diff --git a/backend/api/freshness/freshness.go b/backend/api/freshness/freshness.go
index fcdcfcd..e80ae67 100644
--- a/backend/api/freshness/freshness.go
+++ b/backend/api/freshness/freshness.go
@@ -72,6 +72,22 @@ type Snapshot struct {
 	LatestNonEmptyBlock      Reference `json:"latest_non_empty_block"`
 }
 
+type Diagnostics struct {
+	TxVisibilityState           string       `json:"tx_visibility_state"`
+	ActivityState               string       `json:"activity_state"`
+	Explanation                 string       `json:"explanation,omitempty"`
+	TxLagBlocks                 *int64       `json:"tx_lag_blocks,omitempty"`
+	TxLagSeconds                *int64       `json:"tx_lag_seconds,omitempty"`
+	RecentBlockSampleSize       *int64       `json:"recent_block_sample_size,omitempty"`
+	RecentNonEmptyBlocks        *int64       `json:"recent_non_empty_blocks,omitempty"`
+	RecentTransactions          *int64       `json:"recent_transactions,omitempty"`
+	LatestNonEmptyFromBlockFeed Reference    `json:"latest_non_empty_block_from_block_feed"`
+	Source                      Source       `json:"source"`
+	Confidence                  Confidence   `json:"confidence"`
+	Provenance                  Provenance   `json:"provenance"`
+	Completeness                Completeness `json:"completeness"`
+}
+
 type SummaryCompleteness struct {
 	TransactionsFeed  Completeness `json:"transactions_feed"`
 	BlocksFeed        Completeness `json:"blocks_feed"`
@@ -163,6 +179,49 @@ func classifyMetricPresence[T comparable](value *T) Completeness {
 	return CompletenessComplete
 }
 
+func classifyTxVisibilityState(age *int64) string {
+	if age == nil {
+		return "unavailable"
+	}
+	switch {
+	case *age <= 15*60:
+		return "current"
+	case *age <= 3*60*60:
+		return "lagging"
+	default:
+		return "stale"
+	}
+}
+
+func classifyActivityState(txVisibility string, txLagBlocks, recentTransactions, recentNonEmptyBlocks *int64) (string, string, Completeness) {
+	if txVisibility == "unavailable" {
+		if recentTransactions != nil && *recentTransactions > 0 {
+			return "limited_observability", "Recent blocks show on-chain transaction activity, but indexed transaction freshness is unavailable.", CompletenessPartial
+		}
+		return "limited_observability", "Transaction freshness is unavailable, and recent block activity is limited.", CompletenessUnavailable
+	}
+
+	if recentTransactions != nil && *recentTransactions > 0 {
+		if txLagBlocks != nil && *txLagBlocks > 32 {
+			return "fresh_head_stale_transaction_visibility", "Recent block activity is present closer to the head than the visible indexed transaction feed.", CompletenessPartial
+		}
+		if *recentTransactions <= 3 {
+			return "sparse_activity", "Recent blocks contain only a small amount of transaction activity.", CompletenessComplete
+		}
+		return "active", "Recent blocks contain visible transaction activity close to the head.", CompletenessComplete
+	}
+
+	if recentNonEmptyBlocks != nil && *recentNonEmptyBlocks == 0 {
+		return "quiet_chain", "Recent sampled head blocks are empty, which indicates a quiet chain rather than a broken explorer.", CompletenessComplete
+	}
+
+	if txLagBlocks != nil && *txLagBlocks > 32 {
+		return "fresh_head_stale_transaction_visibility", "The chain head is current, but the indexed transaction feed trails the current tip.", CompletenessPartial
+	}
+
+	return "sparse_activity", "Recent visible transaction activity is limited.", CompletenessComplete
+}
+
 func BuildSnapshot(
 	ctx context.Context,
 	chainID int,
@@ -171,13 +230,22 @@ func BuildSnapshot(
 	now time.Time,
 	averageGasPrice *float64,
 	utilization *float64,
-) (Snapshot, SummaryCompleteness, Sampling, error) {
+) (Snapshot, SummaryCompleteness, Sampling, Diagnostics, error) {
 	snapshot := Snapshot{
 		ChainHead:                unknownReference(ProvenanceRPC),
 		LatestIndexedBlock:       unknownReference(ProvenanceExplorerIndex),
 		LatestIndexedTransaction: unknownReference(ProvenanceTxIndex),
 		LatestNonEmptyBlock:      unknownReference(ProvenanceTxIndex),
 	}
+	diagnostics := Diagnostics{
+		TxVisibilityState:           "unavailable",
+		ActivityState:               "limited_observability",
+		LatestNonEmptyFromBlockFeed: unknownReference(ProvenanceExplorerIndex),
+		Source:                      SourceReported,
+		Confidence:                  ConfidenceMedium,
+		Provenance:                  ProvenanceComposite,
+		Completeness:                CompletenessUnavailable,
+	}
 	issues := map[string]string{}
 
 	if probeHead != nil {
@@ -270,6 +338,84 @@ func BuildSnapshot(
 		issues["latest_non_empty_block"] = err.Error()
 	}
 
+	var latestBlockFeedNonEmptyNumber int64
+	var latestBlockFeedNonEmptyTime time.Time
+	if err := queryRow(ctx,
+		`SELECT b.number, b.timestamp
+		 FROM blocks b
+		 JOIN (
+		   SELECT DISTINCT block_number
+		   FROM transactions
+		   WHERE block_number IS NOT NULL
+		 ) tx_blocks
+		   ON tx_blocks.block_number = b.number
+		 ORDER BY b.number DESC
+		 LIMIT 1`,
+	).Scan(&latestBlockFeedNonEmptyNumber, &latestBlockFeedNonEmptyTime); err == nil {
+		timestamp := timePointer(latestBlockFeedNonEmptyTime)
+		ref := Reference{
+			BlockNumber:  ptrInt64(latestBlockFeedNonEmptyNumber),
+			Timestamp:    timestamp,
+			AgeSeconds:   computeAge(timestamp, now),
+			Source:       SourceDerived,
+			Confidence:   ConfidenceMedium,
+			Provenance:   ProvenanceComposite,
+			Completeness: snapshot.LatestIndexedTransaction.Completeness,
+		}
+		if snapshot.ChainHead.BlockNumber != nil {
+			distance := *snapshot.ChainHead.BlockNumber - latestBlockFeedNonEmptyNumber
+			if distance < 0 {
+				distance = 0
+			}
+			ref.DistanceFromHead = ptrInt64(distance)
+		}
+		diagnostics.LatestNonEmptyFromBlockFeed = ref
+	} else {
+		issues["latest_non_empty_block_from_block_feed"] = err.Error()
+	}
+
+	var recentBlockSampleSize, recentNonEmptyBlocks, recentTransactions int64
+	if err := queryRow(ctx,
+		`SELECT COUNT(*)::bigint,
+		        COUNT(*) FILTER (WHERE COALESCE(tx_counts.tx_count, 0) > 0)::bigint,
+		        COALESCE(SUM(COALESCE(tx_counts.tx_count, 0)), 0)::bigint
+		 FROM (
+		   SELECT number
+		   FROM blocks
+		   ORDER BY number DESC
+		   LIMIT 128
+		 ) recent_blocks
+		 LEFT JOIN (
+		   SELECT block_number, COUNT(*)::bigint AS tx_count
+		   FROM transactions
+		   WHERE block_number IS NOT NULL
+		   GROUP BY block_number
+		 ) tx_counts
+		   ON tx_counts.block_number = recent_blocks.number`,
+	).Scan(&recentBlockSampleSize, &recentNonEmptyBlocks, &recentTransactions); err == nil {
+		diagnostics.RecentBlockSampleSize = ptrInt64(recentBlockSampleSize)
+		diagnostics.RecentNonEmptyBlocks = ptrInt64(recentNonEmptyBlocks)
+		diagnostics.RecentTransactions = ptrInt64(recentTransactions)
+	} else {
+		issues["recent_block_activity"] = err.Error()
+	}
+
+	if snapshot.ChainHead.BlockNumber != nil && snapshot.LatestIndexedTransaction.BlockNumber != nil {
+		lag := *snapshot.ChainHead.BlockNumber - *snapshot.LatestIndexedTransaction.BlockNumber
+		if lag < 0 {
+			lag = 0
+		}
+		diagnostics.TxLagBlocks = ptrInt64(lag)
+	}
+	diagnostics.TxLagSeconds = snapshot.LatestIndexedTransaction.AgeSeconds
+	diagnostics.TxVisibilityState = classifyTxVisibilityState(snapshot.LatestIndexedTransaction.AgeSeconds)
+	diagnostics.ActivityState, diagnostics.Explanation, diagnostics.Completeness = classifyActivityState(
+		diagnostics.TxVisibilityState,
+		diagnostics.TxLagBlocks,
+		diagnostics.RecentTransactions,
+		diagnostics.RecentNonEmptyBlocks,
+	)
+
 	statsGeneratedAt := now.UTC().Format(time.RFC3339)
 	sampling := Sampling{
 		StatsGeneratedAt: ptrString(statsGeneratedAt),
@@ -289,7 +435,7 @@ func BuildSnapshot(
 		UtilizationMetric: classifyMetricPresence(utilization),
 	}
 
-	return snapshot, completeness, sampling, nil
+	return snapshot, completeness, sampling, diagnostics, nil
 }
 
 func ProbeChainHead(ctx context.Context, rpcURL string) (*Reference, error) {
diff --git a/backend/api/freshness/freshness_test.go b/backend/api/freshness/freshness_test.go
index 386f6f2..55dabac 100644
--- a/backend/api/freshness/freshness_test.go
+++ b/backend/api/freshness/freshness_test.go
@@ -42,6 +42,19 @@ func TestBuildSnapshotHealthyState(t *testing.T) {
 				*dest[1].(*time.Time) = now.Add(-5 * time.Second)
 				return nil
 			}}
+		case 4:
+			return fakeRow{scan: func(dest ...any) error {
+				*dest[0].(*int64) = 198
+				*dest[1].(*time.Time) = now.Add(-5 * time.Second)
+				return nil
+			}}
+		case 5:
+			return fakeRow{scan: func(dest ...any) error {
+				*dest[0].(*int64) = 128
+				*dest[1].(*int64) = 12
+				*dest[2].(*int64) = 34
+				return nil
+			}}
 		default:
 			t.Fatalf("unexpected call %d", call)
 			return nil
@@ -63,13 +76,14 @@ func TestBuildSnapshotHealthyState(t *testing.T) {
 		}, nil
 	}
 
-	snapshot, completeness, sampling, err := BuildSnapshot(context.Background(), 138, queryRow, probe, now, nil, nil)
+	snapshot, completeness, sampling, diagnostics, err := BuildSnapshot(context.Background(), 138, queryRow, probe, now, nil, nil)
 	require.NoError(t, err)
 	require.Equal(t, int64(200), *snapshot.ChainHead.BlockNumber)
 	require.Equal(t, int64(198), *snapshot.LatestIndexedTransaction.BlockNumber)
 	require.Equal(t, int64(2), *snapshot.LatestNonEmptyBlock.DistanceFromHead)
 	require.Equal(t, CompletenessComplete, completeness.TransactionsFeed)
 	require.NotNil(t, sampling.StatsGeneratedAt)
+	require.Equal(t, "active", diagnostics.ActivityState)
 }
 
 func TestBuildSnapshotFreshHeadStaleTransactionVisibility(t *testing.T) {
@@ -97,6 +111,19 @@ func TestBuildSnapshotFreshHeadStaleTransactionVisibility(t *testing.T) {
 				*dest[1].(*time.Time) = now.Add(-(9*time.Hour + 8*time.Minute))
 				return nil
 			}}
+		case 4:
+			return fakeRow{scan: func(dest ...any) error {
+				*dest[0].(*int64) = 3875998
+				*dest[1].(*time.Time) = now.Add(-4 * time.Second)
+				return nil
+			}}
+		case 5:
+			return fakeRow{scan: func(dest ...any) error {
+				*dest[0].(*int64) = 128
+				*dest[1].(*int64) = 3
+				*dest[2].(*int64) = 9
+				return nil
+			}}
 		default:
 			t.Fatalf("unexpected call %d", call)
 			return nil
@@ -118,11 +145,12 @@ func TestBuildSnapshotFreshHeadStaleTransactionVisibility(t *testing.T) {
 		}, nil
 	}
 
-	snapshot, completeness, _, err := BuildSnapshot(context.Background(), 138, queryRow, probe, now, nil, nil)
+	snapshot, completeness, _, diagnostics, err := BuildSnapshot(context.Background(), 138, queryRow, probe, now, nil, nil)
 	require.NoError(t, err)
 	require.Equal(t, int64(15340), *snapshot.LatestNonEmptyBlock.DistanceFromHead)
 	require.Equal(t, CompletenessStale, completeness.TransactionsFeed)
 	require.Equal(t, CompletenessComplete, completeness.BlocksFeed)
+	require.Equal(t, "fresh_head_stale_transaction_visibility", diagnostics.ActivityState)
 }
 
 func TestBuildSnapshotQuietChainButCurrent(t *testing.T) {
@@ -150,6 +178,19 @@ func TestBuildSnapshotQuietChainButCurrent(t *testing.T) {
 				*dest[1].(*time.Time) = now.Add(-512 * time.Second)
 				return nil
 			}}
+		case 4:
+			return fakeRow{scan: func(dest ...any) error {
+				*dest[0].(*int64) = 3874902
+				*dest[1].(*time.Time) = now.Add(-512 * time.Second)
+				return nil
+			}}
+		case 5:
+			return fakeRow{scan: func(dest ...any) error {
+				*dest[0].(*int64) = 128
+				*dest[1].(*int64) = 0
+				*dest[2].(*int64) = 0
+				return nil
+			}}
 		default:
 			t.Fatalf("unexpected call %d", call)
 			return nil
@@ -171,10 +212,11 @@ func TestBuildSnapshotQuietChainButCurrent(t *testing.T) {
 		}, nil
 	}
 
-	snapshot, completeness, _, err := BuildSnapshot(context.Background(), 138, queryRow, probe, now, nil, nil)
+	snapshot, completeness, _, diagnostics, err := BuildSnapshot(context.Background(), 138, queryRow, probe, now, nil, nil)
 	require.NoError(t, err)
 	require.Equal(t, int64(98), *snapshot.LatestNonEmptyBlock.DistanceFromHead)
 	require.Equal(t, CompletenessComplete, completeness.TransactionsFeed)
+	require.Equal(t, "quiet_chain", diagnostics.ActivityState)
 }
 
 func TestBuildSnapshotUnknownFieldsRemainNullSafe(t *testing.T) {
@@ -184,9 +226,10 @@ func TestBuildSnapshotUnknownFieldsRemainNullSafe(t *testing.T) {
 		}}
 	}
 
