diff --git a/packages/api/src/__tests__/timeline-project-context-procedure-support.test.ts b/packages/api/src/__tests__/timeline-project-context-procedure-support.test.ts
new file mode 100644
index 0000000..51a39a4
--- /dev/null
+++ b/packages/api/src/__tests__/timeline-project-context-procedure-support.test.ts
@@ -0,0 +1,140 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("../lib/anonymization.js", () => ({
+  getAnonymizationDirectory: vi.fn(),
+}));
+
+vi.mock("../router/timeline-project-load-support.js", () => ({
+  loadTimelineProjectContext: vi.fn(),
+}));
+
+vi.mock("../router/timeline-project-context-support.js", () => ({
+  loadTimelineProjectContextDetailArtifacts: vi.fn(),
+}));
+
+vi.mock("../router/timeline-project-context-response-support.js", () => ({
+  buildTimelineProjectContextResponse: vi.fn(),
+  buildTimelineProjectContextDetailResponse: vi.fn(),
+}));
+
+import { getAnonymizationDirectory } from "../lib/anonymization.js";
+import {
+  loadTimelineProjectContextDetailArtifacts,
+} from "../router/timeline-project-context-support.js";
+import {
+  buildTimelineProjectContextDetailResponse,
+  buildTimelineProjectContextResponse,
+} from "../router/timeline-project-context-response-support.js";
+import { loadTimelineProjectContext } from "../router/timeline-project-load-support.js";
+import {
+  readTimelineProjectContextDetailResponse,
+  readTimelineProjectContextResponse,
+} from "../router/timeline-project-context-procedure-support.js";
+
+const getAnonymizationDirectoryMock = vi.mocked(getAnonymizationDirectory);
+const loadTimelineProjectContextMock = vi.mocked(loadTimelineProjectContext);
+const loadTimelineProjectContextDetailArtifactsMock = vi.mocked(loadTimelineProjectContextDetailArtifacts);
+const buildTimelineProjectContextResponseMock = vi.mocked(buildTimelineProjectContextResponse);
+const buildTimelineProjectContextDetailResponseMock = vi.mocked(buildTimelineProjectContextDetailResponse);
+
+describe("timeline project context procedure support", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("builds project context responses from loaded context and anonymization directory", async () => {
+    loadTimelineProjectContextMock.mockResolvedValueOnce({
+      project: { id: "project_1" },
+      allocations: [{ id: "allocation_1" }],
+      demands: [{ id: "demand_1" }],
+      assignments: [{ id: "assignment_1" }],
+      allResourceAllocations: [{ id: "booking_1" }],
+      resourceIds: ["resource_1"],
+    } as never);
+    getAnonymizationDirectoryMock.mockResolvedValueOnce({ enabled: true } as never);
+    buildTimelineProjectContextResponseMock.mockReturnValueOnce({ ok: true } as never);
+
+    await expect(readTimelineProjectContextResponse({} as never, "project_1")).resolves.toEqual({
+      ok: true,
+    });
+
+    expect(loadTimelineProjectContextMock).toHaveBeenCalledWith({}, "project_1");
+    expect(getAnonymizationDirectoryMock).toHaveBeenCalledWith({});
+    expect(buildTimelineProjectContextResponseMock).toHaveBeenCalledWith({
+      project: { id: "project_1" },
+      allocations: [{ id: "allocation_1" }],
+      demands: [{ id: "demand_1" }],
+      assignments: [{ id: "assignment_1" }],
+      allResourceAllocations: [{ id: "booking_1" }],
+      resourceIds: ["resource_1"],
+      directory: { enabled: true },
+    });
+  });
+
+  it("builds project context detail responses from loaded artifacts", async () => {
+    loadTimelineProjectContextMock.mockResolvedValueOnce({
+      project: {
