apps/api/src/app.module.ts

@@ -45,6 +45,7 @@ import { PersonalitiesModule } from "./personalities/personalities.module";
 import { WorkspacesModule } from "./workspaces/workspaces.module";
 import { AdminModule } from "./admin/admin.module";
 import { TeamsModule } from "./teams/teams.module";
+import { ImportModule } from "./import/import.module";
 import { RlsContextInterceptor } from "./common/interceptors/rls-context.interceptor";
 
 @Module({
@@ -113,6 +114,7 @@ import { RlsContextInterceptor } from "./common/interceptors/rls-context.interce
     WorkspacesModule,
     AdminModule,
     TeamsModule,
+    ImportModule,
   ],
   controllers: [AppController, CsrfController],
   providers: [

apps/api/src/import/dto/import-project.dto.ts

@@ -0,0 +1,89 @@
+import { IsNumber, IsOptional, IsString, MaxLength, MinLength } from "class-validator";
+
+/**
+ * DTO for a single jarvis-brain project record.
+ * This matches the project object shape consumed by scripts/migrate-brain.ts.
+ */
+export class ImportProjectDto {
+  @IsString({ message: "id must be a string" })
+  @MinLength(1, { message: "id must not be empty" })
+  @MaxLength(255, { message: "id must not exceed 255 characters" })
+  id!: string;
+
+  @IsString({ message: "name must be a string" })
+  @MinLength(1, { message: "name must not be empty" })
+  @MaxLength(255, { message: "name must not exceed 255 characters" })
+  name!: string;
+
+  @IsOptional()
+  @IsString({ message: "description must be a string" })
+  description?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "domain must be a string" })
+  domain?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "status must be a string" })
+  status?: string | null;
+
+  // jarvis-brain project priority can be a number, string, or null
+  @IsOptional()
+  priority?: number | string | null;
+
+  @IsOptional()
+  @IsNumber({}, { message: "progress must be a number" })
+  progress?: number | null;
+
+  @IsOptional()
+  @IsString({ message: "repo must be a string" })
+  repo?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "branch must be a string" })
+  branch?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "current_milestone must be a string" })
+  current_milestone?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "next_milestone must be a string" })
+  next_milestone?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "blocker must be a string" })
+  blocker?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "owner must be a string" })
+  owner?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "docs_path must be a string" })
+  docs_path?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "created must be a string" })
+  created?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "updated must be a string" })
+  updated?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "target_date must be a string" })
+  target_date?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "notes must be a string" })
+  notes?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "notes_nontechnical must be a string" })
+  notes_nontechnical?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "parent must be a string" })
+  parent?: string | null;
+}

apps/api/src/import/dto/import-response.dto.ts

@@ -0,0 +1,5 @@
+export interface ImportResponseDto {
+  imported: number;
+  skipped: number;
+  errors: string[];
+}

apps/api/src/import/dto/import-task.dto.ts

@@ -0,0 +1,76 @@
+import { IsArray, IsNumber, IsOptional, IsString, MaxLength, MinLength } from "class-validator";
+
+/**
+ * DTO for a single jarvis-brain task record.
+ * This matches the task object shape consumed by scripts/migrate-brain.ts.
+ */
+export class ImportTaskDto {
+  @IsString({ message: "id must be a string" })
+  @MinLength(1, { message: "id must not be empty" })
+  @MaxLength(255, { message: "id must not exceed 255 characters" })
+  id!: string;
+
+  @IsString({ message: "title must be a string" })
+  @MinLength(1, { message: "title must not be empty" })
+  @MaxLength(255, { message: "title must not exceed 255 characters" })
+  title!: string;
+
+  @IsOptional()
+  @IsString({ message: "domain must be a string" })
+  domain?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "project must be a string" })
+  project?: string | null;
+
+  @IsOptional()
+  @IsArray({ message: "related must be an array" })
+  @IsString({ each: true, message: "related items must be strings" })
+  related?: string[];
+
+  @IsOptional()
+  @IsString({ message: "priority must be a string" })
+  priority?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "status must be a string" })
+  status?: string | null;
+
+  @IsOptional()
+  @IsNumber({}, { message: "progress must be a number" })
+  progress?: number | null;
+
+  @IsOptional()
+  @IsString({ message: "due must be a string" })
+  due?: string | null;
+
+  @IsOptional()
+  @IsArray({ message: "blocks must be an array" })
+  @IsString({ each: true, message: "blocks items must be strings" })
+  blocks?: string[];
+
+  @IsOptional()
+  @IsArray({ message: "blocked_by must be an array" })
+  @IsString({ each: true, message: "blocked_by items must be strings" })
+  blocked_by?: string[];
+
+  @IsOptional()
+  @IsString({ message: "assignee must be a string" })
+  assignee?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "created must be a string" })
+  created?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "updated must be a string" })
+  updated?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "notes must be a string" })
+  notes?: string | null;
+
+  @IsOptional()
+  @IsString({ message: "notes_nontechnical must be a string" })
+  notes_nontechnical?: string | null;
+}

