fix(mcp): MCP 用登入者的身分查詢，不再去找一把服務內部金鑰

leo 2026-08-12：「人類進 Portal 輸入帳密表示你是主人，可以查到你權限所有東西；
AI 透過輸入帳密的 MCP 查詢表示是授權的 AI，可以查到主人允許查的任何東西。」
「掛上 MCP 並輸入帳密，那個動作本身就是授權」⇒ 下游不得再要求第二次認證。

病根（不是金鑰沒同步，是身分沒接住）：
  oauth/routes.ts 驗完 Portal 帳密只留下 `loginOk = res.ok` 一個布林值，身分當場丟棄，
  namespace 改從 `MCP_OWNER_NAMESPACE || "leo"` 拿。於是查詢時手上沒有身分可帶，
  只好用 KBDB_INTERNAL_TOKEN 直打 KBDB——那條路繞過 portal 所有庫過濾，
  而且不管誰登入都看到同一格、看到全部。CLI 也從不注入 MCP_OWNER_NAMESPACE，
  所以那個 "leo" 預設值是每台實例的實際行為，不是理論上的邊角。

修法（走既有那條路，不發明新的）：
1. 接住身分：/authorize 解析 /portal/login 回應，把 portal session token ＋
   display_name/role/libraries 存進 authorization code → access token。
   /portal/login 補回 session_expires_in，access_token TTL 夾成
   min(自己的 TTL, portal session TTL)——不讓「MCP 還連著、底下 session 早死」。
   cypher 回 200 但沒給 session_token（舊版）→ 不發碼，不簽一張沒有身分的 token。
2. 攜帶身分：kbdb_* 全部改走 cypher `/portal/data/*`，Authorization 帶登入者的
   session。庫過濾／租戶注入／停用即時生效全在 server 側，與人類走 portal 網頁同一道閘。
   kbdb_graph_neighbors 因此不再需要 kbdb_base（server 自己知道查哪個庫）。
   藏書地圖（含連線時注入 instructions 的那份）同樣只回有權限的庫，快取改 per-session
   分格——地圖本身就是情報，不能讓先連上的人把視野留給下一個。
3. fail-closed：舊 token 沒有身分 → 誠實要求重新連線，不偷偷退回服務金鑰那條老路。
   服務級憑據（static token / partner key）維持既有 KBDB 直連，arcrun_* 零回歸。

新增 cypher portal 資料面端點（能力長在 API，MCP 只暴露；rule 07）：
  GET  /portal/data/map、/portal/data/map/:library
  GET  /portal/data/templates、POST /portal/data/templates
  GET  /portal/data/records/by-template/:t、GET /portal/data/records/:id
  POST /portal/data/records
全部：呼叫端自帶 owner_id 一律不生效；越權與不存在同回 404；寫入 owner_id 由 server 定死。

KBDB base：`GET /records/:id` 與 by-template 補回 owner_id 欄位——原本不回，
呼叫端無從判斷「這筆是不是我的」，按 id 直讀等於沒有租戶邊界。

沒動：KBDB fail-closed 閘、任何金鑰、租戶字串仍不下發給呼叫端。

驗證：
  mcp        tsc 綠；vitest 113/113 綠（改前 48 綠 29 紅）
  cypher     vitest 400 綠 / 14 紅，14 紅與 base commit a24f291 逐條相同（既有）
  kbdb       vitest 208 綠 / 5 紅，5 紅同為既有（migrations/*.sql 被 gitignore）
  端到端     ◐ 未驗：需部署到 leo21c，那道閘要 leo 親手解（見 PR）

