diff --git a/memhub/apps/cli/src/cli.ts b/memhub/apps/cli/src/cli.ts
index 159bb5c..7c7ca90 100644
--- a/memhub/apps/cli/src/cli.ts
+++ b/memhub/apps/cli/src/cli.ts
@@ -2018,12 +2018,17 @@ async function runCommand(
     return sourceProgressExitCode(document);
   }
   if (named === "profile") {
+    const profileFlags = arguments_.slice(1);
     if (
-      arguments_.filter((item) => item === "--json").length > 1 ||
-      arguments_.slice(1).some((value) => value !== "--json")
+      profileFlags.filter((item) => item === "--json").length > 1 ||
+      profileFlags.filter((item) => item === "--versions").length > 1 ||
+      profileFlags.some((value) => value !== "--json" && value !== "--versions")
     ) {
       return usage();
     }
+    if (profileFlags.includes("--versions")) {
+      return await profileVersionsCommand(environment, { asJson, userId });
+    }
     const connected = await connectRuntime(environment, {
       readerTimeoutMs: 15_000,
     });
@@ -3888,6 +3893,108 @@ async function emitModelReceipt(
 
 /** Attach to a verified Runtime, telling a stopped one (exit 3) from one
  * that is up but unusable (exit 1). */
+/**
+ * `memhub profile --versions`: the long-term profile's L0 version chains,
+ * latest first, so a value that replaced a better one can be found by id.
+ */
+async function profileVersionsCommand(
+  environment: NodeJS.ProcessEnv,
+  options: { asJson: boolean; userId?: string },
+): Promise<number> {
+  const fail = (state: string, code: string, exitCode: number): number => {
+    emit(
+      options.asJson
+        ? `${JSON.stringify({ schema_version: 2, product: PRODUCT, state, code })}\n`
+        : `画像版本读取失败：${code}\n`,
+    );
+    return exitCode;
+  };
+  const connected = await connectRuntime(environment, {
+    readerTimeoutMs: 15_000,
+  });
+  if (!connected.ok) {
+    return fail("unavailable", connected.code, connected.exitCode);
+  }
+  const outcome = await connected.reader<unknown>(
+    "/api/v2/user-profile/versions",
+    userIdParameters(options.userId),
+  );
+  const chains = outcome.state === "ok" ? profileChains(outcome.data) : null;
+  if (outcome.state !== "ok" || chains === null) {
+    return fail(
+      outcome.state === "ok" ? "invalid" : outcome.state,
+      outcome.state === "ok" ? "response_invalid" : outcome.code,
+      EXIT_FAILED,
+    );
+  }
+  if (options.asJson) {
+    emit(
+      `${JSON.stringify({
+        schema_version: 2,
+        product: PRODUCT,
+        state: "ok",
+        ...(outcome.data as object),
+      })}\n`,
+    );
+    return EXIT_OK;
+  }
+  if (chains.length === 0) {
+    emit("尚未形成用户画像版本。\n");
+    return EXIT_OK;
+  }
+  const lines: string[] = [];
+  for (const chain of chains) {
+    lines.push(`画像 ${chain.memory_id}（${chain.status}）`);
+    for (const version of chain.versions) {
+      const when =
+        typeof version.gmt_created === "number"
+          ? new Date(version.gmt_created * 1000).toISOString()
+          : "时间未知";
+      lines.push(
+        `  ${version.current ? "*" : " "} ${version.memory_id}  ${when}  ${version.content}`,
+      );
+    }
+  }
+  lines.push(
+    "* 表示当前生效的版本；删除错误版本：memhub memories delete <memory-id> --yes",
+  );
+  emit(`${lines.join("\n")}\n`);
+  return EXIT_OK;
+}
+
+type ProfileChainView = {
+  memory_id: string;
+  status: string;
+  versions: {
+    memory_id: string;
+    content: string;
+    gmt_created?: number | null;
+    current: boolean;
+  }[];
+};
+
+function profileChains(value: unknown): ProfileChainView[] | null {
+  if (!value || typeof value !== "object") return null;
+  const chains = (value as { chains?: unknown }).chains;
+  if (!Array.isArray(chains)) return null;
+  const valid = chains.every(
+    (chain) =>
+      chain &&
+      typeof chain === "object" &&
+      typeof (chain as ProfileChainView).memory_id === "string" &&
+      typeof (chain as ProfileChainView).status === "string" &&
+      Array.isArray((chain as ProfileChainView).versions) &&
+      (chain as ProfileChainView).versions.every(
+        (version) =>
+          version &&
+          typeof version.memory_id === "string" &&
+          typeof version.content === "string" &&
+          typeof version.current === "boolean",
+      ),
+  );
+  return valid ? (chains as ProfileChainView[]) : null;
+}
+
 async function connectRuntime(
   environment: NodeJS.ProcessEnv,
   options?: { readerTimeoutMs?: number },
diff --git a/memhub/apps/cli/src/command-catalog.ts b/memhub/apps/cli/src/command-catalog.ts
index 1929ba8..9bbb0aa 100644
--- a/memhub/apps/cli/src/command-catalog.ts
+++ b/memhub/apps/cli/src/command-catalog.ts
@@ -434,9 +434,18 @@ export const COMMANDS: readonly CommandDescriptor[] = [
   },
   {
     name: "profile",
-    summary: "读取 SDK 组装后的用户长期画像（L0 + 已启用的长期画像补充）。",
-    usage: "memhub profile [--user-id <id>] [--json]",
-    options: [USER_ID_OPTION, JSON_OPTION],
+    summary:
+      "读取 SDK 组装后的用户长期画像（L0 + 已启用的长期画像补充）；--versions 列出 L0 画像的版本链（最新在前，* 为当前版本）。",
+    usage: "memhub profile [--versions] [--user-id <id>] [--json]",
+    options: [
+      {
+        flag: "--versions",
+        summary:
+          "列出 L0 基本信息的版本链（get_user_basic_info），用于找出覆盖了正确值的错误版本。",
+      },
+      USER_ID_OPTION,
+      JSON_OPTION,
+    ],
     exit_codes: RUNTIME_EXITS,
   },
   {
diff --git a/memhub/apps/cli/src/core-client.ts b/memhub/apps/cli/src/core-client.ts
index dbc846e..52d64f6 100644
--- a/memhub/apps/cli/src/core-client.ts
+++ b/memhub/apps/cli/src/core-client.ts
@@ -17,6 +17,7 @@ const READ_ONLY_PATHS = [
   "/api/v2/home-summary",
   "/api/v2/memory-library",
   "/api/v2/user-profile",
+  "/api/v2/user-profile/versions",
 ] as const;
 const SDK_MEMORY_DETAIL = /^\/api\/v2\/memories\/[A-Za-z0-9][\w.-]{0,127}$/;
 /** Status of one `POST /api/v2/memories` addition, by its request id. */
diff --git a/memhub/apps/cli/src/profile-versions-cli.test.ts b/memhub/apps/cli/src/profile-versions-cli.test.ts
new file mode 100644
index 0000000..f673960
--- /dev/null
+++ b/memhub/apps/cli/src/profile-versions-cli.test.ts
@@ -0,0 +1,166 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { run } from "./cli.js";
+
+const transport = vi.hoisted(() => ({
+  get: vi.fn(),
+  post: vi.fn(),
+  put: vi.fn(),
+  patch: vi.fn(),
+  delete: vi.fn(),
+}));
+vi.mock("axios", () => ({
+  default: {
+    create: vi.fn(() => transport),
+    get: vi.fn(),
+    post: vi.fn(),
+    isAxiosError: () => false,
+  },
+}));
+
+const runtime = vi.hoisted(() => ({
+  inspectRuntimeStatus: vi.fn(),
+  discoverRuntimeAttachment: vi.fn(),
+}));
+vi.mock("@one-memory/runtime-control", async (importOriginal) => ({
+  ...(await importOriginal<typeof import("@one-memory/runtime-control")>()),
+  ...runtime,
+}));
+
+const VERSIONS = {
+  user_id: "wife",
+  request_id: "r-versions",
+  elapsed_ms: 2,
+  chains: [
+    {
+      memory_id: "l0-head",
+      content: "The user's name is Fei.",
+      status: "active",
+      memory_at: null,
+      gmt_created: 1_790_000_100,
+      basic_info: { name: "Fei" },
+      versions: [
+        {
+          memory_id: "l0-head",
+          content: "The user's name is Fei.",
+          memory_at: null,
+          gmt_created: 1_790_000_100,
+          current: true,
+        },
+        {
+          memory_id: "l0-old",
+          content: "The user's name is 费天翔.",
+          memory_at: null,
+          gmt_created: 1_790_000_000,
+          current: false,
+        },
+      ],
+    },
+  ],
+};
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  for (const method of Object.values(transport)) method.mockReset();
+  runtime.inspectRuntimeStatus.mockResolvedValue({
+    state: "running",
+    code: "runtime_verified",
+    instanceId: "instance-1",
+    host: "127.0.0.1",
+    port: 8765,
+    version: "1.2.3",
+  });
+  runtime.discoverRuntimeAttachment.mockResolvedValue({
+    instanceId: "instance-1",
+    apiToken: "synthetic-runtime-token",
+    host: "127.0.0.1",
+    port: 8765,
+    servicePid: 4242,
+    health: {
+      status: "ok",
+      service: "one-memory-core",
+      version: "1.2.3",
+      instance_id: "instance-1",
+    },
+  });
+  transport.get.mockImplementation(async (url: string) =>
+    url === "/api/v2/user-profile/versions"
+      ? { status: 200, data: VERSIONS }
+      : { status: 404, data: {} },
+  );
+});
+
+describe("memhub profile --versions", () => {
+  it("reads the L0 version chain for the named user", async () => {
+    const result = await capturedRun([
+      "profile",
+      "--versions",
+      "--user-id",
+      "wife",
+      "--json",
+    ]);
+    expect(result.code).toBe(0);
+    expect(transport.get).toHaveBeenCalledWith(
+      "/api/v2/user-profile/versions",
+      { params: { user_id: "wife" } },
+    );
+    const document = JSON.parse(result.stdout);
+    expect(document.state).toBe("ok");
+    expect(document.chains[0].versions).toHaveLength(2);
+  });
+
+  it("marks the current version in text and names no user for local", async () => {
+    const result = await capturedRun(["profile", "--versions"]);
+    expect(result.code).toBe(0);
+    const [url, config] = transport.get.mock.calls[0] ?? [];
+    expect(url).toBe("/api/v2/user-profile/versions");
+    expect(config?.params?.user_id).toBeUndefined();
+    expect(result.stdout).toContain("* l0-head");
+    expect(result.stdout).toContain("  l0-old");
+    expect(result.stdout).toContain("费天翔");
+  });
+
+  it("refuses an unknown flag and a repeated --versions", async () => {
+    expect((await capturedRun(["profile", "--version-chain"])).code).toBe(2);
+    expect(
+      (await capturedRun(["profile", "--versions", "--versions"])).code,
+    ).toBe(2);
+    expect(transport.get).not.toHaveBeenCalled();
+  });
+
+  it("reports a malformed answer as invalid", async () => {
+    transport.get.mockResolvedValue({ status: 200, data: { chains: "x" } });
+    const result = await capturedRun(["profile", "--versions", "--json"]);
+    expect(result.code).toBe(1);
+    expect(JSON.parse(result.stdout).code).toBe("response_invalid");
+  });
+});
+
+async function capturedRun(arguments_: string[]) {
+  let stdout = "";
+  let stderr = "";
+  const stdoutSpy = vi
+    .spyOn(process.stdout, "write")
+    .mockImplementation((chunk) => {
+      stdout += String(chunk);
+      return true;
+    });
+  const stderrSpy = vi
+    .spyOn(process.stderr, "write")
+    .mockImplementation((chunk) => {
+      stderr += String(chunk);
+      return true;
+    });
+  try {
+    return {
+      code: await run(arguments_, {
+        ONE_MEMORY_DATA_DIR: "/synthetic/data",
+      }),
+      stdout,
+      stderr,
+    };
+  } finally {
+    stdoutSpy.mockRestore();
+    stderrSpy.mockRestore();
+  }
+}
diff --git a/memhub/apps/core/src/one_memory/api.py b/memhub/apps/core/src/one_memory/api.py
index 419814f..8275507 100644
--- a/memhub/apps/core/src/one_memory/api.py
+++ b/memhub/apps/core/src/one_memory/api.py
@@ -1,4 +1,5 @@
 import asyncio
+import hashlib
 import json
 import logging
 import os
@@ -103,6 +104,7 @@ from one_memory.hy_sdk_types import (
     HySdkError,
     HySdkMemoryPage,
     HySdkMemoryRecord,
+    HySdkProfileVersions,
     HySdkRawHit,
     HySdkRawPage,
     HySdkRawRecord,
@@ -110,8 +112,10 @@ from one_memory.hy_sdk_types import (
     HySdkUserProfile,
     LibraryHit,
     library_keyword_hits,
+    parse_sdk_lane_search,
     parse_sdk_raw_search,
     parse_sdk_search,
+    raw_turn_messages,
 )
 from one_memory.imports.access import (
     AuthorizedSourceRoot,
@@ -230,6 +234,13 @@ from one_memory.sdk_memory_qa import (
 from one_memory.sdk_memory_runtime import SdkMemoryRuntime
 from one_memory.sdk_migration_log import error_chain_text, error_frames
 from one_memory.sdk_read_handle import ActiveProfileReadHandle
+from one_memory.sdk_search_options import (
+    MEMORY_LAYERS,
+    MEMORY_STATUSES,
+    SdkSearchFilters,
+    SearchLane,
+    split_csv,
+)
 from one_memory.sdk_write_processor import SdkWriteCoordinator
 from one_memory.secrets import (
     KeyringSecretStore,
@@ -237,6 +248,7 @@ from one_memory.secrets import (
     SecretStoreErrorCode,
     SecretStoreUnavailableError,
 )
+from one_memory.semantic_deadline import SemanticMemoryHit
 from one_memory.service_levels import (
     ResourceLimit,
     ServiceLevel,
@@ -399,6 +411,23 @@ class CreateImportJobRequest(BaseModel):
     operation: Literal["history", "sync"] = "history"
 
 
+class CreateImportJobV2Request(CreateImportJobRequest):
+    """`POST /api/v2/import-jobs`: v1's body plus whose lane it runs on."""
+
+    model_config = ConfigDict(extra="forbid")
+
+    #: Only Hermes holds roots for a user other than `local`.
+    user_id: UserId = DEFAULT_USER_ID
+
+
+class SourceSyncNowRequest(BaseModel):
+    """Optional body of `POST /api/v2/sources/{id}/sync`."""
+
+    model_config = ConfigDict(extra="forbid")
+
+    user_id: UserId = DEFAULT_USER_ID
+
+
 class ConnectSourcesRequest(BaseModel):
     source_ids: tuple[str, ...] = Field(min_length=1, max_length=32)
     #: Whose grant this is. Only Hermes may connect a root for a user other
@@ -454,13 +483,83 @@ class SdkUserProfileResponse(BaseModel):
     elapsed_ms: float = Field(ge=0)
 