apps/api/src/import/dto/index.ts

@@ -0,0 +1,3 @@
+export { ImportTaskDto } from "./import-task.dto";
+export { ImportProjectDto } from "./import-project.dto";
+export type { ImportResponseDto } from "./import-response.dto";

apps/api/src/import/import.controller.ts

@@ -0,0 +1,33 @@
+import { Body, Controller, ParseArrayPipe, Post, UseGuards } from "@nestjs/common";
+import type { AuthUser } from "@mosaic/shared";
+import { CurrentUser } from "../auth/decorators/current-user.decorator";
+import { AdminGuard } from "../auth/guards/admin.guard";
+import { AuthGuard } from "../auth/guards/auth.guard";
+import { Workspace } from "../common/decorators";
+import { WorkspaceGuard } from "../common/guards";
+import { ImportProjectDto, type ImportResponseDto, ImportTaskDto } from "./dto";
+import { ImportService } from "./import.service";
+
+@Controller("import")
+@UseGuards(AuthGuard, WorkspaceGuard, AdminGuard)
+export class ImportController {
+  constructor(private readonly importService: ImportService) {}
+
+  @Post("tasks")
+  async importTasks(
+    @Body(new ParseArrayPipe({ items: ImportTaskDto })) taskPayload: ImportTaskDto[],
+    @Workspace() workspaceId: string,
+    @CurrentUser() user: AuthUser
+  ): Promise<ImportResponseDto> {
+    return this.importService.importTasks(workspaceId, user.id, taskPayload);
+  }
+
+  @Post("projects")
+  async importProjects(
+    @Body(new ParseArrayPipe({ items: ImportProjectDto })) projectPayload: ImportProjectDto[],
+    @Workspace() workspaceId: string,
+    @CurrentUser() user: AuthUser
+  ): Promise<ImportResponseDto> {
+    return this.importService.importProjects(workspaceId, user.id, projectPayload);
+  }
+}

apps/api/src/import/import.module.ts

@@ -0,0 +1,13 @@
+import { Module } from "@nestjs/common";
+import { AuthModule } from "../auth/auth.module";
+import { PrismaModule } from "../prisma/prisma.module";
+import { ImportController } from "./import.controller";
+import { ImportService } from "./import.service";
+
+@Module({
+  imports: [PrismaModule, AuthModule],
+  controllers: [ImportController],
+  providers: [ImportService],
+  exports: [ImportService],
+})
+export class ImportModule {}