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

mcp/tests/unit/tools/kbdb-data-identity.test.ts

@@ -0,0 +1,208 @@
+/**
+ * kbdb_* 資料層工具：**用登入進來的那個人的身分查詢**（2026-08-12）。
+ *
+ * leo：「人類進 Portal 輸入帳密表示你是主人，可以查到你權限所有東西；AI 透過輸入帳密的
+ *   MCP 查詢表示是授權的 AI，可以查到主人允許查的任何東西。」
+ *   「掛上 MCP 並輸入帳密，那個動作本身就是授權」⇒ 下游不得再要求第二次認證。
+ *
+ * 本檔守三件事：
+ *   ① 以帳密連線時，查詢**帶登入者的 portal session** 打 cypher `/portal/data/*`
+ *      ——不再拿 KBDB 的服務內部金鑰直打 KBDB（那條路繞過所有庫過濾）。
+ *   ② 呼叫端自帶的 owner_id **一律不生效**（範圍由帳號權限決定，不由呼叫端指定）。
+ *   ③ 舊 token（沒有身分）**fail-closed**：誠實要求重新連線，不偷偷退回服務金鑰那條老路。
+ *   ④ 服務級憑據（static token / partner key）維持既有 KBDB 直連（零回歸）。
+ */
+import { describe, it, expect } from "vitest";
+import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
+import type { Env } from "../../../src/types.js";
+import { registerAllKbdbDataTools } from "../../../src/tools/kbdb_data.js";
+import type { KnowledgeIdentity } from "../../../src/lib/portal-client.js";
+
+type ToolHandler = (args: Record<string, unknown>) => Promise<{
+  content: { type: string; text: string }[];
+  isError?: boolean;
+}>;
+
+function makeServer() {
+  const tools = new Map<string, { description: string; handler: ToolHandler }>();
+  const server = {
+    tool(name: string, description: string, _schema: unknown, handler: ToolHandler) {
+      tools.set(name, { description, handler });
+    },
+  };
+  return { server: server as unknown as McpServer, tools };
+}
+
+/** 兩個 binding 都掛上，才驗得出「該走哪一條」——走錯的那條會被記錄下來。 */
+function makeEnv(respond: (which: "cypher" | "kbdb", url: URL, init?: RequestInit) => Response) {
+  const cypherCalls: { url: URL; init?: RequestInit }[] = [];
+  const kbdbCalls: { url: URL; init?: RequestInit }[] = [];
+  const env = {
+    CYPHER_EXECUTOR: {
+      fetch: async (input: string, init?: RequestInit) => {
+        const url = new URL(input);
+        cypherCalls.push({ url, init });
+        return respond("cypher", url, init);
+      },
+    },
+    KBDB: {
+      fetch: async (input: string, init?: RequestInit) => {
+        const url = new URL(input);
+        kbdbCalls.push({ url, init });
+        return respond("kbdb", url, init);
+      },
+    },
+    KBDB_INTERNAL_TOKEN: "service-key-should-not-be-used-on-portal-path",
+  } as unknown as Env;
+  return { env, cypherCalls, kbdbCalls };
+}
+
+function parseResult(r: { content: { text: string }[] }) {
+  return JSON.parse(r.content[0].text) as Record<string, unknown>;
+}
+
+const PORTAL: KnowledgeIdentity = {
+  kind: "portal",
+  portal: { session: "sess-abc", display_name: "Leo", role: "admin", libraries: ["kb"] },
+};
+const SERVICE: KnowledgeIdentity = { kind: "service" };
+const STALE: KnowledgeIdentity = { kind: "stale" };
+
+function tools(identity: KnowledgeIdentity, respond: Parameters<typeof makeEnv>[0]) {
+  const { server, tools } = makeServer();
+  const e = makeEnv(respond);
+  registerAllKbdbDataTools(server, e.env, identity);
+  return { tools, ...e };
+}
+
+const OK = () => new Response(JSON.stringify({ success: true, entries: [], records: [], count: 0 }));
+
+describe("kbdb_* 以登入者身分查詢（portal 資料面）", () => {
+  const cases: Array<{ tool: string; args: Record<string, unknown>; path: string; method?: string }> = [
+    { tool: "kbdb_search", args: { q: "火星座標" }, path: "/portal/data/search" },
+    { tool: "kbdb_query", args: { template: "triplet" }, path: "/portal/data/records/by-template/triplet" },
+    { tool: "kbdb_get_record", args: { record_id: "rec_1" }, path: "/portal/data/records/rec_1" },
+    { tool: "kbdb_list_templates", args: {}, path: "/portal/data/templates" },
+    { tool: "kbdb_create_template", args: { name: "contact", slots: ["name"] }, path: "/portal/data/templates", method: "POST" },
+    { tool: "kbdb_create_record", args: { template: "contact", values: { name: "Leo" } }, path: "/portal/data/records", method: "POST" },
+  ];
+
+  for (const c of cases) {
+    it(`${c.tool} → 打 ${c.path}，帶登入者 session，完全不碰 KBDB 服務金鑰`, async () => {
+      const { tools: t, cypherCalls, kbdbCalls } = tools(PORTAL, OK);
+      const res = await t.get(c.tool)!.handler(c.args);
+      expect(res.isError).toBeUndefined();
+
+      // 走的是 cypher 的 portal 資料面，不是 KBDB 直連