 
+class SdkProfileVersionsResponse(HySdkProfileVersions):
+    model_config = ConfigDict(frozen=True, extra="forbid")
+
+    user_id: str
+
+
+class SdkRawMessage(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    #: user / assistant (tool and system if the SDK kept them); "" if unnamed.
+    role: str
+    content: str
+
+
+class SdkRawItem(HySdkRawRecord):
+    """One SDK raw turn as `/api/v2/raw` lists it.
+
+    The SDK record's fields, plus what tracing an import needs: the turn's
+    messages with their roles (parsed from the SDK's `[role]: text` lines),
+    a `sha256:` hash of the stored content computed by Core (the SDK keeps
+    none), and `created`, when the SDK stored it.
+    """
+
+    model_config = ConfigDict(frozen=True, extra="forbid")
+
+    messages: tuple[SdkRawMessage, ...] = ()
+    #: The one role of a single-message turn; None for a mixed turn.
+    role: str | None = None
+    content_hash: str
+    created: datetime | None = None
+
+    @classmethod
+    def of(cls, record: HySdkRawRecord) -> "SdkRawItem":
+        messages = tuple(
+            SdkRawMessage(role=role, content=text)
+            for role, text in raw_turn_messages(record.content)
+        )
+        roles = {message.role for message in messages}
+        return cls(
+            **record.model_dump(),
+            messages=messages,
+            role=next(iter(roles)) if len(roles) == 1 and "" not in roles else None,
+            content_hash="sha256:" + hashlib.sha256(record.content.encode("utf-8")).hexdigest(),
+            created=(
+                datetime.fromtimestamp(record.gmt_created, tz=UTC)
+                if record.gmt_created is not None
+                else None
+            ),
+        )
+
+
 class SdkRawPage(BaseModel):
     model_config = ConfigDict(extra="forbid")
 
-    items: tuple[HySdkRawRecord, ...] = ()
+    items: tuple[SdkRawItem, ...] = ()
     total: int = Field(ge=0)
     offset: int = Field(ge=0)
     limit: int = Field(ge=1, le=500)
+    #: Set when a time filter was applied to this page in Core (the SDK list
+    #: has none): `items` is the page's rows inside the range, `total` stays
+    #: the SDK's count before that filter.
+    time_filtered: bool = False
+
+
+class SdkLayerCounts(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    #: Every SDK layer, zero when empty.
+    layers: dict[str, int]
+    total: int = Field(ge=0)
+    #: The statuses counted, or None for the defaults (active; raw: active+shadow).
+    statuses: tuple[str, ...] | None = None
+
+
+#: Raw lifecycle states that are still a kept conversation. Pro marks a raw
+#: SHADOW once extraction succeeds; lite leaves it ACTIVE.
+RAW_STATUSES = ("active", "shadow")
 
 
 class MemoryProcessingBlock(BaseModel):
@@ -605,8 +704,15 @@ class ManualExtractReceipt(BaseModel):
     batches_current: int
 
 
-class AskMemoryRequest(BaseModel):
-    model_config = ConfigDict(extra="forbid")
+class AskMemoryRequest(SdkSearchFilters):
+    """Ask over one user's memories.
+
+    The `SdkSearchFilters` fields (floors, rerank, source/session/agent/time
+    and layer filters) reach the retrieval search. Scene, reader and search
+    mode stay fixed: the answer cites chat memories read back by id.
+    """
+
+    model_config = ConfigDict(extra="forbid", frozen=False)
 
     question: str = Field(min_length=1, max_length=2_000)
     scope: str = Field(default="all-apps", min_length=1, max_length=512)
@@ -1964,7 +2070,11 @@ def create_app(
         dependencies=protected,
     )
     async def list_sources() -> list[SourceResponse]:
-        detection = _detection(app)
+        return await sources_for(DEFAULT_USER_ID)
+
+    async def sources_for(user_id: str) -> list[SourceResponse]:
+        """One user's sources. `local`'s are the App's; another user sees Hermes only."""
+        detection = _detection(app) if user_id == DEFAULT_USER_ID else {}
         # Read in threads. The desktop polls this every few seconds, and both
         # reads below are synchronous SQLite — the totals across every source,
         # then a grant receipt per source. Made on the loop, as they were,
@@ -1974,7 +2084,7 @@ def create_app(
         # The totals are also not counted again for each ask: counting is a
         # pass over every row, and answering this took up to 6.70s during a
         # catch-up, nearly all of it the same count repeated.
-        totals_by_source = await app.state.source_totals.by_source(user_id="local")
+        totals_by_source = await app.state.source_totals.by_source(user_id=user_id)
         # Status polling must not trigger history discovery: detect can walk an
         # entire host tree and recheck the grant in SQLite for every file, with
         # concurrent polls duplicating that work. Only the explicit detect
@@ -1984,28 +2094,49 @@ def create_app(
         def describe() -> list[SourceResponse]:
             grant_store = _grant_store(app)
             config_store = _config_store(app)
-            return [
-                _source_response(
-                    registration,
-                    grant_store.receipt(user_id="local", source_id=source_id),
-                    config_store.sync_enabled(source_id),
-                    detection.get(source_id),
-                    runtime_settings.source_home,
-                    totals_by_source.get(source_id, (0, 0)),
-                    candidate_change_reason=app.state.source_candidate_store.change_reason(
-                        registration
-                    ),
-                    authorization_state=grant_store.authorization_state(
-                        user_id="local",
-                        source_id=source_id,
-                        candidate=registration.candidate.path,
-                    ),
+            responses = []
+            for source_id, registration in _catalog(app).items():
+                if user_id != DEFAULT_USER_ID and source_id not in MULTI_USER_SOURCES:
+                    continue
+                if user_id != DEFAULT_USER_ID:
+                    # Another user's Hermes is the profile root they were
+                    # granted, not the App's candidate.
+                    registration = _registration_at_grant(grant_store, registration, user_id)
+                responses.append(
+                    _source_response(
+                        registration,
+                        grant_store.receipt(user_id=user_id, source_id=source_id),
+                        _lane_sync_enabled(config_store, lane_key(user_id, source_id)),
+                        detection.get(source_id),
+                        runtime_settings.source_home,
+                        totals_by_source.get(source_id, (0, 0)),
+                        candidate_change_reason=(
+                            app.state.source_candidate_store.change_reason(registration)
+                            if user_id == DEFAULT_USER_ID
+                            else "multi_user_grant"
+                        ),
+                        authorization_state=grant_store.authorization_state(
+                            user_id=user_id,
+                            source_id=source_id,
+                            candidate=registration.candidate.path,
+                        ),
+                    )
                 )
-                for source_id, registration in _catalog(app).items()
-            ]
+            return responses
 
         return await asyncio.to_thread(describe)
 
+    @app.get(
+        "/api/v2/sources",
+        response_model=list[SourceResponse],
+        dependencies=strict,
+    )
+    async def list_sources_v2(
+        user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+    ) -> list[SourceResponse]:
+        """`GET /api/v1/sources` for one user: `local` (the default) reads the App's."""
+        return await sources_for(user_id)
+
     @app.get(
         "/api/v1/adapters",
         dependencies=protected,
@@ -2523,20 +2654,37 @@ def create_app(
         dependencies=protected,
     )
     async def create_import_job(request: CreateImportJobRequest) -> ImportJob:
-        _require_registration(app, request.source_id)
-        if request.source_id not in _supervisor(app).adapters:
+        return await create_job_on(request.source_id, request.operation, DEFAULT_USER_ID)
+
+    async def create_job_on(
+        source_id: str, operation: Literal["history", "sync"], user_id: str
+    ) -> ImportJob:
+        """Start an import on one user's lane of a source (`local`: the bare id)."""
+        _require_registration(app, source_id)
+        _require_multi_user_source(source_id, user_id)
+        lane = lane_key(user_id, source_id)
+        if lane not in _supervisor(app).adapters:
             raise HTTPException(status_code=409, detail="source_not_authorized")
         try:
             job = await asyncio.to_thread(
                 _supervisor(app).create_job,
-                request.source_id,
-                operation=request.operation,
+                lane,
+                operation=operation,
             )
         except SourceAccessError as error:
             raise HTTPException(status_code=409, detail=error.code) from None
         _supervisor(app).enqueue(job.job_id)
         return job
 
+    @app.post(
+        "/api/v2/import-jobs",
+        response_model=ImportJob,
+        dependencies=strict,
+    )
+    async def create_import_job_v2(request: CreateImportJobV2Request) -> ImportJob:
+        """`POST /api/v1/import-jobs` on one user's lane (Hermes only for another user)."""
+        return await create_job_on(request.source_id, request.operation, request.user_id)
+
     @app.post(
         "/api/v1/sources/connect",
         response_model=ConnectSourcesResponse,
@@ -2786,14 +2934,55 @@ def create_app(
         dependencies=protected,
     )
     async def trigger_live_sync(source_id: str) -> ImportJob:
+        return await sync_lane(source_id, DEFAULT_USER_ID)
+
+    async def sync_lane(source_id: str, user_id: str) -> ImportJob:
         _require_registration(app, source_id)
+        _require_multi_user_source(source_id, user_id)
         # Asked for by hand, so it reports a job even when nothing was new;
         # `live_sync_unavailable` keeps meaning the source cannot be synced.
-        job = await _live_sync(app).trigger_now(source_id)
+        job = await _live_sync(app).trigger_now(lane_key(user_id, source_id))
         if job is None:
             raise HTTPException(status_code=409, detail="live_sync_unavailable")
         return job
 
+    @app.post(
+        "/api/v2/sources/{source_id}/sync",
+        response_model=ImportJob,
+        dependencies=strict,
+    )
+    async def trigger_live_sync_v2(
+        source_id: str,
+        request: SourceSyncNowRequest | None = None,
+    ) -> ImportJob:
+        """`POST /api/v1/sources/{id}/sync` on one user's lane; the body is optional."""
+        return await sync_lane(source_id, request.user_id if request else DEFAULT_USER_ID)
+
+    @app.get(
+        "/api/v2/import-jobs",
+        response_model=list[ImportJob],
+        dependencies=strict,
+    )
+    def list_import_jobs_v2(
+        user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+    ) -> list[ImportJob]:
+        return list_import_jobs(user_id=user_id)
+
+    @app.get(
+        "/api/v2/import-jobs/{job_id}",
+        response_model=ImportJob,
+        dependencies=strict,
+    )
+    def get_import_job_v2(
+        job_id: str,
+        user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+    ) -> ImportJob:
+        """One job; another user's job answers exactly like a missing one."""
+        job = _require_job(app, job_id)
+        if job.user_id != user_id:
+            raise HTTPException(status_code=404, detail="job_not_found")
+        return job
+
     @app.get(
         "/api/v1/import-jobs/{job_id}",
         response_model=ImportJob,
@@ -3156,6 +3345,11 @@ def create_app(
         window_id: str | None = Query(default=None, min_length=1, max_length=64),
         scene: Literal["all", "chat", "working", "coding"] = Query(default="all"),
         user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+        layers: list[str] | None = Query(default=None),  # noqa: B008
+        layer: list[str] | None = Query(default=None),  # noqa: B008
+        exclude_sources: list[str] | None = Query(default=None),  # noqa: B008
+        session_ids: list[str] | None = Query(default=None),  # noqa: B008
+        agent_ids: list[str] | None = Query(default=None),  # noqa: B008
     ) -> HySdkMemoryPage:
         """One page of memories across chat, working and coding.
 
@@ -3170,7 +3364,29 @@ def create_app(
         and are cut from the same matches, so pages never overlap or skip. A
         `window_id` that expired or was searched with other filters searches
         again and answers page 1 with `window_reset: true`.
+
+        `layers` (or `layer`), `statuses`, `exclude_sources`, `session_ids`
+        and `agent_ids` may each repeat or be comma separated. Layers exist in
+        the chat store only, so a layer filter lists the chat store (graph
+        layers included) and refuses `scene=working|coding`. `l1_raw` belongs
+        to `/api/v2/raw`.
         """
+        statuses = _library_values(statuses, MEMORY_STATUSES, "memory_status_unknown")
+        chosen_layers = _library_values(
+            [*(layers or ()), *(layer or ())], MEMORY_LAYERS, "memory_layer_unknown"
+        )
+        if chosen_layers and scene in {"working", "coding"}:
+            raise HTTPException(status_code=422, detail="memory_layers_require_chat_scene")
+        filters = {
+            name: values
+            for name, values in (
+                ("layers", chosen_layers),
+                ("exclude_sources", split_csv(exclude_sources)),
+                ("session_ids", split_csv(session_ids)),
+                ("agent_ids", split_csv(agent_ids)),
+            )
+            if values
+        }
         try:
             client = await _sdk_client_handle(app).client()
             search_query = (query or "").strip()
@@ -3191,16 +3407,20 @@ def create_app(
                     window_id=window_id,
                     scene=scene,
                     user_id=user_id,
+                    filters=filters,
                 )
             raw = await asyncio.to_thread(
                 client.list_memories,
                 user_id=user_id,
-                scene=scene,
+                # Layers are chat-store rows: `scene="all"` would still add
+                # every working/coding experience to a layer-filtered page.
+                scene=None if chosen_layers else scene,
                 statuses=list(statuses),
                 include_sources=[source] if source else None,
                 offset=offset,
                 limit=limit,
                 order="desc",
+                **filters,
             )
             page, skipped = HySdkMemoryPage.from_sdk_skipping_invalid(
                 raw, limit=limit, offset=offset
@@ -3212,6 +3432,51 @@ def create_app(
         except Exception as error:
             raise _sdk_http_error(error, "hy_memory_list_failed") from None
 
+    @app.get(
+        "/api/v2/memory-library/layers",
+        response_model=SdkLayerCounts,
+        dependencies=strict,
+    )
+    async def sdk_memory_layers(
+        statuses: list[str] | None = Query(default=None),  # noqa: B008
+        user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+    ) -> SdkLayerCounts:
+        """How many memories each SDK layer holds for one user.
+
+        One `list_memories(layers=[layer], limit=1)` per layer, read for its
+        total only. Without `statuses` every layer counts its active rows,
+        and `l1_raw` counts active and shadow raws: pro shadows a raw once
+        it is extracted, and both are the user's kept conversations.
+        """
+        chosen = _library_values(statuses or [], MEMORY_STATUSES, "memory_status_unknown")
+        try:
+            client = await _sdk_client_handle(app).client()
+
+            def count(layer: str) -> int:
+                layer_statuses = chosen or (list(RAW_STATUSES) if layer == "l1_raw" else ["active"])
+                raw = client.list_memories(
+                    user_id=user_id,
+                    layers=[layer],
+                    statuses=layer_statuses,
+                    limit=1,
+                    offset=0,
+                    order="desc",
+                )
+                return _list_total(raw)
+
+            counts = await asyncio.to_thread(
+                lambda: {layer: count(layer) for layer in MEMORY_LAYERS}
+            )
+        except HTTPException:
+            raise
+        except Exception as error:
+            raise _sdk_http_error(error, "hy_memory_list_failed") from None
+        return SdkLayerCounts(
+            layers=counts,
+            total=sum(counts.values()),
+            statuses=tuple(chosen) if chosen else None,
+        )
+
     @app.get(
         "/api/v2/memories/graph",
         response_model=MemoryGraphResponse,
@@ -3222,13 +3487,30 @@ def create_app(
         offset: int = Query(default=0, ge=0),
         source: str | None = Query(default=None, min_length=1),
         user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+        layers: list[str] | None = Query(default=None),  # noqa: B008
+        session_ids: list[str] | None = Query(default=None),  # noqa: B008
+        exclude_sources: list[str] | None = Query(default=None),  # noqa: B008
     ) -> MemoryGraphResponse:
         """The memory map on SDK authority: SDK memories plus the Kuzu overlay.
 
