorConfig } from "./config/orchestrator.config";
     ]),
     HealthModule,
     AgentsModule,
+    AgentProvidersModule,
+    MissionControlModule,
     QueueApiModule,
     CoordinatorModule,
     BudgetModule,

apps/orchestrator/src/auth/auth.module.ts

@@ -0,0 +1,9 @@
+import { Module } from "@nestjs/common";
+import { OrchestratorApiKeyGuard } from "../common/guards/api-key.guard";
+import { AuthGuard } from "./guards/auth.guard";
+
+@Module({
+  providers: [OrchestratorApiKeyGuard, AuthGuard],
+  exports: [AuthGuard],
+})
+export class AuthModule {}

apps/orchestrator/src/auth/guards/auth.guard.ts

@@ -0,0 +1,11 @@
+import { CanActivate, ExecutionContext, Injectable } from "@nestjs/common";
+import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+
+@Injectable()
+export class AuthGuard implements CanActivate {
+  constructor(private readonly apiKeyGuard: OrchestratorApiKeyGuard) {}
+
+  canActivate(context: ExecutionContext): boolean | Promise<boolean> {
+    return this.apiKeyGuard.canActivate(context);
+  }
+}

apps/web/src/app/(authenticated)/mission-control/page.tsx

@@ -0,0 +1,5 @@
+import { MissionControlLayout } from "@/components/mission-control/MissionControlLayout";
+
+export default function MissionControlPage(): React.JSX.Element {
+  return <MissionControlLayout />;
+}

apps/web/src/components/layout/AppSidebar.tsx

@@ -156,6 +156,26 @@ function IconTerminal(): React.JSX.Element {
   );
 }
 
+function IconMissionControl(): React.JSX.Element {
+  return (
+    <svg
+      width="16"
+      height="16"
+      viewBox="0 0 16 16"
+      fill="none"
+      stroke="currentColor"
+      strokeWidth="1.5"
+      aria-hidden="true"
+    >
+      <circle cx="8" cy="8" r="1.5" />
+      <path d="M11 5a4.25 4.25 0 0 1 0 6" />
+      <path d="M5 5a4.25 4.25 0 0 0 0 6" />
+      <path d="M13.5 2.5a7.75 7.75 0 0 1 0 11" />
+      <path d="M2.5 2.5a7.75 7.75 0 0 0 0 11" />
+    </svg>
+  );
+}
+
 function IconSettings(): React.JSX.Element {
   return (
     <svg
@@ -260,6 +280,11 @@ const NAV_GROUPS: NavGroup[] = [
         label: "Terminal",
         icon: <IconTerminal />,
       },
+      {
+        href: "/mission-control",
+        label: "Mission Control",
+        icon: <IconMissionControl />,
+      },
     ],
   },
   {

apps/web/src/components/mission-control/GlobalAgentRoster.tsx

@@ -0,0 +1,16 @@
+"use client";
+
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+
+export function GlobalAgentRoster(): React.JSX.Element {
+  return (
+    <Card className="flex h-full min-h-0 flex-col">
+      <CardHeader>
+        <CardTitle className="text-base">Agent Roster</CardTitle>
+      </CardHeader>
+      <CardContent className="flex flex-1 items-center justify-center text-sm text-muted-foreground">
+        No active agents
+      </CardContent>
+    </Card>
+  );
+}

apps/web/src/components/mission-control/MissionControlLayout.tsx

@@ -0,0 +1,21 @@
+"use client";
+
+import { GlobalAgentRoster } from "@/components/mission-control/GlobalAgentRoster";
+import { MissionControlPanel } from "@/components/mission-control/MissionControlPanel";
+
+const DEFAULT_PANEL_SLOTS = ["panel-1", "panel-2", "panel-3", "panel-4"] as const;
+
+export function MissionControlLayout(): React.JSX.Element {
+  return (
+    <section className="h-full min-h-0 overflow-hidden" aria-label="Mission Control">
+      <div className="grid h-full min-h-0 gap-4 xl:grid-cols-[280px_minmax(0,1fr)]">
+        <aside className="h-full min-h-0">
+          <GlobalAgentRoster />
+        </aside>
+        <main className="h-full min-h-0 overflow-hidden">
+          <MissionControlPanel panels={DEFAULT_PANEL_SLOTS} />
+        </main>
+      </div>
+    </section>
+  );
+}

apps/web/src/components/mission-control/MissionControlPanel.tsx

@@ -0,0 +1,17 @@
+"use client";
+
+import { OrchestratorPanel } from "@/components/mission-control/OrchestratorPanel";
+
+interface MissionControlPanelProps {
+  panels: readonly string[];
+}
+
+export function MissionControlPanel({ panels }: MissionControlPanelProps): React.JSX.Element {
+  return (
+    <div className="grid h-full min-h-0 auto-rows-fr grid-cols-1 gap-4 overflow-y-auto pr-1 md:grid-cols-2">
+      {panels.map((panelId) => (
+        <OrchestratorPanel key={panelId} />
+      ))}
+    </div>
+  );
+}

apps/web/src/components/mission-control/OrchestratorPanel.tsx

@@ -0,0 +1,16 @@
+"use client";
+
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+
+export function OrchestratorPanel(): React.JSX.Element {
+  return (
+    <Card className="flex h-full min-h-[220px] flex-col">
+      <CardHeader>
+        <CardTitle className="text-base">Orchestrator Panel</CardTitle>
+      </CardHeader>
+      <CardContent className="flex flex-1 items-center justify-center text-sm text-muted-foreground">
+        Select an agent
+      </CardContent>
+    </Card>
+  );
+}

apps/web/src/hooks/useMissionControl.ts

@@ -0,0 +1,10 @@
+interface UseMissionControlResult {
+  sessions: [];
+  loading: boolean;
+  error: null;
+}
+
+// Stub — will be wired in P2-002
+export function useMissionControl(): UseMissionControlResult {
+  return { sessions: [], loading: false, error: null };
+}