+      expect(kbdbCalls, `${c.tool} 不該直打 KBDB`).toHaveLength(0);
+      expect(cypherCalls).toHaveLength(1);
+      expect(cypherCalls[0].url.pathname).toBe(c.path);
+      expect(cypherCalls[0].init?.method ?? "GET").toBe(c.method ?? "GET");
+
+      // 帶的是「那個人的 session」，不是任何服務金鑰
+      const auth = new Headers(cypherCalls[0].init!.headers as HeadersInit).get("Authorization");
+      expect(auth).toBe("Bearer sess-abc");
+      expect(auth).not.toContain("service-key");
+    });
+  }
+
+  it("呼叫端自帶 owner_id 一律不生效（不讓呼叫端自己挑租戶／歸屬）", async () => {
+    const { tools: t, cypherCalls } = tools(PORTAL, OK);
+    await t.get("kbdb_search")!.handler({ q: "x", owner_id: "someone-else" });
+    await t.get("kbdb_query")!.handler({ template: "triplet", owner_id: "someone-else" });
+    for (const call of cypherCalls) {
+      expect(call.url.searchParams.get("owner_id")).toBeNull();
+    }
+  });
+
+  it("寫入時 owner_id 不從呼叫端 body 走（server 定死成登入者的歸屬）", async () => {
+    const { tools: t, cypherCalls } = tools(PORTAL, OK);
+    await t.get("kbdb_create_record")!.handler({
+      template: "contact",
+      values: { name: "Leo" },
+      owner_id: "someone-else",
+    });
+    const body = JSON.parse(String(cypherCalls[0].init!.body)) as Record<string, unknown>;
+    expect(body).not.toHaveProperty("owner_id");
+  });
+
+  it("越庫寫入被擋（403）→ 誠實講是權限問題", async () => {
+    const { tools: t } = tools(PORTAL, () =>
+      new Response(JSON.stringify({ error: '無「secret」庫的權限，不能寫入該庫' }), { status: 403 }),
+    );
+    const res = await t.get("kbdb_create_record")!.handler({
+      template: "note",
+      values: { library: "secret", body: "x" },
+    });
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("forbidden");
+  });
+
+  it("查不是自己的 record（404）→ 與「不存在」同一句話（不洩存在性）", async () => {
+    const { tools: t } = tools(PORTAL, () =>
+      new Response(JSON.stringify({ error: "找不到這筆資料" }), { status: 404 }),
+    );
+    const res = await t.get("kbdb_get_record")!.handler({ record_id: "rec_someone_else" });
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("not_found");
+    expect(String(parseResult(res).human_message)).toContain("不在你的權限範圍內");
+  });
+
+  it("session 過期（401）→ session_expired，不謊稱資料是空的", async () => {
+    const { tools: t } = tools(PORTAL, () =>
+      new Response(JSON.stringify({ error: "session 無效或已過期" }), { status: 401 }),
+    );
+    const res = await t.get("kbdb_search")!.handler({ q: "x" });
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("session_expired");
+  });
+});
+
+describe("fail-closed：舊 token 沒有身分就查不到東西（不退回服務金鑰）", () => {
+  for (const name of [
+    "kbdb_search",
+    "kbdb_query",
+    "kbdb_get_record",
+    "kbdb_list_templates",
+    "kbdb_create_template",
+    "kbdb_create_record",
+  ]) {
+    it(`${name} → identity_missing，且一個查詢都不發`, async () => {
+      const { tools: t, cypherCalls, kbdbCalls } = tools(STALE, OK);
+      const res = await t.get(name)!.handler({
+        q: "x",
+        template: "t",
+        record_id: "r",
+        name: "n",
+        slots: ["a"],
+        values: { a: "b" },
+      });
+      expect(res.isError).toBe(true);
+      expect(parseResult(res).error_code).toBe("identity_missing");
+      expect(cypherCalls).toHaveLength(0);
+      expect(kbdbCalls).toHaveLength(0);
+    });
+  }
+});
+
+describe("回歸：服務級憑據維持既有 KBDB 直連", () => {
+  it("kbdb_search 仍直打 KBDB /entries/search，且照舊吃 owner_id", async () => {
+    const { tools: t, cypherCalls, kbdbCalls } = tools(SERVICE, OK);
+    const res = await t.get("kbdb_search")!.handler({ q: "x", owner_id: "leo" });
+    expect(res.isError).toBeUndefined();
+    expect(cypherCalls).toHaveLength(0);
+    expect(kbdbCalls).toHaveLength(1);
+    expect(kbdbCalls[0].url.pathname).toBe("/entries/search");
+    expect(kbdbCalls[0].url.searchParams.get("owner_id")).toBe("leo");
+  });
+
+  it("kbdb_query / kbdb_get_record 路徑不變", async () => {
+    const { tools: t, kbdbCalls } = tools(SERVICE, OK);
+    await t.get("kbdb_query")!.handler({ template: "triplet" });
+    await t.get("kbdb_get_record")!.handler({ record_id: "rec_1" });
+    expect(kbdbCalls.map((c) => c.url.pathname)).toEqual([
+      "/records/by-template/triplet",
+      "/records/rec_1",
+    ]);
+  });
+});