+        id: "project_1",
+        startDate: new Date("2026-04-01T00:00:00.000Z"),
+        endDate: new Date("2026-04-10T00:00:00.000Z"),
+      },
+      allocations: [{ id: "allocation_1" }],
+      demands: [{ id: "demand_1", startDate: new Date("2026-04-01T00:00:00.000Z") }],
+      assignments: [{ id: "assignment_1", startDate: new Date("2026-04-02T00:00:00.000Z") }],
+      allResourceAllocations: [{ id: "booking_1" }],
+      resourceIds: ["resource_1"],
+    } as never);
+    getAnonymizationDirectoryMock.mockResolvedValueOnce({ enabled: true } as never);
+    loadTimelineProjectContextDetailArtifactsMock.mockResolvedValueOnce({
+      period: {
+        startDate: new Date("2026-04-01T00:00:00.000Z"),
+        endDate: new Date("2026-04-10T00:00:00.000Z"),
+      },
+      holidayOverlays: [{ id: "overlay_1" }],
+      assignmentConflicts: [{ assignmentId: "assignment_1" }],
+    } as never);
+    buildTimelineProjectContextDetailResponseMock.mockReturnValueOnce({ detail: true } as never);
+
+    await expect(
+      readTimelineProjectContextDetailResponse({} as never, {
+        projectId: "project_1",
+        startDate: "2026-04-03",
+        endDate: "2026-04-12",
+        durationDays: 10,
+      }),
+    ).resolves.toEqual({ detail: true });
+
+    expect(loadTimelineProjectContextDetailArtifactsMock).toHaveBeenCalledWith({}, {
+      projectId: "project_1",
+      requestedStartDate: "2026-04-03",
+      requestedEndDate: "2026-04-12",
+      durationDays: 10,
+      projectStartDate: new Date("2026-04-01T00:00:00.000Z"),
+      projectEndDate: new Date("2026-04-10T00:00:00.000Z"),
+      firstAssignmentStartDate: new Date("2026-04-02T00:00:00.000Z"),
+      firstDemandStartDate: new Date("2026-04-01T00:00:00.000Z"),
+      assignments: [{ id: "assignment_1", startDate: new Date("2026-04-02T00:00:00.000Z") }],
+      allResourceAllocations: [{ id: "booking_1" }],
+      resourceIds: ["resource_1"],
+    });
+    expect(buildTimelineProjectContextDetailResponseMock).toHaveBeenCalledWith({
+      project: {
+        id: "project_1",
+        startDate: new Date("2026-04-01T00:00:00.000Z"),
+        endDate: new Date("2026-04-10T00:00:00.000Z"),
+      },
+      period: {
+        startDate: new Date("2026-04-01T00:00:00.000Z"),
+        endDate: new Date("2026-04-10T00:00:00.000Z"),
+      },
+      allocations: [{ id: "allocation_1" }],
+      demands: [{ id: "demand_1", startDate: new Date("2026-04-01T00:00:00.000Z") }],
+      assignments: [{ id: "assignment_1", startDate: new Date("2026-04-02T00:00:00.000Z") }],
+      allResourceAllocations: [{ id: "booking_1" }],
+      resourceIds: ["resource_1"],
+      assignmentConflicts: [{ assignmentId: "assignment_1" }],
+      holidayOverlays: [{ id: "overlay_1" }],
+      directory: { enabled: true },
+    });
+  });
+});
diff --git a/packages/api/src/__tests__/timeline-project-procedure-support.test.ts b/packages/api/src/__tests__/timeline-project-procedure-support.test.ts
index c6d3e2c..96f5ec1 100644
--- a/packages/api/src/__tests__/timeline-project-procedure-support.test.ts
+++ b/packages/api/src/__tests__/timeline-project-procedure-support.test.ts
@@ -1,23 +1,9 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 
-vi.mock("../lib/anonymization.js", () => ({
-  getAnonymizationDirectory: vi.fn(),
-}));
-
 vi.mock("../router/timeline-project-load-support.js", () => ({
-  loadTimelineProjectContext: vi.fn(),
   previewTimelineProjectShift: vi.fn(),
 }));
 
