diff --git a/frontend/context-poller.js b/frontend/context-poller.js
new file mode 100644
index 0000000..4159a70
--- /dev/null
+++ b/frontend/context-poller.js
@@ -0,0 +1,73 @@
+function createContextPoller({
+  fetchContext,
+  onSnapshot,
+  onError,
+  isHidden = () => false,
+  setTimer = setTimeout,
+  clearTimer = clearTimeout,
+  intervalMs = 8000,
+}) {
+  let inFlight = null;
+  let timer = null;
+  let stopped = false;
+
+  function cancelTimer() {
+    if (timer !== null) clearTimer(timer);
+    timer = null;
+  }
+
+  function schedule() {
+    cancelTimer();
+    if (stopped || isHidden()) return;
+    timer = setTimer(() => {
+      timer = null;
+      refresh();
+    }, intervalMs);
+  }
+
+  function refresh() {
+    if (stopped || isHidden()) return Promise.resolve(null);
+    if (inFlight) return inFlight;
+
+    let request;
+    try {
+      request = fetchContext();
+    } catch (error) {
+      request = Promise.reject(error);
+    }
+    inFlight = Promise.resolve(request)
+      .then((snapshot) => {
+        onSnapshot(snapshot);
+        return snapshot;
+      })
+      .catch((error) => {
+        onError(error);
+        return null;
+      })
+      .finally(() => {
+        inFlight = null;
+        schedule();
+      });
+    return inFlight;
+  }
+
+  function setVisible(visible) {
+    cancelTimer();
+    if (!visible) return Promise.resolve(null);
+    return refresh();
+  }
+
+  return {
+    start: refresh,
+    refresh,
+    setVisible,
+    stop() {
+      stopped = true;
+      cancelTimer();
+    },
+  };
+}
+
+if (typeof module !== 'undefined' && module.exports) {
+  module.exports = createContextPoller;
+}
diff --git a/frontend/index.html b/frontend/index.html
index 905a7bd..0dad9a2 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -56,7 +56,7 @@ textarea { resize: vertical; min-height: 120px; }
 .event:last-child { border-bottom: 0; }
 .my-work { grid-column: 1 / -1; }
 .my-work-header { display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; }
-.work-filters { display:flex; gap:8px; }
+.work-filters { display:flex; gap:8px; flex-wrap:wrap; }
 .work-filter { min-height: 44px; }
 .work-filter[aria-pressed="true"] { border-color:var(--accent); background:#1d4f7a; }
 .my-work-list { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:10px; }
@@ -69,7 +69,7 @@ textarea { resize: vertical; min-height: 120px; }
   .my-work { margin:0; }
   .my-work-list { grid-template-columns:1fr; }
   .work-filters { width:100%; }
-  .work-filter { flex:1; }
+  .work-filter { flex:1 1 calc(50% - 8px); }
 }
 .obi { width:14px; height:14px; background: url('data:image/svg+xml;utf8,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 24 24%22><rect width=%2224%22 height=%2224%22 rx=%226%22 fill=%22%230b1526%22/><circle cx=%2212%22 cy=%2212%22 r=%226%22 fill=%22%2360a5fa%22/></svg>') center/contain no-repeat; display:inline-block; }
 .footer { padding: 12px; text-align: center; color:#4e6b8a; font-size:12px; }
@@ -96,10 +96,10 @@ textarea { resize: vertical; min-height: 120px; }
         <div class="small" id="my-work-status" aria-live="polite">Loading assigned work…</div>
       </div>
       <div class="work-filters" aria-label="Filter My Work">
-        <button class="work-filter" data-work-filter="all" aria-pressed="true">All</button>
-        <button class="work-filter" data-work-filter="issue" aria-pressed="false">Issues</button>
-        <button class="work-filter" data-work-filter="pull" aria-pressed="false">PRs</button>
-        <button class="work-filter" data-work-filter="review" aria-pressed="false">Reviews</button>
+        <button class="work-filter" data-work-filter="all" aria-pressed="true">All <span data-work-count="all">0</span></button>
+        <button class="work-filter" data-work-filter="issue" aria-pressed="false">Issues <span data-work-count="issue">0</span></button>
+        <button class="work-filter" data-work-filter="pull" aria-pressed="false">PRs <span data-work-count="pull">0</span></button>
+        <button class="work-filter" data-work-filter="review" aria-pressed="false">Reviews <span data-work-count="review">0</span></button>
       </div>
     </div>
     <div class="my-work-list" id="my-work-list"></div>
@@ -195,6 +195,7 @@ textarea { resize: vertical; min-height: 120px; }
 <script src="static/commands.js"></script>
 <script src="static/widgets.js"></script>
 <script src="static/my-work.js"></script>
+<script src="static/context-poller.js"></script>
 <script>
 (function(){
   const qs = (s, el=document) => el.querySelector(s);
@@ -221,56 +222,76 @@ textarea { resize: vertical; min-height: 120px; }
     });
   });
   let liveMode = true;
+  const WORK_FILTER_KEY = 'stackchain.my-work-filter.v1';
   let selectedWorkFilter = 'all';
+  try {
+    const savedFilter = sessionStorage.getItem(WORK_FILTER_KEY);
+    if (['all', 'issue', 'pull', 'review'].includes(savedFilter)) selectedWorkFilter = savedFilter;
+  } catch (e) {
+    console.warn('Could not restore My Work filter', e);
+  }
   let lastMyWork = [];
+  let hasContextSnapshot = false;
 
