diff --git a/packages/api/src/__tests__/assistant-tools-dispo-staged-resolution.test.ts b/packages/api/src/__tests__/assistant-tools-dispo-staged-resolution.test.ts
new file mode 100644
index 0000000..f88e818
--- /dev/null
+++ b/packages/api/src/__tests__/assistant-tools-dispo-staged-resolution.test.ts
@@ -0,0 +1,82 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import {
+  DispoStagedRecordType,
+  StagedRecordStatus,
+} from "@capakraken/db";
+import { SystemRole } from "@capakraken/shared";
+
+vi.mock("@capakraken/application", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("@capakraken/application")>();
+  return {
+    ...actual,
+    approveEstimateVersion: vi.fn(),
+    cloneEstimate: vi.fn(),
+    commitDispoImportBatch: vi.fn(),
+    countPlanningEntries: vi.fn().mockResolvedValue({ countsByRoleId: new Map() }),
+    createEstimateExport: vi.fn(),
+    createEstimatePlanningHandoff: vi.fn(),
+    createEstimateRevision: vi.fn(),
+    assessDispoImportReadiness: vi.fn(),
+    loadResourceDailyAvailabilityContexts: vi.fn().mockResolvedValue(new Map()),
+    getDashboardDemand: vi.fn().mockResolvedValue([]),
+    getDashboardBudgetForecast: vi.fn().mockResolvedValue([]),
+    getDashboardOverview: vi.fn(),
+    getDashboardSkillGapSummary: vi.fn().mockResolvedValue({
+      roleGaps: [],
+      totalOpenPositions: 0,
+      skillSupplyTop10: [],
+      resourcesByRole: [],
+    }),
+    getDashboardProjectHealth: vi.fn().mockResolvedValue([]),
+    getDashboardPeakTimes: vi.fn().mockResolvedValue([]),
+    getDashboardTopValueResources: vi.fn().mockResolvedValue([]),
+    getEstimateById: vi.fn(),
+    listAssignmentBookings: vi.fn().mockResolvedValue([]),
+    stageDispoImportBatch: vi.fn(),
+    submitEstimateVersion: vi.fn(),
+    updateEstimateDraft: vi.fn(),
+  };
+});
+
+import { executeTool } from "../router/assistant-tools.js";
+import { createToolContext } from "./assistant-tools-dispo-test-helpers.js";
+
+describe("assistant dispo staged record resolution tools", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("resolves staged dispo records through the real router path", async () => {
+    const update = vi.fn().mockResolvedValue({
+      id: "sa_1",
+      status: StagedRecordStatus.APPROVED,
+    });
+    const ctx = createToolContext(
+      {
+        stagedAssignment: {
+          update,
+        },
+      },
+      { userRole: SystemRole.ADMIN },
+    );
+
+    const result = await executeTool(
+      "resolve_dispo_staged_record",
+      JSON.stringify({
+        id: "sa_1",
+        recordType: DispoStagedRecordType.ASSIGNMENT,
+        action: "APPROVE",
+      }),
+      ctx,
+    );
+
+    expect(update).toHaveBeenCalledWith({
+      where: { id: "sa_1" },
+      data: { status: StagedRecordStatus.APPROVED },
+    });
+    expect(JSON.parse(result.content)).toEqual({
+      id: "sa_1",
+      status: StagedRecordStatus.APPROVED,
+    });
+  });
+});