feat: add MCP creator screenshot metrics recognition

app/admin-app.tsx

@@ -494,6 +494,9 @@ export default function Home({ currentUser }: { currentUser: AuthUser }) {
   const [activeNav, setActiveNav] = useState<NavKey>("overview");
   const [loading, setLoading] = useState(true);
   const [working, setWorking] = useState(false);
+  const [collectingDistributionIds, setCollectingDistributionIds] = useState<Set<string>>(
+    new Set(),
+  );
   const [error, setError] = useState("");
   const [toast, setToast] = useState("");
   const [menuOpen, setMenuOpen] = useState(false);
@@ -762,10 +765,23 @@ export default function Home({ currentUser }: { currentUser: AuthUser }) {
   };
 
   const collectMetrics = async (distribution: Distribution) => {
-    await runAction(
+    setCollectingDistributionIds((current) => {
-      { action: "collect_now", distributionId: distribution.id },
+      const next = new Set(current);
-      "公开数据已更新",
+      next.add(distribution.id);
-    );
+      return next;
+    });
+    try {
+      await runAction(
+        { action: "collect_now", distributionId: distribution.id },
+        "公开数据已更新",
+      );
+    } finally {
+      setCollectingDistributionIds((current) => {
+        const next = new Set(current);
+        next.delete(distribution.id);
+        return next;
+      });
+    }
   };
 
   const updateDistributionPublishUrl = async (
@@ -1123,6 +1139,7 @@ export default function Home({ currentUser }: { currentUser: AuthUser }) {
                   tasks={data.tasks}
                   distributions={data.distributions}
                   working={working}
+                  collectingDistributionIds={collectingDistributionIds}
                   canUpdatePublishUrl={isManager}
                   onCollect={collectMetrics}
                   onUpdatePublishUrl={updateDistributionPublishUrl}
@@ -2815,6 +2832,7 @@ function RecoveryPage({
   tasks,
   distributions,
   working,
+  collectingDistributionIds,
   canUpdatePublishUrl,
   onCollect,
   onUpdatePublishUrl,
@@ -2829,6 +2847,7 @@ function RecoveryPage({
   tasks: Task[];
   distributions: Distribution[];
   working: boolean;
+  collectingDistributionIds: ReadonlySet<string>;
   canUpdatePublishUrl: boolean;
   onCollect: (distribution: Distribution) => void;
   onUpdatePublishUrl: (distribution: Distribution) => void;
@@ -3116,7 +3135,9 @@ function RecoveryPage({
                           </span>
                         ) : item.screenshot_key ? (
                           <span className="creator-ocr-failed">
-                            待KOC填写数据
+                            {item.ocr_status === "processing"
+                              ? "正在识别数据"
+                              : "识别失败，请手动填写"}
                           </span>
                         ) : null}
                         {item.screenshot_key &&
@@ -3139,7 +3160,12 @@ function RecoveryPage({
                         ) : (
                           <button
                             className="collect-button"
-                            disabled={working || !noteUrl}
+                            disabled={
+                              !noteUrl ||
+                              (working &&
+                                (collectingDistributionIds.size === 0 ||
+                                  collectingDistributionIds.has(item.id)))
+                            }
                             onClick={() => onCollect(item)}
                           >
                             {noteUrl ? "立即采集" : "待填链接"}

app/api/creator-screenshot/route.ts

@@ -4,9 +4,10 @@ import {
   getUploadBucket,
 } from "../../../lib/mvp-db";
 import { adminForbidden, isAdminRequest } from "../../../lib/admin-auth";
+import { verifyCreatorScreenshotAccessToken } from "../../../lib/creator-screenshot-access";
 
 export async function GET(request: Request) {
-  if (!(await isAdminRequest(request))) return adminForbidden();
+  const isAdmin = await isAdminRequest(request);
   try {
     await ensureSchema();
     const distributionId = new URL(request.url).searchParams
@@ -22,6 +23,18 @@ export async function GET(request: Request) {
       )
       .bind(distributionId)
       .first<{ screenshot_key: string | null }>();
+    const mcpToken = new URL(request.url).searchParams.get("mcp_token") || "";
+    if (
+      !isAdmin &&
+      (!row?.screenshot_key ||
+        !verifyCreatorScreenshotAccessToken(
+          distributionId,
+          row.screenshot_key,
+          mcpToken,
+        ))
+    ) {
+      return adminForbidden();
+    }
     if (
       !row?.screenshot_key ||
       !row.screenshot_key.startsWith("creator-center/")