   function setStatus(msg) { qs('#status').textContent = msg || 'Live'; }
   function setClock() { qs('#clock').textContent = fmt(new Date()); }
   setClock(); setInterval(setClock, 1000);
 
-  async function load() {
-    setStatus('Loading…');
-    try {
-      const res = await fetch('api/v1/context', { headers: { Accept: 'application/json' } });
-      if (!res.ok) throw new Error('HTTP ' + res.status);
-      const data = await res.json();
-      liveMode = true;
-      if (data.error && lastMyWork.length) markMyWorkStale();
-      else paintMyWork(data);
-      qs('#context').innerHTML = '<div class="kv"><div class="label">User</div><div class="value">' + escapeHtml(data.user?.full_name || data.user?.login || '—') + '</div>' +
-        '<div class="label">Repos</div><div class="value">' + (data.repos?.length || 0) + '</div>' +
-        '<div class="label">Issues</div><div class="value">' + (data.issues?.length || 0) + '</div>' +
-        '<div class="label">PRs</div><div class="value">' + (data.pull_requests?.length || 0) + '</div></div>';
-      qs('#view-hint').textContent = 'Active view: ' + (data.view || 'dashboard');
+  async function fetchContextSnapshot() {
+    const res = await fetch('api/v1/context', { headers: { Accept: 'application/json' } });
+    if (!res.ok) throw new Error('HTTP ' + res.status);
+    return res.json();
+  }
 
-      const issuesBox = qs('#issues-content');
-      const openIssues = (data.issues || []).filter(i => i.state === 'open').slice(0, 12);
-      issuesBox.innerHTML = (openIssues.length ? openIssues.map(i => '<div style="margin:6px 0;"><a href="' + escAttr(i.url) + '" target="_blank">#' + i.number + ' ' + escapeHtml(i.title) + '</a>' +
-        '<div class="muted">' + (i.labels || []).map(l => '<span class="pill">' + escapeHtml(String(l)) + '</span>').join(' ') + '</div></div>').join('') : '<div class="muted">No open issues.</div>');
+  function renderContextSnapshot(data) {
+    liveMode = true;
+    hasContextSnapshot = true;
+    if (data.error && lastMyWork.length) markMyWorkStale();
+    else paintMyWork(data);
+    qs('#context').innerHTML = '<div class="kv"><div class="label">User</div><div class="value">' + escapeHtml(data.user?.full_name || data.user?.login || '—') + '</div>' +
+      '<div class="label">Repos</div><div class="value">' + (data.repos?.length || 0) + '</div>' +
+      '<div class="label">Issues</div><div class="value">' + (data.issues?.length || 0) + '</div>' +
+      '<div class="label">PRs</div><div class="value">' + (data.pull_requests?.length || 0) + '</div></div>';
+    qs('#view-hint').textContent = 'Active view: ' + (data.view || 'dashboard');
 