         Memories come from the public client; only the overlay reads Kuzu
         (`hy_graph_projection`, the visualization exception). Shape matches
         the legacy map so the same view draws both.
+
+        `layers` maps the chat store's chosen layers only (as on the library);
+        `session_ids` and `exclude_sources` narrow the listed memories. Each
+        may repeat or be comma separated. The overlay is not filtered.
         """
+        chosen_layers = _library_values(layers or [], MEMORY_LAYERS, "memory_layer_unknown")
+        filters = {
+            name: values
+            for name, values in (
+                ("layers", chosen_layers),
+                ("session_ids", split_csv(session_ids)),
+                ("exclude_sources", split_csv(exclude_sources)),
+            )
+            if values
+        }
         try:
             client = await _sdk_client_handle(app).client()
             # The map visualizes the active source scope, independently of the
@@ -3236,17 +3518,20 @@ def create_app(
             raw = await asyncio.to_thread(
                 client.list_memories,
                 user_id=user_id,
-                scene="all",
+                scene=None if chosen_layers else "all",
                 statuses=["active"],
                 include_sources=[source] if source else None,
                 limit=limit,
                 offset=offset,
                 order="desc",
+                **filters,
             )
             page, skipped = HySdkMemoryPage.from_sdk_skipping_invalid(
                 raw, limit=limit, offset=offset
             )
             _log_skipped_sdk_memories(skipped)
+        except HTTPException:
+            raise
         except Exception as error:
             raise _sdk_http_error(error, "hy_memory_list_failed") from None
         vdb = raw.get("vdb") if isinstance(raw, dict) else None
@@ -3370,6 +3655,27 @@ def create_app(
             raise _sdk_http_error(error, "hy_memory_profile_read_failed") from None
         return SdkUserProfileResponse.model_validate(profile.model_dump())
 
+    @app.get(
+        "/api/v2/user-profile/versions",
+        response_model=SdkProfileVersionsResponse,
+        dependencies=strict,
+    )
+    async def sdk_user_profile_versions(
+        user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+    ) -> SdkProfileVersionsResponse:
+        """The long-term profile's L0 version chains (`get_user_basic_info`).
+
+        Each chain is one L0 head with its versions latest first, so a value
+        that replaced a better one can be found and deleted by id.
+        """
+        try:
+            client = await _sdk_client_handle(app).client()
+            value = await asyncio.to_thread(client.get_user_basic_info, user_id=user_id)
+            versions = HySdkProfileVersions.from_sdk(value)
+        except Exception as error:
+            raise _sdk_http_error(error, "hy_memory_profile_read_failed") from None
+        return SdkProfileVersionsResponse(user_id=user_id, **versions.model_dump())
+
     @app.get(
         "/api/v2/memories/{memory_id}",
         response_model=HySdkMemoryRecord,
@@ -3502,25 +3808,69 @@ def create_app(
         dependencies=strict,
     )
     async def sdk_raw_library(
-        source: str | None = Query(default=None, min_length=1),
+        source: list[str] | None = Query(default=None),  # noqa: B008
         offset: int = Query(default=0, ge=0),
         limit: int = Query(default=100, ge=1, le=500),
         user_id: str = Query(default=DEFAULT_USER_ID, pattern=USER_ID_PATTERN),
+        exclude_sources: list[str] | None = Query(default=None),  # noqa: B008
+        session_id: list[str] | None = Query(default=None),  # noqa: B008
+        statuses: list[str] | None = Query(default=None),  # noqa: B008
+        after: float | None = Query(default=None, ge=0),
+        before: float | None = Query(default=None, ge=0),
+        order: Literal["desc", "asc"] = Query(default="desc"),
     ) -> SdkRawPage:
+        """One page of a user's SDK raw turns: what was imported, as stored.
+
+        The SDK lists raw only when asked for `layers=["l1_raw"]`, and only
+        active rows unless told otherwise. Pro shadows a raw once extraction
+        succeeds, so a raw page reads active and shadow (`statuses` narrows
+        it). `source` and `session_id` (a conversation) may repeat or be comma
+        separated. `after`/`before` (unix seconds, against the conversation
+        time, else the stored time) have no SDK list filter: they cut this
+        page in Core and mark it `time_filtered`.
+        """
+        chosen_statuses = _library_values(
+            statuses or [], MEMORY_STATUSES, "memory_status_unknown"
+        ) or list(RAW_STATUSES)
+        sources = split_csv(source)
+        excluded = split_csv(exclude_sources)
+        sessions = split_csv(session_id)
         try:
             client = await _sdk_client_handle(app).client()
             value = await asyncio.to_thread(
                 client.list_memories,
                 user_id=user_id,
                 layers=["l1_raw"],
-                include_sources=[source] if source else None,
+                statuses=chosen_statuses,
+                include_sources=sources or None,
+                exclude_sources=excluded or None,
+                session_ids=sessions or None,
                 offset=offset,
                 limit=limit,
+                order=order,
             )
             page = HySdkRawPage.from_memory_list(value, limit=limit, offset=offset)
+        except HTTPException:
+            raise
         except Exception as error:
             raise _sdk_http_error(error, "hy_memory_raw_list_failed") from None
-        return SdkRawPage(items=page.raw, total=page.total, offset=offset, limit=limit)
+        records = page.raw
+        time_filtered = after is not None or before is not None
+        if time_filtered:
+            records = tuple(
+                record
+                for record in records
+                if (at := record.memory_at or record.gmt_created) is not None
+                and (after is None or at >= after)
+                and (before is None or at < before)
+            )
+        return SdkRawPage(
+            items=tuple(SdkRawItem.of(record) for record in records),
+            total=page.total,
+            offset=offset,
+            limit=limit,
+            time_filtered=time_filtered,
+        )
 
     @app.post(
         "/api/v2/memories/ask",
@@ -3543,7 +3893,7 @@ def create_app(
         )
         try:
             answer = await _sdk_request_answerer(app).answer(
-                request.question, user_id=request.user_id
+                request.question, user_id=request.user_id, **_ask_filters(request)
             )
         except MemoryAnswerError as error:
             raise HTTPException(status_code=503, detail=str(error)) from None
@@ -3584,7 +3934,7 @@ def create_app(
             final: dict[str, object] | None = None
             try:
                 async for event in answerer.answer_stream(
-                    request.question, user_id=request.user_id
+                    request.question, user_id=request.user_id, **_ask_filters(request)
                 ):
                     if event.get("type") == "final":
                         final = event
@@ -3629,11 +3979,15 @@ def create_app(
         await _require_external_recall_scope(
             app, http_request, request.scope, request.workspace_path
         )
+        # A caller's pass-through search options need the SDK target, which
+        # carries them; without any, recall is the call it always was.
+        options = request if request.search_overrides() else None
         target = (
             _recall_target(app)
-            if request.user_id == DEFAULT_USER_ID
-            else _sdk_recall_target(app, request.user_id)
+            if request.user_id == DEFAULT_USER_ID and options is None
+            else _sdk_recall_target(app, request.user_id, options)
         )
+        raw_options = {"filters": options} if options is not None else {}
         access = external_access(http_request.headers)
         receipt = await recall_with_fallback(
             request,
@@ -3642,7 +3996,12 @@ def create_app(
             has_memories=lambda: _library_has_memories(app, request.user_id),
             raw_sources=lambda: _recall_raw_sources(app, request, access, started),
             search_raw=lambda query, limit, sources: _search_sdk_raw(
-                app, query, limit=limit, sources=sources, user_id=request.user_id
+                app,
+                query,
+                limit=limit,
+                sources=sources,
+                user_id=request.user_id,
+                **raw_options,
             ),
         )
         event_store = getattr(app.state, "call_event_store", None)
@@ -3932,6 +4291,11 @@ async def _require_external_recall_scope(
     access.require(tool, frozenset({scope}))
 
 
+def _ask_filters(request: AskMemoryRequest) -> dict[str, SdkSearchFilters]:
+    """The answerer's `filters` argument, only when the caller set any."""
+    return {"filters": request} if request.search_overrides() else {}
+
+
 def _sdk_request_answerer(app: FastAPI) -> SdkMemoryAnswerer:
     return SdkMemoryAnswerer(
         client_handle=_sdk_client_handle(app),
@@ -4108,6 +4472,25 @@ def _active_adapters(
     return adapters
 
 
+def _registration_at_grant(
+    grant_store: SourceGrantStore,
+    registration: SourceRegistration,
+    user_id: str,
+) -> SourceRegistration:
+    """The registration with its candidate at `user_id`'s granted root, if any."""
+    for receipt, root_path in grant_store.grants():
+        if receipt.user_id == user_id and receipt.source_id == registration.descriptor.source_id:
+            return replace(
+                registration,
+                candidate=replace(
+                    registration.candidate,
+                    path=Path(root_path),
+                    kind=RootCandidateKind.USER_SELECTED,
+                ),
+            )
+    return registration
+
+
 def _source_response(
     registration: SourceRegistration,
     receipt: SourceGrantReceipt | None,
@@ -4192,12 +4575,21 @@ def _require_registration(app: FastAPI, source_id: str) -> SourceRegistration:
     return registration
 
 
+def _require_multi_user_source(source_id: str, user_id: str) -> None:
+    """Refuse another user's lane of a source that holds `local`'s roots only."""
+    if user_id != DEFAULT_USER_ID and source_id not in MULTI_USER_SOURCES:
+        raise HTTPException(status_code=422, detail="user_id_requires_multi_user_source")
+
+
 def _diagnostic_request_event(method: str, request_path: str) -> str | None:
     if method == "GET" or request_path in {"/api/v1/health", "/api/v1/runtime/identity"}:
         return None
     families = (
         ("/api/v1/import", "import.request"),
         ("/api/v1/sources", "source.request"),
+        ("/api/v2/import", "import.request"),
+        ("/api/v2/sources", "source.request"),
+        ("/api/v2/evolve", "memory.request"),
         ("/api/v1/model", "model.request"),
         ("/api/v1/memor", "memory.request"),
         ("/api/v2/context", "recall.request"),
@@ -4777,23 +5169,33 @@ async def _recall_model_ready(app: FastAPI) -> bool:
     return profile is not None and bool(profile.capabilities.model_available)
 
 
-def _sdk_recall_target(app: FastAPI, user_id: str) -> SdkRecallTarget:
-    """Recall over one user's SDK memories; `get` results are kept only if theirs."""
+def _sdk_recall_target(
+    app: FastAPI,
+    user_id: str,
+    options: SdkSearchFilters | None = None,
+) -> SdkRecallTarget:
+    """Recall over one user's SDK memories; `get` results are kept only if theirs.
+
+    With a caller's pass-through `options`, the search carries them and a
+    working/coding hit is read back from its own namespace.
+    """
     handle = _sdk_client_handle(app)
+    namespaces: dict[str, dict[str, str]] = {}
 
     async def owned(memory_id: str) -> HySdkMemoryRecord | None:
-        memory = await _get_sdk_memory(handle, memory_id)
+        memory = await _get_sdk_memory(handle, memory_id, **namespaces.get(memory_id, {}))
         return memory if memory is not None and owns(memory.user_id, user_id) else None
 
-    return SdkRecallTarget(
-        semantic_search=lambda query: _search_sdk_memories(
-            handle,
-            query,
-            user_id=user_id,
-            agent_id="*",
-        ),
-        get_memory=owned,
-    )
+    async def search(query: str) -> tuple[object, ...]:
+        hits = await _search_sdk_memories(
+            handle, query, user_id=user_id, agent_id="*", options=options
+        )
+        for hit in hits:
+            if isinstance(hit, SemanticMemoryHit) and hit.variant is not None:
+                namespaces[hit.memory_id] = {"kind": hit.kind, "variant": hit.variant}
+        return hits
+
+    return SdkRecallTarget(semantic_search=search, get_memory=owned)
 
 
 async def _library_has_memories(app: FastAPI, user_id: str = DEFAULT_USER_ID) -> bool:
@@ -4861,25 +5263,47 @@ async def _search_sdk_raw(
     limit: int,
     sources: frozenset[str] | None,
     user_id: str = DEFAULT_USER_ID,
+    filters: SdkSearchFilters | None = None,
 ) -> tuple[HySdkRawHit, ...]:
-    """The imported conversations nearest the query: the SDK raw layer."""
+    """The imported conversations nearest the query: the SDK raw layer.
+
+    `filters` are a caller's pass-through options: its floor and row filters
+    apply, and its `include_sources` only narrow `sources`, never widen them.
+    """
+    from one_memory.context_routes import raw_lane_overrides
+
+    include = sorted(sources) if sources else None
+    if filters is not None and filters.include_sources is not None:
+        include = [
+            source
+            for source in dict.fromkeys(filters.include_sources)
+            if sources is None or source in sources
+        ]
+        if not include:
+            return ()
     client = await _sdk_client_handle(app).client()
     raw = await asyncio.to_thread(
         client.search,
         query,
-        user_ids=[user_id],
-        agent_ids=[],
-        include_sources=sorted(sources) if sources else None,
-        limit=limit,
-        min_score=0.0,
-        schema_min_score=0.0,
-        schema_limit=0,
-        intention_limit=0,
-        scene="chat",
-        reader=HY_MEMORY_READER,
-        layers=["l1_raw"],
+        **{
+            "user_ids": [user_id],
+            "agent_ids": [],
+            "include_sources": include,
+            "limit": limit,
+            "min_score": 0.0,
+            "schema_min_score": 0.0,
+            "schema_limit": 0,
+            "intention_limit": 0,
+            "scene": "chat",
+            "reader": HY_MEMORY_READER,
+            "layers": ["l1_raw"],
+            **(raw_lane_overrides(filters) if filters is not None else {}),
+        },
     )
-    return parse_sdk_raw_search(raw)
+    hits = parse_sdk_raw_search(raw)
+    if filters is None:
+        return hits
+    return tuple(hit for hit in hits if filters.passes_floor("raw", hit.score))
 
 
 def _sdk_client_handle(app: FastAPI) -> SdkClientHandle:
@@ -4961,6 +5385,30 @@ def _library_search_windows(app: FastAPI) -> LibrarySearchWindows:
     return cast(LibrarySearchWindows, windows)
 
 
+def _library_values(values: list[str], allowed: tuple[str, ...], code: str) -> list[str]:
+    """Repeated or comma-separated query values, each one the SDK knows."""
+    chosen = split_csv(values)
+    if any(value not in allowed for value in chosen):
+        raise HTTPException(status_code=422, detail=code)
+    return chosen
+
+
+def _list_total(raw: object) -> int:
+    """A chat-store `list_memories` reply's total: its vector and graph buckets."""
+    if not isinstance(raw, dict):
+        raise HySdkReadError("hy_memory_list_shape_unknown")
+    total = 0
+    for name in ("vdb", "graph"):
+        bucket = raw.get(name)
+        if bucket is None:
+            continue
+        value = bucket.get("total") if isinstance(bucket, dict) else None
+        if not isinstance(value, int) or isinstance(value, bool) or value < 0:
+            raise HySdkReadError("hy_memory_list_shape_unknown")
+        total += value
+    return total
+
+
 async def _library_search_page(
     app: FastAPI,
     client: Any,
@@ -4973,6 +5421,7 @@ async def _library_search_page(
     window_id: str | None,
     scene: str = "all",
     user_id: str = DEFAULT_USER_ID,
+    filters: dict[str, list[str]] | None = None,
 ) -> HySdkMemoryPage:
     """One page of a keyword search, cut from a cached result window.
 