app/api/partner-upload/route.ts

@@ -13,6 +13,13 @@ import {
   parseResultScreenshotKeys,
   serializeResultScreenshotKeys,
 } from "../../../lib/result-screenshots";
+import { creatorScreenshotMcpUrl } from "../../../lib/creator-screenshot-access";
+import {
+  extractCreatorMetricsFromMcp,
+  resolveCollectionMcpConfig,
+  type CollectionMcpBindings,
+} from "../../../lib/mcp-collection-client";
+import { getRuntimeEnv } from "../../../lib/runtime-env";
 
 async function readUpload(request: Request) {
   const contentType = request.headers.get("content-type") ?? "";
@@ -163,13 +170,47 @@ async function handlePost(request: Request) {
             screenshot_key = ?,
             ocr_status = CASE
               WHEN exposure IS NOT NULL AND views IS NOT NULL THEN ocr_status
-              ELSE 'uploaded'
+              ELSE 'processing'
             END,
             updated_at = CURRENT_TIMESTAMP
            WHERE id = ?`,
         )
         .bind(key, upload.distributionId)
         .run();
+      try {
+        const metrics = await extractCreatorMetricsFromMcp(
+          creatorScreenshotMcpUrl(request, upload.distributionId, key),
+          resolveCollectionMcpConfig(
+            getRuntimeEnv() as unknown as CollectionMcpBindings,
+          ),
+        );
+        await getRawDb()
+          .prepare(
+            `UPDATE distributions SET exposure = ?, views = ?,
+               ocr_status = 'success', updated_at = CURRENT_TIMESTAMP
+             WHERE id = ?`,
+          )
+          .bind(metrics.exposure, metrics.views, upload.distributionId)
+          .run();
+        return Response.json({
+          uploaded: true,
+          exposure: metrics.exposure,
+          views: metrics.views,
+          ocrStatus: "success",
+          kind: "creator-center",
+        });
+      } catch (error) {
+        console.error("[KOC LOOP] creator screenshot OCR failed", {
+          distributionId: upload.distributionId,
+          detail: error instanceof Error ? error.message : String(error),
+        });
+        await getRawDb()
+          .prepare(
+            `UPDATE distributions SET ocr_status = 'failed', updated_at = CURRENT_TIMESTAMP WHERE id = ?`,
+          )
+          .bind(upload.distributionId)
+          .run();
+      }
     } else {
       await getRawDb()
         .prepare(
@@ -189,6 +230,7 @@ async function handlePost(request: Request) {
         : isCreatorCenter
           ? "creator-center"
           : "publish",
+      ocrStatus: isCreatorCenter ? "failed" : undefined,
     });
   } catch (error) {
     return Response.json(

app/api/upload/route.ts

@@ -6,6 +6,13 @@ import {
   uid,
 } from "../../../lib/mvp-db";
 import { adminForbidden, isAdminRequest } from "../../../lib/admin-auth";
+import { creatorScreenshotMcpUrl } from "../../../lib/creator-screenshot-access";
+import {
+  extractCreatorMetricsFromMcp,
+  resolveCollectionMcpConfig,
+  type CollectionMcpBindings,
+} from "../../../lib/mcp-collection-client";
+import { getRuntimeEnv } from "../../../lib/runtime-env";
 
 export async function POST(request: Request) {
   if (!(await isAdminRequest(request))) return adminForbidden();
@@ -33,12 +40,37 @@ export async function POST(request: Request) {
           screenshot_key = ?,
           exposure = NULL,
           views = NULL,
-          ocr_status = 'failed',
+          ocr_status = 'processing',
           updated_at = CURRENT_TIMESTAMP
          WHERE id = ?`,
       )
       .bind(key, distributionId)
       .run();
+    try {
+      const metrics = await extractCreatorMetricsFromMcp(
+        creatorScreenshotMcpUrl(request, distributionId, key),
+        resolveCollectionMcpConfig(getRuntimeEnv() as unknown as CollectionMcpBindings),
+      );
+      await db
+        .prepare(
+          `UPDATE distributions SET exposure = ?, views = ?,
+             ocr_status = 'success', updated_at = CURRENT_TIMESTAMP
+           WHERE id = ?`,
+        )
+        .bind(metrics.exposure, metrics.views, distributionId)
+        .run();
+    } catch (error) {
+      console.error("[KOC LOOP] creator screenshot OCR failed", {
+        distributionId,
+        detail: error instanceof Error ? error.message : String(error),
+      });
+      await db
+        .prepare(
+          `UPDATE distributions SET ocr_status = 'failed', updated_at = CURRENT_TIMESTAMP WHERE id = ?`,
+        )
+        .bind(distributionId)
+        .run();
+    }
     return Response.json(await getDashboardData());
   } catch (error) {
     return Response.json(