-      const prsBox = qs('#prs-content');
-      const openPrs = (data.pull_requests || []).slice(0, 12);
-      prsBox.innerHTML = (openPrs.length ? openPrs.map(p => '<div style="margin:6px 0;"><a href="' + escAttr(p.url) + '" target="_blank">#' + p.number + ' ' + escapeHtml(p.title) + '</a>' +
-        '<div class="muted">' + escapeHtml(p.state) + ' by ' + escapeHtml(String(p.user || '')) + '</div></div>').join('') : '<div class="muted">No PRs.</div>');
+    const issuesBox = qs('#issues-content');
+    const openIssues = (data.issues || []).filter(i => i.state === 'open').slice(0, 12);
+    issuesBox.innerHTML = (openIssues.length ? openIssues.map(i => '<div style="margin:6px 0;"><a href="' + escAttr(i.url) + '" target="_blank">#' + i.number + ' ' + escapeHtml(i.title) + '</a>' +
+      '<div class="muted">' + (i.labels || []).map(l => '<span class="pill">' + escapeHtml(String(l)) + '</span>').join(' ') + '</div></div>').join('') : '<div class="muted">No open issues.</div>');
 
-      paintDeltas(data.deltas || []);
-      setStatus(data.error ? 'Degraded · ' + data.error : 'Live · updated just now');
-      setClock();
-    } catch (e) {
-      console.error('context failed', e);
-      liveMode = false;
-      setStatus('Unavailable');
+    const prsBox = qs('#prs-content');
+    const openPrs = (data.pull_requests || []).slice(0, 12);
+    prsBox.innerHTML = (openPrs.length ? openPrs.map(p => '<div style="margin:6px 0;"><a href="' + escAttr(p.url) + '" target="_blank">#' + p.number + ' ' + escapeHtml(p.title) + '</a>' +
+      '<div class="muted">' + escapeHtml(p.state) + ' by ' + escapeHtml(String(p.user || '')) + '</div></div>').join('') : '<div class="muted">No PRs.</div>');
+
+    paintDeltas(data.deltas || []);
+    qs('#layout-hint').innerHTML = '<div class="kv"><div class="label">Active view</div><div class="value">' + escapeHtml(data.view || 'dashboard') + '</div><div class="label">Deltas</div><div class="value">' + (data.deltas||[]).length + '</div></div>';
+    renderRepoMix(qs('#repo-mix'), data);
+    setStatus(data.error ? 'Degraded · ' + data.error : 'Live · updated just now');
+    setClock();
+  }
+
+  function handleContextError(e) {
+    console.error('context failed', e);
+    liveMode = false;
+    setStatus(hasContextSnapshot ? 'Update failed · showing last snapshot' : 'Unavailable');
+    if (!hasContextSnapshot) {
       qs('#context').innerHTML = '<div class="muted">Context unavailable.</div>';
       qs('#view-hint').textContent = 'Active view unavailable.';
       qs('#issues-content').innerHTML = '<div class="muted">Work items unavailable.</div>';
       qs('#prs-content').innerHTML = '<div class="muted">Work items unavailable.</div>';
       paintDeltas([]);
-      markMyWorkStale();
     }
+    markMyWorkStale();
   }
 
   function paintMyWork(data) {
     lastMyWork = buildMyWork(data);
+    const counts = countMyWork(lastMyWork);
+    Object.entries(counts).forEach(([filter, count]) => {
+      const element = qs('[data-work-count="' + filter + '"]');
+      if (element) element.textContent = count;
+    });
     qs('#my-work').removeAttribute('data-stale');
     qs('#my-work-status').textContent = lastMyWork.length ?
       summarizeMyWork(lastMyWork) : 'No assigned work or review requests.';
@@ -326,15 +347,6 @@ textarea { resize: vertical; min-height: 120px; }
     }
   }
 