-	snapshot, completeness, sampling, err := BuildSnapshot(context.Background(), 138, queryRow, nil, time.Now().UTC(), nil, nil)
+	snapshot, completeness, sampling, diagnostics, err := BuildSnapshot(context.Background(), 138, queryRow, nil, time.Now().UTC(), nil, nil)
 	require.NoError(t, err)
 	require.Nil(t, snapshot.ChainHead.BlockNumber)
 	require.Equal(t, CompletenessUnavailable, completeness.TransactionsFeed)
 	require.NotNil(t, sampling.StatsGeneratedAt)
+	require.Equal(t, "limited_observability", diagnostics.ActivityState)
 }
diff --git a/backend/api/rest/stats.go b/backend/api/rest/stats.go
index 7c05fb8..4c0ce7e 100644
--- a/backend/api/rest/stats.go
+++ b/backend/api/rest/stats.go
@@ -25,6 +25,7 @@ type explorerStats struct {
 	Freshness                    freshness.Snapshot            `json:"freshness"`
 	Completeness                 freshness.SummaryCompleteness `json:"completeness"`
 	Sampling                     freshness.Sampling            `json:"sampling"`
+	Diagnostics                  freshness.Diagnostics         `json:"diagnostics"`
 }
 
 type explorerGasPrices struct {
@@ -160,7 +161,7 @@ func loadExplorerStats(ctx context.Context, chainID int, queryRow statsQueryFunc
 	}
 
 	rpcURL := strings.TrimSpace(os.Getenv("RPC_URL"))
-	snapshot, completeness, sampling, err := freshness.BuildSnapshot(
+	snapshot, completeness, sampling, diagnostics, err := freshness.BuildSnapshot(
 		ctx,
 		chainID,
 		queryRow,
@@ -185,6 +186,7 @@ func loadExplorerStats(ctx context.Context, chainID int, queryRow statsQueryFunc
 	stats.Freshness = snapshot
 	stats.Completeness = completeness
 	stats.Sampling = sampling
+	stats.Diagnostics = diagnostics
 
 	return stats, nil
 }
diff --git a/backend/api/rest/stats_internal_test.go b/backend/api/rest/stats_internal_test.go
index 9342fbd..a36127a 100644
--- a/backend/api/rest/stats_internal_test.go
+++ b/backend/api/rest/stats_internal_test.go
@@ -76,6 +76,13 @@ func TestLoadExplorerStatsReturnsValues(t *testing.T) {
 				case 11:
 					*dest[0].(*int64) = 40
 					*dest[1].(*time.Time) = time.Now().Add(-5 * time.Second)
+				case 12:
+					*dest[0].(*int64) = 42
+					*dest[1].(*time.Time) = time.Now().Add(-3 * time.Second)
+				case 13:
+					*dest[0].(*int64) = 128
+					*dest[1].(*int64) = 10
+					*dest[2].(*int64) = 22
 				default:
 					t.Fatalf("unexpected query call %d", call)
 				}
@@ -102,6 +109,8 @@ func TestLoadExplorerStatsReturnsValues(t *testing.T) {
 	require.NotNil(t, stats.Freshness.ChainHead.BlockNumber)
 	require.Equal(t, int64(40), *stats.Freshness.LatestIndexedTransaction.BlockNumber)
 	require.Equal(t, int64(4), *stats.Freshness.LatestNonEmptyBlock.DistanceFromHead)
+	require.Equal(t, "active", stats.Diagnostics.ActivityState)
+	require.Equal(t, int64(4), *stats.Diagnostics.TxLagBlocks)
 	require.Equal(t, "reported", string(stats.Freshness.ChainHead.Source))
 	require.Equal(t, freshness.CompletenessComplete, stats.Completeness.GasMetrics)
 	require.Equal(t, freshness.CompletenessComplete, stats.Completeness.UtilizationMetric)
diff --git a/backend/api/rest/track_routes.go b/backend/api/rest/track_routes.go
index dbb34b2..7c1dc30 100644
--- a/backend/api/rest/track_routes.go
+++ b/backend/api/rest/track_routes.go
@@ -50,12 +50,12 @@ func (s *Server) SetupTrackRoutes(mux *http.ServeMux, authMiddleware *middleware
 	}
 
 	rpcGateway := gateway.NewRPCGateway(rpcURL, cache, rateLimiter)
-	track1Server := track1.NewServer(rpcGateway, func(ctx context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, error) {
+	track1Server := track1.NewServer(rpcGateway, func(ctx context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, *freshness.Diagnostics, error) {
 		if s.db == nil {
-			return nil, nil, nil, nil
+			return nil, nil, nil, nil, nil
 		}
 		now := time.Now().UTC()
-		snapshot, completeness, sampling, err := freshness.BuildSnapshot(
+		snapshot, completeness, sampling, diagnostics, err := freshness.BuildSnapshot(
 			ctx,
 			s.chainID,
 			s.db.QueryRow,
@@ -67,9 +67,9 @@ func (s *Server) SetupTrackRoutes(mux *http.ServeMux, authMiddleware *middleware
 			nil,
 		)
 		if err != nil {
-			return nil, nil, nil, err
+			return nil, nil, nil, nil, err
 		}
-		return &snapshot, &completeness, &sampling, nil
+		return &snapshot, &completeness, &sampling, &diagnostics, nil
 	})
 
 	// Track 1 routes (public, optional auth)
diff --git a/backend/api/track1/bridge_status_data.go b/backend/api/track1/bridge_status_data.go
index a06b27e..44273f6 100644
--- a/backend/api/track1/bridge_status_data.go
+++ b/backend/api/track1/bridge_status_data.go
@@ -132,7 +132,7 @@ func (s *Server) BuildBridgeStatusData(ctx context.Context) map[string]interface
 		data["operator_verify"] = ov
 	}
 	if s.freshnessLoader != nil {
-		if snapshot, completeness, sampling, err := s.freshnessLoader(ctx); err == nil && snapshot != nil {
+		if snapshot, completeness, sampling, diagnostics, err := s.freshnessLoader(ctx); err == nil && snapshot != nil {
 			subsystems := map[string]interface{}{
 				"rpc_head": map[string]interface{}{
 					"status":       chainStatusFromProbe(p138),
@@ -194,6 +194,9 @@ func (s *Server) BuildBridgeStatusData(ctx context.Context) map[string]interface
 			data["freshness"] = snapshot
 			data["subsystems"] = subsystems
 			data["sampling"] = sampling
+			if diagnostics != nil {
+				data["diagnostics"] = diagnostics
+			}
 			data["mode"] = map[string]interface{}{
 				"kind":        modeKind,
 				"updated_at":  now,
diff --git a/backend/api/track1/ccip_health_test.go b/backend/api/track1/ccip_health_test.go
index 06ea7f0..35b51de 100644
--- a/backend/api/track1/ccip_health_test.go
+++ b/backend/api/track1/ccip_health_test.go
@@ -147,7 +147,7 @@ func TestBuildBridgeStatusDataIncludesCCIPRelay(t *testing.T) {
 	t.Setenv("MISSION_CONTROL_CCIP_JSON", "")
 
 	s := &Server{
-		freshnessLoader: func(context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, error) {
+		freshnessLoader: func(context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, *freshness.Diagnostics, error) {
 			now := time.Now().UTC().Format(time.RFC3339)
 			head := int64(16)
 			txBlock := int64(12)
@@ -187,6 +187,14 @@ func TestBuildBridgeStatusDataIncludesCCIPRelay(t *testing.T) {
 					BlocksFeed:       freshness.CompletenessComplete,
 				},
 				&freshness.Sampling{StatsGeneratedAt: &now},
+				&freshness.Diagnostics{
+					TxVisibilityState: "lagging",
+					ActivityState:     "fresh_head_stale_transaction_visibility",
+					Source:            freshness.SourceReported,
+					Confidence:        freshness.ConfidenceMedium,
+					Provenance:        freshness.ProvenanceComposite,
+					Completeness:      freshness.CompletenessPartial,
+				},
 				nil
 		},
 	}
@@ -201,6 +209,7 @@ func TestBuildBridgeStatusDataIncludesCCIPRelay(t *testing.T) {
 	require.True(t, ok)
 	require.Equal(t, true, probe["ok"])
 	require.Contains(t, got, "freshness")
+	require.Contains(t, got, "diagnostics")
 	require.Contains(t, got, "subsystems")
 	require.Contains(t, got, "mode")
 }
@@ -245,8 +254,8 @@ func TestBuildBridgeStatusDataDegradesWhenNamedRelayFails(t *testing.T) {
 	t.Setenv("CCIP_RELAY_HEALTH_URLS", "mainnet="+mainnet.URL+"/healthz,bsc="+bad.URL+"/healthz")
 
 	s := &Server{
-		freshnessLoader: func(context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, error) {
-			return nil, nil, nil, nil
+		freshnessLoader: func(context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, *freshness.Diagnostics, error) {
+			return nil, nil, nil, nil, nil
 		},
 	}
 	got := s.BuildBridgeStatusData(context.Background())
diff --git a/backend/api/track1/endpoints.go b/backend/api/track1/endpoints.go
index 5c30420..917a83f 100644
--- a/backend/api/track1/endpoints.go
+++ b/backend/api/track1/endpoints.go
@@ -21,13 +21,13 @@ var track1HashPattern = regexp.MustCompile(`^0x[a-fA-F0-9]{64}$`)
 // Server handles Track 1 endpoints (uses RPC gateway from lib)
 type Server struct {
 	rpcGateway      *gateway.RPCGateway
-	freshnessLoader func(ctx context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, error)
+	freshnessLoader func(ctx context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, *freshness.Diagnostics, error)
 }
 
 // NewServer creates a new Track 1 server
 func NewServer(
 	rpcGateway *gateway.RPCGateway,
-	freshnessLoader func(ctx context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, error),
+	freshnessLoader func(ctx context.Context) (*freshness.Snapshot, *freshness.SummaryCompleteness, *freshness.Sampling, *freshness.Diagnostics, error),
 ) *Server {
 	return &Server{
 		rpcGateway:      rpcGateway,
diff --git a/frontend/src/components/common/FreshnessTrustNote.tsx b/frontend/src/components/common/FreshnessTrustNote.tsx
index ec13848..5e8b87c 100644
--- a/frontend/src/components/common/FreshnessTrustNote.tsx
+++ b/frontend/src/components/common/FreshnessTrustNote.tsx
@@ -6,6 +6,7 @@ import {
   summarizeFreshnessConfidence,
 } from '@/utils/explorerFreshness'
 import { formatRelativeAge } from '@/utils/format'
+import { useUiMode } from './UiModeContext'
 
 function buildSummary(context: ChainActivityContext) {
   if (context.transaction_visibility_unavailable) {
@@ -27,7 +28,11 @@ function buildSummary(context: ChainActivityContext) {
   return 'Freshness context is based on the latest visible public explorer evidence.'
 }
 
-function buildDetail(context: ChainActivityContext) {
+function buildDetail(context: ChainActivityContext, diagnosticExplanation?: string | null) {
+  if (diagnosticExplanation) {
+    return diagnosticExplanation
+  }
+
   if (context.transaction_visibility_unavailable) {
     return 'Use chain-head visibility and the last non-empty block as the current trust anchors.'
   }
@@ -60,15 +65,38 @@ export default function FreshnessTrustNote({
   scopeLabel?: string
   className?: string
 }) {
+  const { mode } = useUiMode()
   const sourceLabel = resolveFreshnessSourceLabel(stats, bridgeStatus)
   const confidenceBadges = summarizeFreshnessConfidence(stats, bridgeStatus)
+  const diagnosticExplanation = stats?.diagnostics?.explanation || bridgeStatus?.data?.diagnostics?.explanation || null
   const normalizedClassName = className ? ` ${className}` : ''
 
+  if (mode === 'expert') {
+    return (
+      <div className={`rounded-2xl border border-gray-200 bg-white/80 px-4 py-3 text-sm dark:border-gray-800 dark:bg-gray-950/40${normalizedClassName}`}>
+        <div className="flex flex-col gap-2 lg:flex-row lg:items-center lg:justify-between">
+          <div className="font-medium text-gray-900 dark:text-white">{buildSummary(context)}</div>
+          <div className="text-xs text-gray-600 dark:text-gray-400">{sourceLabel}</div>
+        </div>
+        <div className="mt-2 flex flex-wrap gap-2 text-xs text-gray-500 dark:text-gray-400">
+          {confidenceBadges.map((badge) => (
+            <span
+              key={badge}
+              className="rounded-full border border-gray-200 bg-gray-50 px-2.5 py-1 dark:border-gray-700 dark:bg-gray-900/70"
+            >
+              {badge}
+            </span>
+          ))}
+        </div>
+      </div>
+    )
+  }
+
   return (
     <div className={`rounded-2xl border border-gray-200 bg-white/80 px-4 py-3 text-sm dark:border-gray-800 dark:bg-gray-950/40${normalizedClassName}`}>
       <div className="font-medium text-gray-900 dark:text-white">{buildSummary(context)}</div>
       <div className="mt-1 text-gray-600 dark:text-gray-400">
-        {buildDetail(context)} {scopeLabel ? `${scopeLabel}. ` : ''}{sourceLabel}
+        {buildDetail(context, diagnosticExplanation)} {scopeLabel ? `${scopeLabel}. ` : ''}{sourceLabel}
       </div>
       <div className="mt-2 flex flex-wrap gap-2 text-xs text-gray-500 dark:text-gray-400">
         {confidenceBadges.map((badge) => (
diff --git a/frontend/src/components/explorer/AnalyticsOperationsPage.tsx b/frontend/src/components/explorer/AnalyticsOperationsPage.tsx
index 387ff75..f4efe58 100644
--- a/frontend/src/components/explorer/AnalyticsOperationsPage.tsx
+++ b/frontend/src/components/explorer/AnalyticsOperationsPage.tsx
@@ -133,6 +133,7 @@ export default function AnalyticsOperationsPage({
         latestBlockNumber: stats?.latest_block ?? blocks[0]?.number ?? null,
         latestBlockTimestamp: blocks[0]?.timestamp ?? null,
         freshness: resolveEffectiveFreshness(stats, bridgeStatus),
+        diagnostics: stats?.diagnostics ?? bridgeStatus?.data?.diagnostics ?? null,
       }),
     [blocks, bridgeStatus, stats, transactions],
   )
diff --git a/frontend/src/components/explorer/BridgeMonitoringPage.tsx b/frontend/src/components/explorer/BridgeMonitoringPage.tsx
index 4aff7e1..79dc35c 100644
--- a/frontend/src/components/explorer/BridgeMonitoringPage.tsx
+++ b/frontend/src/components/explorer/BridgeMonitoringPage.tsx
@@ -9,7 +9,12 @@ import {
   type MissionControlRelayPayload,
   type MissionControlRelaySnapshot,
 } from '@/services/api/missionControl'
+import { statsApi, type ExplorerStats } from '@/services/api/stats'
 import { explorerFeaturePages } from '@/data/explorerOperations'
+import { summarizeChainActivity } from '@/utils/activityContext'
+import ActivityContextPanel from '@/components/common/ActivityContextPanel'
+import FreshnessTrustNote from '@/components/common/FreshnessTrustNote'
+import { resolveEffectiveFreshness } from '@/utils/explorerFreshness'
 
 type FeedState = 'connecting' | 'live' | 'fallback'
 
@@ -61,6 +66,9 @@ function relayPolicyCue(snapshot: MissionControlRelaySnapshot | null): string |
   if (snapshot.last_error?.scope === 'bridge_inventory') {
     return 'Queued release waiting on bridge inventory'
   }
+  if (snapshot.last_error?.scope === 'bridge_inventory_probe') {
+    return 'Bridge inventory check is temporarily unavailable'
+  }
   if (String(snapshot.status || '').toLowerCase() === 'paused' && snapshot.monitoring?.delivery_enabled === false) {
     return 'Delivery disabled by policy'
   }
@@ -130,10 +138,13 @@ function ActionLink({
 
 export default function BridgeMonitoringPage({
   initialBridgeStatus = null,
+  initialStats = null,
 }: {
   initialBridgeStatus?: MissionControlBridgeStatusResponse | null
+  initialStats?: ExplorerStats | null
 }) {
   const [bridgeStatus, setBridgeStatus] = useState<MissionControlBridgeStatusResponse | null>(initialBridgeStatus)
+  const [stats, setStats] = useState<ExplorerStats | null>(initialStats)
   const [feedState, setFeedState] = useState<FeedState>(initialBridgeStatus ? 'fallback' : 'connecting')
   const page = explorerFeaturePages.bridge
 