koc-portal/app/page.tsx

@@ -954,7 +954,7 @@ export default function Home() {
     selectedItem: Assignment,
     file: File,
     kind: "publish" | "creator-center" | "task-result",
-  ) => {
+  ): Promise<{ exposure?: number | null; views?: number | null; ocrStatus?: string }> => {
     const compressed = await compressScreenshot(file);
     const headers: Record<string, string> = {
       "Content-Type": compressed.type || "image/jpeg",
@@ -973,7 +973,12 @@ export default function Home() {
       headers,
       body: compressed,
     });
-    const uploadResult = (await uploadResponse.json()) as { error?: string };
+    const uploadResult = (await uploadResponse.json()) as {
+      error?: string;
+      exposure?: number | null;
+      views?: number | null;
+      ocrStatus?: string;
+    };
     if (!uploadResponse.ok) {
       throw new Error(
         uploadResult.error ||
@@ -984,6 +989,7 @@ export default function Home() {
             : "发布截图上传失败"),
       );
     }
+    return uploadResult;
   };
 
   const submitNote = async (event: FormEvent) => {
@@ -1082,22 +1088,31 @@ export default function Home() {
       setToast("请选择创作者中心截图");
       return;
     }
-    if (
-      !/^\d{1,12}$/.test(creatorExposure) ||
-      !/^\d{1,12}$/.test(creatorViews)
-    ) {
-      setToast("请填写正确的曝光量和阅读量");
-      return;
-    }
     try {
       setCreatorWorking(true);
+      let exposureValue = creatorExposure;
+      let viewsValue = creatorViews;
       if (creatorScreenshot) {
         setCreatorStage("正在上传截图…");
-        await uploadEvidence(
+        const ocrResult = await uploadEvidence(
           selected,
           creatorScreenshot,
           "creator-center",
         );
+        if (typeof ocrResult.exposure === "number") {
+          exposureValue = String(ocrResult.exposure);
+          setCreatorExposure(exposureValue);
+        }
+        if (typeof ocrResult.views === "number") {
+          viewsValue = String(ocrResult.views);
+          setCreatorViews(viewsValue);
+        }
+        if (ocrResult.ocrStatus === "success") {
+          setCreatorStage("已识别截图数据，正在保存…");
+        }
+      }
+      if (!/^\d{1,12}$/.test(exposureValue) || !/^\d{1,12}$/.test(viewsValue)) {
+        throw new Error("未识别到完整数据，请填写曝光量和阅读量");
       }
       setCreatorStage("正在保存数据…");
       const response = await fetch(partnerApi("/api/partner"), {
@@ -1109,8 +1124,8 @@ export default function Home() {
           claimToken,
           delegationToken,
           distributionId: selected.id,
-          exposure: creatorExposure,
+          exposure: exposureValue,
-          views: creatorViews,
+          views: viewsValue,
         }),
       });
       const result = (await response.json()) as { error?: string };
@@ -1593,7 +1608,7 @@ export default function Home() {
                       <div className="evidence-empty-state">
                         <b>＋</b>
                         <strong>点击选择第7天创作者中心截图</strong>
-                        <small>截图仅用于运营核对，不再自动OCR</small>
+                        <small>上传后自动识别曝光量和阅读量，识别失败可手动填写</small>
                       </div>
                     )}
                     <label className="evidence-upload-action">