mcp/tests/unit/tools/kbdb-graph.test.ts

@@ -5,6 +5,17 @@ import {
   registerGraphNeighbors,
   GRAPH_NEIGHBORS_WORKFLOW,
 } from "../../../src/tools/kbdb_graph.js";
+import type { KnowledgeIdentity } from "../../../src/lib/portal-client.js";
+
+/** 服務級憑據（static token / partner key）——既有路徑，行為零變更。 */
+const SERVICE: KnowledgeIdentity = { kind: "service" };
+/** 有人輸入 Portal 帳密授權的連線——走 cypher 的 portal 資料面。 */
+const PORTAL: KnowledgeIdentity = {
+  kind: "portal",
+  portal: { session: "sess-abc", display_name: "Leo", role: "admin", libraries: ["*"] },
+};
+/** 本次改版前簽發的舊 token（沒有身分）。 */
+const STALE: KnowledgeIdentity = { kind: "stale" };
 
 // ── 假 McpServer：只攔 tool 註冊，抓出 handler 直接呼叫 ─────────────────────────
 type ToolHandler = (args: Record<string, unknown>) => Promise<{
@@ -45,7 +56,7 @@ describe("kbdb_graph_neighbors: registration", () => {
   it("registers under kbdb_* prefix (D17 KBDB MCP boundary)", () => {
     const { server, tools } = makeServer();
     const { env } = makeEnv(() => new Response("{}"));
-    registerGraphNeighbors(server, env, "leo");
+    registerGraphNeighbors(server, env, "leo", SERVICE);
     expect(tools.has("kbdb_graph_neighbors")).toBe(true);
     expect(tools.get("kbdb_graph_neighbors")!.description).toContain("graph");
   });
@@ -61,7 +72,7 @@ describe("kbdb_graph_neighbors: request shape", () => {
           { status: 200 },
         ),
     );
-    registerGraphNeighbors(server, env, "leo");
+    registerGraphNeighbors(server, env, "leo", SERVICE);
     const res = await tools.get("kbdb_graph_neighbors")!.handler({
       subject: "Arcrun",
       depth: 2,
@@ -88,7 +99,7 @@ describe("kbdb_graph_neighbors: request shape", () => {
     const { env, calls } = makeEnv(
       () => new Response(JSON.stringify({ success: true, neighbors: [], count: 0 })),
     );
-    registerGraphNeighbors(server, env, "leo");
+    registerGraphNeighbors(server, env, "leo", SERVICE);
     await tools.get("kbdb_graph_neighbors")!.handler({
       subject: "A",
       kbdb_base: "https://kbdb.example.com",
@@ -108,7 +119,7 @@ describe("kbdb_graph_neighbors: honest errors (鐵律：workflow 沒裝不 crash
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ error: '找不到 workflow "graph_neighbors"' }), { status: 404 }),
     );
-    registerGraphNeighbors(server, env, "leo");
+    registerGraphNeighbors(server, env, "leo", SERVICE);
     const res = await tools.get("kbdb_graph_neighbors")!.handler({
       subject: "A",
       kbdb_base: "https://kbdb.example.com",
@@ -124,7 +135,7 @@ describe("kbdb_graph_neighbors: honest errors (鐵律：workflow 沒裝不 crash
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ success: false, error: "boom", trace: [] }), { status: 500 }),
     );
-    registerGraphNeighbors(server, env, "leo");
+    registerGraphNeighbors(server, env, "leo", SERVICE);
     const res = await tools.get("kbdb_graph_neighbors")!.handler({
       subject: "A",
       kbdb_base: "https://kbdb.example.com",
@@ -143,7 +154,7 @@ describe("kbdb_graph_neighbors: honest errors (鐵律：workflow 沒裝不 crash
           status: 200,
         }),
     );
-    registerGraphNeighbors(server, env, "leo");
+    registerGraphNeighbors(server, env, "leo", SERVICE);
     const res = await tools.get("kbdb_graph_neighbors")!.handler({
       subject: "A",
       kbdb_base: "https://kbdb.example.com",
@@ -156,7 +167,7 @@ describe("kbdb_graph_neighbors: honest errors (鐵律：workflow 沒裝不 crash
   it("empty orgNamespace → no_namespace error, no fetch made", async () => {
     const { server, tools } = makeServer();