@@ -142,9 +153,15 @@ export default function BridgeMonitoringPage({
 
     const loadSnapshot = async () => {
       try {
-        const snapshot = await missionControlApi.getBridgeStatus()
+        const [snapshot, latestStats] = await Promise.all([
+          missionControlApi.getBridgeStatus(),
+          statsApi.get().catch(() => null),
+        ])
         if (!cancelled) {
           setBridgeStatus(snapshot)
+          if (latestStats) {
+            setStats(latestStats)
+          }
         }
       } catch (error) {
         if (!cancelled && process.env.NODE_ENV !== 'production') {
@@ -178,6 +195,19 @@ export default function BridgeMonitoringPage({
     }
   }, [])
 
+  const activityContext = useMemo(
+    () =>
+      summarizeChainActivity({
+        blocks: [],
+        transactions: [],
+        latestBlockNumber: stats?.latest_block,
+        latestBlockTimestamp: null,
+        freshness: resolveEffectiveFreshness(stats, bridgeStatus),
+        diagnostics: stats?.diagnostics ?? bridgeStatus?.data?.diagnostics ?? null,
+      }),
+    [bridgeStatus, stats],
+  )
+
   const relayLanes = useMemo((): RelayLaneCard[] => {
     const relays = getMissionControlRelays(bridgeStatus)
     if (!relays) return []
@@ -191,7 +221,12 @@ export default function BridgeMonitoringPage({
         return {
           key,
           label: getMissionControlRelayLabel(key),
-          status: snapshot?.last_error?.scope === 'bridge_inventory' ? 'underfunded' : status,
+          status:
+            snapshot?.last_error?.scope === 'bridge_inventory'
+              ? 'underfunded'
+              : snapshot?.last_error?.scope === 'bridge_inventory_probe'
+                ? 'warning'
+                : status,
           profile: snapshot?.service?.profile || key,
           sourceChain: snapshot?.source?.chain_name || 'Unknown',
           destinationChain: snapshot?.destination?.chain_name || 'Unknown',
@@ -244,6 +279,17 @@ export default function BridgeMonitoringPage({
         </Card>
       ) : null}
 
+      <div className="mb-6">
+        <ActivityContextPanel context={activityContext} title="Bridge Freshness Context" />
+        <FreshnessTrustNote
+          className="mt-3"
+          context={activityContext}
+          stats={stats}
+          bridgeStatus={bridgeStatus}
+          scopeLabel="Bridge relay posture is shown alongside the same explorer freshness model used on the homepage and core explorer routes"
+        />
+      </div>
+
       <div className="mb-6 grid gap-4 lg:grid-cols-3">
         <Card className="border border-sky-200 bg-sky-50/70 dark:border-sky-900/50 dark:bg-sky-950/20">
           <div className="text-sm font-semibold uppercase tracking-wide text-sky-800 dark:text-sky-100">
diff --git a/frontend/src/components/explorer/LiquidityOperationsPage.tsx b/frontend/src/components/explorer/LiquidityOperationsPage.tsx
index 609dfcb..a45916f 100644
--- a/frontend/src/components/explorer/LiquidityOperationsPage.tsx
+++ b/frontend/src/components/explorer/LiquidityOperationsPage.tsx
@@ -15,6 +15,12 @@ import {
 } from '@/services/api/liquidity'
 import { plannerApi, type InternalExecutionPlanResponse, type PlannerCapabilitiesResponse } from '@/services/api/planner'
 import { routesApi, type MissionControlLiquidityPool, type RouteMatrixResponse } from '@/services/api/routes'
+import { missionControlApi, type MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
+import { statsApi, type ExplorerStats } from '@/services/api/stats'
+import { summarizeChainActivity } from '@/utils/activityContext'
+import ActivityContextPanel from '@/components/common/ActivityContextPanel'
+import FreshnessTrustNote from '@/components/common/FreshnessTrustNote'
+import { resolveEffectiveFreshness } from '@/utils/explorerFreshness'
 import {
   formatCurrency,
   formatNumber,
@@ -43,6 +49,8 @@ interface LiquidityOperationsPageProps {
   initialPlannerCapabilities?: PlannerCapabilitiesResponse | null
   initialInternalPlan?: InternalExecutionPlanResponse | null
   initialTokenPoolRecords?: TokenPoolRecord[]
+  initialStats?: ExplorerStats | null
+  initialBridgeStatus?: MissionControlBridgeStatusResponse | null
 }
 
 function routePairLabel(routeId: string, routeLabel: string, tokenIn?: string, tokenOut?: string): string {
@@ -55,12 +63,16 @@ export default function LiquidityOperationsPage({
   initialPlannerCapabilities = null,
   initialInternalPlan = null,
   initialTokenPoolRecords = [],
+  initialStats = null,
+  initialBridgeStatus = null,
 }: LiquidityOperationsPageProps) {
   const [tokenList, setTokenList] = useState<TokenListResponse | null>(initialTokenList)
   const [routeMatrix, setRouteMatrix] = useState<RouteMatrixResponse | null>(initialRouteMatrix)
   const [plannerCapabilities, setPlannerCapabilities] = useState<PlannerCapabilitiesResponse | null>(initialPlannerCapabilities)
   const [internalPlan, setInternalPlan] = useState<InternalExecutionPlanResponse | null>(initialInternalPlan)
   const [tokenPoolRecords, setTokenPoolRecords] = useState<TokenPoolRecord[]>(initialTokenPoolRecords)
+  const [stats, setStats] = useState<ExplorerStats | null>(initialStats)
+  const [bridgeStatus, setBridgeStatus] = useState<MissionControlBridgeStatusResponse | null>(initialBridgeStatus)
   const [loadingError, setLoadingError] = useState<string | null>(null)
   const [copiedEndpoint, setCopiedEndpoint] = useState<string | null>(null)
 
@@ -72,7 +84,9 @@ export default function LiquidityOperationsPage({
       initialRouteMatrix &&
       initialPlannerCapabilities &&
       initialInternalPlan &&
-      initialTokenPoolRecords.length > 0
+      initialTokenPoolRecords.length > 0 &&
+      initialStats &&
+      initialBridgeStatus
     ) {
       return () => {
         cancelled = true
@@ -80,12 +94,14 @@ export default function LiquidityOperationsPage({
     }
 
     const load = async () => {
-      const [tokenListResult, routeMatrixResult, plannerCapabilitiesResult, planResult] =
+      const [tokenListResult, routeMatrixResult, plannerCapabilitiesResult, planResult, statsResult, bridgeResult] =
         await Promise.allSettled([
           configApi.getTokenList(),
           routesApi.getRouteMatrix(),
           plannerApi.getCapabilities(),
           plannerApi.getInternalExecutionPlan(),
+          statsApi.get(),
+          missionControlApi.getBridgeStatus(),
         ])
 
       if (cancelled) return
@@ -94,6 +110,8 @@ export default function LiquidityOperationsPage({
       if (routeMatrixResult.status === 'fulfilled') setRouteMatrix(routeMatrixResult.value)
       if (plannerCapabilitiesResult.status === 'fulfilled') setPlannerCapabilities(plannerCapabilitiesResult.value)
       if (planResult.status === 'fulfilled') setInternalPlan(planResult.value)
+      if (statsResult.status === 'fulfilled') setStats(statsResult.value)
+      if (bridgeResult.status === 'fulfilled') setBridgeStatus(bridgeResult.value)
 
       if (tokenListResult.status === 'fulfilled') {
         const featuredTokens = selectFeaturedLiquidityTokens(tokenListResult.value.tokens || [])
@@ -113,14 +131,10 @@ export default function LiquidityOperationsPage({
         }
       }
 
-      const failedCount = [
-        tokenListResult,
-        routeMatrixResult,
-        plannerCapabilitiesResult,
-        planResult,
-      ].filter((result) => result.status === 'rejected').length
+      const results = [tokenListResult, routeMatrixResult, plannerCapabilitiesResult, planResult, statsResult, bridgeResult] as const
+      const failedCount = results.filter((result) => result.status === 'rejected').length
 
-      if (failedCount === 4) {
+      if (failedCount === results.length) {
         setLoadingError('Live liquidity data is temporarily unavailable from the public explorer APIs.')
       }
     }
@@ -137,9 +151,11 @@ export default function LiquidityOperationsPage({
       cancelled = true
     }
   }, [
+    initialBridgeStatus,
     initialInternalPlan,
     initialPlannerCapabilities,
     initialRouteMatrix,
+    initialStats,
     initialTokenList,
     initialTokenPoolRecords,
   ])
@@ -168,6 +184,18 @@ export default function LiquidityOperationsPage({
     () => new Set(aggregatedPools.map((pool) => pool.dex).filter(Boolean)).size,
     [aggregatedPools]
   )
+  const activityContext = useMemo(
+    () =>
+      summarizeChainActivity({
+        blocks: [],
+        transactions: [],
+        latestBlockNumber: stats?.latest_block,
+        latestBlockTimestamp: null,
+        freshness: resolveEffectiveFreshness(stats, bridgeStatus),
+        diagnostics: stats?.diagnostics ?? bridgeStatus?.data?.diagnostics ?? null,
+      }),
+    [bridgeStatus, stats],
+  )
 
   const insightLines = useMemo(
     () => [
@@ -240,6 +268,17 @@ export default function LiquidityOperationsPage({
         </Card>
       ) : null}
 
+      <div className="mb-6">
+        <ActivityContextPanel context={activityContext} title="Liquidity Freshness Context" />
+        <FreshnessTrustNote
+          className="mt-3"
+          context={activityContext}
+          stats={stats}
+          bridgeStatus={bridgeStatus}
+          scopeLabel="Liquidity inventory and planner posture are shown alongside the same explorer freshness model used on the homepage and core explorer routes"
+        />
+      </div>
+
       <div className="mb-8 grid gap-4 md:grid-cols-2 xl:grid-cols-4">
         <Card className="border border-emerald-200 bg-emerald-50/70 dark:border-emerald-900/50 dark:bg-emerald-950/20">
           <div className="text-sm font-semibold uppercase tracking-wide text-emerald-800 dark:text-emerald-100">
diff --git a/frontend/src/components/explorer/OperationsHubPage.tsx b/frontend/src/components/explorer/OperationsHubPage.tsx
index 6d83655..3fff1fe 100644
--- a/frontend/src/components/explorer/OperationsHubPage.tsx
+++ b/frontend/src/components/explorer/OperationsHubPage.tsx
@@ -10,6 +10,7 @@ import { summarizeChainActivity } from '@/utils/activityContext'
 import ActivityContextPanel from '@/components/common/ActivityContextPanel'
 import FreshnessTrustNote from '@/components/common/FreshnessTrustNote'
 import { resolveEffectiveFreshness } from '@/utils/explorerFreshness'
+import { statsApi, type ExplorerStats } from '@/services/api/stats'
 
 function relativeAge(isoString?: string): string {
   if (!isoString) return 'Unknown'
@@ -56,6 +57,7 @@ interface OperationsHubPageProps {
   initialNetworksConfig?: NetworksConfigResponse | null
   initialTokenList?: TokenListResponse | null
   initialCapabilities?: CapabilitiesResponse | null
+  initialStats?: ExplorerStats | null
 }
 
 export default function OperationsHubPage({
@@ -64,6 +66,7 @@ export default function OperationsHubPage({
   initialNetworksConfig = null,
   initialTokenList = null,
   initialCapabilities = null,
+  initialStats = null,
 }: OperationsHubPageProps) {
   const { mode } = useUiMode()
   const [bridgeStatus, setBridgeStatus] = useState<MissionControlBridgeStatusResponse | null>(initialBridgeStatus)
@@ -71,6 +74,7 @@ export default function OperationsHubPage({
   const [networksConfig, setNetworksConfig] = useState<NetworksConfigResponse | null>(initialNetworksConfig)
   const [tokenList, setTokenList] = useState<TokenListResponse | null>(initialTokenList)
   const [capabilities, setCapabilities] = useState<CapabilitiesResponse | null>(initialCapabilities)
+  const [stats, setStats] = useState<ExplorerStats | null>(initialStats)
   const [loadingError, setLoadingError] = useState<string | null>(null)
   const page = explorerFeaturePages.operations
 
@@ -78,13 +82,14 @@ export default function OperationsHubPage({
     let cancelled = false
 
     const load = async () => {
-      const [bridgeResult, routesResult, networksResult, tokenListResult, capabilitiesResult] =
+      const [bridgeResult, routesResult, networksResult, tokenListResult, capabilitiesResult, statsResult] =
         await Promise.allSettled([
           missionControlApi.getBridgeStatus(),
           routesApi.getRouteMatrix(),
           configApi.getNetworks(),
           configApi.getTokenList(),
           configApi.getCapabilities(),
+          statsApi.get(),
         ])
 
       if (cancelled) return
@@ -94,6 +99,7 @@ export default function OperationsHubPage({
       if (networksResult.status === 'fulfilled') setNetworksConfig(networksResult.value)
       if (tokenListResult.status === 'fulfilled') setTokenList(tokenListResult.value)
       if (capabilitiesResult.status === 'fulfilled') setCapabilities(capabilitiesResult.value)
+      if (statsResult.status === 'fulfilled') setStats(statsResult.value)
 
       const failedCount = [
         bridgeResult,
@@ -101,9 +107,10 @@ export default function OperationsHubPage({
         networksResult,
         tokenListResult,
         capabilitiesResult,
+        statsResult,
       ].filter((result) => result.status === 'rejected').length
 