apps/api/src/import/import.service.spec.ts

@@ -0,0 +1,251 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { Test, TestingModule } from "@nestjs/testing";
+import { ProjectStatus, TaskPriority, TaskStatus } from "@prisma/client";
+import { ImportService } from "./import.service";
+import { PrismaService } from "../prisma/prisma.service";
+
+describe("ImportService", () => {
+  let service: ImportService;
+
+  const mockPrismaService = {
+    withWorkspaceContext: vi.fn(),
+    domain: {
+      findUnique: vi.fn(),
+      create: vi.fn(),
+    },
+    project: {
+      findFirst: vi.fn(),
+      create: vi.fn(),
+    },
+    task: {
+      findFirst: vi.fn(),
+      create: vi.fn(),
+    },
+  };
+
+  const workspaceId = "550e8400-e29b-41d4-a716-446655440001";
+  const userId = "550e8400-e29b-41d4-a716-446655440002";
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        ImportService,
+        {
+          provide: PrismaService,
+          useValue: mockPrismaService,
+        },
+      ],
+    }).compile();
+
+    service = module.get<ImportService>(ImportService);
+    vi.clearAllMocks();
+
+    mockPrismaService.withWorkspaceContext.mockImplementation(
+      async (_userId: string, _workspaceId: string, fn: (client: unknown) => Promise<unknown>) => {
+        return fn(mockPrismaService);
+      }
+    );
+  });
+
+  it("should be defined", () => {
+    expect(service).toBeDefined();
+  });
+
+  describe("importTasks", () => {
+    it("maps status/priority/domain and imports a task", async () => {
+      mockPrismaService.task.findFirst.mockResolvedValue(null);
+      mockPrismaService.domain.findUnique.mockResolvedValue(null);
+      mockPrismaService.domain.create.mockResolvedValue({ id: "domain-id" });
+      mockPrismaService.project.findFirst.mockResolvedValue(null);
+      mockPrismaService.task.create.mockResolvedValue({ id: "task-id" });
+
+      const result = await service.importTasks(workspaceId, userId, [
+        {
+          id: "task-1",
+          title: "Import me",
+          domain: "Platform Ops",
+          status: "in-progress",
+          priority: "critical",
+          project: null,
+          related: [],
+          blocks: [],
+          blocked_by: [],
+          progress: 42,
+          due: "2026-03-15",
+          created: "2026-03-01T10:00:00.000Z",
+          updated: "2026-03-05T12:00:00.000Z",
+          assignee: null,
+          notes: "notes",
+          notes_nontechnical: "non technical",
+        },
+      ]);
+
+      expect(result).toEqual({ imported: 1, skipped: 0, errors: [] });
+      expect(mockPrismaService.task.create).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            title: "Import me",
+            status: TaskStatus.IN_PROGRESS,
+            priority: TaskPriority.HIGH,
+            domainId: "domain-id",
+          }),
+        })
+      );
+    });
+
+    it("skips existing task by brainId", async () => {
+      mockPrismaService.task.findFirst.mockResolvedValue({ id: "existing-task-id" });
+
+      const result = await service.importTasks(workspaceId, userId, [
+        {
+          id: "task-1",
+          title: "Existing",
+          domain: null,
+          status: "pending",
+          priority: "medium",
+          project: null,
+          related: [],
+          blocks: [],
+          blocked_by: [],
+          progress: null,
+          due: null,
+          created: null,
+          updated: null,
+          assignee: null,
+          notes: null,
+          notes_nontechnical: null,
+        },
+      ]);
+
+      expect(result.imported).toBe(0);
+      expect(result.skipped).toBe(1);
+      expect(mockPrismaService.task.create).not.toHaveBeenCalled();
+    });
+
+    it("collects mapping/missing-project errors while importing", async () => {
+      mockPrismaService.task.findFirst.mockResolvedValue(null);
+      mockPrismaService.project.findFirst.mockResolvedValue(null);