     const { env, calls } = makeEnv(() => new Response("{}"));
-    registerGraphNeighbors(server, env, "");
+    registerGraphNeighbors(server, env, "", SERVICE);
     const res = await tools.get("kbdb_graph_neighbors")!.handler({
       subject: "A",
       kbdb_base: "https://kbdb.example.com",
@@ -166,3 +177,77 @@ describe("kbdb_graph_neighbors: honest errors (鐵律：workflow 沒裝不 crash
     expect(calls).toHaveLength(0);
   });
 });
+
+// ── 2026-08-12：以帳密連線時走登入者的身分（leo：主人查得到的，授權的 AI 就查得到）──
+describe("kbdb_graph_neighbors: 登入身分（portal 資料面）", () => {
+  it("打 cypher 的 /portal/data/graph/neighbors，且帶的是登入者的 session（不是服務金鑰）", async () => {
+    const { server, tools } = makeServer();
+    const { env, calls } = makeEnv(
+      () =>
+        new Response(
+          JSON.stringify({
+            neighbors: [{ node: "B", predicate: "uses", from: "A", depth: 1 }],
+            edges: [],
+            count: 1,
+          }),
+          { status: 200 },
+        ),
+    );
+    registerGraphNeighbors(server, env, "leo", PORTAL);
+    const res = await tools.get("kbdb_graph_neighbors")!.handler({ subject: "A", depth: 2 });
+
+    expect(calls).toHaveLength(1);
+    expect(calls[0].url.pathname).toBe("/portal/data/graph/neighbors/A");
+    expect(calls[0].url.searchParams.get("depth")).toBe("2");
+    const headers = new Headers(calls[0].init!.headers as HeadersInit);
+    expect(headers.get("Authorization")).toBe("Bearer sess-abc");
+
+    expect(res.isError).toBeUndefined();
+    expect((parseResult(res).data as { count: number }).count).toBe(1);
+  });
+
+  it("**不需要 kbdb_base**：已經登入過了，不再要第二次「證明你是誰／你的庫在哪」", async () => {
+    const { server, tools } = makeServer();
+    const { env, calls } = makeEnv(
+      () => new Response(JSON.stringify({ neighbors: [], edges: [], count: 0 })),
+    );
+    registerGraphNeighbors(server, env, "leo", PORTAL);
+    const res = await tools.get("kbdb_graph_neighbors")!.handler({ subject: "A" });
+    expect(res.isError).toBeUndefined();
+    expect(calls).toHaveLength(1);
+    // 呼叫端就算硬塞 kbdb_base 也不會被拿去用（server 自己知道要查哪個庫）
+    expect(calls[0].url.searchParams.get("kbdb_base")).toBeNull();
+  });
+
+  it("session 過期（401）→ 誠實說是登入過期，不說「查不到資料」", async () => {
+    const { server, tools } = makeServer();
+    const { env } = makeEnv(
+      () => new Response(JSON.stringify({ error: "session 無效或已過期" }), { status: 401 }),
+    );
+    registerGraphNeighbors(server, env, "leo", PORTAL);
+    const res = await tools.get("kbdb_graph_neighbors")!.handler({ subject: "A" });
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("session_expired");
+  });
+
+  it("無 graph 權限（403）→ 誠實回沒權限，不假裝「沒有關聯」", async () => {
+    const { server, tools } = makeServer();
+    const { env } = makeEnv(
+      () => new Response(JSON.stringify({ error: "無知識圖譜檢視權限" }), { status: 403 }),
+    );
+    registerGraphNeighbors(server, env, "leo", PORTAL);
+    const res = await tools.get("kbdb_graph_neighbors")!.handler({ subject: "A" });
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("forbidden");
+  });
+
+  it("舊 token（沒有身分）→ 不偷偷退回服務金鑰那條老路，要求重新連線", async () => {
+    const { server, tools } = makeServer();
+    const { env, calls } = makeEnv(() => new Response("{}"));
+    registerGraphNeighbors(server, env, "leo", STALE);
+    const res = await tools.get("kbdb_graph_neighbors")!.handler({ subject: "A" });
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("identity_missing");
+    expect(calls).toHaveLength(0); // 一個查詢都沒發出去（fail-closed）
+  });
+});

