diff --git a/docs/route-access-matrix.md b/docs/route-access-matrix.md
index b7c3235..cac59e2 100644
--- a/docs/route-access-matrix.md
+++ b/docs/route-access-matrix.md
@@ -135,6 +135,19 @@ Reasoning:
 - management-level groups carry chargeability targets and resource-linked counts that feed planning and reporting workflows, so they should not stay on broad authenticated reads
 - the list is consumed by resource editing, reporting filters, and admin configuration, which all fit the explicit planning audience better than generic `protectedProcedure`
 
+### `packages/api/src/router/blueprint.ts`
+
+- `listSummaries`: `planning-read`
+- `resolveByIdentifier`: `authenticated-safe-lookup`
+- remaining reads stay unchanged in this rollout
+- create, update, delete, global-flag writes: `admin-only`
+
+Reasoning:
+
+- `listSummaries` exposes `_count.projects`, so the assistant-facing summary list should not remain a broad authenticated read
+- `resolveByIdentifier` already returns a narrow lookup shape suitable for low-risk name/id resolution
+- broader blueprint read routes still support existing UI flows and need a separate follow-up slice before they can be tightened safely
+
 ### `packages/api/src/router/holiday-calendar.ts`
 
 - `listCalendars`, `listCalendarsDetail`, `getCalendarByIdentifier`, `getCalendarByIdentifierDetail`, `getCalendarById`: `admin-only`
diff --git a/packages/api/src/__tests__/assistant-router.test.ts b/packages/api/src/__tests__/assistant-router.test.ts
index e37c76e..88c7c95 100644
--- a/packages/api/src/__tests__/assistant-router.test.ts
+++ b/packages/api/src/__tests__/assistant-router.test.ts
@@ -387,6 +387,7 @@ describe("assistant router tool gating", () => {
 
     expect(userWithoutPlanning).not.toContain("list_allocations");
     expect(userWithoutPlanning).not.toContain("list_demands");
+    expect(userWithoutPlanning).not.toContain("list_blueprints");
     expect(userWithoutPlanning).not.toContain("list_clients");
     expect(userWithoutPlanning).not.toContain("list_roles");
     expect(userWithoutPlanning).not.toContain("list_management_levels");
@@ -397,6 +398,7 @@ describe("assistant router tool gating", () => {
     expect(userWithoutPlanning).not.toContain("find_best_project_resource");
     expect(userWithPlanning).toContain("list_allocations");
     expect(userWithPlanning).toContain("list_demands");
+    expect(userWithPlanning).toContain("list_blueprints");
     expect(userWithPlanning).toContain("list_clients");
     expect(userWithPlanning).toContain("list_roles");
     expect(userWithPlanning).toContain("list_management_levels");
diff --git a/packages/api/src/__tests__/master-data-router-auth.test.ts b/packages/api/src/__tests__/master-data-router-auth.test.ts
index 3ade992..075d4a8 100644
--- a/packages/api/src/__tests__/master-data-router-auth.test.ts
+++ b/packages/api/src/__tests__/master-data-router-auth.test.ts
@@ -1,5 +1,6 @@
 import { PermissionKey, SystemRole } from "@capakraken/shared";
 import { describe, expect, it, vi } from "vitest";
+import { blueprintRouter } from "../router/blueprint.js";
 import { clientRouter } from "../router/client.js";
 import { countryRouter } from "../router/country.js";
 import { managementLevelRouter } from "../router/management-level.js";
@@ -26,6 +27,52 @@ function createProtectedContext(
 }
 
 describe("master-data router authorization", () => {
+  it("requires planning read access for blueprint summaries with project counts", async () => {
+    const findMany = vi.fn();
+    const caller = createCallerFactory(blueprintRouter)(createProtectedContext({
+      blueprint: {
+        findMany,
+      },
+    }));
+
+    await expect(caller.listSummaries()).rejects.toMatchObject({
+      code: "FORBIDDEN",
+      message: "Planning read access required",
+    });
+
+    expect(findMany).not.toHaveBeenCalled();
+  });
+
+  it("allows blueprint summaries for users with planning access", async () => {
+    const findMany = vi.fn().mockResolvedValue([
+      {
+        id: "bp_1",
+        name: "Consulting Blueprint",
+        _count: { projects: 4 },
+      },
+    ]);
+    const caller = createCallerFactory(blueprintRouter)(createProtectedContext({
+      blueprint: {
+        findMany,
+      },
+    }, {
+      granted: [PermissionKey.VIEW_PLANNING],
+    }));
+
+    const result = await caller.listSummaries();
+
+    expect(result).toHaveLength(1);
+    expect(result[0]?._count.projects).toBe(4);
+    expect(findMany).toHaveBeenCalledWith({
+      select: {
+        id: true,
+        name: true,
+        _count: { select: { projects: true } },
+      },
+      orderBy: { name: "asc" },
+    });
+  });
+
   it("keeps country lists available to authenticated users as safe lookup data", async () => {
     const findMany = vi.fn().mockResolvedValue([
       {
diff --git a/packages/api/src/router/assistant.ts b/packages/api/src/router/assistant.ts
index 581e0b7..166e226 100644
--- a/packages/api/src/router/assistant.ts
+++ b/packages/api/src/router/assistant.ts
@@ -228,6 +228,7 @@ const COST_TOOLS = new Set([
 const PLANNING_READ_TOOLS = new Set([
   "list_allocations",
   "list_demands",
+  "list_blueprints",
   "list_clients",
   "list_roles",
   "list_management_levels",
diff --git a/packages/api/src/router/blueprint.ts b/packages/api/src/router/blueprint.ts
index 3ccf1df..5066581 100644
--- a/packages/api/src/router/blueprint.ts
+++ b/packages/api/src/router/blueprint.ts
@@ -2,11 +2,11 @@ import { BlueprintTarget, CreateBlueprintSchema, UpdateBlueprintSchema, type Blu
 import { TRPCError } from "@trpc/server";
 import { z } from "zod";
 import { findUniqueOrThrow } from "../db/helpers.js";
-import { adminProcedure, createTRPCRouter, protectedProcedure } from "../trpc.js";
+import { adminProcedure, createTRPCRouter, planningReadProcedure, protectedProcedure } from "../trpc.js";
 import { createAuditEntry } from "../lib/audit.js";
 
 export const blueprintRouter = createTRPCRouter({
-  listSummaries: protectedProcedure
+  listSummaries: planningReadProcedure
     .query(async ({ ctx }) => {
       return ctx.db.blueprint.findMany({
         select: {