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MEDIUM severity

M1 — V2 "View all / View X more" button is always rendered, even when there is nothing more to show

app/components/Views/TrendingView/search/ExploreSearchResultsV2.tsx

V1 gated the header link on a computed hasMore flag:

      const hasMore = !isLoading && items.length > MAX_ITEMS_PER_SECTION;
      result.push({ type: 'header', feedId, title, hasMore });

        {item.hasMore && (
          <Pressable
            onPress={() => handleViewMore(section)}
            ...
          >

V2 unconditionally pushes a header and renders a pressable "View all / View X more" link, regardless of whether the section actually has more items than MAX_ITEMS_PER_SECTION = 3:

      result.push({ type: 'header', feedId, title });

        <Pressable
          onPress={() => handleViewMore(section)}
          hitSlop={8}
          accessibilityRole="button"
          accessibilityLabel={`${getViewMoreLabel(section.feedId, section.items.length, searchQuery, section.total)} ${item.title}`}
          ...
        >
          <Text variant={TextVariant.BodyMd} color={TextColor.TextAlternative}>
            {getViewMoreLabel(
              section.feedId,
              section.items.length,
              searchQuery,
              section.total,
            )}
          </Text>
          <Icon
            name={IconName.ArrowRight}
            size={IconSize.Sm}
            color={IconColor.IconAlternative}
          />
        </Pressable>

Concrete cases this affects:

• Local-search feeds (perps / stocks / sites) returning ≤ 3 items: V2 shows a "View all" link that navigates to the same 3 items the user already sees.
• Predictions/tokens with serverTotal ≤ MAX_ITEMS_PER_SECTION: same — the link still appears (label collapses to "View all" via getViewMoreLabel).

getViewMoreLabel correctly degrades the text to "View all", but the button itself still renders. Either:

• This is intentional ("View all" doubles as a tab switcher) — please confirm in the PR description / Figma, or
• V2's flatData should compute a hasMore analogous to V1, e.g.:

  const hasMore = section.total !== undefined
    ? section.total > MAX_ITEMS_PER_SECTION
    : LOCAL_SEARCH_FEEDS.has(feedId)
      ? items.length > MAX_ITEMS_PER_SECTION
      : false;

  and gate the Pressable on it.

Why medium: this is a visible UX behavior change between V1 and V2 introduced by this PR. Worth an explicit decision and a unit test asserting the chosen behavior.

M2 — V1 still uses local items.length > 3 for hasMore; doesn't read the new server total

app/components/Views/TrendingView/search/ExploreSearchResults.tsx

V1 (which is not behind exposePagination) computes hasMore purely from the client-side array:

      const hasMore = !isLoading && items.length > MAX_ITEMS_PER_SECTION;

Today this works because useExploreSearch defaults predictionsPageSize = 20, so any predictions search with > 3 server results will load ≥ 4 items into items and trigger hasMore. But the contract is now fragile:

• If a caller ever passes predictionsPageSize <= 3 (or upstream filtering reduces results below 4 with totalResults still large), V1 will hide the "View all" button while there are hundreds of results server-side.
• Tokens similarly carries total: tokens.totalCount only when exposePagination is true; V1 has no visibility into that.

Recommended: have V1 use (section.total ?? items.length) > MAX_ITEMS_PER_SECTION so that when V1 is ever upgraded to use exposePagination it works correctly out of the box; and add a test exercising the "small page, large total" case.

Why medium: this is a behavioral pitfall that wouldn't surface in a code search but would silently regress "View all" visibility for predictions/tokens depending on how pageSize is tuned downstream.

M3 — Search errors are silently swallowed at the provider; the new error-path test is unreachable in production

app/components/UI/Predict/providers/polymarket/PolymarketProvider.ts

PolymarketProvider.searchMarkets catches all errors and returns { markets: [], totalResults: 0 }:

    } catch (error) {
      DevLogger.log('Error searching markets via Polymarket API:', error);

      Logger.error(
        error instanceof Error ? error : new Error(String(error)),
        this.getErrorContext('searchMarkets', {
          hasSearchQuery: Boolean(query),
        }),
      );

      return { markets: [], totalResults: 0 };
    }

PredictController.searchMarkets wraps that call in withTrace but does not add a separate catch, so withTrace observes a successful return ({ markets: [], totalResults: 0 }) on network failure — no throw, no MARKETS_FAILED propagation.