-  async function tickWidgets() {
-    try {
-      const res = await fetch('api/v1/context', { headers: { Accept: 'application/json' } });
-      const data = await res.json();
-      qs('#layout-hint').innerHTML = '<div class="kv"><div class="label">Active view</div><div class="value">' + escapeHtml(data.view || 'dashboard') + '</div><div class="label">Deltas</div><div class="value">' + (data.deltas||[]).length + '</div></div>';
-    } catch (e) {
-      qs('#layout-hint').innerHTML = '<div class="muted">Mock layout mode</div>';
-    }
-  }
 
   function escapeHtml(s) { return String(s || '').replace(/[&<>"']/g, c => ({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[c])); }
   function escAttr(s) { return escapeHtml(s); }
@@ -405,26 +417,40 @@ textarea { resize: vertical; min-height: 120px; }
   document.addEventListener('keydown', (e) => { if ((e.metaKey||e.ctrlKey) && e.key==='k') { e.preventDefault(); qs('#cmd-palette').classList.toggle('open'); if(qs('#cmd-palette').classList.contains('open')){ qs('#cmd-input').focus(); renderCommands(''); } } });
   qs('#close-whiteboard').addEventListener('click', () => closeModal('whiteboard-modal'));
 
+  const contextPoller = createContextPoller({
+    fetchContext: fetchContextSnapshot,
+    onSnapshot: renderContextSnapshot,
+    onError: handleContextError,
+    isHidden: () => document.hidden,
+    intervalMs: 8000,
+  });
+  function load() { return contextPoller.refresh(); }
+
   qs('#refresh').addEventListener('click', load);
   document.querySelectorAll('[data-work-filter]').forEach(button => {
+    button.setAttribute('aria-pressed', String(button.dataset.workFilter === selectedWorkFilter));
     button.addEventListener('click', () => {
       selectedWorkFilter = button.dataset.workFilter;
+      try {
+        sessionStorage.setItem(WORK_FILTER_KEY, selectedWorkFilter);
+      } catch (e) {
+        console.warn('Could not persist My Work filter', e);
+      }
       document.querySelectorAll('[data-work-filter]').forEach(item =>
         item.setAttribute('aria-pressed', String(item === button))
       );
       renderMyWork();
     });
   });
-  load();
+  contextPoller.start();
   loadEventStream();
-  setInterval(load, 8000);
-  setInterval(loadEventStream, 5000);
-  setInterval(tickWidgets, 2000);
-  tickWidgets();
+  setInterval(() => { if (!document.hidden) loadEventStream(); }, 5000);
+  document.addEventListener('visibilitychange', () => {
+    contextPoller.setVisible(!document.hidden);
+    if (!document.hidden) loadEventStream();
+  });
 
   /* Widgets */
-  updateRepoMix(qs('#repo-mix'), fetch);
-
   function widgetTick() { const el=qs('#widget-clock'); if(el) el.textContent = fmt(new Date()); }
   setInterval(widgetTick, 1000);
 })();
diff --git a/frontend/my-work.js b/frontend/my-work.js
index e6837a7..9c53d83 100644
--- a/frontend/my-work.js
+++ b/frontend/my-work.js
@@ -41,8 +41,18 @@ function summarizeMyWork(items) {
   return reviewLabel + ' · ' + assignedLabel;
 }
 