-vi.mock("../router/timeline-project-context-support.js", () => ({
-  loadTimelineProjectContextDetailArtifacts: vi.fn(),
-}));
-
-vi.mock("../router/timeline-project-context-response-support.js", () => ({
-  buildTimelineProjectContextResponse: vi.fn(),
-  buildTimelineProjectContextDetailResponse: vi.fn(),
-}));
-
 vi.mock("@capakraken/application", () => ({
   listAssignmentBookings: vi.fn(),
 }));
@@ -40,16 +26,7 @@ vi.mock("../router/timeline-project-read-support.js", () => ({
 
 import { listAssignmentBookings } from "@capakraken/application";
 import { computeBudgetStatus } from "@capakraken/engine";
-import { getAnonymizationDirectory } from "../lib/anonymization.js";
 import {
-  loadTimelineProjectContextDetailArtifacts,
-} from "../router/timeline-project-context-support.js";
-import {
-  buildTimelineProjectContextDetailResponse,
-  buildTimelineProjectContextResponse,
-} from "../router/timeline-project-context-response-support.js";
-import {
-  loadTimelineProjectContext,
   previewTimelineProjectShift,
 } from "../router/timeline-project-load-support.js";
 import {
@@ -64,17 +41,10 @@ import {
 } from "../router/timeline-project-query-support.js";
 import {
   readTimelineProjectBudgetStatusResponse,
-  readTimelineProjectContextDetailResponse,
-  readTimelineProjectContextResponse,
   readTimelineProjectShiftPreviewDetail,
 } from "../router/timeline-project-procedure-support.js";
 
-const getAnonymizationDirectoryMock = vi.mocked(getAnonymizationDirectory);
-const loadTimelineProjectContextMock = vi.mocked(loadTimelineProjectContext);
 const previewTimelineProjectShiftMock = vi.mocked(previewTimelineProjectShift);
-const loadTimelineProjectContextDetailArtifactsMock = vi.mocked(loadTimelineProjectContextDetailArtifacts);
-const buildTimelineProjectContextResponseMock = vi.mocked(buildTimelineProjectContextResponse);
-const buildTimelineProjectContextDetailResponseMock = vi.mocked(buildTimelineProjectContextDetailResponse);
 const listAssignmentBookingsMock = vi.mocked(listAssignmentBookings);
 const computeBudgetStatusMock = vi.mocked(computeBudgetStatus);
 const findTimelineProjectOrThrowMock = vi.mocked(findTimelineProjectOrThrow);
@@ -87,102 +57,6 @@ describe("timeline project procedure support", () => {
     vi.clearAllMocks();
   });
 
-  it("builds project context responses from loaded context and anonymization directory", async () => {
-    loadTimelineProjectContextMock.mockResolvedValueOnce({
-      project: { id: "project_1" },
-      allocations: [{ id: "allocation_1" }],
-      demands: [{ id: "demand_1" }],
-      assignments: [{ id: "assignment_1" }],
-      allResourceAllocations: [{ id: "booking_1" }],
-      resourceIds: ["resource_1"],
-    } as never);
-    getAnonymizationDirectoryMock.mockResolvedValueOnce({ enabled: true } as never);
-    buildTimelineProjectContextResponseMock.mockReturnValueOnce({ ok: true } as never);
-
-    await expect(readTimelineProjectContextResponse({} as never, "project_1")).resolves.toEqual({
-      ok: true,
-    });
-
-    expect(loadTimelineProjectContextMock).toHaveBeenCalledWith({}, "project_1");
-    expect(getAnonymizationDirectoryMock).toHaveBeenCalledWith({});
-    expect(buildTimelineProjectContextResponseMock).toHaveBeenCalledWith({
-      project: { id: "project_1" },
-      allocations: [{ id: "allocation_1" }],
-      demands: [{ id: "demand_1" }],
-      assignments: [{ id: "assignment_1" }],
-      allResourceAllocations: [{ id: "booking_1" }],
-      resourceIds: ["resource_1"],