Consequence for the new hook:

• usePredictSearchMarketData exposes error only when the controller .searchMarkets(...) promise rejects. In production it never does.
• The test that asserts this:

    it('sets error and clears data when search throws', async () => {
      mockSearchMarkets.mockRejectedValue(new Error('Search failed'));
      ...
      expect(result.current.error).toBe('Search failed');

  passes only because the mock rejects. The real controller path doesn't reject.

Result: when Polymarket's /public-search returns 500 or the device is offline, the search overlay shows "no results" indistinguishably from a legitimate empty query. Existing PredictFeed.view.test.tsx covers a separate "offline" UI by mocking the controller itself to reject — also non-representative of production.

This is a pre-existing concern that this PR inherits (it didn't introduce the swallow), but the PR builds a richer error contract on top of an unreachable error path. Suggest one of:

• Remove the provider's blanket catch and let withTrace + fallbackErrorCode: MARKETS_FAILED surface the failure; or
• Surface a sentinel field (e.g. error?: string) in { markets, totalResults } so the hook can distinguish empty from failed.

Why medium: silent failure of a network-bound search has real UX impact (users think the API "has nothing"). Worth fixing in the same PR since the contract is being modified anyway.

LOW severity

L1 — pageSize baked into the queryKey causes cache misses across contexts

    queryKey: ['predict', 'markets', 'search', trimmedQuery, pageSize],

If the explore overview uses pageSize: 20 and the predictions full-view uses, say, pageSize: 50, they will never share cache for the same query. Acceptable trade-off, just worth being aware of when tuning page sizes per surface.

L2 — No staleTime set on useInfiniteQuery

The query inherits react-query defaults (staleTime: 0), which can cause a refetch on every mount when the user navigates back to the search overlay. Consider an explicit staleTime: 30_000 (or whatever matches usePredictMarketData) to keep behavior aligned across hooks and avoid skeleton flicker.

L3 — searchMarkets trace omits page

        traceData: (result) => ({ marketCount: result.markets.length }),

For multi-page failures it would help to record page and pageSize in the trace context (and totalResults on success) for easier triage.

L4 — getNextPageParam reads lastPage.totalResults, not a stable first-page total

    getNextPageParam: (lastPage, allPages) => {
      // Compare pages fetched × pageSize against the server total rather than
      // counting client-side filtered markets, which can be fewer than the raw
      // event count and would cause infinite pagination.
      const fetched = allPages.length * pageSize;
      return fetched < lastPage.totalResults ? allPages.length + 1 : undefined;
    },

If the server total drifts between page fetches (data ingest mid-stream), hasMore can flip mid-pagination and the "View X more" label can desync with the rendered list. Low-probability for Polymarket; mention worth a comment or allPages[0].totalResults if stability matters.

L5 — V2 overview over-fetches: pageSize: 20 but only MAX_ITEMS_PER_SECTION = 3 shown

useExploreSearch defaults predictionsPageSize = 20; ExploreSearchResultsV2 slices to top 3. The extra 17 items are useful only as a prefetch for the "View all" navigation. If that navigation uses the same hook + same query + same pageSize, the cache is warm. If it ever diverges (per L1), the prefetch is wasted bandwidth. Consider documenting this rationale where predictionsPageSize is set.

L6 — Verbose accessibility label duplicating the visible text

          accessibilityLabel={`${getViewMoreLabel(section.feedId, section.items.length, searchQuery, section.total)} ${item.title}`}

This renders e.g. "View 47 more Crypto", which is fine but redundant with the visible label. Could be simplified to ${item.title}: ${getViewMoreLabel(...)} for screen reader clarity, or use accessibilityHint instead.