+function countMyWork(items) {
+  return {
+    all: items.length,
+    issue: items.filter((item) => item.kind === 'issue').length,
+    pull: items.filter((item) => item.kind === 'pull' && !item.is_review).length,
+    review: items.filter((item) => item.is_review).length,
+  };
+}
+
 if (typeof module !== 'undefined' && module.exports) {
   buildMyWork.filterMyWork = filterMyWork;
   buildMyWork.summarizeMyWork = summarizeMyWork;
+  buildMyWork.countMyWork = countMyWork;
   module.exports = buildMyWork;
 }
diff --git a/frontend/widgets.js b/frontend/widgets.js
index 92e47ef..097f450 100644
--- a/frontend/widgets.js
+++ b/frontend/widgets.js
@@ -1,19 +1,23 @@
+function renderRepoMix(element, data) {
+  const repos = data.repos || [];
+  const issues = (data.issues || []).filter((issue) => issue.state === 'open');
+  const pullRequests = data.pull_requests || [];
+  element.innerHTML = '<div class="kv"><div class="label">Repos</div><div class="value">' + repos.length + '</div><div class="label">Open issues</div><div class="value">' + issues.length + '</div><div class="label">Open PRs</div><div class="value">' + pullRequests.length + '</div></div>';
+}
+
 async function updateRepoMix(element, fetchContext = fetch) {
   try {
     const response = await fetchContext('api/v1/context', {
       headers: { Accept: 'application/json' },
     });
     if (!response.ok) throw new Error('HTTP ' + response.status);
-    const data = await response.json();
-    const repos = data.repos || [];
-    const issues = (data.issues || []).filter((issue) => issue.state === 'open');
-    const pullRequests = data.pull_requests || [];
-    element.innerHTML = '<div class="kv"><div class="label">Repos</div><div class="value">' + repos.length + '</div><div class="label">Open issues</div><div class="value">' + issues.length + '</div><div class="label">Open PRs</div><div class="value">' + pullRequests.length + '</div></div>';
+    renderRepoMix(element, await response.json());
   } catch (error) {
     element.innerHTML = '<div class="muted">Widget unavailable.</div>';
   }
 }
 
 if (typeof module !== 'undefined' && module.exports) {
+  updateRepoMix.renderRepoMix = renderRepoMix;
   module.exports = updateRepoMix;
 }
diff --git a/tests/test_context_polling.py b/tests/test_context_polling.py
new file mode 100644
index 0000000..52497d0
--- /dev/null
+++ b/tests/test_context_polling.py
@@ -0,0 +1,65 @@
+import json
+import subprocess
+from pathlib import Path
+
+
+POLLER = Path(__file__).parents[1] / "frontend" / "context-poller.js"
+
+
+def run_node(script: str) -> dict:
+    result = subprocess.run(
+        ["node", "-e", script], check=True, capture_output=True, text=True
+    )
+    return json.loads(result.stdout)
+
+
+def test_context_poller_is_single_flight_and_pauses_until_visible():
+    script = f"""
+const createContextPoller = require({json.dumps(str(POLLER))});
+let calls = 0;
+let hidden = false;
+let resolveRequest;
+const timers = [];
+const poller = createContextPoller({{
+  fetchContext: () => {{
+    calls += 1;
+    if (calls > 1) return Promise.resolve({{ repos: [] }});
+    return new Promise((resolve) => {{ resolveRequest = resolve; }});
+  }},
+  onSnapshot: () => {{}},
+  onError: () => {{}},
+  isHidden: () => hidden,
+  setTimer: (callback) => {{ timers.push(callback); return timers.length; }},
+  clearTimer: () => {{}},
+  intervalMs: 8000,
+}});
+
+(async () => {{
+  const first = poller.start();
+  const joined = poller.refresh();
+  const callsWhilePending = calls;
+  resolveRequest({{ repos: [] }});
+  await Promise.all([first, joined]);
+
+  hidden = true;
+  poller.setVisible(false);
+  const scheduled = timers.shift();
+  if (scheduled) scheduled();
+  await Promise.resolve();
+  const callsWhileHidden = calls;
+
+  hidden = false;
+  await poller.setVisible(true);
+  process.stdout.write(JSON.stringify({{
+    callsWhilePending,
+    callsWhileHidden,
+    callsAfterResume: calls,
+  }}));
+}})();
+"""
+
+    assert run_node(script) == {
+        "callsWhilePending": 1,
+        "callsWhileHidden": 1,
+        "callsAfterResume": 2,
+    }
diff --git a/tests/test_event_stream.py b/tests/test_event_stream.py
index 0594291..5f48776 100644
--- a/tests/test_event_stream.py
+++ b/tests/test_event_stream.py
@@ -17,7 +17,8 @@ def test_dashboard_has_realtime_gitea_event_stream_widget():
     assert "Gitea event stream" in html
     assert "id=\"gitea-events\"" in html
     assert "function paintEventStream" in html
-    assert "setInterval(loadEventStream, 5000)" in html
+    assert "setInterval(() => { if (!document.hidden) loadEventStream(); }, 5000)" in html
+    assert "if (!document.hidden) loadEventStream();" in html
     assert "event.actor?.login" in html
     assert "event.repo?.full_name" in html
 
