diff --git a/src/cli.ts b/src/cli.ts
index 92ee5fd..9cc6f8d 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -1,7 +1,7 @@
 import { Command } from 'commander';
 import chalk from 'chalk';
 import { executeCommand } from './engine.js';
-import { type CliCommand, fullName, getRegistry, strategyLabel } from './registry.js';
+import { Strategy, type CliCommand, fullName, getRegistry, strategyLabel } from './registry.js';
 import { render as renderOutput } from './output.js';
 import { BrowserBridge, CDPBridge } from './browser/index.js';
 import { browserSession, DEFAULT_BROWSER_COMMAND_TIMEOUT, runWithTimeout } from './runtime.js';
@@ -160,13 +160,18 @@ export function runCli(BUILTIN_CLIS: string, USER_CLIS: string): void {
         if (cmd.browser) {
           const BrowserFactory = process.env.OPENCLI_CDP_ENDPOINT ? CDPBridge : BrowserBridge;
           result = await browserSession(BrowserFactory as any, async (page) => {
+            // Cookie/header strategies require same-origin context for credentialed fetch.
+            if ((cmd.strategy === Strategy.COOKIE || cmd.strategy === Strategy.HEADER) && cmd.domain) {
+              try { await page.goto(`https://${cmd.domain}`); await page.wait(2); } catch {}
+            }
             return runWithTimeout(executeCommand(cmd, page, kwargs, actionOpts.verbose), { timeout: cmd.timeoutSeconds ?? DEFAULT_BROWSER_COMMAND_TIMEOUT, label: fullName(cmd) });
           });
         } else { result = await executeCommand(cmd, null, kwargs, actionOpts.verbose); }
         if (actionOpts.verbose && (!result || (Array.isArray(result) && result.length === 0))) {
           console.error(chalk.yellow(`[Verbose] Warning: Command returned an empty result. If the website structural API changed or requires authentication, check the network or update the adapter.`));
         }
-        renderOutput(result, { fmt: actionOpts.format, columns: cmd.columns, title: `${cmd.site}/${cmd.name}`, elapsed: (Date.now() - startTime) / 1000, source: fullName(cmd) });
+        const resolved = getRegistry().get(fullName(cmd)) ?? cmd;
+        renderOutput(result, { fmt: actionOpts.format, columns: resolved.columns, title: `${resolved.site}/${resolved.name}`, elapsed: (Date.now() - startTime) / 1000, source: fullName(resolved), footerExtra: resolved.footerExtra?.(kwargs) });
       } catch (err: any) { 
         if (err instanceof CliError) {
           console.error(chalk.red(`Error [${err.code}]: ${err.message}`));
diff --git a/src/clis/hf/top.ts b/src/clis/hf/top.ts
new file mode 100644
index 0000000..b912b41
--- /dev/null
+++ b/src/clis/hf/top.ts
@@ -0,0 +1,141 @@
+import { cli, Strategy } from '../../registry.js';
+import { CliError } from '../../errors.js';
+
+interface PaperAuthor {
+  name: string;
+}
+
+interface DailyPaper {
+  paper: {
+    id: string;
+    upvotes: number;
+    authors: PaperAuthor[];
+  };
+  title: string;
+  numComments: number;
+}
+
+interface PeriodPaper {
+  id: string;
+  title: string;
+  upvotes: number;
+  publishedAt: string;
+  authors: PaperAuthor[];
+}
+
+function truncate(str: string, max = 60): string {
+  return str.length > max ? str.slice(0, max - 3) + '...' : str;
+}
+
+function formatAuthors(authors: PaperAuthor[], max = 3): string {
+  const names = authors.map((a) => a.name);
+  if (names.length <= max) return names.join(', ');
+  return names.slice(0, max).join(', ') + ' et al.';
+}
+
+const MONTH_ABBR = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
+
+function getMonthRange(): string {
+  const now = new Date();
+  return `${MONTH_ABBR[now.getUTCMonth()]} ${now.getUTCFullYear()}`;
+}
+
+function getWeekRange(): string {
+  const now = new Date();
+  const day = now.getUTCDay(); // 0=Sun, 6=Sat
+  const daysToSat = day === 6 ? 0 : 6 - day;
+  const end = new Date(now);
+  end.setUTCDate(now.getUTCDate() + daysToSat);
+  const start = new Date(end);
+  start.setUTCDate(end.getUTCDate() - 6);
+
+  const sm = MONTH_ABBR[start.getUTCMonth()];
+  const em = MONTH_ABBR[end.getUTCMonth()];
+  const sd = start.getUTCDate();
+  const ed = end.getUTCDate();
+  return sm === em ? `${sm} ${sd}-${ed}` : `${sm} ${sd}-${em} ${ed}`;
+}
+
+cli({
+  site: 'hf',
+  name: 'top',
+  description: 'Top upvoted Hugging Face papers',
+  domain: 'huggingface.co',
+  strategy: Strategy.PUBLIC,
+  browser: false,
+  args: [
+    { name: 'limit', type: 'int', default: 20, help: 'Number of papers' },
+    { name: 'all', type: 'bool', default: false, help: 'Return all papers (ignore limit)' },
+    { name: 'date', type: 'str', required: false, help: 'Date (YYYY-MM-DD), defaults to most recent' },
+    { name: 'period', type: 'str', default: 'daily', choices: ['daily', 'weekly', 'monthly'], help: 'Time period: daily, weekly, or monthly' },
+  ],
+  footerExtra: (kwargs) => {
+    if (kwargs._footerDate) return kwargs._footerDate;
+    if (kwargs.period === 'monthly') return getMonthRange();
+    if (kwargs.period === 'weekly') return getWeekRange();
+    return kwargs.date ?? new Date().toISOString().slice(0, 10);
+  },
+  func: async (_page, kwargs) => {
+    const period = String(kwargs.period ?? 'daily');
+    const all = Boolean(kwargs.all);
+    const endpoint = process.env.HF_ENDPOINT?.replace(/\/+$/, '') || 'https://huggingface.co';
+
+    if (period === 'weekly' || period === 'monthly') {
+      if (kwargs.date) {
+        throw new CliError('INVALID_ARG', `--date is not supported for ${period} period`, `Omit --date when using --period ${period}`);
+      }
+      const url = `${endpoint}/api/papers?period=${period}`;
+      const res = await fetch(url);
+      if (!res.ok) throw new CliError('FETCH_ERROR', `HF API error: ${res.status} ${res.statusText}`, 'Check HF_ENDPOINT or try again later');
+      const body = await res.json();
+      if (!Array.isArray(body)) throw new CliError('FETCH_ERROR', 'Unexpected HF API response', 'Check endpoint');
+      const data: PeriodPaper[] = body;
+      const dates = data.map((d) => d.publishedAt).filter(Boolean).sort();
+      if (dates.length > 0) {
+        if (period === 'monthly') {
+          const d = new Date(dates[0]);
+          kwargs._footerDate = `${MONTH_ABBR[d.getUTCMonth()]} ${d.getUTCFullYear()}`;
+        } else {
+          const start = new Date(dates[0]);
+          const end = new Date(dates[dates.length - 1]);
+          const sm = MONTH_ABBR[start.getUTCMonth()];
+          const em = MONTH_ABBR[end.getUTCMonth()];
+          const sd = start.getUTCDate();
+          const ed = end.getUTCDate();
+          kwargs._footerDate = sm === em ? `${sm} ${sd}-${ed}` : `${sm} ${sd}-${em} ${ed}`;
+        }
+      }
+      const sorted = [...data].sort((a, b) => (b.upvotes ?? 0) - (a.upvotes ?? 0));
+      const items = all ? sorted : sorted.slice(0, Number(kwargs.limit));
+      return items.map((item, i) => ({
+        rank: i + 1,
+        id: item.id ?? '',
+        title: truncate(item.title ?? ''),
+        upvotes: item.upvotes ?? 0,
+        authors: formatAuthors(item.authors ?? []),
+      }));
+    }
+
+    // daily
+    if (kwargs.date && !/^\d{4}-\d{2}-\d{2}$/.test(String(kwargs.date))) {
+      throw new CliError('INVALID_ARG', `Invalid date format: ${kwargs.date}`, 'Use YYYY-MM-DD');
+    }
+    const url = kwargs.date
+      ? `${endpoint}/api/daily_papers?date=${kwargs.date}`
+      : `${endpoint}/api/daily_papers`;
+    const res = await fetch(url);
+    if (!res.ok) throw new CliError('FETCH_ERROR', `HF API error: ${res.status} ${res.statusText}`, 'Check HF_ENDPOINT or try again later');
+    const body = await res.json();
+    if (!Array.isArray(body)) throw new CliError('FETCH_ERROR', 'Unexpected HF API response', 'Check date format or endpoint');
+    const data: DailyPaper[] = body;
+    const sorted = [...data].sort((a, b) => (b.paper?.upvotes ?? 0) - (a.paper?.upvotes ?? 0));
+    const items = all ? sorted : sorted.slice(0, Number(kwargs.limit));
+    return items.map((item, i) => ({
+      rank: i + 1,
+      id: item.paper?.id ?? '',
+      title: truncate(item.title ?? ''),
+      upvotes: item.paper?.upvotes ?? 0,
+      authors: formatAuthors(item.paper?.authors ?? []),
+    }));
+  },
+});
diff --git a/src/output.ts b/src/output.ts
index d2cea78..2daf74c 100644
--- a/src/output.ts
+++ b/src/output.ts
@@ -12,6 +12,7 @@ export interface RenderOptions {
   title?: string;
   elapsed?: number;
   source?: string;
+  footerExtra?: string;
 }
 