@@ -4982,11 +5431,16 @@ async def _library_search_page(
     contain every word, and caches those matches under a `window_id`. Every
     page of that search is a slice of the same matches, read fresh from the
     SDK so edits and deletes show. The whole library is never listed in Core.
+
+    `filters` (layers, exclude_sources, session_ids, agent_ids) reach the SDK
+    search and are part of the window's identity. A layer filter keeps chat
+    matches only: the SDK applies layers to the chat lane alone.
     """
     windows = _library_search_windows(app)
+    filters = filters or {}
     # The user is part of the window's identity: one user's `window_id` must
     # never cut a page from another user's matches.
-    key = window_key(query, source, statuses, scene, user_id)
+    key = window_key(query, source, statuses, scene, user_id, filters)
     window = windows.get(window_id, key) if window_id else None
     window_reset = window_id is not None and window is None
     if window is None:
@@ -4997,7 +5451,7 @@ async def _library_search_page(
             scene="all",
             rerank=False,
             user_ids=[user_id],
-            agent_ids=[],
+            agent_ids=filters.get("agent_ids", []),
             include_sources=[source] if source else None,
             limit=fetch,
             min_score=0.0,
@@ -5009,8 +5463,11 @@ async def _library_search_page(
             # recall-time lane the list never shows.
             intention_limit=0,
             reader=HY_MEMORY_READER,
+            **{name: values for name, values in filters.items() if name != "agent_ids"},
         )
         hits, held = library_keyword_hits(search_raw, query)
+        if "layers" in filters:
+            hits = tuple(hit for hit in hits if hit.kind == "chat")
         if scene != "all":
             # One scene: keep that scene's matches from the same fused window.
             hits = tuple(
@@ -5053,22 +5510,33 @@ async def _search_sdk_memories(
     user_id: str,
     agent_id: str,
     limit: int = 12,
+    options: SdkSearchFilters | None = None,
 ) -> tuple[object, ...]:
     client = await handle.client()
+    overrides = options.search_overrides() if options is not None else {}
     raw = await asyncio.to_thread(
         client.search,
         query,
-        user_ids=[user_id],
-        agent_ids=[] if agent_id == "*" else [agent_id],
-        limit=limit,
-        min_score=sdk_relevance_floor(),
-        schema_min_score=sdk_relevance_floor(),
-        schema_limit=limit,
-        intention_limit=limit,
-        scene="normal",
-        reader=HY_MEMORY_READER,
+        **{
+            "user_ids": [user_id],
+            "agent_ids": [] if agent_id == "*" else [agent_id],
+            "limit": limit,
+            "min_score": sdk_relevance_floor(),
+            "schema_min_score": sdk_relevance_floor(),
+            "schema_limit": limit,
+            "intention_limit": limit,
+            "scene": "normal",
+            "reader": HY_MEMORY_READER,
+            **overrides,
+        },
+    )
+    if options is None or not overrides:
+        return parse_sdk_search(raw, error_code="hy_memory_search_shape_unknown")
+    return tuple(
+        hit
+        for hit in parse_sdk_lane_search(raw, error_code="hy_memory_search_shape_unknown")
+        if options.passes_floor(cast(SearchLane, hit.lane), hit.score)
     )
-    return parse_sdk_search(raw, error_code="hy_memory_search_shape_unknown")
 
 
 def _sdk_http_error(error: Exception, fallback: str) -> HTTPException:
diff --git a/memhub/apps/core/src/one_memory/context_models.py b/memhub/apps/core/src/one_memory/context_models.py
index 25fce74..281750d 100644
--- a/memhub/apps/core/src/one_memory/context_models.py
+++ b/memhub/apps/core/src/one_memory/context_models.py
@@ -5,6 +5,7 @@ from typing import Annotated, Literal
 
 from pydantic import BaseModel, ConfigDict, Field, model_validator
 
+from one_memory.sdk_search_options import SdkSearchOptions
 from one_memory.user_scope import DEFAULT_USER_ID, UserId
 
 ContextKind = Literal["raw", "memory"]
@@ -49,12 +50,17 @@ class ContextSearchRequest(BaseModel):
         return self
 
 
-class SdkContextSearchRequest(ContextSearchRequest):
+class SdkContextSearchRequest(ContextSearchRequest, SdkSearchOptions):
     """`POST /api/v2/context/search`: the three SDK recall lanes are set apart.
 
     `limit` is the normal lane's top-k and the cap on returned items;
     `schema_limit` and `intention_limit` are the SDK's schema (L6) and
     proactive intention (L7) lanes. A caller's values are passed through.
+
+    The `SdkSearchOptions` fields reach the memory lane's `client.search`;
+    the raw lane takes the floor and the source, session, agent and time
+    filters (never wider than the caller's raw authority). Absent, both
+    lanes make the call they always made.
     """
 
     limit: int = Field(default=10, ge=1, le=20, strict=True)
diff --git a/memhub/apps/core/src/one_memory/context_routes.py b/memhub/apps/core/src/one_memory/context_routes.py
index 500ad4d..3084d7a 100644
--- a/memhub/apps/core/src/one_memory/context_routes.py
+++ b/memhub/apps/core/src/one_memory/context_routes.py
@@ -24,14 +24,57 @@ from one_memory.hy_runtime_config import HY_MEMORY_READER
 from one_memory.hy_sdk_runtime import sdk_relevance_floor
 from one_memory.hy_sdk_types import (
     HySdkMemoryRecord,
+    parse_sdk_lane_search,
     parse_sdk_raw_search,
     parse_sdk_search,
 )
 from one_memory.imports.storage import EvidenceStore
+from one_memory.sdk_search_options import SdkSearchFilters, SearchLane
+from one_memory.semantic_deadline import SemanticMemoryHit
 from one_memory.user_scope import owns
 
 CALL_EVENT_RESPONSE_BUDGET_MS = 250
 
+#: Pass-through filters the raw lane honours. Scene, layers, reader and the
+#: schema/working floors describe memory lanes; the raw lane is always the
+#: chat store's L1 raw layer.
+_RAW_LANE_FILTERS = ("created_after", "session_ids", "agent_ids", "exclude_sources", "rerank")
+
+
+def raw_lane_sources(
+    allowed: Sequence[str] | frozenset[str] | None,
+    requested: Sequence[str] | None,
+) -> list[str] | None:
+    """The raw lane's source filter: the caller's, never wider than its authority.
+
+    `allowed` empty or None means every source (the call Core always made).
+    None back means nothing is left to search.
+    """
+    allowed_list = list(allowed or ())
+    if requested is None:
+        return allowed_list
+    chosen = [
+        source for source in dict.fromkeys(requested) if not allowed_list or source in allowed_list
+    ]
+    return chosen or None
+
+
+def raw_lane_overrides(value: SdkSearchFilters) -> dict[str, object]:
+    """The caller's raw-lane overrides: its floor and its row filters."""
+    overrides = value.filter_kwargs()
+    found = {name: overrides[name] for name in _RAW_LANE_FILTERS if name in overrides}
+    floor = value.lane_floor("raw")
+    if floor is not None:
+        found["min_score"] = floor
+    return found
+
+
+def hit_namespace(hit: SemanticMemoryHit) -> dict[str, str]:
+    """The `get` namespace of a hit: nothing for chat, kind and variant otherwise."""
+    if hit.kind in {"experience", "fact"} and hit.variant is not None:
+        return {"kind": hit.kind, "variant": hit.variant}
+    return {}
+
 
 def sdk_context_router(dependencies: Sequence[Depends]) -> APIRouter:
     """SDK-native context: no Evidence/Governance ids or fabricated revisions."""
@@ -71,22 +114,30 @@ def sdk_context_router(dependencies: Sequence[Depends]) -> APIRouter:
         async def raw_lane() -> tuple[SdkRawContextItem, ...]:
             if "raw" not in value.kinds or not authority.raw_allowed:
                 return ()
+            sources = raw_lane_sources(authority.raw_sources, value.include_sources)
+            if sources is None:
+                return ()
             raw = await asyncio.to_thread(
                 client.search,
                 value.query,
-                user_ids=[value.user_id],
-                agent_ids=[],
-                include_sources=list(authority.raw_sources or ()),
-                limit=value.limit,
-                min_score=0.0,
-                schema_min_score=0.0,
-                schema_limit=0,
-                intention_limit=0,
-                scene="chat",
-                reader=HY_MEMORY_READER,
-                layers=["l1_raw"],
+                **{
+                    "user_ids": [value.user_id],
+                    "agent_ids": [],
+                    "include_sources": sources,
+                    "limit": value.limit,
+                    "min_score": 0.0,
+                    "schema_min_score": 0.0,
+                    "schema_limit": 0,
+                    "intention_limit": 0,
+                    "scene": "chat",
+                    "reader": HY_MEMORY_READER,
+                    "layers": ["l1_raw"],
+                    **raw_lane_overrides(value),
+                },
+            )
+            hits = tuple(
+                hit for hit in parse_sdk_raw_search(raw) if value.passes_floor("raw", hit.score)
             )
-            hits = parse_sdk_raw_search(raw)
             return tuple(
                 SdkRawContextItem(
                     raw_id=hit.raw_id,
@@ -106,23 +157,37 @@ def sdk_context_router(dependencies: Sequence[Depends]) -> APIRouter:
         async def memory_lane() -> tuple[SdkMemoryContextItem, ...]:
             if "memory" not in value.kinds or not authority.memory_allowed:
                 return ()
+            overrides = value.search_overrides()
             raw = await asyncio.to_thread(
                 client.search,
                 value.query,
-                user_ids=[value.user_id],
-                agent_ids=[],
-                limit=value.limit,
-                min_score=sdk_relevance_floor(),
-                schema_min_score=sdk_relevance_floor(),
-                schema_limit=value.schema_limit,
-                intention_limit=value.intention_limit,
-                scene="normal",
-                reader=HY_MEMORY_READER,
+                **{
+                    "user_ids": [value.user_id],
+                    "agent_ids": [],
+                    "limit": value.limit,
+                    "min_score": sdk_relevance_floor(),
+                    "schema_min_score": sdk_relevance_floor(),
+                    "schema_limit": value.schema_limit,
+                    "intention_limit": value.intention_limit,
+                    "scene": "normal",
+                    "reader": HY_MEMORY_READER,
+                    **overrides,
+                },
+            )
+            hits = (
+                tuple(
+                    hit
+                    for hit in parse_sdk_lane_search(
+                        raw, error_code="hy_memory_search_shape_unknown"
+                    )
+                    if value.passes_floor(cast(SearchLane, hit.lane), hit.score)
+                )
+                if overrides
+                else parse_sdk_search(raw, error_code="hy_memory_search_shape_unknown")
             )
-            hits = parse_sdk_search(raw, error_code="hy_memory_search_shape_unknown")
             items: list[SdkMemoryContextItem] = []
             for hit in hits:
-                record = await asyncio.to_thread(client.get, hit.memory_id)
+                record = await asyncio.to_thread(client.get, hit.memory_id, **hit_namespace(hit))
                 memory = None if record is None else HySdkMemoryRecord.from_sdk(record)
                 # `get` takes no user: a hit is kept only if it is the caller's.
                 if (
diff --git a/memhub/apps/core/src/one_memory/hy_sdk_types.py b/memhub/apps/core/src/one_memory/hy_sdk_types.py
index d510a79..a700cec 100644
--- a/memhub/apps/core/src/one_memory/hy_sdk_types.py
+++ b/memhub/apps/core/src/one_memory/hy_sdk_types.py
@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import re
 from collections.abc import Mapping
 from datetime import UTC, datetime
 from typing import Literal, NamedTuple, cast
@@ -391,6 +392,8 @@ class HySdkRawRecord(BaseModel):
     memory_at: int | None = None
     gmt_created: int | None = None
     custom: dict[str, object] = Field(default_factory=dict)
+    #: active, or shadow once pro extracted it; None when the SDK gave none.
+    status: str | None = None
 
     @classmethod
     def from_sdk(cls, raw: object) -> HySdkRawRecord:
@@ -417,11 +420,34 @@ class HySdkRawRecord(BaseModel):
                     raw.get("gmt_created") if isinstance(raw.get("gmt_created"), int) else None
                 ),
                 custom=dict(custom),
+                status=str(raw["status"]) if isinstance(raw.get("status"), str) else None,
             )
         except (KeyError, TypeError, ValueError) as error:
             raise HySdkReadError("hy_memory_raw_shape_unknown") from error
 
 
+_RAW_TURN_LINE = re.compile(r"^\[(user|assistant|tool|system)\]:\s?(.*)$")
+
+
+def raw_turn_messages(content: str) -> tuple[tuple[str, str], ...]:
+    """The `(role, text)` messages of one SDK raw turn.
+
+    The SDK stores a turn as `[user]: …\\n[assistant]: …`; a line without a
+    role prefix continues the message above it. Content that names no role
+    at all is one message of unknown role (`""`).
+    """
+    messages: list[list[str]] = []
+    for line in content.splitlines():
+        match = _RAW_TURN_LINE.match(line)
+        if match is not None:
+            messages.append([match.group(1), match.group(2)])
+        elif messages:
+            messages[-1][1] += "\n" + line
+        else:
+            messages.append(["", line])
+    return tuple((role, text) for role, text in messages)
+
+
 class HySdkRawHit(HySdkRawRecord):
     score: float = Field(ge=0, le=1)
 
@@ -516,6 +542,96 @@ class HySdkUserProfile(BaseModel):
         )
 