+      mockPrismaService.task.create.mockResolvedValue({ id: "task-id" });
+
+      const result = await service.importTasks(workspaceId, userId, [
+        {
+          id: "task-1",
+          title: "Needs project",
+          domain: null,
+          status: "mystery-status",
+          priority: "mystery-priority",
+          project: "brain-project-1",
+          related: [],
+          blocks: [],
+          blocked_by: [],
+          progress: null,
+          due: null,
+          created: null,
+          updated: null,
+          assignee: null,
+          notes: null,
+          notes_nontechnical: null,
+        },
+      ]);
+
+      expect(result.imported).toBe(1);
+      expect(result.errors).toEqual(
+        expect.arrayContaining([
+          expect.stringContaining('Unknown task status "mystery-status"'),
+          expect.stringContaining('Unknown task priority "mystery-priority"'),
+          expect.stringContaining('referenced project "brain-project-1" not found'),
+        ])
+      );
+      expect(mockPrismaService.task.create).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            status: TaskStatus.NOT_STARTED,
+            priority: TaskPriority.MEDIUM,
+            projectId: null,
+          }),
+        })
+      );
+    });
+  });
+
+  describe("importProjects", () => {
+    it("maps status/domain and imports a project", async () => {
+      mockPrismaService.project.findFirst.mockResolvedValue(null);
+      mockPrismaService.domain.findUnique.mockResolvedValue(null);
+      mockPrismaService.domain.create.mockResolvedValue({ id: "domain-id" });
+      mockPrismaService.project.create.mockResolvedValue({ id: "project-id" });
+
+      const result = await service.importProjects(workspaceId, userId, [
+        {
+          id: "project-1",
+          name: "Project One",
+          description: "desc",
+          domain: "Backend",
+          status: "in-progress",
+          priority: "high",
+          progress: 50,
+          repo: "git@example.com/repo",
+          branch: "main",
+          current_milestone: "MS21",
+          next_milestone: "MS22",
+          blocker: null,
+          owner: "owner",
+          docs_path: "docs/PRD.md",
+          created: "2026-03-01",
+          updated: "2026-03-05",
+          target_date: "2026-04-01",
+          notes: "notes",
+          notes_nontechnical: "non tech",
+          parent: null,
+        },
+      ]);
+
+      expect(result).toEqual({ imported: 1, skipped: 0, errors: [] });
+      expect(mockPrismaService.project.create).toHaveBeenCalledWith(
+        expect.objectContaining({
+          data: expect.objectContaining({
+            name: "Project One",
+            status: ProjectStatus.ACTIVE,
+            domainId: "domain-id",
+          }),
+        })
+      );
+    });
+
+    it("captures create failures as errors", async () => {
+      mockPrismaService.project.findFirst.mockResolvedValue(null);
+      mockPrismaService.project.create.mockRejectedValue(new Error("db failed"));
+
+      const result = await service.importProjects(workspaceId, userId, [
+        {
+          id: "project-1",
+          name: "Project One",
+          description: null,
+          domain: null,
+          status: "planning",
+          priority: null,
+          progress: null,
+          repo: null,
+          branch: null,
+          current_milestone: null,
+          next_milestone: null,
+          blocker: null,
+          owner: null,
+          docs_path: null,
+          created: null,
+          updated: null,
+          target_date: null,
+          notes: null,
+          notes_nontechnical: null,
+          parent: null,
+        },
+      ]);
+
+      expect(result.imported).toBe(0);
+      expect(result.skipped).toBe(1);
+      expect(result.errors).toEqual([
+        expect.stringContaining("project project-1: failed to import: db failed"),
+      ]);
+    });
+  });
+});