koc-portal/tests/rendered-html.test.mjs

@@ -92,7 +92,7 @@ test("keeps claiming minimal and backfill one-to-one", async () => {
   assert.match(page, /submit_creator_metrics/);
   assert.match(page, /creatorExposure/);
   assert.match(page, /creatorViews/);
-  assert.match(page, /截图仅用于运营核对，不再自动OCR/);
+  assert.match(page, /上传后自动识别曝光量和阅读量，识别失败可手动填写/);
   assert.match(page, /evidenceImageUrl/);
   assert.match(page, /params\.set\("v", evidenceKey\)/);
   assert.match(page, /evidenceImageUrl\(selected, "publish"\)/);
@@ -140,7 +140,7 @@ test("renders screenshot-only tasks with anonymous delegation and multi-image up
   assert.match(styles, /\.evidence-preview-button/);
 });
 
-test("shows D1 timestamps in Beijing time", () => {
+test("shows D1 and MySQL UTC timestamps in Beijing time", () => {
   const stored = "2026-07-29 05:36:00";
   assert.equal(parseStoredDate(stored).toISOString(), "2026-07-29T05:36:00.000Z");
   assert.match(formatShanghaiDate(stored, true), /07\/29.*13:36/);

lib/collection-service.ts

@@ -21,6 +21,33 @@ type ScheduledTask = {
 
 type CollectionSource = "automatic" | "catchup" | "manual";
 
+function userFacingCollectionError(error: unknown) {
+  const message = error instanceof Error ? error.message : String(error ?? "");
+  const normalized = message.toLowerCase();
+  if (
+    /cookie|登录|登陆|授权|access.?token|未登录|未授权|401|403/.test(
+      normalized,
+    )
+  ) {
+    return "采集 Cookie 已过期或无权限";
+  }
+  if (
+    /链接|link|url|404|not found|不存在|删除|失效|无法识别.*笔记/.test(
+      normalized,
+    )
+  ) {
+    return "笔记链接失效或不可访问";
+  }
+  if (
+    /超时|timeout|fetch failed|network|502|503|暂时不可用|响应空/.test(
+      normalized,
+    )
+  ) {
+    return "采集服务暂时不可用";
+  }
+  return "笔记链接失效或采集 Cookie 过期";
+}
+
 function utcDay(value: string) {
   const match = value.match(/^(\d{4})-(\d{2})-(\d{2})$/);
   if (!match) return null;
@@ -311,8 +338,9 @@ export async function collectDistributionMetrics(
     ]);
     return { skipped: false, likes, comments, collects, shares };
   } catch (error) {
-    const message =
+    const detail = error instanceof Error ? error.message : String(error);
-      error instanceof Error ? error.message : "公开数据采集失败";
+    const message = userFacingCollectionError(error);
+    console.error("[KOC LOOP] collection failed", { detail, distributionId });
     await db.batch([
       db
         .prepare(

lib/creator-screenshot-access.ts

@@ -0,0 +1,60 @@
+import { createHmac, timingSafeEqual } from "node:crypto";
+import { getRuntimeEnv } from "./runtime-env";
+
+function accessSecret() {
+  const env = getRuntimeEnv();
+  return (
+    env.KOC_MCP_API_KEY ||
+    env.KOC_LOOP_MCP_API_KEY ||
+    env.ADMIN_INTERNAL_TOKEN ||
+    env.AI_TOOL_CENTER_MCP_KEY ||
+    ""
+  ).trim();
+}
+
+function signature(distributionId: string, screenshotKey: string, expiresAt: number) {
+  return createHmac("sha256", accessSecret())
+    .update(`${distributionId}:${screenshotKey}:${expiresAt}`)
+    .digest("hex");
+}
+
+export function creatorScreenshotAccessToken(
+  distributionId: string,
+  screenshotKey: string,
+  expiresAt = Math.floor(Date.now() / 1000) + 300,
+) {
+  const secret = accessSecret();
+  if (!secret) throw new Error("图片识别访问密钥未配置");
+  return `${expiresAt}.${signature(distributionId, screenshotKey, expiresAt)}`;
+}
+
+export function verifyCreatorScreenshotAccessToken(
+  distributionId: string,
+  screenshotKey: string,
+  token: string,
+) {
+  const [expiresText, received] = token.split(".");
+  const expiresAt = Number(expiresText);
+  if (!Number.isInteger(expiresAt) || expiresAt < Math.floor(Date.now() / 1000)) {
+    return false;
+  }
+  const expected = signature(distributionId, screenshotKey, expiresAt);
+  if (!received || received.length !== expected.length) return false;
+  return timingSafeEqual(Buffer.from(received), Buffer.from(expected));
+}
+
+export function creatorScreenshotMcpUrl(
+  request: Request,
+  distributionId: string,
+  screenshotKey: string,
+) {
+  const env = getRuntimeEnv();
+  const origin = (env.APP_ORIGIN || new URL(request.url).origin).replace(/\/$/, "");
+  const url = new URL(`${origin}/api/creator-screenshot`);
+  url.searchParams.set("distribution", distributionId);
+  url.searchParams.set(
+    "mcp_token",
+    creatorScreenshotAccessToken(distributionId, screenshotKey),
+  );
+  return url.toString();
+}