mcp/tests/unit/tools/kbdb-map.test.ts

@@ -7,6 +7,32 @@ import {
   renderLibraryMapLines,
   __resetLibraryMapInstructionsCacheForTests,
 } from "../../../src/lib/library-map.js";
+import type { KnowledgeIdentity } from "../../../src/lib/portal-client.js";
+
+/** 服務級憑據（static token / partner key）——既有 KBDB 直連路徑，行為零變更。 */
+const SERVICE: KnowledgeIdentity = { kind: "service" };
+/** 有人輸入 Portal 帳密授權的連線——走 cypher 的 portal 資料面（只看得到自己有權限的庫）。 */
+const PORTAL: KnowledgeIdentity = {
+  kind: "portal",
+  portal: { session: "sess-abc", display_name: "Leo", role: "admin", libraries: ["kb"] },
+};
+/** 本次改版前簽發的舊 token（沒有身分）。 */
+const STALE: KnowledgeIdentity = { kind: "stale" };
+
+/** 假 CYPHER_EXECUTOR binding（portal 資料面用）。 */
+function makePortalEnv(respond: (url: URL, init?: RequestInit) => Response) {
+  const calls: { url: URL; init?: RequestInit }[] = [];
+  const env = {
+    CYPHER_EXECUTOR: {
+      fetch: async (input: string, init?: RequestInit) => {
+        const url = new URL(input);
+        calls.push({ url, init });
+        return respond(url, init);
+      },
+    },
+  } as unknown as Env;
+  return { env, calls };
+}
 
 // ── 假 McpServer：只攔 tool 註冊，抓出 handler 直接呼叫（比照 kbdb-graph.test.ts）──────
 type ToolHandler = (args: Record<string, unknown>) => Promise<{
@@ -56,7 +82,7 @@ describe("kbdb_get_map: registration", () => {
   it("registers under kbdb_* prefix (D17) with the 'call this first' hint in description", () => {
     const { server, tools } = makeServer();
     const { env } = makeEnv(() => new Response("{}"));
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     expect(tools.has("kbdb_get_map")).toBe(true);
     // 任務規格：description 必含「不確定該查什麼時，先呼叫此工具」
     expect(tools.get("kbdb_get_map")!.description).toContain("不確定該查什麼時，先呼叫此工具");
@@ -69,7 +95,7 @@ describe("kbdb_get_map: 全館地圖（無參數）", () => {
     const { env, calls } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [KB_ROW], count: 1 })),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({});
 