 
+class HySdkProfileVersion(BaseModel):
+    """One version on an L0 basic-info chain."""
+
+    model_config = ConfigDict(frozen=True, extra="forbid")
+
+    memory_id: str
+    content: str
+    #: Conversation time as the SDK renders it on a chain (epoch or text).
+    memory_at: int | str | None = None
+    gmt_created: int | None = None
+    #: The chain head: the version the profile shows now.
+    current: bool = False
+
+
+class HySdkProfileChain(BaseModel):
+    """One L0 basic-info head and its versions, latest first."""
+
+    model_config = ConfigDict(frozen=True, extra="forbid")
+
+    memory_id: str
+    content: str
+    status: str
+    memory_at: int | None = None
+    gmt_created: int | None = None
+    #: The structured fields this head holds (`basic_info_kv`).
+    basic_info: dict[str, object] = Field(default_factory=dict)
+    versions: tuple[HySdkProfileVersion, ...]
+
+
+class HySdkProfileVersions(BaseModel):
+    """`get_user_basic_info`: the long-term profile's L0 version chains."""
+
+    model_config = ConfigDict(frozen=True, extra="forbid")
+
+    request_id: str
+    chains: tuple[HySdkProfileChain, ...]
+    elapsed_ms: float = Field(ge=0)
+
+    @classmethod
+    def from_sdk(cls, raw: object) -> HySdkProfileVersions:
+        if not isinstance(raw, Mapping):
+            raise HySdkReadError("hy_memory_profile_versions_shape_unknown")
+        request_id = raw.get("request_id")
+        rows = raw.get("memories")
+        elapsed_ms = raw.get("elapsed_ms")
+        if (
+            not isinstance(request_id, str)
+            or not isinstance(rows, list)
+            or not isinstance(elapsed_ms, int | float)
+            or isinstance(elapsed_ms, bool)
+        ):
+            raise HySdkReadError("hy_memory_profile_versions_shape_unknown")
+        chains: list[HySdkProfileChain] = []
+        for row in rows:
+            if not isinstance(row, Mapping) or not isinstance(row.get("memory_id"), str):
+                raise HySdkReadError("hy_memory_profile_versions_shape_unknown")
+            head_id = str(row["memory_id"])
+            chain = row.get("evolution_chain")
+            entries = chain if isinstance(chain, list) and chain else [{**row, "node_id": head_id}]
+            versions = tuple(
+                HySdkProfileVersion(
+                    memory_id=str(entry.get("node_id") or entry.get("memory_id")),
+                    content=str(entry.get("content") or ""),
+                    memory_at=(
+                        entry.get("memory_at")
+                        if isinstance(entry.get("memory_at"), int | str)
+                        and not isinstance(entry.get("memory_at"), bool)
+                        else None
+                    ),
+                    gmt_created=_epoch(entry.get("gmt_created")),
+                    current=str(entry.get("node_id") or entry.get("memory_id")) == head_id,
+                )
+                for entry in entries
+                if isinstance(entry, Mapping) and (entry.get("node_id") or entry.get("memory_id"))
+            )
+            basic_info = row.get("basic_info_kv")
+            chains.append(
+                HySdkProfileChain(
+                    memory_id=head_id,
+                    content=str(row.get("content") or ""),
+                    status=str(row.get("status") or "active"),
+                    memory_at=_epoch(row.get("memory_at")),
+                    gmt_created=_epoch(row.get("gmt_created")),
+                    basic_info=dict(basic_info) if isinstance(basic_info, Mapping) else {},
+                    versions=versions,
+                )
+            )
+        return cls(request_id=request_id, chains=tuple(chains), elapsed_ms=float(elapsed_ms))
+
+
 def parse_sdk_search(raw: object, *, error_code: str) -> tuple[SemanticMemoryHit, ...]:
     rows = _reply_rows(raw, error_code)
     found: list[SemanticMemoryHit] = []
@@ -542,6 +658,120 @@ def parse_sdk_search(raw: object, *, error_code: str) -> tuple[SemanticMemoryHit
     return tuple(found)
 
 
+def parse_sdk_lane_search(raw: object, *, error_code: str) -> tuple[SemanticMemoryHit, ...]:
+    """Every scene's search reply as hits that name their lane and namespace.
+
+    `parse_sdk_search` reads the chat reply only and forgets which lane a hit
+    came from. A caller may now pick the scene and a floor per lane, so this
+    reads all three reply shapes:
+
+    - chat: `memories` as `{schema, proactive, normal}` (or one list, normal);
+    - working/coding: `facts` and `experiences` of that variant;
+    - all: one fused `memories` list whose rows carry `scene`, `kind` and
+      their own lane's score (`lane_score`). The fused `score` is a rank
+      fusion (1/(60+rank)), not a relevance, so the lane score is reported.
+
+    Highest score first, first occurrence of an id kept.
+    """
+    if not isinstance(raw, Mapping):
+        raise HySdkReadError(error_code)
+    scene = raw.get("scene")
+    found: list[SemanticMemoryHit] = []
+    if scene == "all":
+        rows = raw.get("memories")
+        if not isinstance(rows, list) or any(not isinstance(row, Mapping) for row in rows):
+            raise HySdkReadError(error_code)
+        for row in rows:
+            hit = _lane_hit(row, scene=str(row.get("scene") or "chat"), score_key="lane_score")
+            if hit is not None:
+                found.append(hit)
+    elif scene in ("productivity", "working", "coding"):
+        variant = raw.get("variant") if raw.get("variant") in {"working", "coding"} else None
+        lane = variant or (scene if scene in {"working", "coding"} else "working")
+        for key, kind in (("facts", "fact"), ("experiences", "experience")):
+            rows = raw.get(key) or []
+            if not isinstance(rows, list) or any(not isinstance(row, Mapping) for row in rows):
+                raise HySdkReadError(error_code)
+            for row in rows:
+                hit = _lane_hit({**row, "kind": kind}, scene=lane, score_key="score")
+                if hit is not None:
+                    found.append(hit)
+    else:
+        memories = raw.get("memories")
+        if isinstance(memories, Mapping):
+            if set(memories) != {"schema", "proactive", "normal"}:
+                raise HySdkReadError(error_code)
+            channels = tuple(memories.items())
+        elif isinstance(memories, list):
+            channels = (("normal", memories),)
+        else:
+            raise HySdkReadError(error_code)
+        for lane, rows in channels:
+            if not isinstance(rows, list) or any(not isinstance(row, Mapping) for row in rows):
+                raise HySdkReadError(error_code)
+            for row in rows:
+                hit = _lane_hit(row, scene="chat", score_key="score", lane=str(lane))
+                if hit is not None:
+                    found.append(hit)
+    ordered: list[SemanticMemoryHit] = []
+    seen: set[tuple[str, str, str | None]] = set()
+    for hit in sorted(found, key=lambda value: value.score, reverse=True):
+        identity = (hit.memory_id, hit.kind, hit.variant)
+        if identity in seen:
+            continue
+        seen.add(identity)
+        ordered.append(hit)
+    return tuple(ordered)
+
+
+def _lane_hit(
+    row: Mapping[str, object],
+    *,
+    scene: str,
+    score_key: str,
+    lane: str | None = None,
+) -> SemanticMemoryHit | None:
+    kind = str(row.get("kind")) if row.get("kind") in {"experience", "fact"} else "chat"
+    if kind == "chat":
+        memory_id = row.get("memory_id") or row.get("id")
+        variant = None
+        hit_lane = lane or "normal"
+    else:
+        id_key = "experience_id" if kind == "experience" else "fact_id"
+        memory_id = row.get("memory_id") or row.get(id_key)
+        variant = scene if scene in {"working", "coding"} else None
+        if variant is None:
+            return None
+        hit_lane = variant
+    if not isinstance(memory_id, str) or not memory_id:
+        return None
+    value = row.get(score_key)
+    if not isinstance(value, int | float) or isinstance(value, bool):
+        value = row.get("score")
+    score = (
+        max(0.0, min(1.0, float(value)))
+        if isinstance(value, int | float) and not isinstance(value, bool)
+        else 0.0
+    )
+    if kind != "chat":
+        return SemanticMemoryHit(
+            memory_id=memory_id, score=score, lane=hit_lane, kind=kind, variant=variant
+        )
+    content = row.get("content")
+    member_ids, formatting_complete = _formatted_member_ids(row)
+    return SemanticMemoryHit(
+        memory_id=memory_id,
+        score=score,
+        formatted_content=(
+            content.strip() if isinstance(content, str) and content.strip() else None
+        ),
+        member_ids=member_ids,
+        sdk_formatted=True,
+        formatting_complete=formatting_complete,
+        lane=hit_lane,
+    )
+
+
 class LibraryHit(NamedTuple):
     """One keyword match in a library search window, with its namespace."""
 
diff --git a/memhub/apps/core/src/one_memory/library_search_window.py b/memhub/apps/core/src/one_memory/library_search_window.py
index 8c17477..b2dd968 100644
--- a/memhub/apps/core/src/one_memory/library_search_window.py
+++ b/memhub/apps/core/src/one_memory/library_search_window.py
@@ -28,7 +28,10 @@ from one_memory.hy_sdk_types import LibraryHit
 DEFAULT_WINDOW_TTL_SECONDS = 300.0
 DEFAULT_MAX_WINDOWS = 32
 
-WindowKey = tuple[str, str | None, tuple[str, ...], str, str]
+#: (query, source, statuses, scene, user, other filters as sorted name/values pairs)
+WindowKey = tuple[
+    str, str | None, tuple[str, ...], str, str, tuple[tuple[str, tuple[str, ...]], ...]
+]
 
 
 def window_key(
@@ -37,8 +40,12 @@ def window_key(
     statuses: list[str],
     scene: str = "all",
     user_id: str = "local",
+    filters: dict[str, list[str]] | None = None,
 ) -> WindowKey:
-    return (query, source, tuple(sorted(set(statuses))), scene, user_id)
+    extra = tuple(
+        sorted((name, tuple(sorted(set(values)))) for name, values in (filters or {}).items())
+    )
+    return (query, source, tuple(sorted(set(statuses))), scene, user_id, extra)
 
 
 @dataclass(frozen=True)
diff --git a/memhub/apps/core/src/one_memory/recall.py b/memhub/apps/core/src/one_memory/recall.py
index fa275a4..2f85685 100644
--- a/memhub/apps/core/src/one_memory/recall.py
+++ b/memhub/apps/core/src/one_memory/recall.py
@@ -14,6 +14,7 @@ from pydantic import BaseModel, ConfigDict, Field
 
 from one_memory.hy_sdk_types import HySdkMemoryRecord
 from one_memory.memory_governance import GovernedMemory, MemoryStatus
+from one_memory.sdk_search_options import SdkSearchOptions
 from one_memory.semantic_deadline import (
     SemanticMemoryHit,
     SemanticSearch,
@@ -50,7 +51,15 @@ class TruncationBudget(StrEnum):
     TIMEOUT = "timeout_budget"
 
 
-class RecallRequest(BaseModel):
+class RecallRequest(SdkSearchOptions):
+    """`POST /api/v1/recall`.
+
+    The `SdkSearchOptions` fields, `schema_limit` and `intention_limit` pass
+    through to the SDK memory search (and the floor and row filters to the
+    raw fallback). Absent, recall makes the search it always made: the
+    relevance floor, schema and intention lanes sized to `limit`.
+    """
+
     model_config = ConfigDict(frozen=True, extra="forbid")
 
     query: str = Field(min_length=1, max_length=2_000)
@@ -70,6 +79,17 @@ class RecallRequest(BaseModel):
     timeout_ms: int = Field(default=2_000, ge=50, le=30_000)
     #: Whose memories to recall. Omitted, it is `local`, the App's library.
     user_id: UserId = DEFAULT_USER_ID
+    #: The SDK's schema (L6) and proactive intention (L7) lanes.
+    schema_limit: int | None = Field(default=None, ge=0, le=20)
+    intention_limit: int | None = Field(default=None, ge=0, le=20)
+
+    def search_overrides(self) -> Mapping[str, object]:
+        values = dict(super().search_overrides())
+        if self.schema_limit is not None:
+            values["schema_limit"] = self.schema_limit
+        if self.intention_limit is not None:
+            values["intention_limit"] = self.intention_limit
+        return values
 
 
 class RecallHit(BaseModel):
diff --git a/memhub/apps/core/src/one_memory/sdk_memory_qa.py b/memhub/apps/core/src/one_memory/sdk_memory_qa.py
index 2f39645..b1ff68d 100644
--- a/memhub/apps/core/src/one_memory/sdk_memory_qa.py
+++ b/memhub/apps/core/src/one_memory/sdk_memory_qa.py
@@ -6,7 +6,7 @@ import asyncio
 import json
 from collections.abc import AsyncIterator, Awaitable, Callable
 from contextlib import aclosing
-from typing import Any, Literal, Protocol
+from typing import Any, Literal, Protocol, cast
 
 import httpx
 from pydantic import BaseModel, ConfigDict
@@ -14,7 +14,7 @@ from pydantic import BaseModel, ConfigDict
 from one_memory.http_client import create_async_client
 from one_memory.hy_runtime_config import HY_MEMORY_READER
 from one_memory.hy_sdk_runtime import sdk_relevance_floor
-from one_memory.hy_sdk_types import HySdkMemoryRecord, parse_sdk_search
+from one_memory.hy_sdk_types import HySdkMemoryRecord, parse_sdk_lane_search, parse_sdk_search
 from one_memory.memory_qa import (
     MemoryAnswerError,
     _DeferredSecretStore,
@@ -31,6 +31,7 @@ from one_memory.model_profiles import (
     ProviderKind,
     attach_disable_thinking,
 )
+from one_memory.sdk_search_options import SdkSearchFilters, SearchLane
 from one_memory.secrets import SecretStore, SecretStoreUnavailableError
 from one_memory.user_scope import owns
 