lib/mcp-collection-client.ts

@@ -254,6 +254,7 @@ async function invokeMcpTool(
   timeoutMs: number,
   name: string,
   args: Record<string, unknown>,
+  allowText = false,
 ): Promise<ToolResult> {
   const result = await postMcp(
     fetchImpl,
@@ -277,6 +278,12 @@ async function invokeMcpTool(
   try {
     payload = JSON.parse(text);
   } catch {
+    if (allowText) {
+      return {
+        isError: result.envelope?.result?.isError === true,
+        payload: { text },
+      };
+    }
     if (result.envelope?.result?.isError === true) {
       return {
         isError: true,
@@ -305,6 +312,7 @@ async function callMcpTool(
   timeoutMs: number,
   name: string,
   args: Record<string, unknown>,
+  allowText = false,
 ): Promise<ToolResult> {
   const nested = await invokeMcpTool(
     fetchImpl,
@@ -313,6 +321,7 @@ async function callMcpTool(
     timeoutMs,
     name,
     { request: args },
+    allowText,
   );
   if (!isToolArgumentShapeError(nested)) return nested;
   return invokeMcpTool(
@@ -322,10 +331,86 @@ async function callMcpTool(
     timeoutMs,
     name,
     args,
+    allowText,
   );
 }
 
-function metricsFromToolResult(result: ToolResult): XhsPublicMetrics {
+function imageToolText(value: unknown) {
+  if (typeof value === "string") return value;
+  const root = asRecord(value);
+  if (!root) return "";
+  return [root.text, root.description, root.content, root.message, root.error]
+    .flatMap((item) => (Array.isArray(item) ? item : [item]))
+    .map((item) => {
+      if (typeof item === "string") return item;
+      const record = asRecord(item);
+      return String(record?.text ?? record?.description ?? "");
+    })
+    .filter(Boolean)
+    .join("\n");
+}
+
+function metricFromImageText(text: string, labels: string[], label: string) {
+  const pattern = labels.join("|");
+  const match = text.match(
+    new RegExp(`(?:${pattern})\\s*[：:]?\\s*([\\d,.]+(?:万|w|千|k)?)`, "i"),
+  );
+  if (!match) return null;
+  try {
+    return metricValue(match[1], label);
+  } catch {
+    return null;
+  }
+}
+
+function creatorMetricsFromImageResult(result: ToolResult) {
+  if (result.isError) {
+    const detail = imageToolText(result.payload);
+    throw new Error(
+      `图片识别 MCP 调用失败${detail ? `：${safeMessage(detail, "")}` : ""}`,
+    );
+  }
+  const text = imageToolText(result.payload);
+  const exposure = metricFromImageText(
+    text,
+    ["曝光量", "曝光", "impressions", "exposure"],
+    "曝光量",
+  );
+  const views = metricFromImageText(
+    text,
+    ["阅读量", "阅读", "views", "view_count", "view count"],
+    "阅读量",
+  );
+  if (exposure === null || views === null) {
+    throw new Error("图片识别未找到曝光量和阅读量");
+  }
+  return { exposure, views };
+}
+
+export async function extractCreatorMetricsFromMcp(
+  imageUrl: string,
+  config: CollectionMcpConfig,
+  fetchImpl: typeof fetch = fetch,
+) {
+  const endpoint = buildMcpUrl(config);
+  const timeoutMs = Math.max(5_000, config.timeoutMs ?? 30_000);
+  const sessionId = await createMcpSession(fetchImpl, endpoint, timeoutMs);
+  const result = await callMcpTool(
+    fetchImpl,
+    endpoint,
+    sessionId,
+    timeoutMs,
+    "analyze_image",
+    { image_url: imageUrl },
+    true,
+  );
+  return creatorMetricsFromImageResult(result);
+}
+
+function metricsFromToolResult(
+  result: ToolResult,
+  toolName = "fetch_content_detail",
+): XhsPublicMetrics {
   const root = asRecord(result.payload);
   const response = asRecord(root?.response) ?? root;
   const data = asRecord(response?.data) ?? asRecord(root?.data);
@@ -337,14 +422,18 @@ function metricsFromToolResult(result: ToolResult): XhsPublicMetrics {
     success === false ||
     (Number.isFinite(code) && code >= 400)
   ) {
+    const providerCode = Number(response?.code);
+    const codeLabel = Number.isFinite(providerCode)
+      ? `（code ${providerCode}）`
+      : "";
     throw new Error(
-      safeMessage(
+      `MCP工具 ${toolName} 返回失败${codeLabel}：${safeMessage(
         response?.msg ?? response?.message ?? root?.message,
         "公开数据采集失败",
-      ),
+      )}`,
     );
   }
-  if (!data) throw new Error("采集结果缺少互动数据");
+  if (!data) throw new Error(`MCP工具 ${toolName} 未返回互动数据`);
 