     expect(calls).toHaveLength(1);
@@ -90,7 +116,7 @@ describe("kbdb_get_map: 全館地圖（無參數）", () => {
     const { env, calls } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [], count: 0 })),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     await tools.get("kbdb_get_map")!.handler({ owner_id: "leo" });
     expect(calls[0].url.searchParams.get("owner_id")).toBe("leo");
   });
@@ -105,7 +131,7 @@ describe("kbdb_get_map: 全館地圖（無參數）", () => {
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [row], count: 1 })),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({});
     const data = parseResult(res).data as {
       libraries: { top_entities: string[]; triplet_count: number }[];
@@ -119,7 +145,7 @@ describe("kbdb_get_map: 全館地圖（無參數）", () => {
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [], count: 0 })),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({});
     const body = parseResult(res);
     expect(body.ok).toBe(true);
@@ -135,7 +161,7 @@ describe("kbdb_get_map: 全館地圖（無參數）", () => {
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [], count: 0 })),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({});
     const body = parseResult(res);
     const hintsText = JSON.stringify(body.hints);
@@ -149,7 +175,7 @@ describe("kbdb_get_map: 全館地圖（無參數）", () => {
   it("HTTP error → map_fetch_failed with recompute hint, not a crash", async () => {
     const { server, tools } = makeServer();
     const { env } = makeEnv(() => new Response("boom", { status: 500 }));
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({});
     expect(res.isError).toBe(true);
     const body = parseResult(res);
@@ -178,7 +204,7 @@ describe("kbdb_get_map: 單庫詳圖（library 參數）", () => {
     const { env, calls } = makeEnv(
       () => new Response(JSON.stringify({ success: true, map: DETAIL })),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({ library: "kb" });
     expect(calls[0].url.pathname).toBe("/map/kb");
     const map = (parseResult(res).data as { map: typeof DETAIL }).map;
@@ -197,7 +223,7 @@ describe("kbdb_get_map: 單庫詳圖（library 參數）", () => {
       triplet_count: "111",
     };
     const { env } = makeEnv(() => new Response(JSON.stringify({ success: true, map: raw })));
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({ library: "kb" });
     expect(res.isError).toBeUndefined();
     const map = (parseResult(res).data as { map: Record<string, unknown> }).map;
@@ -212,7 +238,7 @@ describe("kbdb_get_map: 單庫詳圖（library 參數）", () => {
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ success: false, error: "not found" }), { status: 404 }),
     );
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({ library: "ghost" });
     expect(res.isError).toBe(true);
     const body = parseResult(res);
@@ -233,7 +259,7 @@ describe("kbdb_get_map: 單庫詳圖（library 參數）", () => {
         },
       },
     } as unknown as Env;
-    registerGetMap(server, env);
+    registerGetMap(server, env, SERVICE);
     const res = await tools.get("kbdb_get_map")!.handler({ library: "kb" });
     expect(res.isError).toBe(true);
     expect(parseResult(res).error_code).toBe("internal_error");
@@ -258,7 +284,7 @@ describe("buildLibraryMapInstructions", () => {
           }),
         ),
     );
-    const text = await buildLibraryMapInstructions(env);
+    const text = await buildLibraryMapInstructions(env, SERVICE);
     expect(text).not.toBeNull();
     // design §4 格式：{library}：{narrative}｜核心：{top3}｜{triplet_count} triplets
     expect(text!).toContain("kb：leo 的知識庫主庫｜核心：00-INDEX、kb/00-INDEX、Gitea｜111 triplets");
@@ -269,7 +295,7 @@ describe("buildLibraryMapInstructions", () => {
 
   it("HTTP error → null（靜默略過，不 throw 不擋連線）", async () => {
     const { env } = makeEnv(() => new Response("boom", { status: 500 }));
-    await expect(buildLibraryMapInstructions(env)).resolves.toBeNull();
+    await expect(buildLibraryMapInstructions(env, SERVICE)).resolves.toBeNull();
   });
 
   it("binding throws → null（靜默略過）", async () => {
@@ -280,22 +306,22 @@ describe("buildLibraryMapInstructions", () => {
         },
       },
     } as unknown as Env;
-    await expect(buildLibraryMapInstructions(env)).resolves.toBeNull();
+    await expect(buildLibraryMapInstructions(env, SERVICE)).resolves.toBeNull();
   });
 
   it("empty libraries → null（沒地圖就不注入，不塞空段落）", async () => {
     const { env } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [], count: 0 })),
     );
-    await expect(buildLibraryMapInstructions(env)).resolves.toBeNull();
+    await expect(buildLibraryMapInstructions(env, SERVICE)).resolves.toBeNull();
   });
 