-      if (failedCount === 5) {
+      if (failedCount === 6) {
         setLoadingError('Public explorer operations data is temporarily unavailable.')
       }
     }
@@ -153,9 +160,10 @@ export default function OperationsHubPage({
           ? Number(bridgeStatus.data.chains['138'].block_number)
           : null,
         latestBlockTimestamp: null,
-        freshness: resolveEffectiveFreshness(null, bridgeStatus),
+        freshness: resolveEffectiveFreshness(stats, bridgeStatus),
+        diagnostics: stats?.diagnostics ?? bridgeStatus?.data?.diagnostics ?? null,
       }),
-    [bridgeStatus],
+    [bridgeStatus, stats],
   )
 
   return (
@@ -191,6 +199,7 @@ export default function OperationsHubPage({
         <FreshnessTrustNote
           className="mt-3"
           context={activityContext}
+          stats={stats}
           bridgeStatus={bridgeStatus}
           scopeLabel="This page reflects mission-control freshness, public bridge status, and explorer-served config surfaces."
         />
diff --git a/frontend/src/components/explorer/RoutesMonitoringPage.tsx b/frontend/src/components/explorer/RoutesMonitoringPage.tsx
index b502724..9b1f3f8 100644
--- a/frontend/src/components/explorer/RoutesMonitoringPage.tsx
+++ b/frontend/src/components/explorer/RoutesMonitoringPage.tsx
@@ -9,11 +9,19 @@ import {
   type RouteMatrixRoute,
   type RouteMatrixResponse,
 } from '@/services/api/routes'
+import { missionControlApi, type MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
+import { statsApi, type ExplorerStats } from '@/services/api/stats'
+import { summarizeChainActivity } from '@/utils/activityContext'
+import ActivityContextPanel from '@/components/common/ActivityContextPanel'
+import FreshnessTrustNote from '@/components/common/FreshnessTrustNote'
+import { resolveEffectiveFreshness } from '@/utils/explorerFreshness'
 
 interface RoutesMonitoringPageProps {
   initialRouteMatrix?: RouteMatrixResponse | null
   initialNetworks?: ExplorerNetwork[]
   initialPools?: MissionControlLiquidityPool[]
+  initialStats?: ExplorerStats | null
+  initialBridgeStatus?: MissionControlBridgeStatusResponse | null
 }
 
 const canonicalLiquidityToken = '0x93E66202A11B1772E55407B32B44e5Cd8eda7f22'
@@ -90,10 +98,14 @@ export default function RoutesMonitoringPage({
   initialRouteMatrix = null,
   initialNetworks = [],
   initialPools = [],
+  initialStats = null,
+  initialBridgeStatus = null,
 }: RoutesMonitoringPageProps) {
   const [routeMatrix, setRouteMatrix] = useState<RouteMatrixResponse | null>(initialRouteMatrix)
   const [networks, setNetworks] = useState<ExplorerNetwork[]>(initialNetworks)
   const [pools, setPools] = useState<MissionControlLiquidityPool[]>(initialPools)
+  const [stats, setStats] = useState<ExplorerStats | null>(initialStats)
+  const [bridgeStatus, setBridgeStatus] = useState<MissionControlBridgeStatusResponse | null>(initialBridgeStatus)
   const [loadingError, setLoadingError] = useState<string | null>(null)
   const page = explorerFeaturePages.routes
 
@@ -101,10 +113,12 @@ export default function RoutesMonitoringPage({
     let cancelled = false
 
     const load = async () => {
-      const [matrixResult, networksResult, poolsResult] = await Promise.allSettled([
+      const [matrixResult, networksResult, poolsResult, statsResult, bridgeResult] = await Promise.allSettled([
         routesApi.getRouteMatrix(),
         routesApi.getNetworks(),
         routesApi.getTokenPools(canonicalLiquidityToken),
+        statsApi.get(),
+        missionControlApi.getBridgeStatus(),
       ])
 
       if (cancelled) return
@@ -118,11 +132,19 @@ export default function RoutesMonitoringPage({
       if (poolsResult.status === 'fulfilled') {
         setPools(poolsResult.value.pools || [])
       }
+      if (statsResult.status === 'fulfilled') {
+        setStats(statsResult.value)
+      }
+      if (bridgeResult.status === 'fulfilled') {
+        setBridgeStatus(bridgeResult.value)
+      }
 
       if (
         matrixResult.status === 'rejected' &&
         networksResult.status === 'rejected' &&
-        poolsResult.status === 'rejected'
+        poolsResult.status === 'rejected' &&
+        statsResult.status === 'rejected' &&
+        bridgeResult.status === 'rejected'
       ) {
         setLoadingError('Live route inventory is temporarily unavailable.')
       }
@@ -166,6 +188,18 @@ export default function RoutesMonitoringPage({
       .filter((network) => [138, 1, 651940, 56, 43114].includes(network.chainIdDecimal || 0))
       .sort((left, right) => (left.chainIdDecimal || 0) - (right.chainIdDecimal || 0))
   }, [networks])
+  const activityContext = useMemo(
+    () =>
+      summarizeChainActivity({
+        blocks: [],
+        transactions: [],
+        latestBlockNumber: stats?.latest_block,
+        latestBlockTimestamp: null,
+        freshness: resolveEffectiveFreshness(stats, bridgeStatus),
+        diagnostics: stats?.diagnostics ?? bridgeStatus?.data?.diagnostics ?? null,
+      }),
+    [bridgeStatus, stats],
+  )
 
   return (
     <div className="container mx-auto px-4 py-6 sm:py-8">
@@ -195,6 +229,17 @@ export default function RoutesMonitoringPage({
         </Card>
       ) : null}
 
+      <div className="mb-6">
+        <ActivityContextPanel context={activityContext} title="Routes Freshness Context" />
+        <FreshnessTrustNote
+          className="mt-3"
+          context={activityContext}
+          stats={stats}
+          bridgeStatus={bridgeStatus}
+          scopeLabel="Route availability reflects the current public route matrix and the same explorer freshness model used on the core explorer pages"
+        />
+      </div>
+
       <div className="mb-6 grid gap-4 md:grid-cols-2 xl:grid-cols-4">
         <Card className="border border-emerald-200 bg-emerald-50/70 dark:border-emerald-900/50 dark:bg-emerald-950/20">
           <div className="text-sm font-semibold uppercase tracking-wide text-emerald-800 dark:text-emerald-100">
diff --git a/frontend/src/components/home/HomePage.tsx b/frontend/src/components/home/HomePage.tsx
index bb67f1a..7af68f2 100644
--- a/frontend/src/components/home/HomePage.tsx
+++ b/frontend/src/components/home/HomePage.tsx
@@ -88,6 +88,10 @@ function formatGasPriceGwei(value: number) {
   return `${value.toFixed(3)} gwei`
 }
 
+function compactStatNote(guided: string, expert: string, mode: 'guided' | 'expert') {
+  return mode === 'guided' ? guided : expert
+}
+
 export default function Home({
   initialStats = null,
   initialRecentBlocks = [],
@@ -311,6 +315,7 @@ export default function Home({
     latestBlockNumber: latestBlock,
     latestBlockTimestamp: recentBlocks[0]?.timestamp ?? null,
     freshness: resolveEffectiveFreshness(stats, bridgeStatus),
+    diagnostics: stats?.diagnostics ?? bridgeStatus?.data?.diagnostics ?? null,
   })
   const txCompleteness = stats?.completeness?.transactions_feed || bridgeStatus?.data?.subsystems?.tx_index?.completeness || null
   const blockCompleteness = stats?.completeness?.blocks_feed || null
@@ -358,6 +363,56 @@ export default function Home({
   const missionCollapsedSummary = relaySummary
     ? `${missionHeadline} · ${relayOperationalCount} operational`
     : `${missionHeadline}${chainStatus?.status ? ` · chain 138 ${chainStatus.status}` : ''}`
+  const primaryMetricCards = [
+    {
+      label: 'Latest Block',
+      value: latestBlock != null ? latestBlock.toLocaleString() : 'Unavailable',
+      note: activityContext.latest_block_timestamp
+        ? compactStatNote(
+            `Head freshness ${formatRelativeAge(activityContext.latest_block_timestamp)}${blockCompleteness ? ` · ${blockCompleteness}` : ''}`,
+            formatRelativeAge(activityContext.latest_block_timestamp),
+            mode,
+          )
+        : compactStatNote('Head freshness unavailable.', 'Unavailable', mode),
+    },
+    {
+      label: 'Total Blocks',
+      value: stats ? stats.total_blocks.toLocaleString() : 'Unavailable',
+      note: compactStatNote('Visible public explorer block count.', 'Explorer block count', mode),
+    },
+    {
+      label: 'Total Transactions',
+      value: stats ? stats.total_transactions.toLocaleString() : 'Unavailable',
+      note: compactStatNote('Visible indexed explorer transaction count.', 'Indexed tx count', mode),
+    },
+    {
+      label: 'Total Addresses',
+      value: stats ? stats.total_addresses.toLocaleString() : 'Unavailable',
+      note: compactStatNote('Current public explorer address count.', 'Address count', mode),
+    },
+  ]
+  const secondaryMetricCards = [
+    {
+      label: 'Avg Block Time',
+      value: avgBlockTimeSummary.value,
+      note: compactStatNote(avgBlockTimeSummary.note, averageBlockTimeSeconds != null ? 'Reported' : 'Unavailable', mode),
+    },
+    {
+      label: 'Avg Gas Price',
+      value: avgGasPriceSummary.value,
+      note: compactStatNote(avgGasPriceSummary.note, averageGasPriceGwei != null ? 'Reported' : 'Unavailable', mode),
+    },
+    {
+      label: 'Transactions Today',
+      value: transactionsTodaySummary.value,
+      note: compactStatNote(transactionsTodaySummary.note, transactionsToday != null ? 'Reported' : 'Unavailable', mode),
+    },
+    {
+      label: 'Network Utilization',
+      value: networkUtilizationSummary.value,
+      note: compactStatNote(networkUtilizationSummary.note, networkUtilization != null ? 'Latest stats sample' : 'Unavailable', mode),
+    },
+  ]
 
   useEffect(() => {
     setRelayPage(1)
@@ -617,64 +672,63 @@ export default function Home({
       )}
 
       {stats && (
-        <div className="mb-8 grid grid-cols-1 gap-3 sm:gap-4 md:grid-cols-4">
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Latest Block</div>
-            <div className="text-xl font-bold sm:text-2xl">
-              {latestBlock != null ? latestBlock.toLocaleString() : 'Unavailable'}
+        <div className="mb-8 space-y-4">
+          <div className="grid grid-cols-1 gap-3 sm:gap-4 md:grid-cols-4">
+            {primaryMetricCards.map((card) => (
+              <Card key={card.label}>
+                <div className="text-sm text-gray-600 dark:text-gray-400">{card.label}</div>
+                <div className="text-xl font-bold sm:text-2xl">{card.value}</div>
+                <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">{card.note}</div>
+              </Card>
+            ))}
+          </div>
+
+          {mode === 'guided' ? (
+            <div className="grid grid-cols-1 gap-3 sm:gap-4 md:grid-cols-4">
+              {secondaryMetricCards.map((card) => (
+                <Card key={card.label}>
+                  <div className="text-sm text-gray-600 dark:text-gray-400">{card.label}</div>
+                  <div className="text-xl font-bold sm:text-2xl">{card.value}</div>
+                  <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">{card.note}</div>
+                </Card>
+              ))}
             </div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">
-              {activityContext.latest_block_timestamp
-                ? `Head freshness ${formatRelativeAge(activityContext.latest_block_timestamp)}${blockCompleteness ? ` · ${blockCompleteness}` : ''}`
-                : 'Head freshness unavailable.'}
-            </div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Total Blocks</div>
-            <div className="text-xl font-bold sm:text-2xl">{stats.total_blocks.toLocaleString()}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">Visible public explorer block count.</div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Total Transactions</div>
-            <div className="text-xl font-bold sm:text-2xl">{stats.total_transactions.toLocaleString()}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">Latest visible tx {latestTransactionAgeLabel}.</div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Total Addresses</div>
-            <div className="text-xl font-bold sm:text-2xl">{stats.total_addresses.toLocaleString()}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">Current public explorer address count.</div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Avg Block Time</div>
-            <div className="text-xl font-bold sm:text-2xl">{avgBlockTimeSummary.value}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">{avgBlockTimeSummary.note}</div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Avg Gas Price</div>
-            <div className="text-xl font-bold sm:text-2xl">{avgGasPriceSummary.value}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">{avgGasPriceSummary.note}</div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Transactions Today</div>
-            <div className="text-xl font-bold sm:text-2xl">{transactionsTodaySummary.value}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">{transactionsTodaySummary.note}</div>
-          </Card>
-          <Card>
-            <div className="text-sm text-gray-600 dark:text-gray-400">Network Utilization</div>
-            <div className="text-xl font-bold sm:text-2xl">{networkUtilizationSummary.value}</div>
-            <div className="mt-2 text-xs text-gray-500 dark:text-gray-400">{networkUtilizationSummary.note}</div>
-          </Card>
+          ) : (
+            <Card>
+              <div className="flex flex-col gap-3 lg:flex-row lg:items-start lg:justify-between">
+                <div>
+                  <div className="text-sm font-semibold text-gray-900 dark:text-white">Telemetry Snapshot</div>
+                  <div className="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                    Secondary public stats in a denser expert layout.
+                  </div>
+                </div>
+                <div className="grid flex-1 gap-3 sm:grid-cols-2 xl:grid-cols-4">
+                  {secondaryMetricCards.map((card) => (
+                    <div key={card.label} className="rounded-2xl border border-gray-200 bg-gray-50/70 px-4 py-3 dark:border-gray-800 dark:bg-gray-900/40">
+                      <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">{card.label}</div>
+                      <div className="mt-1 text-lg font-semibold text-gray-900 dark:text-white">{card.value}</div>
+                      <div className="mt-1 text-xs text-gray-500 dark:text-gray-400">{card.note}</div>
+                    </div>
+                  ))}
+                </div>
+              </div>
+            </Card>
+          )}
         </div>
       )}
 
       <div className="mb-8">
-        <ActivityContextPanel context={activityContext} />
+        <ActivityContextPanel context={activityContext} title={mode === 'guided' ? 'Chain Activity Context' : 'Freshness & Activity'} />
         <FreshnessTrustNote
           className="mt-3"
           context={activityContext}
           stats={stats}
           bridgeStatus={bridgeStatus}
-          scopeLabel="Homepage status combines chain freshness, transaction visibility, and mission-control posture."
+          scopeLabel={
+            mode === 'guided'
+              ? 'Homepage status combines chain freshness, transaction visibility, and mission-control posture.'
+              : 'Homepage freshness view aligns chain, transaction, and mission-control posture.'
+          }
         />
       </div>
 
diff --git a/frontend/src/components/wallet/WalletPage.tsx b/frontend/src/components/wallet/WalletPage.tsx
index 8cc6c7f..562201e 100644
--- a/frontend/src/components/wallet/WalletPage.tsx
+++ b/frontend/src/components/wallet/WalletPage.tsx
@@ -1,3 +1,4 @@
+import { useEffect, useState } from 'react'
 import type {
   CapabilitiesCatalog,
   FetchMetadata,
@@ -7,6 +8,15 @@ import type {
 import { AddToMetaMask } from '@/components/wallet/AddToMetaMask'
 import Link from 'next/link'
 import { Explain, useUiMode } from '@/components/common/UiModeContext'
+import { accessApi, type WalletAccessSession } from '@/services/api/access'
+import EntityBadge from '@/components/common/EntityBadge'
+import { addressesApi, type AddressInfo, type TransactionSummary } from '@/services/api/addresses'
+import {
+  isWatchlistEntry,
+  readWatchlistFromStorage,
+  toggleWatchlistEntry,
+  writeWatchlistToStorage,
+} from '@/utils/watchlist'
 
 interface WalletPageProps {
   initialNetworks?: NetworksCatalog | null
@@ -17,8 +27,111 @@ interface WalletPageProps {
   initialCapabilitiesMeta?: FetchMetadata | null
 }
 