@@ -96,22 +97,39 @@ class SdkMemoryAnswerer:
         question: str,
         *,
         user_id: str = "local",
+        filters: SdkSearchFilters | None = None,
     ) -> tuple[SdkAskMemory, ...]:
+        """The user's active memories nearest the question.
+
+        `filters` are a caller's pass-through search options; absent, the
+        search is the one ask always made.
+        """
         client = await self.client_handle.client()
+        overrides = filters.search_overrides() if filters is not None else {}
         raw = await asyncio.to_thread(
             client.search,
             question,
-            user_ids=[user_id],
-            agent_ids=[],
-            limit=12,
-            min_score=sdk_relevance_floor(),
-            schema_min_score=sdk_relevance_floor(),
-            schema_limit=12,
-            intention_limit=12,
-            scene="normal",
-            reader=HY_MEMORY_READER,
+            **{
+                "user_ids": [user_id],
+                "agent_ids": [],
+                "limit": 12,
+                "min_score": sdk_relevance_floor(),
+                "schema_min_score": sdk_relevance_floor(),
+                "schema_limit": 12,
+                "intention_limit": 12,
+                "scene": "normal",
+                "reader": HY_MEMORY_READER,
+                **overrides,
+            },
         )
-        hits = parse_sdk_search(raw, error_code="hy_memory_search_shape_unknown")
+        if filters is not None and overrides:
+            hits = tuple(
+                hit
+                for hit in parse_sdk_lane_search(raw, error_code="hy_memory_search_shape_unknown")
+                if filters.passes_floor(cast(SearchLane, hit.lane), hit.score)
+            )
+        else:
+            hits = parse_sdk_search(raw, error_code="hy_memory_search_shape_unknown")
         found: list[SdkAskMemory] = []
         seen: set[str] = set()
         for hit in hits:
@@ -134,8 +152,9 @@ class SdkMemoryAnswerer:
         question: str,
         *,
         user_id: str = "local",
+        filters: SdkSearchFilters | None = None,
     ) -> SdkMemoryAnswer:
-        candidates = await self.retrieve(question, user_id=user_id)
+        candidates = await self.retrieve(question, user_id=user_id, filters=filters)
         if not candidates:
             return SdkMemoryAnswer(answer=_NO_GROUNDING, memories=(), mode="empty")
         profile = await self._active_profile()
@@ -166,8 +185,9 @@ class SdkMemoryAnswerer:
         question: str,
         *,
         user_id: str = "local",
+        filters: SdkSearchFilters | None = None,
     ) -> AsyncIterator[dict[str, object]]:
-        candidates = await self.retrieve(question, user_id=user_id)
+        candidates = await self.retrieve(question, user_id=user_id, filters=filters)
         await self._require_current(candidates)
         yield {"type": "recall", "memories": candidates}
         if not candidates:
diff --git a/memhub/apps/core/src/one_memory/sdk_search_options.py b/memhub/apps/core/src/one_memory/sdk_search_options.py
new file mode 100644
index 0000000..2bc2a54
--- /dev/null
+++ b/memhub/apps/core/src/one_memory/sdk_search_options.py
@@ -0,0 +1,179 @@
+"""SDK search parameters a host may pass through to `client.search`.
+
+`POST /api/v2/context/search`, `POST /api/v1/recall` and the v2 ask routes
+used to fix every SDK search knob, so a host that wanted a stricter relevance
+floor filtered the answer itself. These fields are the public `search`
+parameters of hy-memory 2.0.9 that are safe to hand a caller. Every field is
+optional: absent, the route keeps exactly the call it made before.
+
+Never exposed: `user_ids` (a route searches its one scoped `user_id`),
+`embed_override` and `query_embedding` (they bypass the configured embedder),
+and `request_id` (Core's own correlation id).
+
+A caller's floor is also applied to what Core returns, not only handed to the
+SDK: a hit below the floor that names its lane is dropped (`passes_floor`).
+With `min_score` alone that floor covers every lane, so `min_score=0.9`
+answers only results scoring at least 0.9.
+"""
+
+from __future__ import annotations
+
+from collections.abc import Mapping
+from typing import Annotated, Literal
+
+from pydantic import BaseModel, ConfigDict, Field, StrictBool, model_validator
+
+#: The SDK's `MemoryLayer` values (hy-memory 2.0.9).
+MemoryLayerName = Literal[
+    "l0_basic_info",
+    "l1_raw",
+    "l2_fact",
+    "l3_summary",
+    "l4_identity",
+    "l5_knowledge",
+    "l6_schema",
+    "l7_intention",
+]
+MEMORY_LAYERS: tuple[str, ...] = (
+    "l0_basic_info",
+    "l1_raw",
+    "l2_fact",
+    "l3_summary",
+    "l4_identity",
+    "l5_knowledge",
+    "l6_schema",
+    "l7_intention",
+)
+#: The SDK's `MemoryStatus` values.
+MEMORY_STATUSES: tuple[str, ...] = (
+    "active",
+    "superseded",
+    "negated",
+    "conflicted",
+    "shadow",
+    "archived",
+)
+SearchScene = Literal["chat", "working", "coding", "all"]
+#: Which recall lane produced a hit, for the floor that applies to it.
+SearchLane = Literal["normal", "schema", "proactive", "working", "coding", "raw"]
+
+Score = Annotated[float, Field(ge=0.0, le=1.0)]
+SourceName = Annotated[str, Field(min_length=1, max_length=128)]
+ScopeId = Annotated[str, Field(min_length=1, max_length=512)]
+
+
+class SdkSearchFilters(BaseModel):
+    """Filters and floors every search route accepts (recall, context, ask)."""
+
+    model_config = ConfigDict(frozen=True, extra="forbid")
+
+    #: Chat lane floor; with nothing more specific, every lane's.
+    min_score: Score | None = None
+    #: Schema (L6) lane floor; defaults to `min_score` when only that is set.
+    schema_min_score: Score | None = None
+    #: False skips the SDK's reranking stages for this call.
+    rerank: StrictBool | None = None
+    include_sources: tuple[SourceName, ...] | None = Field(default=None, max_length=64)
+    exclude_sources: tuple[SourceName, ...] | None = Field(default=None, max_length=64)
+    #: Unix seconds: only memories created at or after it.
+    created_after: float | None = Field(default=None, ge=0)
+    session_ids: tuple[ScopeId, ...] | None = Field(default=None, max_length=64)
+    agent_ids: tuple[ScopeId, ...] | None = Field(default=None, max_length=64)
+    #: Only these layers (pro/ultra; lite always searches raw).
+    layers: tuple[MemoryLayerName, ...] | None = Field(default=None, min_length=1, max_length=8)
+
+    def filter_kwargs(self) -> dict[str, object]:
+        """The SDK keyword arguments this request sets, and only those."""
+        values: dict[str, object] = {}
+        for name in (
+            "min_score",
+            "schema_min_score",
+            "rerank",
+            "created_after",
+        ):
+            value = getattr(self, name)
+            if value is not None:
+                values[name] = value
+        for name in ("include_sources", "exclude_sources", "session_ids", "agent_ids", "layers"):
+            value = getattr(self, name)
+            if value is not None:
+                values[name] = list(dict.fromkeys(value))
+        if self.min_score is not None and self.schema_min_score is None:
+            values["schema_min_score"] = self.min_score
+        return values
+
+    def lane_floor(self, lane: SearchLane) -> float | None:
+        """The caller's floor for one lane, or None when the caller set none."""
+        if lane == "schema":
+            return self.schema_min_score if self.schema_min_score is not None else self.min_score
+        return self.min_score
+
+    def passes_floor(self, lane: SearchLane, score: float) -> bool:
+        floor = self.lane_floor(lane)
+        return floor is None or score >= floor
+
+    def search_overrides(self) -> Mapping[str, object]:
+        return self.filter_kwargs()
+
+
+class SdkSearchOptions(SdkSearchFilters):
+    """Every SDK search knob a recall or context caller may set."""
+
+    #: working/coding fact-layer floor (SDK default 0.30).
+    working_fact_min_score: Score | None = None
+    #: working/coding experience-layer floor (SDK default fact floor + 0.10).
+    working_experience_min_score: Score | None = None
+    reader: Literal["legacy", "hybrid"] | None = None
+    #: chat (the default), working, coding, or all three fused.
+    scene: SearchScene | None = None
+    #: agentic spends one model call to classify and rewrite the query.
+    search_mode: Literal["default", "agentic"] | None = None
+    #: working/coding lanes only; `branch` needs `workspace_id`.
+    workspace_id: ScopeId | None = None
+    branch: ScopeId | None = None
+
+    @model_validator(mode="after")
+    def branch_needs_workspace(self) -> SdkSearchOptions:
+        if self.branch is not None and self.workspace_id is None:
+            raise ValueError("branch requires workspace_id")
+        return self
+
+    def search_overrides(self) -> Mapping[str, object]:
+        values = self.filter_kwargs()
+        for name in (
+            "working_fact_min_score",
+            "working_experience_min_score",
+            "reader",
+            "scene",
+            "search_mode",
+            "workspace_id",
+            "branch",
+        ):
+            value = getattr(self, name)
+            if value is not None:
+                values[name] = value
+        if self.min_score is not None and self.working_fact_min_score is None:
+            values["working_fact_min_score"] = self.min_score
+        if self.min_score is not None and self.working_experience_min_score is None:
+            values["working_experience_min_score"] = self.min_score
+        return values
+
+    def lane_floor(self, lane: SearchLane) -> float | None:
+        if lane in {"working", "coding"}:
+            explicit = [
+                value
+                for value in (self.working_fact_min_score, self.working_experience_min_score)
+                if value is not None
+            ]
+            # Facts and experiences share one score field on a fused hit, so
+            # the looser of the two floors is the one Core can enforce.
+            return min(explicit) if explicit else self.min_score
+        return super().lane_floor(lane)
+
+
+def split_csv(values: list[str] | None) -> list[str]:
+    """Query values given repeated (`a&a`) or comma separated (`a,b`)."""
+    found: list[str] = []
+    for value in values or ():
+        found.extend(part.strip() for part in value.split(",") if part.strip())
+    return list(dict.fromkeys(found))
diff --git a/memhub/apps/core/src/one_memory/semantic_deadline.py b/memhub/apps/core/src/one_memory/semantic_deadline.py
index 1b2f883..a3c14fe 100644
--- a/memhub/apps/core/src/one_memory/semantic_deadline.py
+++ b/memhub/apps/core/src/one_memory/semantic_deadline.py
@@ -27,6 +27,11 @@ class SemanticMemoryHit:
     member_ids: tuple[str, ...] = ()
     sdk_formatted: bool = False
     formatting_complete: bool = False
+    #: The recall lane that produced the hit (`sdk_search_options.SearchLane`)
+    #: and the namespace to read it back from. Defaults are a chat memory.
+    lane: str = "normal"
+    kind: str = "chat"
+    variant: str | None = None
 
     def as_dict(self) -> dict[str, object]:
         return {
diff --git a/memhub/apps/core/tests/TEST_INDEX.md b/memhub/apps/core/tests/TEST_INDEX.md
index b29b94a..bbaf9c7 100644
--- a/memhub/apps/core/tests/TEST_INDEX.md
+++ b/memhub/apps/core/tests/TEST_INDEX.md
@@ -248,6 +248,7 @@
 | `test_schema_gate.py` | `contract` | 覆盖 fresh database records the build schema、future schema refuses to open、legacy database without a ledger is left untouched 场景。 |
 | `test_schema_migrations.py` | `contract` | 覆盖 evidence store adds source ordinal to previous schema、import store migrates previous job and error schema、old active job index lets a sync sit beside paused history 等 4 个场景。 |
 | `test_schema_ownership_gate.py` | `contract` | A1-03/A1-04: schema ownership, and the hard part of telling DDL from reads. |
+| `test_sdk_api_surface.py` | `contract` | The SDK surface MemHub exposes: search pass-through, layers, raw, v2 aliases. |
 | `test_sdk_client_construction.py` | `contract` | SDK clients of one home are constructed one at a time. |
 | `test_sdk_data_plane_migration.py` | `contract` | SDK-authority migration ledger, aliases and atomic cutover marker. |
 | `test_sdk_memory_qa.py` | `contract` | 覆盖 sdk ask propagates sdk search failure without legacy fallback、sdk ask revalidates memory before returning extract、sdk ask uses native sdk memory without governance fields 场景。 |
@@ -311,4 +312,4 @@
 | `test_workspace_recall.py` | `contract` | Workspace memories were unreachable from every host; these pin the way in. |
 | `test_write_queue_lease_renewal.py` | `contract` | Rule 8: a lease must outlive the work it covers, and be renewed while it runs. |
 
-共 306 个测试文件。
+共 307 个测试文件。
diff --git a/memhub/apps/core/tests/core_test_classification.py b/memhub/apps/core/tests/core_test_classification.py
index a441cc5..23d2315 100644
--- a/memhub/apps/core/tests/core_test_classification.py
+++ b/memhub/apps/core/tests/core_test_classification.py
@@ -14,8 +14,8 @@ from pathlib import Path
 import pytest
 
 PRIMARY_MARKERS = ("unit", "contract", "integration", "performance", "live")
-EXPECTED_TEST_FILE_COUNT = 306
-EXPECTED_TEST_FILES_SHA256 = "e616dcf9fea288bf15a4445045f7b4278517f3304091c04fffd55be80308d481"
+EXPECTED_TEST_FILE_COUNT = 307
+EXPECTED_TEST_FILES_SHA256 = "96a9ed11e358791723fb5ad827f72da2e9caeb673841119a5d9856a2d76fd5b1"
 