diff --git a/tests/test_my_work.py b/tests/test_my_work.py
index c618049..b43e5ba 100644
--- a/tests/test_my_work.py
+++ b/tests/test_my_work.py
@@ -97,6 +97,24 @@ process.stdout.write(JSON.stringify({{
     assert output["summary"] == "1 review · 2 assigned"
 
 
+def test_my_work_filter_counts_distinguish_prs_from_review_requests():
+    items = [
+        {"kind": "issue", "is_review": False},
+        {"kind": "pull", "is_review": False},
+        {"kind": "pull", "is_review": True},
+    ]
+    script = f"""
+const buildMyWork = require({json.dumps(str(MY_WORK))});
+process.stdout.write(JSON.stringify(buildMyWork.countMyWork({json.dumps(items)})));
+"""
+
+    result = subprocess.run(
+        ["node", "-e", script], check=True, capture_output=True, text=True
+    )
+
+    assert json.loads(result.stdout) == {"all": 3, "issue": 1, "pull": 1, "review": 1}
+
+
 @pytest.mark.anyio
 async def test_mobile_dashboard_puts_filterable_my_work_before_auxiliary_panels():
     html = await dashboard()
@@ -112,3 +130,16 @@ async def test_mobile_dashboard_puts_filterable_my_work_before_auxiliary_panels(
     assert "buildMyWork(data)" in html
     assert "markMyWorkStale()" in html
     assert "filterMyWork(lastMyWork, selectedWorkFilter)" in html
+
+
+@pytest.mark.anyio
+async def test_mobile_filters_wrap_show_counts_and_persist_for_the_session():
+    html = await dashboard()
+
+    assert '.work-filters { display:flex; gap:8px; flex-wrap:wrap; }' in html
+    assert 'data-work-count="all"' in html
+    assert 'data-work-count="issue"' in html
+    assert 'data-work-count="pull"' in html
+    assert 'data-work-count="review"' in html
+    assert 'sessionStorage.getItem(WORK_FILTER_KEY)' in html
+    assert 'sessionStorage.setItem(WORK_FILTER_KEY, selectedWorkFilter)' in html
diff --git a/tests/test_shared_context_snapshot.py b/tests/test_shared_context_snapshot.py
new file mode 100644
index 0000000..1e1006e
--- /dev/null
+++ b/tests/test_shared_context_snapshot.py
@@ -0,0 +1,17 @@
+import pytest
+
+from src.views import dashboard
+
+
+@pytest.mark.anyio
+async def test_one_context_snapshot_updates_every_context_backed_panel():
+    html = await dashboard()
+
+    assert '<script src="static/context-poller.js"></script>' in html
+    assert "createContextPoller({" in html
+    assert "renderContextSnapshot(data)" in html
+    assert "renderRepoMix(qs('#repo-mix'), data)" in html
+    assert "setInterval(tickWidgets, 2000)" not in html
+    assert "updateRepoMix(qs('#repo-mix'), fetch)" not in html
+    assert "setInterval(load, 8000)" not in html
+    assert "document.addEventListener('visibilitychange'" in html
\ No newline at end of file