   it("caches within TTL：same isolate 第二次不再打 /map", async () => {
     const { env, calls } = makeEnv(
       () => new Response(JSON.stringify({ success: true, libraries: [KB_ROW], count: 1 })),
     );
-    const first = await buildLibraryMapInstructions(env);
-    const second = await buildLibraryMapInstructions(env);
+    const first = await buildLibraryMapInstructions(env, SERVICE);
+    const second = await buildLibraryMapInstructions(env, SERVICE);
     expect(second).toBe(first);
     expect(calls).toHaveLength(1);
   });
@@ -318,3 +344,95 @@ describe("renderLibraryMapLines", () => {
     expect(renderLibraryMapLines([])).toBeNull();
   });
 });
+
+// ── 2026-08-12：地圖也要跟著登入者的權限走 ────────────────────────────────────
+// 地圖本身就是情報（有哪些庫、各有多少關聯、核心 entity 是誰）——不能整館推給
+// 一個只有部分權限的帳號。
+describe("藏書地圖：登入身分（portal 資料面）", () => {
+  beforeEach(() => __resetLibraryMapInstructionsCacheForTests());
+
+  it("kbdb_get_map 打 /portal/data/map，帶登入者 session，不碰 KBDB 服務金鑰", async () => {
+    const { server, tools } = makeServer();
+    const { env, calls } = makePortalEnv(
+      () => new Response(JSON.stringify({ success: true, libraries: [KB_ROW], count: 1 })),
+    );
+    registerGetMap(server, env, PORTAL);
+    const res = await tools.get("kbdb_get_map")!.handler({});
+    expect(res.isError).toBeUndefined();
+    expect(calls).toHaveLength(1);
+    expect(calls[0].url.pathname).toBe("/portal/data/map");
+    expect(new Headers(calls[0].init!.headers as HeadersInit).get("Authorization")).toBe("Bearer sess-abc");
+  });
+
+  it("呼叫端硬塞 owner_id 也不生效（查詢範圍由帳號權限決定，不由呼叫端指定）", async () => {
+    const { server, tools } = makeServer();
+    const { env, calls } = makePortalEnv(
+      () => new Response(JSON.stringify({ success: true, libraries: [KB_ROW], count: 1 })),
+    );
+    registerGetMap(server, env, PORTAL);
+    await tools.get("kbdb_get_map")!.handler({ owner_id: "someone-else" });
+    expect(calls[0].url.searchParams.get("owner_id")).toBeNull();
+  });
+
+  it("查沒權限的庫 → 與「不存在」同一句話（不洩存在性）", async () => {
+    const { server, tools } = makeServer();
+    const { env } = makePortalEnv(() => new Response(JSON.stringify({ error: "找不到這筆資料" }), { status: 404 }));
+    registerGetMap(server, env, PORTAL);
+    const res = await tools.get("kbdb_get_map")!.handler({ library: "secret-lib" });
+    expect(res.isError).toBe(true);
+    const body = parseResult(res);
+    expect(body.error_code).toBe("map_not_found");
+    expect(String(body.human_message)).toContain("不在你被授權");
+  });
+
+  it("session 過期（401）→ session_expired，不說「地圖是空的」", async () => {
+    const { server, tools } = makeServer();
+    const { env } = makePortalEnv(
+      () => new Response(JSON.stringify({ error: "session 無效或已過期" }), { status: 401 }),
+    );
+    registerGetMap(server, env, PORTAL);
+    const res = await tools.get("kbdb_get_map")!.handler({});
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("session_expired");
+  });
+
+  it("舊 token（沒身分）→ identity_missing，且一個查詢都不發（fail-closed）", async () => {
+    const { server, tools } = makeServer();
+    const { env, calls } = makePortalEnv(() => new Response("{}"));
+    registerGetMap(server, env, STALE);
+    const res = await tools.get("kbdb_get_map")!.handler({});
+    expect(res.isError).toBe(true);
+    expect(parseResult(res).error_code).toBe("identity_missing");
+    expect(calls).toHaveLength(0);
+  });
+
+  it("instructions 的地圖也走 portal 資料面（連線開場推的庫名不得超出權限）", async () => {
+    const { env, calls } = makePortalEnv(
+      () => new Response(JSON.stringify({ success: true, libraries: [KB_ROW], count: 1 })),
+    );
+    const text = await buildLibraryMapInstructions(env, PORTAL);
+    expect(text).toContain("kb");
+    expect(calls[0].url.pathname).toBe("/portal/data/map");
+  });
+
+  it("**快取不跨身分共用**：不同 session 各自打一次，不會拿到別人的視野", async () => {
+    const { env, calls } = makePortalEnv(
+      () => new Response(JSON.stringify({ success: true, libraries: [KB_ROW], count: 1 })),
+    );
+    const other: KnowledgeIdentity = {
+      kind: "portal",
+      portal: { session: "sess-other", display_name: "小明", role: "user", libraries: ["notes"] },
+    };
+    await buildLibraryMapInstructions(env, PORTAL);
+    await buildLibraryMapInstructions(env, other);
+    expect(calls).toHaveLength(2); // 兩次真的各打一次
+    await buildLibraryMapInstructions(env, PORTAL);
+    expect(calls).toHaveLength(2); // 同一 session 第二次才吃快取
+  });
+
+  it("舊 token → 不給地圖（instructions 不外洩任何庫名）", async () => {
+    const { env, calls } = makePortalEnv(() => new Response("{}"));
+    expect(await buildLibraryMapInstructions(env, STALE)).toBeNull();
+    expect(calls).toHaveLength(0);
+  });
+});