 # Pure transformations, validation models, parity checks and state machines.
 # This list is intentionally small: uncertain files default to contract.
diff --git a/memhub/apps/core/tests/test_sdk_api_surface.py b/memhub/apps/core/tests/test_sdk_api_surface.py
new file mode 100644
index 0000000..a907328
--- /dev/null
+++ b/memhub/apps/core/tests/test_sdk_api_surface.py
@@ -0,0 +1,744 @@
+"""The SDK surface MemHub exposes: search pass-through, layers, raw, v2 aliases.
+
+P2-1 (R8): `context/search`, `recall` and the v2 ask routes pass the public
+`client.search` knobs through, validated, and keep a caller's floor on what
+they return. P2-2 (R9): the library honours `layers`, `statuses`, `scene` and
+the source/session/agent filters, and counts memories per layer. P2-4: raw
+lists the SDK's L1 raw turns, active and shadow. P2-3: v2 aliases of the
+source and import routes, per user. Profile versions read the L0 chain.
+
+Every route stays scoped to its one `user_id`; the stand-in client records
+each call so a test can see exactly what reached the SDK.
+"""
+
+from __future__ import annotations
+
+import asyncio
+import hashlib
+import sqlite3
+from contextlib import asynccontextmanager
+from pathlib import Path
+from uuid import uuid4
+
+import pytest
+from httpx import ASGITransport, AsyncClient
+from pydantic import SecretStr
+
+from one_memory.api import create_app
+from one_memory.config import Settings
+from one_memory.imports.sources.registry import build_source_catalog
+from one_memory.secrets import InMemorySecretStore
+
+TOKEN = "sdk-surface-test"
+
+CHAT_ROWS = {
+    "local": [
+        ("m-high", "local likes green tea", 0.95, "l2_fact", "hermes"),
+        ("m-mid", "local walks at dawn", 0.6, "l2_fact", "codex"),
+    ],
+    "wife": [("w-high", "wife likes coffee", 0.92, "l2_fact", "hermes")],
+}
+RAW_ROWS = {
+    "local": [
+        {
+            "memory_id": "raw-1",
+            "content": "[user]: 我叫费天翔\n[assistant]: 好的，记住了。",
+            "status": "shadow",
+            "session_id": "s-1",
+            "source": "hermes",
+            "memory_at": 1_790_000_000,
+            "gmt_created": 1_790_000_100,
+        },
+        {
+            "memory_id": "raw-2",
+            "content": "[user]: 你好",
+            "status": "active",
+            "session_id": "s-2",
+            "source": "codex",
+            "memory_at": 1_790_100_000,
+            "gmt_created": 1_790_100_100,
+        },
+    ],
+    "wife": [
+        {
+            "memory_id": "raw-w",
+            "content": "[user]: I am the wife",
+            "status": "active",
+            "session_id": "s-w",
+            "source": "hermes",
+            "memory_at": 1_790_000_000,
+            "gmt_created": 1_790_000_000,
+        }
+    ],
+}
+
+
+def _chat(user_id: str, memory_id: str, content: str, layer: str, source: str) -> dict:
+    return {
+        "memory_id": memory_id,
+        "content": content,
+        "layer": layer,
+        "status": "active",
+        "user_id": user_id,
+        "agent_id": "all-apps",
+        "session_id": "s-1",
+        "source": source,
+        "tags": [],
+        "gmt_created": 1_790_000_000,
+    }
+
+
+class RecordingSdk:
+    """The public client surface, recording every call's keyword arguments."""
+
+    def __init__(self) -> None:
+        self.calls: list[tuple[str, dict]] = []
+
+    def _record(self, name: str, kwargs: dict) -> None:
+        self.calls.append((name, dict(kwargs)))
+
+    def last(self, name: str) -> dict:
+        return [kwargs for called, kwargs in self.calls if called == name][-1]
+
+    def all(self, name: str) -> list[dict]:
+        return [kwargs for called, kwargs in self.calls if called == name]
+
+    # The SDK answers rows below a caller's floor in some lanes (a schema
+    # floor, a fused rank score), so Core must filter what it returns.
+    def search(self, query, **kwargs):
+        self._record("search", {"query": query, **kwargs})
+        [user_id] = kwargs["user_ids"]
+        if kwargs.get("layers") == ["l1_raw"]:
+            hits = [
+                {**row, "user_id": user_id, "agent_id": "all-apps", "score": score}
+                for row, score in zip(RAW_ROWS.get(user_id, []), (0.97, 0.3), strict=False)
+            ]
+            return {"request_id": "s", "memories": hits}
+        rows = [
+            {**_chat(user_id, mid, text, layer, source), "score": score}
+            for mid, text, score, layer, source in CHAT_ROWS.get(user_id, [])
+        ]
+        scene = kwargs.get("scene")
+        if scene == "all":
+            fused = [
+                {**row, "scene": "chat", "kind": "chat", "lane_score": row["score"], "score": 0.016}
+                for row in rows
+            ]
+            return {"request_id": "s", "scene": "all", "memories": fused, "lanes": {}, "errors": {}}
+        if scene in {"working", "coding"}:
+            return {
+                "request_id": "s",
+                "scene": "productivity",
+                "variant": scene,
+                "facts": [
+                    {"fact_id": "f-1", "statement": "use uv", "score": 0.91, "user_id": user_id}
+                ],
+                "experiences": [],
+            }
+        return {
+            "request_id": "s",
+            "scene": "normal",
+            "memories": {"normal": rows, "schema": [], "proactive": []},
+        }
+
+    def get(self, memory_id, kind=None, variant=None):
+        self._record("get", {"memory_id": memory_id, "kind": kind, "variant": variant})
+        if kind == "fact":
+            return {
+                "kind": "fact",
+                "variant": variant,
+                "fact_id": memory_id,
+                "statement": "use uv",
+                "status": "active",
+                "user_id": "local",
+            }
+        for user_id, rows in CHAT_ROWS.items():
+            for mid, text, _score, layer, source in rows:
+                if mid == memory_id:
+                    return {**_chat(user_id, mid, text, layer, source), "kind": "chat"}
+        return None
+
+    def list_memories(self, **kwargs):
+        self._record("list_memories", kwargs)
+        user_id = kwargs["user_id"]
+        layers = kwargs.get("layers")
+        if layers == ["l1_raw"]:
+            statuses = set(kwargs.get("statuses") or ["active"])
+            rows = [
+                {**row, "layer": "l1_raw", "user_id": user_id, "agent_id": "all-apps"}
+                for row in RAW_ROWS.get(user_id, [])
+                if row["status"] in statuses
+                and (
+                    not kwargs.get("include_sources") or row["source"] in kwargs["include_sources"]
+                )
+                and (not kwargs.get("session_ids") or row["session_id"] in kwargs["session_ids"])
+            ]
+            return {"vdb": {"memories": rows, "total": len(rows)}}
+        rows = [_chat(user_id, *row[:2], *row[3:]) for row in CHAT_ROWS.get(user_id, [])]
+        if layers:
+            rows = [row for row in rows if row["layer"] in layers]
+            if "l0_basic_info" in layers:
+                rows.append(_chat(user_id, "l0-1", "name is Fei", "l0_basic_info", "hermes"))
+        if kwargs.get("scene") == "all":
+            return {
+                "scene": "all",
+                "memories": [{**row, "scene": "chat", "kind": "chat"} for row in rows],
+                "total": len(rows),
+                "totals": {"chat": len(rows), "working": 0, "coding": 0},
+                "errors": {},
+            }
+        return {"vdb": {"memories": rows, "total": len(rows)}}
+
+    def memory_stats(self, *, user_id, statuses=None):
+        return {"total": 0, "request_id": "stats", "elapsed_ms": 1.0}
+
+    def get_user_basic_info(self, *, user_id):
+        self._record("get_user_basic_info", {"user_id": user_id})
+        return {
+            "request_id": f"basic-{user_id}",
+            "elapsed_ms": 1.5,
+            "memories": [
+                {
+                    "memory_id": f"{user_id}-l0-head",
+                    "content": "The user's name is Fei.",
+                    "layer": "l0_basic_info",
+                    "status": "active",
+                    "memory_at": 1_790_000_100,
+                    "gmt_created": 1_790_000_100,
+                    "tags": [],
+                    "basic_info_kv": {"name": "Fei"},
+                    "evolution_chain": [
+                        {
+                            "node_id": f"{user_id}-l0-head",
+                            "content": "The user's name is Fei.",
+                            "memory_at": "2026-10-31 10:00",
+                            "gmt_created": 1_790_000_100,
+                            "layer": "l0_basic_info",
+                        },
+                        {
+                            "node_id": f"{user_id}-l0-old",
+                            "content": "The user's name is 费天翔.",
+                            "memory_at": "2026-10-30 10:00",
+                            "gmt_created": 1_790_000_000,
+                            "layer": "l0_basic_info",
+                        },
+                    ],
+                }
+            ],
+        }
+
+
+class Handle:
+    def __init__(self, sdk: RecordingSdk) -> None:
+        self.sdk = sdk
+
+    async def client(self) -> RecordingSdk:
+        return self.sdk
+
+    async def close(self) -> None:
+        return None
+
+
+def application(tmp_path: Path, *, home: Path | None = None):
+    settings = Settings(
+        data_dir=tmp_path / "data",
+        source_home=home or tmp_path,
+        api_token=SecretStr(TOKEN),
+        imports_enabled=home is not None,
+        automatic_memory_processing=False,
+        live_sync_enabled=False,
+    )
+    return create_app(
+        settings,
+        secret_store=InMemorySecretStore(),
+        source_catalog=(
+            build_source_catalog(home=home, environment={}, platform="darwin")
+            if home is not None
+            else None
+        ),
+    )
+
+
+def client_for(app) -> AsyncClient:
+    return AsyncClient(
+        transport=ASGITransport(app=app),
+        base_url="http://test",
+        headers={"Authorization": f"Bearer {TOKEN}"},
+    )
+
+
+async def _model_ready(_app) -> bool:
+    return True
+
+
+def run_with_sdk(tmp_path, monkeypatch, scenario) -> None:
+    async def main() -> None:
+        app = application(tmp_path)
+        sdk = RecordingSdk()
+
+        @asynccontextmanager
+        async def write_client():
+            yield sdk
+
+        async with app.router.lifespan_context(app):
+            app.state.sdk_client_handle = Handle(sdk)
+            monkeypatch.setattr(app.state.sdk_write_coordinator, "use_client", write_client)
+            monkeypatch.setattr("one_memory.api._recall_model_ready", _model_ready)
+            async with client_for(app) as client:
+                await scenario(app, sdk, client)
+
+    asyncio.run(main())
+
+
+PASS_THROUGH = {
+    "min_score": 0.5,
+    "schema_min_score": 0.6,
+    "working_fact_min_score": 0.3,
+    "working_experience_min_score": 0.45,
+    "schema_limit": 4,
+    "intention_limit": 2,
+    "rerank": False,
+    "reader": "legacy",
+    "scene": "chat",
+    "search_mode": "agentic",
+    "include_sources": ["hermes", "codex"],
+    "exclude_sources": ["cursor"],
+    "created_after": 1_780_000_000,
+    "session_ids": ["s-1"],
+    "agent_ids": ["all-apps"],
+    "workspace_id": "ws-1",
+    "branch": "main",
+    "layers": ["l2_fact", "l0_basic_info"],
+}
+#: How each field reaches `client.search` (lists stay lists).
+EXPECTED_SEARCH = {**PASS_THROUGH}
+
+
+def _memory_search(sdk: RecordingSdk) -> dict:
+    return [call for call in sdk.all("search") if call.get("layers") != ["l1_raw"]][-1]
+
+
+@pytest.mark.fresh_sdk
+def test_every_context_search_option_reaches_the_sdk_and_absent_ones_keep_the_old_call(
+    tmp_path, monkeypatch
+) -> None:
+    async def scenario(app, sdk, client):
+        baseline = await client.post(
+            "/api/v2/context/search", json={"query": "tea", "kinds": ["memory"]}
+        )
+        assert baseline.status_code == 200, baseline.text
+        before = _memory_search(sdk)
+        assert before["min_score"] == before["schema_min_score"] == 0.35
+        assert before["scene"] == "normal" and before["reader"] == "hybrid"
+        assert before["schema_limit"] == 3 and before["intention_limit"] == 1
+        for absent in ("rerank", "search_mode", "layers", "session_ids", "created_after"):
+            assert absent not in before
+
+        response = await client.post(
+            "/api/v2/context/search",
+            json={"query": "tea", "kinds": ["memory"], **PASS_THROUGH},
+        )
+        assert response.status_code == 200, response.text
+        sent = _memory_search(sdk)
+        for name, value in EXPECTED_SEARCH.items():
+            assert sent[name] == value, name
+        assert sent["user_ids"] == ["local"]
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_every_recall_and_ask_option_reaches_the_sdk(tmp_path, monkeypatch) -> None:
+    async def scenario(app, sdk, client):
+        recalled = await client.post(
+            "/api/v1/recall", json={"query": "tea", "user_id": "wife", **PASS_THROUGH}
+        )
+        assert recalled.status_code == 200, recalled.text
+        sent = _memory_search(sdk)
+        for name, value in EXPECTED_SEARCH.items():
+            assert sent[name] == value, name
+        assert sent["user_ids"] == ["wife"]
+
+        ask_options = {
+            name: value
+            for name, value in PASS_THROUGH.items()
+            if name
+            not in {
+                "working_fact_min_score",
+                "working_experience_min_score",
+                "schema_limit",
+                "intention_limit",
+                "reader",
+                "scene",
+                "search_mode",
+                "workspace_id",
+                "branch",
+            }
+        }
+        asked = await client.post(
+            "/api/v2/memories/ask", json={"question": "tea?", "user_id": "wife", **ask_options}
+        )
+        assert asked.status_code == 200, asked.text
+        sent = _memory_search(sdk)
+        for name, value in ask_options.items():
+            assert sent[name] == value, name
+        assert sent["user_ids"] == ["wife"] and sent["scene"] == "normal"
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_min_score_is_enforced_on_what_core_returns(tmp_path, monkeypatch) -> None:
+    """Acceptance item 9: `min_score=0.9` answers only results scoring ≥ 0.9."""
+
+    async def scenario(app, sdk, client):
+        context = await client.post(
+            "/api/v2/context/search", json={"query": "tea", "min_score": 0.9}
+        )
+        assert context.status_code == 200, context.text
+        items = context.json()["items"]
+        assert items and all(item["score"] >= 0.9 for item in items)
+        assert {item.get("memory_id") or item.get("raw_id") for item in items} == {
+            "m-high",
+            "raw-1",
+        }
+        raw_call = sdk.last("search") if sdk.last("search").get("layers") else None
+        assert raw_call is None or raw_call["min_score"] == 0.9
+
+        # The fused scene ranks by 1/(60+rank); the lane's own score is the floor's.
+        fused = await client.post(
+            "/api/v2/context/search",
+            json={"query": "tea", "kinds": ["memory"], "scene": "all", "min_score": 0.9},
+        )
+        assert [item["memory_id"] for item in fused.json()["items"]] == ["m-high"]
+        assert fused.json()["items"][0]["score"] == 0.95
+
+        recalled = await client.post("/api/v1/recall", json={"query": "tea", "min_score": 0.9})
+        assert recalled.status_code == 200, recalled.text
+        assert [hit["memory_id"] for hit in recalled.json()["hits"]] == ["m-high"]
+
+        # A working-scene fact is read back from its own namespace.
+        working = await client.post(
+            "/api/v2/context/search",
+            json={"query": "uv", "kinds": ["memory"], "scene": "working", "min_score": 0.9},
+        )
+        assert [item["memory_id"] for item in working.json()["items"]] == ["f-1"]
+        assert sdk.last("get") == {"memory_id": "f-1", "kind": "fact", "variant": "working"}
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+@pytest.mark.parametrize(
+    "extra",
+    [
+        {"min_score": 1.5},
+        {"min_score": -0.1},
+        {"schema_min_score": "high"},
+        {"scene": "normal"},
+        {"search_mode": "fast"},
+        {"reader": "vector"},
+        {"layers": ["l9_nothing"]},
+        {"layers": []},
+        {"branch": "main"},
+        {"rerank": "no"},
+        {"created_after": -1},
+        {"user_ids": ["wife"]},
+        {"embed_override": {"model": "x"}},
+        {"query_embedding": [0.1]},
+        {"request_id": "r-1"},
+    ],
+)
+def test_out_of_range_and_unexposed_search_fields_answer_422(tmp_path, extra) -> None:
+    async def scenario():
+        app = application(tmp_path)
+        async with app.router.lifespan_context(app), client_for(app) as client:
+            for path, body in (
+                ("/api/v2/context/search", {"query": "q"}),
+                ("/api/v1/recall", {"query": "q"}),
+                ("/api/v2/memories/ask", {"question": "q"}),
+            ):
+                response = await client.post(path, json={**body, **extra})
+                assert response.status_code == 422, (path, response.text)
+
+    asyncio.run(scenario())
+
+
+@pytest.mark.fresh_sdk
+def test_raw_lane_takes_the_callers_sources_only_inside_its_authority(
+    tmp_path, monkeypatch
+) -> None:
+    async def scenario(app, sdk, client):
+        response = await client.post(
+            "/api/v2/context/search",
+            json={
+                "query": "tea",
+                "kinds": ["raw"],
+                "include_sources": ["hermes"],
+                "session_ids": ["s-1"],
+                "created_after": 1_700_000_000,
+            },
+        )
+        assert response.status_code == 200, response.text
+        raw_call = sdk.last("search")
+        assert raw_call["layers"] == ["l1_raw"]
+        assert raw_call["include_sources"] == ["hermes"]
+        assert raw_call["session_ids"] == ["s-1"]
+        assert raw_call["created_after"] == 1_700_000_000
+        # Memory-lane knobs never reach the raw search.
+        assert raw_call["scene"] == "chat" and raw_call["schema_limit"] == 0
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_library_honours_layers_statuses_and_filters(tmp_path, monkeypatch) -> None:
+    """Acceptance item 10: `layer=l0_basic_info` returns only L0 records."""
+
+    async def scenario(app, sdk, client):
+        page = await client.get("/api/v2/memory-library", params={"layer": "l0_basic_info"})
+        assert page.status_code == 200, page.text
+        assert {memory["layer"] for memory in page.json()["memories"]} == {"l0_basic_info"}
+        sent = sdk.last("list_memories")
+        assert sent["layers"] == ["l0_basic_info"] and sent["scene"] is None
+
+        await client.get(
+            "/api/v2/memory-library",
+            params=[
+                ("layers", "l2_fact,l6_schema"),
+                ("layers", "l7_intention"),
+                ("statuses", "active,superseded"),
+                ("session_ids", "s-1"),
+                ("agent_ids", "all-apps"),
+                ("exclude_sources", "cursor"),
+                ("user_id", "wife"),
+            ],
+        )
+        sent = sdk.last("list_memories")
+        assert sent["layers"] == ["l2_fact", "l6_schema", "l7_intention"]
+        assert sent["statuses"] == ["active", "superseded"]
+        assert sent["session_ids"] == ["s-1"] and sent["agent_ids"] == ["all-apps"]
+        assert sent["exclude_sources"] == ["cursor"] and sent["user_id"] == "wife"
+
+        # Without a layer the page is what it always was.
+        await client.get("/api/v2/memory-library")
+        sent = sdk.last("list_memories")
+        assert sent["scene"] == "all" and "layers" not in sent
+
+        searched = await client.get(
+            "/api/v2/memory-library", params={"query": "tea", "layers": "l2_fact"}
+        )
+        assert searched.status_code == 200, searched.text
+        assert sdk.last("search")["layers"] == ["l2_fact"]
+
+        for params in (
+            {"layers": "l9_nothing"},
+            {"statuses": "gone"},
+            {"layers": "l2_fact", "scene": "working"},
+        ):
+            refused = await client.get("/api/v2/memory-library", params=params)
+            assert refused.status_code == 422, (params, refused.text)
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_layer_counts_read_each_layer_for_one_user(tmp_path, monkeypatch) -> None:
+    async def scenario(app, sdk, client):
+        counts = await client.get("/api/v2/memory-library/layers", params={"user_id": "wife"})
+        assert counts.status_code == 200, counts.text
+        body = counts.json()
+        assert body["layers"]["l1_raw"] == 1
+        assert body["layers"]["l2_fact"] == 1
+        assert body["layers"]["l0_basic_info"] == 1
+        assert body["total"] == sum(body["layers"].values())
+        calls = sdk.all("list_memories")
+        assert {call["user_id"] for call in calls} == {"wife"}
+        [raw_call] = [call for call in calls if call["layers"] == ["l1_raw"]]
+        assert raw_call["statuses"] == ["active", "shadow"]
+        assert (
+            await client.get("/api/v2/memory-library/layers", params={"layer": "x"})
+        ).status_code == 422
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_raw_lists_active_and_shadow_turns_with_roles_and_hashes(tmp_path, monkeypatch) -> None:
+    async def scenario(app, sdk, client):
+        page = await client.get("/api/v2/raw")
+        assert page.status_code == 200, page.text
+        body = page.json()
+        assert body["total"] == 2 and len(body["items"]) == 2
+        sent = sdk.last("list_memories")
+        assert sent["layers"] == ["l1_raw"] and sent["statuses"] == ["active", "shadow"]
+        first = next(item for item in body["items"] if item["raw_id"] == "raw-1")
+        assert first["status"] == "shadow"
+        assert [message["role"] for message in first["messages"]] == ["user", "assistant"]
+        assert first["messages"][0]["content"] == "我叫费天翔"
+        assert first["role"] is None
+        expected = hashlib.sha256(first["content"].encode()).hexdigest()
+        assert first["content_hash"] == f"sha256:{expected}"
+        assert first["session_id"] == "s-1" and first["source"] == "hermes"
+        assert first["created"].startswith("2026-")
+        second = next(item for item in body["items"] if item["raw_id"] == "raw-2")
+        assert second["role"] == "user"
+
+        await client.get(
+            "/api/v2/raw",
+            params=[("source", "hermes,codex"), ("session_id", "s-1"), ("order", "asc")],
+        )
+        sent = sdk.last("list_memories")
+        assert sent["include_sources"] == ["hermes", "codex"]
+        assert sent["session_ids"] == ["s-1"] and sent["order"] == "asc"
+
+        windowed = (await client.get("/api/v2/raw", params={"after": 1_790_050_000})).json()
+        assert windowed["time_filtered"] is True
+        assert [item["raw_id"] for item in windowed["items"]] == ["raw-2"]
+
+        wife = (await client.get("/api/v2/raw", params={"user_id": "wife"})).json()
+        assert [item["raw_id"] for item in wife["items"]] == ["raw-w"]
+        assert sdk.last("list_memories")["user_id"] == "wife"
+        assert (await client.get("/api/v2/raw", params={"statuses": "bogus"})).status_code == 422
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_profile_versions_read_the_l0_chain_for_one_user(tmp_path, monkeypatch) -> None:
+    async def scenario(app, sdk, client):
+        response = await client.get("/api/v2/user-profile/versions", params={"user_id": "wife"})
+        assert response.status_code == 200, response.text
+        body = response.json()
+        assert body["user_id"] == "wife"
+        assert sdk.last("get_user_basic_info") == {"user_id": "wife"}
+        [chain] = body["chains"]
+        assert chain["memory_id"] == "wife-l0-head"
+        assert chain["basic_info"] == {"name": "Fei"}
+        assert [(v["memory_id"], v["current"]) for v in chain["versions"]] == [
+            ("wife-l0-head", True),
+            ("wife-l0-old", False),
+        ]
+        local = (await client.get("/api/v2/user-profile/versions")).json()
+        assert local["user_id"] == "local"
+        assert sdk.last("get_user_basic_info") == {"user_id": "local"}
+        refused = await client.get("/api/v2/user-profile/versions", params={"owner": "wife"})
+        assert refused.status_code == 422
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+@pytest.mark.fresh_sdk
+def test_graph_takes_layers_and_session_filters(tmp_path, monkeypatch) -> None:
+    async def scenario(app, sdk, client):
+        response = await client.get(
+            "/api/v2/memories/graph",
+            params={"layers": "l2_fact", "session_ids": "s-1", "user_id": "wife"},
+        )
+        assert response.status_code == 200, response.text
+        sent = sdk.last("list_memories")
+        assert sent["layers"] == ["l2_fact"] and sent["scene"] is None
+        assert sent["session_ids"] == ["s-1"] and sent["user_id"] == "wife"
+
+    run_with_sdk(tmp_path, monkeypatch, scenario)
+
+
+def _hermes_state_db(root: Path, text: str) -> None:
+    root.mkdir(parents=True, exist_ok=True)
+    connection = sqlite3.connect(root / "state.db")
+    connection.execute(
+        "CREATE TABLE messages (id INTEGER PRIMARY KEY, session_id TEXT, role TEXT,"
+        " content TEXT, timestamp REAL, tool_name TEXT, active INTEGER)"
+    )
+    connection.executemany(
+        "INSERT INTO messages VALUES (?, ?, ?, ?, 1790000000, NULL, 1)",
+        [(1, "session-1", "user", text), (2, "session-1", "assistant", "ok")],
+    )
+    connection.commit()
+    connection.close()
+
+
+@pytest.mark.fresh_sdk
+def test_v2_source_and_import_aliases_behave_like_v1_per_user(tmp_path) -> None:
+    async def scenario():
+        home = tmp_path / "home"
+        hermes = home / ".hermes"
+        wife = hermes / "profiles" / "wife"
+        _hermes_state_db(hermes, "I am the husband")
+        _hermes_state_db(wife, "I am the wife")
+        app = application(tmp_path, home=home)
+        async with app.router.lifespan_context(app), client_for(app) as client:
+            location = (await client.post("/api/v1/sources/hermes/location")).json()
+            local = await client.post(
+                "/api/v1/sources/connect",
+                json={
+                    "source_ids": ["hermes"],
+                    "request_id": str(uuid4()),
+                    "source_roots": {"hermes": location["root_id"]},
+                    "enable_sync": True,
+                },
+            )
+            assert local.status_code == 200, local.text
+            connected = await client.post(
+                "/api/v1/sources/connect",
+                json={
+                    "source_ids": ["hermes"],
+                    "request_id": str(uuid4()),
+                    "user_id": "wife",
+                    "root": str(wife),
+                },
+            )
+            assert connected.status_code == 200, connected.text
+            for job in (*local.json()["jobs"], *connected.json()["jobs"]):
+                await app.state.import_supervisor.wait(job["job_id"])
+
+            v1 = (await client.get("/api/v1/sources")).json()
+            v2 = (await client.get("/api/v2/sources")).json()
+            assert v1 == v2
+            wife_sources = (await client.get("/api/v2/sources", params={"user_id": "wife"})).json()
+            assert [source["source_id"] for source in wife_sources] == ["hermes"]
+            assert wife_sources[0]["authorized"] is True
+            assert (await client.get("/api/v2/sources", params={"u": "x"})).status_code == 422
+
+            created = await client.post(
+                "/api/v2/import-jobs",
+                json={"source_id": "hermes", "operation": "sync", "user_id": "wife"},
+            )
+            assert created.status_code == 200, created.text
+            wife_job = created.json()
+            assert wife_job["user_id"] == "wife" and wife_job["source_id"] == "hermes"
+            await app.state.import_supervisor.wait(wife_job["job_id"])
+            refused = await client.post(
+                "/api/v2/import-jobs",
+                json={"source_id": "claude-code", "user_id": "wife"},
+            )
+            assert refused.status_code in {404, 422}
+            unknown = await client.post(
+                "/api/v2/import-jobs",
+                json={"source_id": "hermes", "from_beginning": True},
+            )
+            assert unknown.status_code == 422
+
+            listed = (await client.get("/api/v2/import-jobs", params={"user_id": "wife"})).json()
+            assert {job["user_id"] for job in listed} == {"wife"}
+            assert (await client.get("/api/v2/import-jobs")).json() == (
+                await client.get("/api/v1/import-jobs")
+            ).json()
+            path = f"/api/v2/import-jobs/{wife_job['job_id']}"
+            assert (await client.get(path)).status_code == 404
+            own = await client.get(path, params={"user_id": "wife"})
+            assert own.status_code == 200 and own.json()["job_id"] == wife_job["job_id"]
+
+            synced = await client.post("/api/v2/sources/hermes/sync", json={"user_id": "wife"})
+            v1_synced = await client.post("/api/v1/sources/hermes/sync")
+            assert synced.status_code == v1_synced.status_code, (synced.text, v1_synced.text)
+            assert synced.status_code == 200
+            assert synced.json()["user_id"] == "wife"
+            assert v1_synced.json()["user_id"] == "local"
+            other = await client.post("/api/v2/sources/claude-code/sync", json={"user_id": "wife"})
+            assert other.status_code in {404, 422}
+            assert (
+                await client.post("/api/v2/sources/hermes/sync", json={"owner": "wife"})
+            ).status_code == 422
+
+    asyncio.run(scenario())
diff --git a/memhub/docs/cli/EXPERIENCE.md b/memhub/docs/cli/EXPERIENCE.md
index 09c024a..a2233a4 100644
--- a/memhub/docs/cli/EXPERIENCE.md
+++ b/memhub/docs/cli/EXPERIENCE.md
@@ -142,6 +142,16 @@ node apps/cli/dist/one-memory.cjs write status <request_id> --user-id wife
 - 不带 `--user-id`（或写 `--user-id local`）时请求里不出现 `user_id`，和以前完全一样。
 - 用户之间互相隔离：读、改、删另一个用户的记忆 ID 返回「未找到」；write 的 request id 也只属于提交它的用户。
 