+function shortAddress(value?: string | null): string {
+  if (!value) return 'Unknown'
+  if (value.length <= 14) return value
+  return `${value.slice(0, 6)}...${value.slice(-4)}`
+}
+
 export default function WalletPage(props: WalletPageProps) {
   const { mode } = useUiMode()
+  const [walletSession, setWalletSession] = useState<WalletAccessSession | null>(null)
+  const [connectingWallet, setConnectingWallet] = useState(false)
+  const [walletError, setWalletError] = useState<string | null>(null)
+  const [copiedAddress, setCopiedAddress] = useState(false)
+  const [watchlistEntries, setWatchlistEntries] = useState<string[]>([])
+  const [addressInfo, setAddressInfo] = useState<AddressInfo | null>(null)
+  const [recentAddressTransactions, setRecentAddressTransactions] = useState<TransactionSummary[]>([])
+
+  useEffect(() => {
+    if (typeof window === 'undefined') return
+
+    const syncSession = () => {
+      setWalletSession(accessApi.getStoredWalletSession())
+    }
+
+    const syncWatchlist = () => {
+      setWatchlistEntries(readWatchlistFromStorage(window.localStorage))
+    }
+
+    syncSession()
+    syncWatchlist()
+    window.addEventListener('explorer-access-session-changed', syncSession)
+    window.addEventListener('storage', syncWatchlist)
+    return () => {
+      window.removeEventListener('explorer-access-session-changed', syncSession)
+      window.removeEventListener('storage', syncWatchlist)
+    }
+  }, [])
+
+  const handleConnectWallet = async () => {
+    setConnectingWallet(true)
+    setWalletError(null)
+    try {
+      const session = await accessApi.connectWalletSession()
+      setWalletSession(session)
+    } catch (error) {
+      setWalletError(error instanceof Error ? error.message : 'Wallet connection failed.')
+    } finally {
+      setConnectingWallet(false)
+    }
+  }
+
+  const handleDisconnectWallet = () => {
+    accessApi.clearSession()
+    accessApi.clearWalletSession()
+    setWalletSession(null)
+  }
+
+  const handleCopyAddress = async () => {
+    if (!walletSession?.address || typeof navigator === 'undefined' || !navigator.clipboard) return
+    await navigator.clipboard.writeText(walletSession.address)
+    setCopiedAddress(true)
+    window.setTimeout(() => setCopiedAddress(false), 1500)
+  }
+
+  const handleToggleWatchlist = () => {
+    if (!walletSession?.address || typeof window === 'undefined') return
+    const nextEntries = toggleWatchlistEntry(watchlistEntries, walletSession.address)
+    writeWatchlistToStorage(window.localStorage, nextEntries)
+    setWatchlistEntries(nextEntries)
+  }
+
+  const isSavedToWatchlist = walletSession?.address
+    ? isWatchlistEntry(watchlistEntries, walletSession.address)
+    : false
+
+  useEffect(() => {
+    let cancelled = false
+
+    if (!walletSession?.address) {
+      setAddressInfo(null)
+      setRecentAddressTransactions([])
+      return () => {
+        cancelled = true
+      }
+    }
+
+    Promise.all([
+      addressesApi.getSafe(138, walletSession.address),
+      addressesApi.getTransactionsSafe(138, walletSession.address, 1, 3),
+    ])
+      .then(([infoResponse, transactionsResponse]) => {
+        if (cancelled) return
+        setAddressInfo(infoResponse.ok ? infoResponse.data : null)
+        setRecentAddressTransactions(transactionsResponse.ok ? transactionsResponse.data : [])
+      })
+      .catch(() => {
+        if (cancelled) return
+        setAddressInfo(null)
+        setRecentAddressTransactions([])
+      })
+
+    return () => {
+      cancelled = true
+    }
+  }, [walletSession?.address])
+
   return (
     <main className="container mx-auto px-4 py-6 sm:py-8">
       <h1 className="mb-4 text-2xl font-bold sm:text-3xl">Wallet Tools</h1>
@@ -27,6 +140,189 @@ export default function WalletPage(props: WalletPageProps) {
           ? 'Use the explorer-served network catalog, token list, and capability metadata to connect Chain 138 (DeFi Oracle Meta Mainnet) and Ethereum Mainnet to MetaMask and other Web3 wallets.'
           : 'Use explorer-served network and token metadata to connect Chain 138 and Ethereum Mainnet wallets.'}
       </p>
+      <div className="mb-6 rounded-2xl border border-sky-200 bg-sky-50/60 p-5 dark:border-sky-900/40 dark:bg-sky-950/20">
+        <div className="flex flex-col gap-4 lg:flex-row lg:items-start lg:justify-between">
+          <div>
+            <div className="text-lg font-semibold text-gray-900 dark:text-white">Wallet session</div>
+            <p className="mt-2 text-sm leading-6 text-gray-600 dark:text-gray-400">
+              {walletSession
+                ? mode === 'guided'
+                  ? 'This wallet is connected to the same account/access session used by the header. You can jump straight into your explorer address view or the access console from here.'
+                  : 'Connected wallet session is active for explorer and access surfaces.'
+                : mode === 'guided'
+                  ? 'Connect a browser wallet to make this page useful beyond setup: copy your address, open your on-explorer address page, and continue into the access console with the same session.'
+                  : 'Connect a wallet to activate account-linked explorer actions.'}
+            </p>
+          </div>
+          <div className="flex flex-wrap gap-2">
+            <EntityBadge label={walletSession ? 'connected' : 'disconnected'} tone={walletSession ? 'success' : 'neutral'} />
+            {walletSession ? <EntityBadge label={walletSession.track} tone="info" /> : null}
+          </div>
+        </div>
+
+        <div className="mt-4 grid gap-4 lg:grid-cols-[1.2fr_0.8fr]">
+          <div className="rounded-2xl border border-white/60 bg-white/70 p-4 dark:border-white/10 dark:bg-black/10">
+            <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Current wallet</div>
+            <div className="mt-2 text-xl font-semibold text-gray-900 dark:text-white">
+              {walletSession ? shortAddress(walletSession.address) : 'No wallet connected'}
+            </div>
+            <div className="mt-1 break-all text-sm text-gray-600 dark:text-gray-400">
+              {walletSession?.address || 'Use Connect Wallet to start a browser-wallet session.'}
+            </div>
+            {walletSession?.expiresAt ? (
+              <div className="mt-2 text-sm text-gray-600 dark:text-gray-400">
+                Session expires {new Date(walletSession.expiresAt).toLocaleString()}
+              </div>
+            ) : null}
+          </div>
+
+          <div className="rounded-2xl border border-white/60 bg-white/70 p-4 dark:border-white/10 dark:bg-black/10">
+            <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Quick actions</div>
+            <div className="mt-3 flex flex-wrap gap-2">
+              {walletSession ? (
+                <>
+                  <button
+                    type="button"
+                    onClick={handleCopyAddress}
+                    className="rounded-lg border border-primary-300 px-3 py-2 text-sm font-medium text-primary-700 hover:bg-primary-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 dark:border-primary-800 dark:text-primary-300 dark:hover:bg-primary-950/20"
+                  >
+                    {copiedAddress ? 'Address copied' : 'Copy address'}
+                  </button>
+                  <Link
+                    href={`/addresses/${walletSession.address}`}
+                    className="rounded-lg border border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                  >
+                    Open address
+                  </Link>
+                  <Link
+                    href="/access"
+                    className="rounded-lg border border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                  >
+                    Open access console
+                  </Link>
+                  <button
+                    type="button"
+                    onClick={handleToggleWatchlist}
+                    className="rounded-lg border border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                  >
+                    {isSavedToWatchlist ? 'Remove from watchlist' : 'Save to watchlist'}
+                  </button>
+                  <Link
+                    href="/watchlist"
+                    className="rounded-lg border border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                  >
+                    Open watchlist
+                  </Link>
+                  <button
+                    type="button"
+                    onClick={handleDisconnectWallet}
+                    className="rounded-lg border border-red-200 px-3 py-2 text-sm font-medium text-red-700 hover:bg-red-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-red-500 dark:border-red-900/60 dark:text-red-200 dark:hover:bg-red-950/30"
+                  >
+                    Disconnect wallet
+                  </button>
+                </>
+              ) : (
+                <>
+                  <button
+                    type="button"
+                    onClick={handleConnectWallet}
+                    disabled={connectingWallet}
+                    className="rounded-lg bg-primary-600 px-3 py-2 text-sm font-semibold text-white hover:bg-primary-700 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 disabled:cursor-not-allowed disabled:opacity-70"
+                  >
+                    {connectingWallet ? 'Connecting wallet…' : 'Connect wallet'}
+                  </button>
+                  <Link
+                    href="/access"
+                    className="rounded-lg border border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary-500 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                  >
+                    Open access console
+                  </Link>
+                </>
+              )}
+            </div>
+            {walletError ? (
+              <div className="mt-3 text-sm text-red-700 dark:text-red-300">{walletError}</div>
+            ) : null}
+            {walletSession ? (
+              <div className="mt-3 text-sm text-gray-600 dark:text-gray-400">
+                {isSavedToWatchlist
+                  ? 'This wallet is already saved in the shared explorer watchlist.'
+                  : 'Save this wallet into the shared explorer watchlist to revisit it from addresses and transaction workflows.'}
+              </div>
+            ) : null}
+          </div>
+        </div>
+
+        {walletSession ? (
+          <div className="mt-4 rounded-2xl border border-white/60 bg-white/70 p-4 dark:border-white/10 dark:bg-black/10">
+            <div className="flex flex-col gap-3 lg:flex-row lg:items-start lg:justify-between">
+              <div>
+                <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">
+                  Connected Address Snapshot
+                </div>
+                <div className="mt-1 text-sm text-gray-600 dark:text-gray-400">
+                  {mode === 'guided'
+                    ? 'A quick explorer view of the connected wallet so you can jump from connection into browsing and monitoring.'
+                    : 'Current explorer snapshot for the connected wallet.'}
+                </div>
+              </div>
+              <Link href={`/addresses/${walletSession.address}`} className="text-sm font-medium text-primary-600 hover:underline">
+                Open full address page →
+              </Link>
+            </div>
+
+            <div className="mt-4 grid gap-3 sm:grid-cols-2 xl:grid-cols-4">
+              <div className="rounded-2xl border border-gray-200 bg-gray-50/70 px-4 py-3 dark:border-gray-800 dark:bg-gray-900/40">
+                <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Transactions</div>
+                <div className="mt-1 text-lg font-semibold text-gray-900 dark:text-white">
+                  {addressInfo ? addressInfo.transaction_count.toLocaleString() : 'Unknown'}
+                </div>
+              </div>
+              <div className="rounded-2xl border border-gray-200 bg-gray-50/70 px-4 py-3 dark:border-gray-800 dark:bg-gray-900/40">
+                <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Token Holdings</div>
+                <div className="mt-1 text-lg font-semibold text-gray-900 dark:text-white">
+                  {addressInfo ? addressInfo.token_count.toLocaleString() : 'Unknown'}
+                </div>
+              </div>
+              <div className="rounded-2xl border border-gray-200 bg-gray-50/70 px-4 py-3 dark:border-gray-800 dark:bg-gray-900/40">
+                <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Address Type</div>
+                <div className="mt-1 text-lg font-semibold text-gray-900 dark:text-white">
+                  {addressInfo ? (addressInfo.is_contract ? 'Contract' : 'EOA') : 'Unknown'}
+                </div>
+              </div>
+              <div className="rounded-2xl border border-gray-200 bg-gray-50/70 px-4 py-3 dark:border-gray-800 dark:bg-gray-900/40">
+                <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Recent Indexed Tx</div>
+                <div className="mt-1 text-lg font-semibold text-gray-900 dark:text-white">
+                  {recentAddressTransactions[0] ? `#${recentAddressTransactions[0].block_number}` : 'None visible'}
+                </div>
+              </div>
+            </div>
+
+            <div className="mt-4 grid gap-3 lg:grid-cols-3">
+              {recentAddressTransactions.length === 0 ? (
+                <div className="text-sm text-gray-600 dark:text-gray-400 lg:col-span-3">
+                  No recent indexed transactions are currently visible for this connected wallet.
+                </div>
+              ) : (
+                recentAddressTransactions.map((transaction) => (
+                  <Link
+                    key={transaction.hash}
+                    href={`/transactions/${transaction.hash}`}
+                    className="rounded-2xl border border-gray-200 bg-gray-50/70 px-4 py-3 text-sm hover:border-primary-300 hover:bg-primary-50/60 dark:border-gray-800 dark:bg-gray-900/40 dark:hover:border-primary-700 dark:hover:bg-primary-950/20"
+                  >
+                    <div className="font-semibold text-gray-900 dark:text-white">
+                      {transaction.hash.slice(0, 10)}...{transaction.hash.slice(-8)}
+                    </div>
+                    <div className="mt-1 text-gray-600 dark:text-gray-400">
+                      Block #{transaction.block_number.toLocaleString()}
+                    </div>
+                  </Link>
+                ))
+              )}
+            </div>
+          </div>
+        ) : null}
+      </div>
       <AddToMetaMask {...props} />
       <div className="mt-6 rounded-lg border border-gray-200 bg-white p-4 text-sm text-gray-600 dark:border-gray-700 dark:bg-gray-800 dark:text-gray-400">
         <Explain>
diff --git a/frontend/src/pages/addresses/index.tsx b/frontend/src/pages/addresses/index.tsx
index a8cf480..d78c95c 100644
--- a/frontend/src/pages/addresses/index.tsx
+++ b/frontend/src/pages/addresses/index.tsx
@@ -69,6 +69,7 @@ export default function AddressesPage({
         latestBlockNumber: initialLatestBlocks[0]?.number ?? null,
         latestBlockTimestamp: initialLatestBlocks[0]?.timestamp ?? null,
         freshness: resolveEffectiveFreshness(initialStats, initialBridgeStatus),
+        diagnostics: initialStats?.diagnostics ?? initialBridgeStatus?.data?.diagnostics ?? null,
       }),
     [chainId, initialBridgeStatus, initialLatestBlocks, initialStats, recentTransactions],
   )
diff --git a/frontend/src/pages/analytics/index.tsx b/frontend/src/pages/analytics/index.tsx
index 179a041..b55f0ca 100644
--- a/frontend/src/pages/analytics/index.tsx
+++ b/frontend/src/pages/analytics/index.tsx
@@ -2,7 +2,6 @@ import type { GetServerSideProps } from 'next'
 import AnalyticsOperationsPage from '@/components/explorer/AnalyticsOperationsPage'
 import { normalizeBlock, normalizeTransaction } from '@/services/api/blockscout'
 import {
-  normalizeExplorerStats,
   normalizeTransactionTrend,
   summarizeRecentTransactions,
   type ExplorerRecentActivitySnapshot,
@@ -13,6 +12,7 @@ import type { Block } from '@/services/api/blocks'
 import type { Transaction } from '@/services/api/transactions'
 import type { MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
 import { fetchPublicJson } from '@/utils/publicExplorer'
+import { fetchExplorerTruthContext } from '@/utils/serverExplorerContext'
 
 interface AnalyticsPageProps {
   initialStats: ExplorerStats | null
@@ -63,18 +63,17 @@ export default function AnalyticsPage(props: AnalyticsPageProps) {
 
 export const getServerSideProps: GetServerSideProps<AnalyticsPageProps> = async () => {
   const chainId = Number(process.env.NEXT_PUBLIC_CHAIN_ID || '138')
-  const [statsResult, trendResult, activityResult, blocksResult, transactionsResult, bridgeResult] = await Promise.allSettled([
-    fetchPublicJson('/api/v2/stats'),
+  const [truthContextResult, trendResult, activityResult, blocksResult, transactionsResult] = await Promise.allSettled([
+    fetchExplorerTruthContext(),
     fetchPublicJson('/api/v2/stats/charts/transactions'),
     fetchPublicJson('/api/v2/main-page/transactions'),
     fetchPublicJson('/api/v2/blocks?page=1&page_size=5'),
     fetchPublicJson('/api/v2/transactions?page=1&page_size=5'),
-    fetchPublicJson('/explorer-api/v1/track1/bridge/status'),
   ])
 