 export function render(data: unknown, opts: RenderOptions = {}): void {
@@ -56,6 +57,7 @@ function renderTable(data: unknown, opts: RenderOptions): void {
   footer.push(`${rows.length} items`);
   if (opts.elapsed) footer.push(`${opts.elapsed.toFixed(1)}s`);
   if (opts.source) footer.push(opts.source);
+  if (opts.footerExtra) footer.push(opts.footerExtra);
   console.log(chalk.dim(footer.join(' · ')));
 }
 
diff --git a/src/registry.ts b/src/registry.ts
index 894119d..ed50778 100644
--- a/src/registry.ts
+++ b/src/registry.ts
@@ -35,6 +35,7 @@ export interface CliCommand {
   pipeline?: Record<string, unknown>[];
   timeoutSeconds?: number;
   source?: string;
+  footerExtra?: (kwargs: Record<string, any>) => string | undefined;
 }
 
 /** Internal extension for lazy-loaded TS modules (not exposed in public API) */
@@ -63,6 +64,7 @@ export function cli(opts: CliOptions): CliCommand {
     func: opts.func,
     pipeline: opts.pipeline,
     timeoutSeconds: opts.timeoutSeconds,
+    footerExtra: opts.footerExtra,
   };
 
   const key = fullName(cmd);