+### 画像版本（`profile --versions`）
+
+```bash
+node apps/cli/dist/one-memory.cjs profile --versions            # L0 画像版本链，最新在前，* 为当前版本
+node apps/cli/dist/one-memory.cjs profile --versions --user-id wife --json
+```
+
+用于找出覆盖了正确值的错误版本（例如 `用户` / `The user`），再用
+`memories delete <memory-id> --yes` 删除；对应 `GET /api/v2/user-profile/versions`。
+
 ## 8. 召回（recall）
 
 `recall` 两条路径（raw / memory）此前已真机验证。文本输出会标明每条是「原始对话摘录」
diff --git a/memhub/packages/contracts/src/index.ts b/memhub/packages/contracts/src/index.ts
index 1d443ba..0686fab 100644
--- a/memhub/packages/contracts/src/index.ts
+++ b/memhub/packages/contracts/src/index.ts
@@ -636,6 +636,16 @@ export interface SdkRawRecord {
   memory_at: number | null;
   gmt_created: number | null;
   custom: Record<string, unknown>;
+  /** active, or shadow once pro extracted it. */
+  status?: string | null;
+  /** The turn's messages, parsed from the SDK's `[role]: text` lines. */
+  messages?: { role: string; content: string }[];
+  /** The one role of a single-message turn; null for a mixed turn. */
+  role?: string | null;
+  /** `sha256:<hex>` of the stored content, computed by Core. */
+  content_hash?: string;
+  /** ISO time the SDK stored the raw. */
+  created?: string | null;
 }
 
 export interface SdkRawPage {
@@ -643,6 +653,37 @@ export interface SdkRawPage {
   total: number;
   limit: number;
   offset: number;
+  /** A time range was applied to this page in Core (the SDK list has none). */
+  time_filtered?: boolean;
+}
+
+/** `GET /api/v2/memory-library/layers`: memories per SDK layer. */
+export interface SdkLayerCounts {
+  layers: Record<string, number>;
+  total: number;
+  statuses: string[] | null;
+}
+
+/** `GET /api/v2/user-profile/versions`: the L0 basic-info version chains. */
+export interface SdkProfileVersions {
+  user_id: string;
+  request_id: string;
+  elapsed_ms: number;
+  chains: {
+    memory_id: string;
+    content: string;
+    status: string;
+    memory_at: number | null;
+    gmt_created: number | null;
+    basic_info: Record<string, unknown>;
+    versions: {
+      memory_id: string;
+      content: string;
+      memory_at: number | string | null;
+      gmt_created: number | null;
+      current: boolean;
+    }[];
+  }[];
 }
 
 export interface FileImportReceipt {