   return {
     props: {
-      initialStats: statsResult.status === 'fulfilled' ? normalizeExplorerStats(statsResult.value as never) : null,
+      initialStats: truthContextResult.status === 'fulfilled' ? truthContextResult.value.initialStats : null,
       initialTransactionTrend:
         trendResult.status === 'fulfilled' ? normalizeTransactionTrend(trendResult.value as never) : [],
       initialActivitySnapshot:
@@ -96,7 +95,7 @@ export const getServerSideProps: GetServerSideProps<AnalyticsPageProps> = async
             )
           : [],
       initialBridgeStatus:
-        bridgeResult.status === 'fulfilled' ? (bridgeResult.value as MissionControlBridgeStatusResponse) : null,
+        truthContextResult.status === 'fulfilled' ? truthContextResult.value.initialBridgeStatus : null,
     },
   }
 }
diff --git a/frontend/src/pages/blocks/index.tsx b/frontend/src/pages/blocks/index.tsx
index 9937295..35b25ea 100644
--- a/frontend/src/pages/blocks/index.tsx
+++ b/frontend/src/pages/blocks/index.tsx
@@ -116,6 +116,7 @@ export default function BlocksPage({
         latestBlockNumber: blocks[0]?.number ?? null,
         latestBlockTimestamp: blocks[0]?.timestamp ?? null,
         freshness: resolveEffectiveFreshness(initialStats, initialBridgeStatus),
+        diagnostics: initialStats?.diagnostics ?? initialBridgeStatus?.data?.diagnostics ?? null,
       }),
     [blocks, initialBridgeStatus, initialStats, recentTransactions],
   )
diff --git a/frontend/src/pages/bridge/index.tsx b/frontend/src/pages/bridge/index.tsx
index 00c5fd3..8baf4a9 100644
--- a/frontend/src/pages/bridge/index.tsx
+++ b/frontend/src/pages/bridge/index.tsx
@@ -1,10 +1,12 @@
 import type { GetStaticProps } from 'next'
 import BridgeMonitoringPage from '@/components/explorer/BridgeMonitoringPage'
 import type { MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
-import { fetchPublicJson } from '@/utils/publicExplorer'
+import type { ExplorerStats } from '@/services/api/stats'
+import { fetchExplorerTruthContext } from '@/utils/serverExplorerContext'
 
 interface BridgePageProps {
   initialBridgeStatus: MissionControlBridgeStatusResponse | null
+  initialStats: ExplorerStats | null
 }
 
 export default function BridgePage(props: BridgePageProps) {
@@ -12,13 +14,12 @@ export default function BridgePage(props: BridgePageProps) {
 }
 
 export const getStaticProps: GetStaticProps<BridgePageProps> = async () => {
-  const bridgeResult = await fetchPublicJson<MissionControlBridgeStatusResponse>(
-    '/explorer-api/v1/track1/bridge/status'
-  ).catch(() => null)
+  const truthContext = await fetchExplorerTruthContext()
 
   return {
     props: {
-      initialBridgeStatus: bridgeResult,
+      initialBridgeStatus: truthContext.initialBridgeStatus,
+      initialStats: truthContext.initialStats,
     },
   }
 }
diff --git a/frontend/src/pages/index.tsx b/frontend/src/pages/index.tsx
index 8c08dcd..dbe266f 100644
--- a/frontend/src/pages/index.tsx
+++ b/frontend/src/pages/index.tsx
@@ -2,7 +2,6 @@ import type { GetServerSideProps } from 'next'
 import HomePage from '@/components/home/HomePage'
 import { normalizeBlock } from '@/services/api/blockscout'
 import {
-  normalizeExplorerStats,
   normalizeTransactionTrend,
   summarizeRecentTransactions,
   type ExplorerRecentActivitySnapshot,
@@ -17,6 +16,7 @@ import {
 import type { Block } from '@/services/api/blocks'
 import type { Transaction } from '@/services/api/transactions'
 import { fetchPublicJson } from '@/utils/publicExplorer'
+import { fetchExplorerTruthContext } from '@/utils/serverExplorerContext'
 import { normalizeTransaction } from '@/services/api/blockscout'
 
 interface IndexPageProps {
@@ -54,13 +54,8 @@ function serializeTransactions(transactions: Transaction[]): Transaction[] {
 export const getServerSideProps: GetServerSideProps<IndexPageProps> = async () => {
   const chainId = Number(process.env.NEXT_PUBLIC_CHAIN_ID || '138')
 
-  const [statsResult, blocksResult, transactionsResult, trendResult, activityResult, bridgeResult] = await Promise.allSettled([
-    fetchPublicJson<{
-      total_blocks?: number | string | null
-      total_transactions?: number | string | null
-      total_addresses?: number | string | null
-      latest_block?: number | string | null
-    }>('/api/v2/stats'),
+  const [truthContextResult, blocksResult, transactionsResult, trendResult, activityResult] = await Promise.allSettled([
+    fetchExplorerTruthContext(),
     fetchPublicJson<{ items?: unknown[] }>('/api/v2/blocks?page=1&page_size=10'),
     fetchPublicJson<{ items?: unknown[] }>('/api/v2/transactions?page=1&page_size=5'),
     fetchPublicJson<{ chart_data?: Array<{ date?: string | null; transaction_count?: number | string | null }> }>(
@@ -74,12 +69,11 @@ export const getServerSideProps: GetServerSideProps<IndexPageProps> = async () =
         fee?: { value?: string | number | null } | string | null
       }>
     >('/api/v2/main-page/transactions'),
-    fetchPublicJson('/explorer-api/v1/track1/bridge/status'),
   ])
 
   return {
     props: {
-      initialStats: statsResult.status === 'fulfilled' ? normalizeExplorerStats(statsResult.value) : null,
+      initialStats: truthContextResult.status === 'fulfilled' ? truthContextResult.value.initialStats : null,
       initialRecentBlocks:
         blocksResult.status === 'fulfilled' && Array.isArray(blocksResult.value?.items)
           ? blocksResult.value.items.map((item) => normalizeBlock(item as never, chainId))
@@ -95,9 +89,11 @@ export const getServerSideProps: GetServerSideProps<IndexPageProps> = async () =
       initialActivitySnapshot:
         activityResult.status === 'fulfilled' ? summarizeRecentTransactions(activityResult.value) : null,
       initialBridgeStatus:
-        bridgeResult.status === 'fulfilled' ? (bridgeResult.value as MissionControlBridgeStatusResponse) : null,
+        truthContextResult.status === 'fulfilled' ? truthContextResult.value.initialBridgeStatus : null,
       initialRelaySummary:
-        bridgeResult.status === 'fulfilled' ? summarizeMissionControlRelay(bridgeResult.value as never) : null,
+        truthContextResult.status === 'fulfilled' && truthContextResult.value.initialBridgeStatus
+          ? summarizeMissionControlRelay(truthContextResult.value.initialBridgeStatus as never)
+          : null,
     },
   }
 }
diff --git a/frontend/src/pages/liquidity/index.tsx b/frontend/src/pages/liquidity/index.tsx
index db0ade0..2c41051 100644
--- a/frontend/src/pages/liquidity/index.tsx
+++ b/frontend/src/pages/liquidity/index.tsx
@@ -3,7 +3,10 @@ import LiquidityOperationsPage from '@/components/explorer/LiquidityOperationsPa
 import type { TokenListResponse } from '@/services/api/config'
 import type { InternalExecutionPlanResponse, PlannerCapabilitiesResponse } from '@/services/api/planner'
 import type { MissionControlLiquidityPool, RouteMatrixResponse } from '@/services/api/routes'
+import type { MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
+import type { ExplorerStats } from '@/services/api/stats'
 import { fetchPublicJson } from '@/utils/publicExplorer'
+import { fetchExplorerTruthContext } from '@/utils/serverExplorerContext'
 
 interface TokenPoolRecord {
   symbol: string
@@ -16,6 +19,8 @@ interface LiquidityPageProps {
   initialPlannerCapabilities: PlannerCapabilitiesResponse | null
   initialInternalPlan: InternalExecutionPlanResponse | null
   initialTokenPoolRecords: TokenPoolRecord[]
+  initialStats: ExplorerStats | null
+  initialBridgeStatus: MissionControlBridgeStatusResponse | null
 }
 
 const featuredTokenSymbols = new Set(['cUSDT', 'cUSDC', 'USDT', 'USDC', 'cXAUC', 'cXAUT'])
@@ -39,7 +44,7 @@ export default function LiquidityPage(props: LiquidityPageProps) {
 }
 
 export const getServerSideProps: GetServerSideProps<LiquidityPageProps> = async () => {
-  const [tokenListResult, routeMatrixResult, plannerCapabilitiesResult, internalPlanResult] =
+  const [tokenListResult, routeMatrixResult, plannerCapabilitiesResult, internalPlanResult, truthContext] =
     await Promise.all([
       fetchPublicJson<TokenListResponse>('/api/config/token-list').catch(() => null),
       fetchPublicJson<RouteMatrixResponse>('/token-aggregation/api/v1/routes/matrix?includeNonLive=true').catch(() => null),
@@ -52,6 +57,7 @@ export const getServerSideProps: GetServerSideProps<LiquidityPageProps> = async
         tokenOut: '0x004b63A7B5b0E06f6bB6adb4a5F9f590BF3182D1',
         amountIn: '100000000000000000',
       }).catch(() => null),
+      fetchExplorerTruthContext(),
     ])
 
   const featuredTokens = (tokenListResult?.tokens || []).filter(
@@ -79,6 +85,8 @@ export const getServerSideProps: GetServerSideProps<LiquidityPageProps> = async
       initialPlannerCapabilities: plannerCapabilitiesResult,
       initialInternalPlan: internalPlanResult,
       initialTokenPoolRecords: tokenPoolsResults,
+      initialStats: truthContext.initialStats,
+      initialBridgeStatus: truthContext.initialBridgeStatus,
     },
   }
 }
diff --git a/frontend/src/pages/operations/index.tsx b/frontend/src/pages/operations/index.tsx
index 3e69760..6ef20fc 100644
--- a/frontend/src/pages/operations/index.tsx
+++ b/frontend/src/pages/operations/index.tsx
@@ -3,7 +3,9 @@ import OperationsHubPage from '@/components/explorer/OperationsHubPage'
 import type { MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
 import type { RouteMatrixResponse } from '@/services/api/routes'
 import type { CapabilitiesResponse, NetworksConfigResponse, TokenListResponse } from '@/services/api/config'
+import type { ExplorerStats } from '@/services/api/stats'
 import { fetchPublicJson } from '@/utils/publicExplorer'
+import { fetchExplorerTruthContext } from '@/utils/serverExplorerContext'
 
 interface OperationsPageProps {
   initialBridgeStatus: MissionControlBridgeStatusResponse | null
@@ -11,6 +13,7 @@ interface OperationsPageProps {
   initialNetworksConfig: NetworksConfigResponse | null
   initialTokenList: TokenListResponse | null
   initialCapabilities: CapabilitiesResponse | null
+  initialStats: ExplorerStats | null
 }
 
 export default function OperationsPage(props: OperationsPageProps) {
@@ -18,21 +21,22 @@ export default function OperationsPage(props: OperationsPageProps) {
 }
 
 export const getStaticProps: GetStaticProps<OperationsPageProps> = async () => {
-  const [bridgeResult, routesResult, networksResult, tokenListResult, capabilitiesResult] = await Promise.all([
-    fetchPublicJson<MissionControlBridgeStatusResponse>('/explorer-api/v1/track1/bridge/status').catch(() => null),
+  const [routesResult, networksResult, tokenListResult, capabilitiesResult, truthContext] = await Promise.all([
     fetchPublicJson<RouteMatrixResponse>('/token-aggregation/api/v1/routes/matrix?includeNonLive=true').catch(() => null),
     fetchPublicJson<NetworksConfigResponse>('/api/config/networks').catch(() => null),
     fetchPublicJson<TokenListResponse>('/api/config/token-list').catch(() => null),
     fetchPublicJson<CapabilitiesResponse>('/api/config/capabilities').catch(() => null),
+    fetchExplorerTruthContext(),
   ])
 
   return {
     props: {
-      initialBridgeStatus: bridgeResult,
+      initialBridgeStatus: truthContext.initialBridgeStatus,
       initialRouteMatrix: routesResult,
       initialNetworksConfig: networksResult,
       initialTokenList: tokenListResult,
       initialCapabilities: capabilitiesResult,
+      initialStats: truthContext.initialStats,
     },
   }
 }
diff --git a/frontend/src/pages/routes/index.tsx b/frontend/src/pages/routes/index.tsx
index 82696c5..ecfdb88 100644
--- a/frontend/src/pages/routes/index.tsx
+++ b/frontend/src/pages/routes/index.tsx
@@ -1,6 +1,9 @@
 import type { GetStaticProps } from 'next'
 import RoutesMonitoringPage from '@/components/explorer/RoutesMonitoringPage'
+import type { ExplorerStats } from '@/services/api/stats'
+import type { MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
 import { fetchPublicJson } from '@/utils/publicExplorer'
+import { fetchExplorerTruthContext } from '@/utils/serverExplorerContext'
 import type {
   ExplorerNetwork,
   MissionControlLiquidityPool,
@@ -11,6 +14,8 @@ interface RoutesPageProps {
   initialRouteMatrix: RouteMatrixResponse | null
   initialNetworks: ExplorerNetwork[]
   initialPools: MissionControlLiquidityPool[]
+  initialStats: ExplorerStats | null
+  initialBridgeStatus: MissionControlBridgeStatusResponse | null
 }
 
 export default function RoutesPage(props: RoutesPageProps) {
@@ -19,12 +24,13 @@ export default function RoutesPage(props: RoutesPageProps) {
 
 export const getStaticProps: GetStaticProps<RoutesPageProps> = async () => {
   const canonicalLiquidityToken = '0x93E66202A11B1772E55407B32B44e5Cd8eda7f22'
-  const [matrixResult, networksResult, poolsResult] = await Promise.all([
+  const [matrixResult, networksResult, poolsResult, truthContext] = await Promise.all([
     fetchPublicJson<RouteMatrixResponse>('/token-aggregation/api/v1/routes/matrix?includeNonLive=true').catch(() => null),
     fetchPublicJson<{ networks?: ExplorerNetwork[] }>('/token-aggregation/api/v1/networks').catch(() => null),
     fetchPublicJson<{ pools?: MissionControlLiquidityPool[] }>(
       `/token-aggregation/api/v1/tokens/${canonicalLiquidityToken}/pools`,
     ).catch(() => null),
+    fetchExplorerTruthContext(),
   ])
 
   return {
@@ -32,6 +38,8 @@ export const getStaticProps: GetStaticProps<RoutesPageProps> = async () => {
       initialRouteMatrix: matrixResult,
       initialNetworks: networksResult?.networks || [],
       initialPools: poolsResult?.pools || [],
+      initialStats: truthContext.initialStats,
+      initialBridgeStatus: truthContext.initialBridgeStatus,
     },
     revalidate: 60,
   }
diff --git a/frontend/src/pages/transactions/index.tsx b/frontend/src/pages/transactions/index.tsx
index 63714d5..54bdc35 100644
--- a/frontend/src/pages/transactions/index.tsx
+++ b/frontend/src/pages/transactions/index.tsx
@@ -70,6 +70,7 @@ export default function TransactionsPage({
         latestBlockNumber: initialLatestBlocks[0]?.number ?? null,
         latestBlockTimestamp: initialLatestBlocks[0]?.timestamp ?? null,
         freshness: resolveEffectiveFreshness(initialStats, initialBridgeStatus),
+        diagnostics: initialStats?.diagnostics ?? initialBridgeStatus?.data?.diagnostics ?? null,
       }),
     [chainId, initialBridgeStatus, initialLatestBlocks, initialStats, transactions],
   )
diff --git a/frontend/src/pages/watchlist/index.tsx b/frontend/src/pages/watchlist/index.tsx
index 1d8a35f..ec97d2a 100644
--- a/frontend/src/pages/watchlist/index.tsx
+++ b/frontend/src/pages/watchlist/index.tsx
@@ -1,30 +1,134 @@
 'use client'
 