   const count = (value: unknown, label: string) =>
     value === null || value === undefined || value === ""
@@ -1156,7 +1245,7 @@ async function collectInSession(
       auto_cookie: true,
     },
   );
-  return metricsFromToolResult(primary);
+  return metricsFromToolResult(primary, "fetch_content_detail");
 }
 
 export function resolveCollectionMcpConfig(

tests/date-utils.test.mjs

@@ -6,7 +6,7 @@ import {
   parseStoredDate,
 } from "../lib/date-utils.ts";
 
-test("treats D1 CURRENT_TIMESTAMP values as UTC and displays Beijing time", () => {
+test("treats D1 and MySQL UTC timestamps as UTC and displays Beijing time", () => {
   const stored = "2026-07-29 05:36:00";
   assert.equal(parseStoredDate(stored).toISOString(), "2026-07-29T05:36:00.000Z");
   assert.match(formatShanghaiDate(stored, true), /07\/29.*13:36/);

tests/mcp-collection-client.test.mjs

@@ -520,7 +520,7 @@ test("surfaces current detail tool failures without calling removed tools", asyn
       },
       fetchImpl,
     ),
-    /获取内容详情失败/,
+    /MCP工具 fetch_content_detail 返回失败（code 400）：获取内容详情失败/,
   );
   assert.equal(calls.length, 3);
   assert.equal(calls[2].body.params.name, "fetch_content_detail");

tests/rendered-html.test.mjs

@@ -190,8 +190,9 @@ test("issues external task links and supports one-to-one note submissions", asyn
   assert.doesNotMatch(partnerUtils, /user\/profile\/\$\{platformUid\}/);
   assert.match(uploadRoute, /publish-evidence/);
   assert.match(uploadRoute, /creator-center/);
-  assert.match(uploadRoute, /ELSE 'uploaded'/);
+  assert.match(uploadRoute, /ELSE 'processing'/);
-  assert.doesNotMatch(uploadRoute, /ocrMetric/);
+  assert.match(uploadRoute, /extractCreatorMetricsFromMcp/);
+  assert.match(uploadRoute, /creatorScreenshotMcpUrl/);
   assert.match(uploadRoute, /x-koc-upload-kind/);
   assert.match(uploadRoute, /x-koc-distribution/);
   assert.match(uploadRoute, /request\.arrayBuffer/);
@@ -223,7 +224,7 @@ test("issues external task links and supports one-to-one note submissions", asyn
   assert.match(adminApp, /全部内容类型/);
   assert.match(adminApp, /全部平台/);
   assert.match(adminApp, /task-scope-subline/);
-  assert.match(adminApp, /待KOC填写数据/);
+  assert.match(adminApp, /识别失败，请手动填写/);
   assert.match(adminApp, /AdminImageLightbox/);
   assert.match(adminApp, /CreatorScreenshotPreview/);
   assert.match(adminApp, /admin-image-lightbox/);