-      directory: { enabled: true },
-    });
-  });
-
-  it("builds project context detail responses from loaded artifacts", async () => {
-    loadTimelineProjectContextMock.mockResolvedValueOnce({
-      project: {
-        id: "project_1",
-        startDate: new Date("2026-04-01T00:00:00.000Z"),
-        endDate: new Date("2026-04-10T00:00:00.000Z"),
-      },
-      allocations: [{ id: "allocation_1" }],
-      demands: [{ id: "demand_1", startDate: new Date("2026-04-01T00:00:00.000Z") }],
-      assignments: [{ id: "assignment_1", startDate: new Date("2026-04-02T00:00:00.000Z") }],
-      allResourceAllocations: [{ id: "booking_1" }],
-      resourceIds: ["resource_1"],
-    } as never);
-    getAnonymizationDirectoryMock.mockResolvedValueOnce({ enabled: true } as never);
-    loadTimelineProjectContextDetailArtifactsMock.mockResolvedValueOnce({
-      period: {
-        startDate: new Date("2026-04-01T00:00:00.000Z"),
-        endDate: new Date("2026-04-10T00:00:00.000Z"),
-      },
-      holidayOverlays: [{ id: "overlay_1" }],
-      assignmentConflicts: [{ assignmentId: "assignment_1" }],
-    } as never);
-    buildTimelineProjectContextDetailResponseMock.mockReturnValueOnce({ detail: true } as never);
-
-    await expect(
-      readTimelineProjectContextDetailResponse({} as never, {
-        projectId: "project_1",
-        startDate: "2026-04-03",
-        endDate: "2026-04-12",
-        durationDays: 10,
-      }),
-    ).resolves.toEqual({ detail: true });
-
-    expect(loadTimelineProjectContextDetailArtifactsMock).toHaveBeenCalledWith({}, {
-      projectId: "project_1",
-      requestedStartDate: "2026-04-03",
-      requestedEndDate: "2026-04-12",
-      durationDays: 10,
-      projectStartDate: new Date("2026-04-01T00:00:00.000Z"),
-      projectEndDate: new Date("2026-04-10T00:00:00.000Z"),
-      firstAssignmentStartDate: new Date("2026-04-02T00:00:00.000Z"),
-      firstDemandStartDate: new Date("2026-04-01T00:00:00.000Z"),
-      assignments: [{ id: "assignment_1", startDate: new Date("2026-04-02T00:00:00.000Z") }],
-      allResourceAllocations: [{ id: "booking_1" }],
-      resourceIds: ["resource_1"],
-    });
-    expect(buildTimelineProjectContextDetailResponseMock).toHaveBeenCalledWith({
-      project: {
-        id: "project_1",
-        startDate: new Date("2026-04-01T00:00:00.000Z"),
-        endDate: new Date("2026-04-10T00:00:00.000Z"),
-      },
-      period: {
-        startDate: new Date("2026-04-01T00:00:00.000Z"),
-        endDate: new Date("2026-04-10T00:00:00.000Z"),
-      },
-      allocations: [{ id: "allocation_1" }],
-      demands: [{ id: "demand_1", startDate: new Date("2026-04-01T00:00:00.000Z") }],
-      assignments: [{ id: "assignment_1", startDate: new Date("2026-04-02T00:00:00.000Z") }],
-      allResourceAllocations: [{ id: "booking_1" }],
-      resourceIds: ["resource_1"],
-      assignmentConflicts: [{ assignmentId: "assignment_1" }],
-      holidayOverlays: [{ id: "overlay_1" }],
-      directory: { enabled: true },
-    });
-  });
-
   it("builds shift preview detail responses", async () => {
     findTimelineProjectOrThrowMock.mockResolvedValueOnce({ id: "project_1" } as never);
     previewTimelineProjectShiftMock.mockResolvedValueOnce({ valid: true } as never);
diff --git a/packages/api/src/router/timeline-project-context-procedure-support.ts b/packages/api/src/router/timeline-project-context-procedure-support.ts
new file mode 100644
index 0000000..991f7a7
--- /dev/null