 import Link from 'next/link'
-import { useEffect, useState } from 'react'
+import { useEffect, useMemo, useState } from 'react'
 import { Card, Address } from '@/libs/frontend-ui-primitives'
-import {
-  readWatchlistFromStorage,
-  writeWatchlistToStorage,
-  sanitizeWatchlistEntries,
-} from '@/utils/watchlist'
 import PageIntro from '@/components/common/PageIntro'
+import { Explain, useUiMode } from '@/components/common/UiModeContext'
+import { accessApi, type WalletAccessSession } from '@/services/api/access'
+import { addressesApi, type AddressInfo, type TransactionSummary } from '@/services/api/addresses'
+import {
+  isWatchlistEntry,
+  normalizeWatchlistAddress,
+  readWatchlistFromStorage,
+  sanitizeWatchlistEntries,
+  toggleWatchlistEntry,
+  writeWatchlistToStorage,
+} from '@/utils/watchlist'
+
+type TrackedAddressSnapshot = {
+  address: string
+  info: AddressInfo | null
+  recentTransaction: TransactionSummary | null
+}
+
+function shortAddress(value?: string | null): string {
+  if (!value) return 'Unknown'
+  if (value.length <= 14) return value
+  return `${value.slice(0, 6)}...${value.slice(-4)}`
+}
 
 export default function WatchlistPage() {
+  const { mode } = useUiMode()
   const [entries, setEntries] = useState<string[]>([])
+  const [walletSession, setWalletSession] = useState<WalletAccessSession | null>(null)
+  const [snapshots, setSnapshots] = useState<Record<string, TrackedAddressSnapshot>>({})
+  const [loadingSnapshots, setLoadingSnapshots] = useState(false)
 
   useEffect(() => {
-    if (typeof window === 'undefined') {
-      return
+    if (typeof window === 'undefined') return
+
+    const syncSession = () => setWalletSession(accessApi.getStoredWalletSession())
+    const syncWatchlist = () => {
+      try {
+        setEntries(readWatchlistFromStorage(window.localStorage))
+      } catch {
+        setEntries([])
+      }
     }
 
-    try {
-      setEntries(readWatchlistFromStorage(window.localStorage))
-    } catch {
-      setEntries([])
+    syncSession()
+    syncWatchlist()
+    window.addEventListener('explorer-access-session-changed', syncSession)
+    window.addEventListener('storage', syncWatchlist)
+    return () => {
+      window.removeEventListener('explorer-access-session-changed', syncSession)
+      window.removeEventListener('storage', syncWatchlist)
     }
   }, [])
 
+  useEffect(() => {
+    let cancelled = false
+
+    if (entries.length === 0) {
+      setSnapshots({})
+      setLoadingSnapshots(false)
+      return () => {
+        cancelled = true
+      }
+    }
+
+    setLoadingSnapshots(true)
+    Promise.all(
+      entries.map(async (address) => {
+        const [infoResponse, transactionsResponse] = await Promise.all([
+          addressesApi.getSafe(138, address),
+          addressesApi.getTransactionsSafe(138, address, 1, 1),
+        ])
+
+        return {
+          address,
+          info: infoResponse.ok ? infoResponse.data : null,
+          recentTransaction: transactionsResponse.ok ? transactionsResponse.data[0] ?? null : null,
+        } satisfies TrackedAddressSnapshot
+      }),
+    )
+      .then((results) => {
+        if (cancelled) return
+        const next: Record<string, TrackedAddressSnapshot> = {}
+        for (const result of results) {
+          next[result.address.toLowerCase()] = result
+        }
+        setSnapshots(next)
+      })
+      .catch(() => {
+        if (cancelled) return
+        setSnapshots({})
+      })
+      .finally(() => {
+        if (cancelled) return
+        setLoadingSnapshots(false)
+      })
+
+    return () => {
+      cancelled = true
+    }
+  }, [entries])
+
+  const connectedWalletEntry = useMemo(
+    () => normalizeWatchlistAddress(walletSession?.address || ''),
+    [walletSession?.address],
+  )
+  const connectedWalletTracked = connectedWalletEntry
+    ? isWatchlistEntry(entries, connectedWalletEntry)
+    : false
+
+  const trackedSummaries = useMemo(() => {
+    const values = entries
+      .map((entry) => snapshots[entry.toLowerCase()])
+      .filter((value): value is TrackedAddressSnapshot => Boolean(value))
+
+    return {
+      contracts: values.filter((value) => value.info?.is_contract).length,
+      eoas: values.filter((value) => value.info && !value.info.is_contract).length,
+      withRecentTransactions: values.filter((value) => value.recentTransaction).length,
+      totalTransactions: values.reduce(
+        (sum, value) => sum + (value.info?.transaction_count || 0),
+        0,
+      ),
+    }
+  }, [entries, snapshots])
+
   const removeEntry = (address: string) => {
     setEntries((current) => {
       const next = current.filter((entry) => entry.toLowerCase() !== address.toLowerCase())
@@ -36,9 +140,7 @@ export default function WatchlistPage() {
   }
 
   const exportWatchlist = () => {
-    if (entries.length === 0) {
-      return
-    }
+    if (entries.length === 0) return
 
     try {
       const blob = new Blob([JSON.stringify(entries, null, 2)], { type: 'application/json' })
@@ -55,23 +157,36 @@ export default function WatchlistPage() {
     const file = event.target.files?.[0]
     if (!file) return
 
-    file.text().then((text) => {
-      try {
-        const next = sanitizeWatchlistEntries(JSON.parse(text))
-        setEntries(next)
-        writeWatchlistToStorage(window.localStorage, next)
-      } catch {}
-    }).catch(() => {})
+    file.text()
+      .then((text) => {
+        try {
+          const next = sanitizeWatchlistEntries(JSON.parse(text))
+          setEntries(next)
+          writeWatchlistToStorage(window.localStorage, next)
+        } catch {}
+      })
+      .catch(() => {})
 
     event.target.value = ''
   }
 
+  const toggleConnectedWallet = () => {
+    if (!connectedWalletEntry || typeof window === 'undefined') return
+    const next = toggleWatchlistEntry(entries, connectedWalletEntry)
+    writeWatchlistToStorage(window.localStorage, next)
+    setEntries(next)
+  }
+
   return (
     <div className="container mx-auto px-4 py-6 sm:py-8">
       <PageIntro
-        eyebrow="Saved Shortcuts"
+        eyebrow="Tracked Entities"
         title="Watchlist"
-        description="Keep frequently referenced Chain 138 addresses close at hand, then move back into address detail, search, or exported team handoff files from one place."
+        description={
+          mode === 'guided'
+            ? 'Track the addresses that matter most, review a quick explorer snapshot for each one, and move directly into address detail or recent indexed transactions from one shared workflow surface.'
+            : 'Track important addresses, review quick snapshots, and jump directly into explorer workflows.'
+        }
         actions={[
           { href: '/addresses', label: 'Browse addresses' },
           { href: '/search', label: 'Search explorer' },
@@ -79,10 +194,81 @@ export default function WatchlistPage() {
         ]}
       />
 
+      <Card title="Tracked Entities Overview">
+        <div className="grid gap-3 md:grid-cols-2 xl:grid-cols-4">
+          <div className="rounded-xl border border-gray-200 p-4 dark:border-gray-700">
+            <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Tracked addresses</div>
+            <div className="mt-1 text-2xl font-semibold text-gray-900 dark:text-white">{entries.length}</div>
+          </div>
+          <div className="rounded-xl border border-gray-200 p-4 dark:border-gray-700">
+            <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Recent indexed activity</div>
+            <div className="mt-1 text-2xl font-semibold text-gray-900 dark:text-white">{trackedSummaries.withRecentTransactions}</div>
+            <div className="mt-1 text-sm text-gray-600 dark:text-gray-400">Entries with at least one visible recent transaction.</div>
+          </div>
+          <div className="rounded-xl border border-gray-200 p-4 dark:border-gray-700">
+            <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">EOAs / contracts</div>
+            <div className="mt-1 text-2xl font-semibold text-gray-900 dark:text-white">
+              {trackedSummaries.eoas} / {trackedSummaries.contracts}
+            </div>
+          </div>
+          <div className="rounded-xl border border-gray-200 p-4 dark:border-gray-700">
+            <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Visible tx volume</div>
+            <div className="mt-1 text-2xl font-semibold text-gray-900 dark:text-white">
+              {trackedSummaries.totalTransactions.toLocaleString()}
+            </div>
+            <div className="mt-1 text-sm text-gray-600 dark:text-gray-400">Aggregate indexed transaction count across tracked entries.</div>
+          </div>
+        </div>
+        <Explain>
+          This view keeps tracked-address shortcuts and quick explorer evidence in one place so Guided mode can explain what each entity represents while Expert mode stays denser.
+        </Explain>
+      </Card>
+
+      <Card title="Connected Wallet">
+        {walletSession ? (
+          <div className="flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between">
+            <div>
+              <div className="text-sm font-semibold text-gray-900 dark:text-white">
+                {shortAddress(walletSession.address)}
+              </div>
+              <div className="mt-1 break-all text-sm text-gray-600 dark:text-gray-400">
+                {walletSession.address}
+              </div>
+              <div className="mt-2 text-sm text-gray-600 dark:text-gray-400">
+                {connectedWalletTracked
+                  ? 'This connected wallet is already part of your tracked entity set.'
+                  : 'Add this connected wallet into the tracked entity set for faster monitoring and navigation.'}
+              </div>
+            </div>
+            <div className="flex flex-wrap gap-2">
+              <button
+                type="button"
+                onClick={toggleConnectedWallet}
+                className="rounded-lg bg-primary-600 px-3 py-2 text-sm font-semibold text-white hover:bg-primary-700"
+              >
+                {connectedWalletTracked ? 'Remove from watchlist' : 'Track connected wallet'}
+              </button>
+              <Link
+                href={`/addresses/${walletSession.address}`}
+                className="rounded-lg border border-gray-300 px-3 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+              >
+                Open address
+              </Link>
+            </div>
+          </div>
+        ) : (
+          <div className="text-sm text-gray-600 dark:text-gray-400">
+            Connect a wallet from the <Link href="/wallet" className="text-primary-600 hover:underline">wallet tools page</Link> to pin your own address into tracked workflows.
+          </div>
+        )}
+      </Card>
+
       <Card title="Saved Addresses">
         <div className="mb-4 flex flex-col gap-3 md:flex-row md:items-center md:justify-between">
           <p className="text-sm text-gray-600 dark:text-gray-400">
-            {entries.length === 0 ? 'No saved entries yet.' : `${entries.length} saved ${entries.length === 1 ? 'address' : 'addresses'}.`}
+            {entries.length === 0
+              ? 'No saved entries yet.'
+              : `${entries.length} saved ${entries.length === 1 ? 'address' : 'addresses'}.`}
           </p>
           <div className="flex flex-wrap gap-2">
             <label className="cursor-pointer rounded-lg bg-gray-100 px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-200 dark:bg-gray-800 dark:text-gray-200 dark:hover:bg-gray-700">
@@ -113,20 +299,76 @@ export default function WatchlistPage() {
           </div>
         ) : (
           <div className="space-y-3">
-            {entries.map((entry) => (
-              <div key={entry} className="flex flex-col gap-2 rounded-lg border border-gray-200 p-3 dark:border-gray-700 md:flex-row md:items-center md:justify-between">
-                <Link href={`/addresses/${entry}`} className="text-primary-600 hover:underline">
-                  <Address address={entry} showCopy={false} />
-                </Link>
-                <button
-                  type="button"
-                  onClick={() => removeEntry(entry)}
-                  className="rounded-lg bg-gray-100 px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-200 dark:bg-gray-800 dark:text-gray-200 dark:hover:bg-gray-700"
+            {entries.map((entry) => {
+              const snapshot = snapshots[entry.toLowerCase()]
+              const info = snapshot?.info || null
+              const recentTransaction = snapshot?.recentTransaction || null
+
+              return (
+                <div
+                  key={entry}
+                  className="rounded-lg border border-gray-200 p-4 dark:border-gray-700"
                 >
-                  Remove
-                </button>
-              </div>
-            ))}
+                  <div className="flex flex-col gap-3 lg:flex-row lg:items-start lg:justify-between">
+                    <div className="min-w-0">
+                      <Link href={`/addresses/${entry}`} className="text-primary-600 hover:underline">
+                        <Address address={entry} showCopy={false} />
+                      </Link>
+                      <div className="mt-2 grid gap-3 sm:grid-cols-2 xl:grid-cols-4">
+                        <div>
+                          <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Type</div>
+                          <div className="mt-1 text-sm text-gray-900 dark:text-white">
+                            {info ? (info.is_contract ? 'Contract' : 'EOA') : loadingSnapshots ? 'Loading…' : 'Unknown'}
+                          </div>
+                        </div>
+                        <div>
+                          <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Indexed txs</div>
+                          <div className="mt-1 text-sm text-gray-900 dark:text-white">
+                            {info ? info.transaction_count.toLocaleString() : loadingSnapshots ? 'Loading…' : 'Unknown'}
+                          </div>
+                        </div>
+                        <div>
+                          <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Token holdings</div>
+                          <div className="mt-1 text-sm text-gray-900 dark:text-white">
+                            {info ? info.token_count.toLocaleString() : loadingSnapshots ? 'Loading…' : 'Unknown'}
+                          </div>
+                        </div>
+                        <div>
+                          <div className="text-xs font-semibold uppercase tracking-wide text-gray-500 dark:text-gray-400">Recent visible tx</div>
+                          <div className="mt-1 text-sm text-gray-900 dark:text-white">
+                            {recentTransaction ? `#${recentTransaction.block_number.toLocaleString()}` : loadingSnapshots ? 'Loading…' : 'None visible'}
+                          </div>
+                        </div>
+                      </div>
+                    </div>
+
+                    <div className="flex flex-wrap gap-2">
+                      <Link
+                        href={`/addresses/${entry}`}
+                        className="rounded-lg border border-gray-300 px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-50 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                      >
+                        Open address
+                      </Link>
+                      {recentTransaction ? (
+                        <Link
+                          href={`/transactions/${recentTransaction.hash}`}
+                          className="rounded-lg border border-gray-300 px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-50 dark:border-gray-700 dark:text-gray-200 dark:hover:bg-gray-900/60"
+                        >
+                          Latest tx
+                        </Link>
+                      ) : null}
+                      <button
+                        type="button"
+                        onClick={() => removeEntry(entry)}
+                        className="rounded-lg bg-gray-100 px-3 py-1.5 text-sm text-gray-700 hover:bg-gray-200 dark:bg-gray-800 dark:text-gray-200 dark:hover:bg-gray-700"
+                      >
+                        Remove
+                      </button>
+                    </div>
+                  </div>
+                </div>
+              )
+            })}
           </div>
         )}
       </Card>
diff --git a/frontend/src/services/api/missionControl.ts b/frontend/src/services/api/missionControl.ts
index 74415e6..220040b 100644
--- a/frontend/src/services/api/missionControl.ts
+++ b/frontend/src/services/api/missionControl.ts
@@ -1,4 +1,5 @@
 import { getExplorerApiBase } from './blockscout'
+import type { ExplorerFreshnessDiagnostics } from './stats'
 
 export interface MissionControlRelaySummary {
   text: string
@@ -99,6 +100,7 @@ export interface MissionControlBridgeStatusResponse {
     status?: string
     checked_at?: string
     freshness?: unknown
+    diagnostics?: ExplorerFreshnessDiagnostics | null
     sampling?: {
       stats_generated_at?: string | null
       rpc_probe_at?: string | null
@@ -150,6 +152,11 @@ function describeRelayStatus(snapshot: MissionControlRelaySnapshot, status: stri
       ? 'underfunded queued release'
       : 'underfunded release'
   }
+  if (snapshot.last_error?.scope === 'bridge_inventory_probe') {
+    return snapshot.queue?.size && snapshot.queue.size > 0
+      ? 'inventory check deferred'
+      : 'inventory check pending'
+  }
   if (status === 'paused' && snapshot.monitoring?.delivery_enabled === false) {
     return snapshot.queue?.size && snapshot.queue.size > 0 ? 'delivery paused (queueing)' : 'delivery paused'
   }
diff --git a/frontend/src/services/api/stats.test.ts b/frontend/src/services/api/stats.test.ts
index 219e1eb..9eddb5c 100644
--- a/frontend/src/services/api/stats.test.ts
+++ b/frontend/src/services/api/stats.test.ts
@@ -26,6 +26,7 @@ describe('normalizeExplorerStats', () => {
       freshness: null,
       completeness: null,
       sampling: null,
+      diagnostics: null,
     })
   })
 