apps/api/src/import/import.service.ts

@@ -0,0 +1,496 @@
+import { Injectable } from "@nestjs/common";
+import { Prisma, PrismaClient, ProjectStatus, TaskPriority, TaskStatus } from "@prisma/client";
+import { PrismaService } from "../prisma/prisma.service";
+import type { ImportProjectDto, ImportResponseDto, ImportTaskDto } from "./dto";
+
+interface TaskStatusMapping {
+  status: TaskStatus;
+  issue: string | null;
+}
+
+interface TaskPriorityMapping {
+  priority: TaskPriority;
+  issue: string | null;
+}
+
+interface ProjectStatusMapping {
+  status: ProjectStatus;
+  issue: string | null;
+}
+
+@Injectable()
+export class ImportService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async importTasks(
+    workspaceId: string,
+    userId: string,
+    taskPayload: ImportTaskDto[]
+  ): Promise<ImportResponseDto> {
+    const errors: string[] = [];
+    let imported = 0;
+    let skipped = 0;
+
+    const importTimestamp = new Date().toISOString();
+    const seenBrainTaskIds = new Set<string>();
+    const domainIdBySlug = new Map<string, string>();
+    const projectIdByBrainId = new Map<string, string | null>();
+
+    await this.prisma.withWorkspaceContext(userId, workspaceId, async (tx: PrismaClient) => {
+      for (const [index, task] of taskPayload.entries()) {
+        const brainId = task.id.trim();
+
+        if (seenBrainTaskIds.has(brainId)) {
+          skipped += 1;
+          errors.push(`task ${brainId}: duplicate item in request body`);
+          continue;
+        }
+        seenBrainTaskIds.add(brainId);
+
+        try {
+          const existingTask = await tx.task.findFirst({
+            where: {
+              workspaceId,
+              metadata: {
+                path: ["brainId"],
+                equals: brainId,
+              },
+            },
+            select: { id: true },
+          });
+
+          if (existingTask) {
+            skipped += 1;
+            continue;
+          }
+
+          const mappedStatus = this.mapTaskStatus(task.status ?? null);
+          if (mappedStatus.issue) {
+            errors.push(`task ${brainId}: ${mappedStatus.issue}`);
+          }
+
+          const mappedPriority = this.mapTaskPriority(task.priority ?? null);
+          if (mappedPriority.issue) {
+            errors.push(`task ${brainId}: ${mappedPriority.issue}`);
+          }
+
+          const projectBrainId = task.project?.trim() ? task.project.trim() : null;
+          const projectId = await this.resolveProjectId(
+            tx,
+            workspaceId,
+            projectBrainId,
+            projectIdByBrainId,
+            brainId,
+            errors
+          );
+
+          const domainId = await this.resolveDomainId(
+            tx,
+            workspaceId,
+            task.domain ?? null,
+            importTimestamp,
+            domainIdBySlug
+          );
+
+          const createdAt =
+            this.normalizeDate(task.created ?? null, `task ${brainId}.created`, errors) ??
+            new Date();
+          const updatedAt =
+            this.normalizeDate(task.updated ?? null, `task ${brainId}.updated`, errors) ??
+            createdAt;
+          const dueDate = this.normalizeDate(task.due ?? null, `task ${brainId}.due`, errors);
+          const completedAt = mappedStatus.status === TaskStatus.COMPLETED ? updatedAt : null;
+
+          const metadata = this.asJsonValue({
+            source: "jarvis-brain",
+            brainId,
+            brainDomain: task.domain ?? null,
+            brainProjectId: projectBrainId,
+            rawStatus: task.status ?? null,
+            rawPriority: task.priority ?? null,
+            related: task.related ?? [],
+            blocks: task.blocks ?? [],
+            blockedBy: task.blocked_by ?? [],
+            assignee: task.assignee ?? null,
+            progress: task.progress ?? null,
+            notes: task.notes ?? null,
+            notesNonTechnical: task.notes_nontechnical ?? null,
+            importedAt: importTimestamp,
+          });
+
+          await tx.task.create({
+            data: {
+              workspaceId,
+              title: task.title,
+              description: task.notes ?? null,
+              status: mappedStatus.status,
+              priority: mappedPriority.priority,
+              dueDate,
+              creatorId: userId,
+              projectId,
+              domainId,
+              metadata,
+              createdAt,
+              updatedAt,
+              completedAt,
+            },
+          });
+
+          imported += 1;
+        } catch (error) {
+          skipped += 1;
+          errors.push(
+            `task ${brainId || `index-${String(index)}`}: failed to import: ${this.getErrorMessage(error)}`
+          );
+        }
+      }
+    });
+
+    return {
+      imported,
+      skipped,
+      errors,
+    };
+  }
+
+  async importProjects(
+    workspaceId: string,
+    userId: string,
+    projectPayload: ImportProjectDto[]