+++ b/packages/api/src/router/timeline-project-context-procedure-support.ts
@@ -0,0 +1,79 @@
+import { getAnonymizationDirectory } from "../lib/anonymization.js";
+import {
+  loadTimelineProjectContextDetailArtifacts,
+} from "./timeline-project-context-support.js";
+import {
+  buildTimelineProjectContextDetailResponse,
+  buildTimelineProjectContextResponse,
+} from "./timeline-project-context-response-support.js";
+import { loadTimelineProjectContext } from "./timeline-project-load-support.js";
+
+type TimelineProjectContextProcedureDb =
+  & Parameters<typeof getAnonymizationDirectory>[0]
+  & Parameters<typeof loadTimelineProjectContext>[0]
+  & Parameters<typeof loadTimelineProjectContextDetailArtifacts>[0];
+
+export async function readTimelineProjectContextResponse(
+  db: TimelineProjectContextProcedureDb,
+  projectId: string,
+) {
+  const {
+    project,
+    allocations,
+    demands,
+    assignments,
+    allResourceAllocations,
+    resourceIds,
+  } = await loadTimelineProjectContext(db, projectId);
+  const directory = await getAnonymizationDirectory(db);
+
+  return buildTimelineProjectContextResponse({
+    project,
+    allocations,
+    demands,
+    assignments,
+    allResourceAllocations,
+    resourceIds,
+    directory,
+  });
+}
+
+export async function readTimelineProjectContextDetailResponse(
+  db: TimelineProjectContextProcedureDb,
+  input: {
+    projectId: string;
+    startDate?: string | undefined;
+    endDate?: string | undefined;
+    durationDays?: number | undefined;
+  },
+) {
+  const projectContext = await loadTimelineProjectContext(db, input.projectId);
+  const directory = await getAnonymizationDirectory(db);
+  const { period, holidayOverlays, assignmentConflicts } =
+    await loadTimelineProjectContextDetailArtifacts(db, {
+      projectId: input.projectId,
+      requestedStartDate: input.startDate,
+      requestedEndDate: input.endDate,
+      durationDays: input.durationDays,
+      projectStartDate: projectContext.project.startDate,
+      projectEndDate: projectContext.project.endDate,
+      firstAssignmentStartDate: projectContext.assignments[0]?.startDate,
+      firstDemandStartDate: projectContext.demands[0]?.startDate,
+      assignments: projectContext.assignments,
+      allResourceAllocations: projectContext.allResourceAllocations,
+      resourceIds: projectContext.resourceIds,
+    });
+
+  return buildTimelineProjectContextDetailResponse({
+    project: projectContext.project,
+    period,
+    allocations: projectContext.allocations,
+    demands: projectContext.demands,
+    assignments: projectContext.assignments,
+    allResourceAllocations: projectContext.allResourceAllocations,
+    resourceIds: projectContext.resourceIds,
+    assignmentConflicts,
+    holidayOverlays,
+    directory,
+  });
+}
diff --git a/packages/api/src/router/timeline-project-procedure-support.ts b/packages/api/src/router/timeline-project-procedure-support.ts
index 497e6f9..d036de1 100644
--- a/packages/api/src/router/timeline-project-procedure-support.ts
+++ b/packages/api/src/router/timeline-project-procedure-support.ts
@@ -1,15 +1,6 @@
 import { listAssignmentBookings } from "@capakraken/application";
 import { computeBudgetStatus } from "@capakraken/engine";
-import { getAnonymizationDirectory } from "../lib/anonymization.js";
 import {
-  loadTimelineProjectContextDetailArtifacts,
-} from "./timeline-project-context-support.js";
-import {
-  buildTimelineProjectContextDetailResponse,
-  buildTimelineProjectContextResponse,