@@ -48,6 +49,7 @@ describe('normalizeExplorerStats', () => {
       freshness: null,
       completeness: null,
       sampling: null,
+      diagnostics: null,
     })
   })
 
diff --git a/frontend/src/services/api/stats.ts b/frontend/src/services/api/stats.ts
index a8edff6..ec8cb6e 100644
--- a/frontend/src/services/api/stats.ts
+++ b/frontend/src/services/api/stats.ts
@@ -12,6 +12,7 @@ export interface ExplorerStats {
   freshness: ExplorerFreshnessSnapshot | null
   completeness: ExplorerStatsCompleteness | null
   sampling: ExplorerStatsSampling | null
+  diagnostics: ExplorerFreshnessDiagnostics | null
 }
 
 export interface ExplorerFreshnessReference {
@@ -33,6 +34,22 @@ export interface ExplorerFreshnessSnapshot {
   latest_non_empty_block: ExplorerFreshnessReference
 }
 
+export interface ExplorerFreshnessDiagnostics {
+  tx_visibility_state?: string | null
+  activity_state?: string | null
+  explanation?: string | null
+  tx_lag_blocks?: number | null
+  tx_lag_seconds?: number | null
+  recent_block_sample_size?: number | null
+  recent_non_empty_blocks?: number | null
+  recent_transactions?: number | null
+  latest_non_empty_block_from_block_feed?: ExplorerFreshnessReference | null
+  source?: string | null
+  confidence?: string | null
+  provenance?: string | null
+  completeness?: string | null
+}
+
 export interface ExplorerStatsCompleteness {
   transactions_feed?: string | null
   blocks_feed?: string | null
@@ -87,6 +104,21 @@ interface RawExplorerStats {
   } | null
   completeness?: ExplorerStatsCompleteness | null
   sampling?: ExplorerStatsSampling | null
+  diagnostics?: {
+    tx_visibility_state?: string | null
+    activity_state?: string | null
+    explanation?: string | null
+    tx_lag_blocks?: number | string | null
+    tx_lag_seconds?: number | string | null
+    recent_block_sample_size?: number | string | null
+    recent_non_empty_blocks?: number | string | null
+    recent_transactions?: number | string | null
+    latest_non_empty_block_from_block_feed?: RawExplorerFreshnessReference | null
+    source?: string | null
+    confidence?: string | null
+    provenance?: string | null
+    completeness?: string | null
+  } | null
 }
 
 interface RawExplorerFreshnessReference {
@@ -135,6 +167,34 @@ function normalizeFreshnessSnapshot(raw?: RawExplorerStats['freshness'] | null):
   }
 }
 
+function normalizeFreshnessDiagnostics(raw?: RawExplorerStats['diagnostics'] | null): ExplorerFreshnessDiagnostics | null {
+  if (!raw) return null
+  return {
+    tx_visibility_state: raw.tx_visibility_state || null,
+    activity_state: raw.activity_state || null,
+    explanation: raw.explanation || null,
+    tx_lag_blocks: raw.tx_lag_blocks == null || raw.tx_lag_blocks === '' ? null : toNumber(raw.tx_lag_blocks),
+    tx_lag_seconds: raw.tx_lag_seconds == null || raw.tx_lag_seconds === '' ? null : toNumber(raw.tx_lag_seconds),
+    recent_block_sample_size:
+      raw.recent_block_sample_size == null || raw.recent_block_sample_size === ''
+        ? null
+        : toNumber(raw.recent_block_sample_size),
+    recent_non_empty_blocks:
+      raw.recent_non_empty_blocks == null || raw.recent_non_empty_blocks === ''
+        ? null
+        : toNumber(raw.recent_non_empty_blocks),
+    recent_transactions:
+      raw.recent_transactions == null || raw.recent_transactions === ''
+        ? null
+        : toNumber(raw.recent_transactions),
+    latest_non_empty_block_from_block_feed: normalizeFreshnessReference(raw.latest_non_empty_block_from_block_feed),
+    source: raw.source || null,
+    confidence: raw.confidence || null,
+    provenance: raw.provenance || null,
+    completeness: raw.completeness || null,
+  }
+}
+
 export function normalizeExplorerStats(raw: RawExplorerStats): ExplorerStats {
   const latestBlockValue = raw.latest_block
   const averageBlockTimeValue = raw.average_block_time
@@ -169,6 +229,7 @@ export function normalizeExplorerStats(raw: RawExplorerStats): ExplorerStats {
     freshness: normalizeFreshnessSnapshot(raw.freshness),
     completeness: raw.completeness || null,
     sampling: raw.sampling || null,
+    diagnostics: normalizeFreshnessDiagnostics(raw.diagnostics),
   }
 }
 
diff --git a/frontend/src/utils/activityContext.ts b/frontend/src/utils/activityContext.ts
index 0c187be..dab0a00 100644
--- a/frontend/src/utils/activityContext.ts
+++ b/frontend/src/utils/activityContext.ts
@@ -1,6 +1,6 @@
 import type { Block } from '@/services/api/blocks'
 import type { Transaction } from '@/services/api/transactions'
-import type { ExplorerFreshnessSnapshot } from '@/services/api/stats'
+import type { ExplorerFreshnessDiagnostics, ExplorerFreshnessSnapshot } from '@/services/api/stats'
 
 export type ChainActivityState = 'active' | 'low' | 'inactive' | 'unknown'
 
@@ -34,8 +34,10 @@ export function summarizeChainActivity(input: {
   latestBlockNumber?: number | null
   latestBlockTimestamp?: string | null
   freshness?: ExplorerFreshnessSnapshot | null
+  diagnostics?: ExplorerFreshnessDiagnostics | null
 }): ChainActivityContext {
   const freshness = input.freshness || null
+  const diagnostics = input.diagnostics || null
   const blocks = Array.isArray(input.blocks) ? input.blocks : []
   const transactions = Array.isArray(input.transactions) ? input.transactions : []
 
@@ -55,9 +57,11 @@ export function summarizeChainActivity(input: {
     transactions.find((transaction) => transaction.block_number === latestTransaction) ?? transactions[0] ?? null
 
   const nonEmptyBlock =
+    diagnostics?.latest_non_empty_block_from_block_feed?.block_number ??
     freshness?.latest_non_empty_block.block_number ??
     sortDescending(blocks.filter((block) => block.transaction_count > 0).map((block) => block.number))[0] ?? latestTransaction
   const nonEmptyBlockTimestamp =
+    diagnostics?.latest_non_empty_block_from_block_feed?.timestamp ??
     freshness?.latest_non_empty_block.timestamp ??
     blocks.find((block) => block.number === nonEmptyBlock)?.timestamp ??
     latestTransactionRecord?.created_at ??
@@ -76,24 +80,39 @@ export function summarizeChainActivity(input: {
     })()
 
   const gap = freshness?.latest_non_empty_block.distance_from_head ??
+    diagnostics?.tx_lag_blocks ??
     (latestBlock != null && latestTransaction != null
       ? Math.max(0, latestBlock - latestTransaction)
       : null)
 
-  const state: ChainActivityState =
-    latestTransactionAgeSeconds == null
-      ? 'unknown'
-      : latestTransactionAgeSeconds <= 15 * 60
-        ? 'active'
-        : latestTransactionAgeSeconds <= 3 * 60 * 60
-          ? 'low'
-          : 'inactive'
+  const state: ChainActivityState = (() => {
+    switch (diagnostics?.activity_state) {
+      case 'active':
+        return 'active'
+      case 'sparse_activity':
+      case 'quiet_chain':
+        return 'low'
+      case 'fresh_head_stale_transaction_visibility':
+        return 'inactive'
+      case 'limited_observability':
+        return 'unknown'
+      default:
+        return latestTransactionAgeSeconds == null
+          ? 'unknown'
+          : latestTransactionAgeSeconds <= 15 * 60
+            ? 'active'
+            : latestTransactionAgeSeconds <= 3 * 60 * 60
+              ? 'low'
+              : 'inactive'
+    }
+  })()
 
   const headIsIdle =
-    gap != null &&
-    gap > 0 &&
-    latestTransactionAgeSeconds != null &&
-    latestTransactionAgeSeconds > 0
+    diagnostics?.activity_state === 'quiet_chain' ||
+    (gap != null &&
+      gap > 0 &&
+      latestTransactionAgeSeconds != null &&
+      latestTransactionAgeSeconds > 0)
 
   return {
     latest_block_number: latestBlock,
diff --git a/frontend/src/utils/explorerFreshness.test.ts b/frontend/src/utils/explorerFreshness.test.ts
index 7628819..33ad2bd 100644
--- a/frontend/src/utils/explorerFreshness.test.ts
+++ b/frontend/src/utils/explorerFreshness.test.ts
@@ -1,5 +1,9 @@
 import { describe, expect, it } from 'vitest'
-import { resolveEffectiveFreshness, summarizeFreshnessConfidence } from './explorerFreshness'
+import {
+  resolveEffectiveFreshness,
+  resolveFreshnessSourceLabel,
+  summarizeFreshnessConfidence,
+} from './explorerFreshness'
 
 describe('resolveEffectiveFreshness', () => {
   it('prefers stats freshness when it is present', () => {
@@ -129,4 +133,43 @@ describe('resolveEffectiveFreshness', () => {
       'Feed: snapshot',
     ])
   })
+
+  it('describes whether freshness comes from stats or mission-control fallback', () => {
+    expect(
+      resolveFreshnessSourceLabel(
+        {
+          total_blocks: 1,
+          total_transactions: 2,
+          total_addresses: 3,
+          latest_block: 4,
+          average_block_time_ms: null,
+          average_gas_price_gwei: null,
+          network_utilization_percentage: null,
+          transactions_today: null,
+          freshness: {
+            chain_head: { block_number: 10 },
+            latest_indexed_block: { block_number: 10 },
+            latest_indexed_transaction: { block_number: 9 },
+            latest_non_empty_block: { block_number: 9 },
+          },
+          completeness: null,
+          sampling: null,
+        },
+        null,
+      ),
+    ).toBe('Based on public stats and indexed explorer freshness.')
+
+    expect(
+      resolveFreshnessSourceLabel(
+        null,
+        {
+          data: {
+            freshness: {
+              chain_head: { block_number: 20 },
+            },
+          },
+        },
+      ),
+    ).toBe('Based on mission-control freshness and latest visible public data.')
+  })
 })
diff --git a/frontend/src/utils/serverExplorerContext.ts b/frontend/src/utils/serverExplorerContext.ts
new file mode 100644
index 0000000..40459dc
--- /dev/null
+++ b/frontend/src/utils/serverExplorerContext.ts
@@ -0,0 +1,20 @@
+import type { MissionControlBridgeStatusResponse } from '@/services/api/missionControl'
+import { normalizeExplorerStats, type ExplorerStats } from '@/services/api/stats'
+import { fetchPublicJson } from './publicExplorer'
+
+export interface ExplorerTruthContext {
+  initialStats: ExplorerStats | null
+  initialBridgeStatus: MissionControlBridgeStatusResponse | null
+}
+
+export async function fetchExplorerTruthContext(): Promise<ExplorerTruthContext> {
+  const [statsResult, bridgeResult] = await Promise.all([
+    fetchPublicJson('/api/v2/stats').catch(() => null),
+    fetchPublicJson<MissionControlBridgeStatusResponse>('/explorer-api/v1/track1/bridge/status').catch(() => null),
+  ])
+
+  return {
+    initialStats: statsResult ? normalizeExplorerStats(statsResult as never) : null,
+    initialBridgeStatus: bridgeResult,
+  }
+}
diff --git a/frontend/src/utils/watchlist.test.ts b/frontend/src/utils/watchlist.test.ts
index 91ea6cd..8958629 100644
--- a/frontend/src/utils/watchlist.test.ts
+++ b/frontend/src/utils/watchlist.test.ts
@@ -4,6 +4,7 @@ import {
   normalizeWatchlistAddress,
   parseStoredWatchlist,
   sanitizeWatchlistEntries,
+  toggleWatchlistEntry,
 } from './watchlist'
 
 describe('watchlist utils', () => {
@@ -39,4 +40,10 @@ describe('watchlist utils', () => {
       isWatchlistEntry(entries, '0x1234567890123456789012345678901234567890'.toUpperCase()),
     ).toBe(true)
   })
+
+  it('toggles watchlist entries on and off case-insensitively', () => {
+    const address = '0x1234567890123456789012345678901234567890'
+    expect(toggleWatchlistEntry([], address)).toEqual([address])
+    expect(toggleWatchlistEntry([address], address.toUpperCase())).toEqual([])
+  })
 })
diff --git a/frontend/src/utils/watchlist.ts b/frontend/src/utils/watchlist.ts
index 9eca526..119db5e 100644
--- a/frontend/src/utils/watchlist.ts
+++ b/frontend/src/utils/watchlist.ts
@@ -71,3 +71,16 @@ export function isWatchlistEntry(entries: string[], address: string) {
 
   return entries.some((entry) => entry.toLowerCase() === normalized.toLowerCase())
 }
+
+export function toggleWatchlistEntry(entries: string[], address: string) {
+  const normalized = normalizeWatchlistAddress(address)
+  if (!normalized) {
+    return sanitizeWatchlistEntries(entries)
+  }
+
+  if (isWatchlistEntry(entries, normalized)) {
+    return entries.filter((entry) => entry.toLowerCase() !== normalized.toLowerCase())
+  }
+
+  return sanitizeWatchlistEntries([...entries, normalized])
+}