+  ): Promise<ImportResponseDto> {
+    const errors: string[] = [];
+    let imported = 0;
+    let skipped = 0;
+
+    const importTimestamp = new Date().toISOString();
+    const seenBrainProjectIds = new Set<string>();
+    const domainIdBySlug = new Map<string, string>();
+
+    await this.prisma.withWorkspaceContext(userId, workspaceId, async (tx: PrismaClient) => {
+      for (const [index, project] of projectPayload.entries()) {
+        const brainId = project.id.trim();
+
+        if (seenBrainProjectIds.has(brainId)) {
+          skipped += 1;
+          errors.push(`project ${brainId}: duplicate item in request body`);
+          continue;
+        }
+        seenBrainProjectIds.add(brainId);
+
+        try {
+          const existingProject = await tx.project.findFirst({
+            where: {
+              workspaceId,
+              metadata: {
+                path: ["brainId"],
+                equals: brainId,
+              },
+            },
+            select: { id: true },
+          });
+
+          if (existingProject) {
+            skipped += 1;
+            continue;
+          }
+
+          const mappedStatus = this.mapProjectStatus(project.status ?? null);
+          if (mappedStatus.issue) {
+            errors.push(`project ${brainId}: ${mappedStatus.issue}`);
+          }
+
+          const domainId = await this.resolveDomainId(
+            tx,
+            workspaceId,
+            project.domain ?? null,
+            importTimestamp,
+            domainIdBySlug
+          );
+
+          const createdAt =
+            this.normalizeDate(project.created ?? null, `project ${brainId}.created`, errors) ??
+            new Date();
+          const updatedAt =
+            this.normalizeDate(project.updated ?? null, `project ${brainId}.updated`, errors) ??
+            createdAt;
+          const startDate = this.normalizeDate(
+            project.created ?? null,
+            `project ${brainId}.startDate`,
+            errors
+          );
+          const endDate = this.normalizeDate(
+            project.target_date ?? null,
+            `project ${brainId}.target_date`,
+            errors
+          );
+
+          const metadata = this.asJsonValue({
+            source: "jarvis-brain",
+            brainId,
+            brainDomain: project.domain ?? null,
+            rawStatus: project.status ?? null,
+            rawPriority: project.priority ?? null,
+            progress: project.progress ?? null,
+            repo: project.repo ?? null,
+            branch: project.branch ?? null,
+            currentMilestone: project.current_milestone ?? null,
+            nextMilestone: project.next_milestone ?? null,
+            blocker: project.blocker ?? null,
+            owner: project.owner ?? null,
+            docsPath: project.docs_path ?? null,
+            targetDate: project.target_date ?? null,
+            notes: project.notes ?? null,
+            notesNonTechnical: project.notes_nontechnical ?? null,
+            parent: project.parent ?? null,
+            importedAt: importTimestamp,
+          });
+
+          await tx.project.create({
+            data: {
+              workspaceId,
+              name: project.name,
+              description: project.description ?? null,
+              status: mappedStatus.status,
+              startDate,
+              endDate,
+              creatorId: userId,
+              domainId,
+              metadata,
+              createdAt,
+              updatedAt,
+            },
+          });
+
+          imported += 1;
+        } catch (error) {
+          skipped += 1;
+          errors.push(
+            `project ${brainId || `index-${String(index)}`}: failed to import: ${this.getErrorMessage(error)}`
+          );
+        }
+      }
+    });
+
+    return {
+      imported,
+      skipped,
+      errors,
+    };
+  }
+
+  private async resolveProjectId(
+    tx: PrismaClient,
+    workspaceId: string,
+    projectBrainId: string | null,
+    projectIdByBrainId: Map<string, string | null>,
+    taskBrainId: string,
+    errors: string[]
+  ): Promise<string | null> {
+    if (!projectBrainId) {
+      return null;
+    }
+
+    if (projectIdByBrainId.has(projectBrainId)) {
+      return projectIdByBrainId.get(projectBrainId) ?? null;
+    }
+
+    const existingProject = await tx.project.findFirst({
+      where: {
+        workspaceId,
+        metadata: {
+          path: ["brainId"],
+          equals: projectBrainId,
+        },
+      },
+      select: { id: true },
+    });
+
+    if (!existingProject) {
+      projectIdByBrainId.set(projectBrainId, null);
+      errors.push(`task ${taskBrainId}: referenced project "${projectBrainId}" not found`);
+      return null;
+    }
+
+    projectIdByBrainId.set(projectBrainId, existingProject.id);
+    return existingProject.id;
+  }
+
+  private async resolveDomainId(
+    tx: PrismaClient,
+    workspaceId: string,
+    rawDomain: string | null,
+    importTimestamp: string,