-} from "./timeline-project-context-response-support.js";
-import {
-  loadTimelineProjectContext,
   previewTimelineProjectShift,
 } from "./timeline-project-load-support.js";
 import {
@@ -24,77 +15,10 @@ import {
 } from "./timeline-project-query-support.js";
 
 type TimelineProjectProcedureDb =
-  & Parameters<typeof getAnonymizationDirectory>[0]
-  & Parameters<typeof loadTimelineProjectContext>[0]
-  & Parameters<typeof loadTimelineProjectContextDetailArtifacts>[0]
+  & Parameters<typeof previewTimelineProjectShift>[0]
   & Parameters<typeof findTimelineProjectOrThrow>[0]
   & Parameters<typeof listAssignmentBookings>[0];
 
-export async function readTimelineProjectContextResponse(
-  db: TimelineProjectProcedureDb,
-  projectId: string,
-) {
-  const {
-    project,
-    allocations,
-    demands,
-    assignments,
-    allResourceAllocations,
-    resourceIds,
-  } = await loadTimelineProjectContext(db, projectId);
-  const directory = await getAnonymizationDirectory(db);
-
-  return buildTimelineProjectContextResponse({
-    project,
-    allocations,
-    demands,
-    assignments,
-    allResourceAllocations,
-    resourceIds,
-    directory,
-  });
-}
-
-export async function readTimelineProjectContextDetailResponse(
-  db: TimelineProjectProcedureDb,
-  input: {
-    projectId: string;
-    startDate?: string | undefined;
-    endDate?: string | undefined;
-    durationDays?: number | undefined;
-  },
-) {
-  const projectContext = await loadTimelineProjectContext(db, input.projectId);
-  const directory = await getAnonymizationDirectory(db);
-  const { period, holidayOverlays, assignmentConflicts } =
-    await loadTimelineProjectContextDetailArtifacts(db, {
-      projectId: input.projectId,
-      requestedStartDate: input.startDate,
-      requestedEndDate: input.endDate,
-      durationDays: input.durationDays,
-      projectStartDate: projectContext.project.startDate,
-      projectEndDate: projectContext.project.endDate,
-      firstAssignmentStartDate: projectContext.assignments[0]?.startDate,
-      firstDemandStartDate: projectContext.demands[0]?.startDate,
-      assignments: projectContext.assignments,
-      allResourceAllocations: projectContext.allResourceAllocations,
-      resourceIds: projectContext.resourceIds,
-    });
-
-  return buildTimelineProjectContextDetailResponse({
-    project: projectContext.project,
-    period,
-    allocations: projectContext.allocations,
-    demands: projectContext.demands,
-    assignments: projectContext.assignments,
-    allResourceAllocations: projectContext.allResourceAllocations,
-    resourceIds: projectContext.resourceIds,
-    assignmentConflicts,
-    holidayOverlays,
-    directory,
-  });
-}
-
 export async function readTimelineProjectShiftPreviewDetail(
   db: TimelineProjectProcedureDb,
   input: {
diff --git a/packages/api/src/router/timeline-project-read.ts b/packages/api/src/router/timeline-project-read.ts
index c574104..21f62c0 100644
--- a/packages/api/src/router/timeline-project-read.ts
+++ b/packages/api/src/router/timeline-project-read.ts
@@ -6,9 +6,11 @@ import {
   TimelineProjectContextDetailSchema,
 } from "./timeline-read-shared.js";
 import {
-  readTimelineProjectBudgetStatusResponse,
   readTimelineProjectContextDetailResponse,
   readTimelineProjectContextResponse,
+} from "./timeline-project-context-procedure-support.js";
+import {
+  readTimelineProjectBudgetStatusResponse,
   readTimelineProjectShiftPreviewDetail,
 } from "./timeline-project-procedure-support.js";