+    domainIdBySlug: Map<string, string>
+  ): Promise<string | null> {
+    const domainSlug = this.normalizeDomain(rawDomain);
+    if (!domainSlug) {
+      return null;
+    }
+
+    const cachedId = domainIdBySlug.get(domainSlug);
+    if (cachedId) {
+      return cachedId;
+    }
+
+    const existingDomain = await tx.domain.findUnique({
+      where: {
+        workspaceId_slug: {
+          workspaceId,
+          slug: domainSlug,
+        },
+      },
+      select: { id: true },
+    });
+
+    if (existingDomain) {
+      domainIdBySlug.set(domainSlug, existingDomain.id);
+      return existingDomain.id;
+    }
+
+    const trimmedDomainName = rawDomain?.trim();
+    const domainName =
+      trimmedDomainName && trimmedDomainName.length > 0 ? trimmedDomainName : domainSlug;
+    const createdDomain = await tx.domain.create({
+      data: {
+        workspaceId,
+        slug: domainSlug,
+        name: domainName,
+        metadata: this.asJsonValue({
+          source: "jarvis-brain",
+          brainId: domainName,
+          sourceValues: [domainName],
+          importedAt: importTimestamp,
+        }),
+      },
+      select: { id: true },
+    });
+
+    domainIdBySlug.set(domainSlug, createdDomain.id);
+    return createdDomain.id;
+  }
+
+  private normalizeKey(value: string | null | undefined): string {
+    return value?.trim().toLowerCase() ?? "";
+  }
+
+  private mapTaskStatus(rawStatus: string | null): TaskStatusMapping {
+    const statusKey = this.normalizeKey(rawStatus);
+
+    switch (statusKey) {
+      case "done":
+        return { status: TaskStatus.COMPLETED, issue: null };
+      case "in-progress":
+        return { status: TaskStatus.IN_PROGRESS, issue: null };
+      case "backlog":
+      case "pending":
+      case "scheduled":
+      case "not-started":
+      case "planned":
+        return { status: TaskStatus.NOT_STARTED, issue: null };
+      case "blocked":
+      case "on-hold":
+        return { status: TaskStatus.PAUSED, issue: null };
+      case "cancelled":
+        return { status: TaskStatus.ARCHIVED, issue: null };
+      default:
+        return {
+          status: TaskStatus.NOT_STARTED,
+          issue: `Unknown task status "${rawStatus ?? "null"}" mapped to NOT_STARTED`,
+        };
+    }
+  }
+
+  private mapTaskPriority(rawPriority: string | null): TaskPriorityMapping {
+    const priorityKey = this.normalizeKey(rawPriority);
+
+    switch (priorityKey) {
+      case "critical":
+      case "high":
+        return { priority: TaskPriority.HIGH, issue: null };
+      case "medium":
+        return { priority: TaskPriority.MEDIUM, issue: null };
+      case "low":
+        return { priority: TaskPriority.LOW, issue: null };
+      default:
+        return {
+          priority: TaskPriority.MEDIUM,
+          issue: `Unknown task priority "${rawPriority ?? "null"}" mapped to MEDIUM`,
+        };
+    }
+  }
+
+  private mapProjectStatus(rawStatus: string | null): ProjectStatusMapping {
+    const statusKey = this.normalizeKey(rawStatus);
+
+    switch (statusKey) {
+      case "active":
+      case "in-progress":
+        return { status: ProjectStatus.ACTIVE, issue: null };
+      case "backlog":
+      case "planning":
+        return { status: ProjectStatus.PLANNING, issue: null };
+      case "paused":
+      case "blocked":
+        return { status: ProjectStatus.PAUSED, issue: null };
+      case "archived":
+      case "maintenance":
+        return { status: ProjectStatus.ARCHIVED, issue: null };
+      default:
+        return {
+          status: ProjectStatus.PLANNING,
+          issue: `Unknown project status "${rawStatus ?? "null"}" mapped to PLANNING`,
+        };
+    }
+  }
+
+  private normalizeDomain(rawDomain: string | null | undefined): string | null {
+    if (!rawDomain) {
+      return null;
+    }
+
+    const trimmed = rawDomain.trim();
+    if (trimmed.length === 0) {
+      return null;
+    }
+
+    const slug = trimmed
+      .toLowerCase()
+      .replace(/[^a-z0-9]+/g, "-")
+      .replace(/^-+|-+$/g, "");
+
+    return slug.length > 0 ? slug : null;
+  }
+
+  private normalizeDate(rawValue: string | null, context: string, errors: string[]): Date | null {
+    if (!rawValue) {
+      return null;
+    }
+
+    const trimmed = rawValue.trim();
+    if (trimmed.length === 0) {
+      return null;
+    }
+
+    const value = /^\d{4}-\d{2}-\d{2}$/.test(trimmed) ? `${trimmed}T00:00:00.000Z` : trimmed;
+    const parsedDate = new Date(value);
+
+    if (Number.isNaN(parsedDate.getTime())) {
+      errors.push(`${context}: invalid date "${rawValue}"`);
+      return null;
+    }
+
+    return parsedDate;
+  }
+
+  private asJsonValue(value: Record<string, unknown>): Prisma.InputJsonValue {
+    return value as Prisma.InputJsonValue;
+  }
+
+  private getErrorMessage(error: unknown): string {
+    if (error instanceof Error) {
+      return error.message;
+    }
+
+    return String(error);
+  }
+}