diff --git a/.gitignore b/.gitignore
index bb7024c5..dff37800 100644
--- a/.gitignore
+++ b/.gitignore
@@ -145,3 +145,8 @@ docs/.venv/
 *.temp
 tmp/
 temp/
+
+# ----------------------
+# Runtime Data
+# ----------------------
+data/ai/bgp-briefs/
diff --git a/VERSION b/VERSION
index 4b8c9a55..7a8169a2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.24.4
+0.24.5
diff --git a/backend/app/api/v1/ai.py b/backend/app/api/v1/ai.py
index 490d356b..364db973 100644
--- a/backend/app/api/v1/ai.py
+++ b/backend/app/api/v1/ai.py
@@ -1,15 +1,27 @@
 from uuid import uuid4
 
-from fastapi import APIRouter, Depends, Request, Response
+from fastapi import APIRouter, Depends, HTTPException, Request, Response
+from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.security import get_current_user
+from app.db.session import get_db
 from app.models.user import User
 from app.schemas.ai import (
     AIProviderStatusResponse,
+    BGPBriefRequest,
+    BGPBriefRecordResponse,
+    BGPBriefRecordSummary,
     SituationalAnalysisRequest,
     SituationalAnalysisResponse,
 )
 from app.services.ai_client import AIProviderClient, get_ai_provider_client
+from app.services.bgp_ai_brief import build_bgp_brief_request
+from app.services.bgp_ai_brief_store import (
+    get_bgp_brief_record,
+    get_latest_bgp_brief_record,
+    list_bgp_brief_records,
+    save_bgp_brief_record,
+)
 
 router = APIRouter()
 
@@ -37,3 +49,53 @@ async def analyze_situational_awareness(
     request_id = request.headers.get("X-Request-ID") or str(uuid4())
     response.headers["X-Request-ID"] = request_id
     return await provider_client.analyze(payload, request_id=request_id)
+
+
+@router.get("/bgp/briefs", response_model=list[BGPBriefRecordSummary])
+async def list_saved_bgp_briefs(
+    current_user: User = Depends(get_current_user),
+):
+    return list_bgp_brief_records()
+
+
+@router.get("/bgp/briefs/latest", response_model=BGPBriefRecordResponse | None)
+async def get_latest_saved_bgp_brief(
+    current_user: User = Depends(get_current_user),
+):
+    return get_latest_bgp_brief_record()
+
+
+@router.get("/bgp/briefs/{brief_id}", response_model=BGPBriefRecordResponse)
+async def get_saved_bgp_brief(
+    brief_id: str,
+    current_user: User = Depends(get_current_user),
+):
+    record = get_bgp_brief_record(brief_id)
+    if record is None:
+        raise HTTPException(status_code=404, detail="BGP brief not found")
+    return record
+
+
+@router.post("/bgp/brief", response_model=BGPBriefRecordResponse)
+async def analyze_bgp_brief(
+    payload: BGPBriefRequest,
+    request: Request,
+    response: Response,
+    current_user: User = Depends(get_current_user),
+    provider_client: AIProviderClient = Depends(get_ai_provider_client),
+    db: AsyncSession = Depends(get_db),
+):
+    request_id = request.headers.get("X-Request-ID") or str(uuid4())
+    response.headers["X-Request-ID"] = request_id
+
+    brief_request = await build_bgp_brief_request(
+        db,
+        incident_limit=payload.incident_limit,
+        anomaly_limit=payload.anomaly_limit,
+        collector_limit=payload.collector_limit,
+    )
+    brief_request.preferred_model = payload.preferred_model
+    brief_request.thinking = payload.thinking
+
+    analysis = await provider_client.analyze(brief_request, request_id=request_id)
+    return save_bgp_brief_record(analysis, request_id=request_id)
diff --git a/backend/app/api/v1/bgp.py b/backend/app/api/v1/bgp.py
index 26067b1e..ff32dd83 100644
--- a/backend/app/api/v1/bgp.py
+++ b/backend/app/api/v1/bgp.py
@@ -22,16 +22,161 @@ def _parse_dt(value: Optional[str]) -> Optional[datetime]:
     if not value:
         return None
     return datetime.fromisoformat(value.replace("Z", "+00:00"))
+def _event_filters(
+    *,
+    prefix: Optional[str],
+    origin_asn: Optional[int],
+    peer_asn: Optional[int],
+    collector: Optional[str],
+    event_type: Optional[str],
+    source: Optional[str],
+    time_from: Optional[datetime],
+    time_to: Optional[datetime],
+):
+    filters = [BGPObservation.source.in_(BGP_SOURCES)]
+    if source:
+        filters.append(BGPObservation.source == source)
+    if prefix:
+        filters.append(BGPObservation.prefix == prefix)
+    if origin_asn is not None:
+        filters.append(BGPObservation.origin_asn == origin_asn)
+    if peer_asn is not None:
+        filters.append(BGPObservation.peer_asn == peer_asn)
+    if collector:
+        filters.append(BGPObservation.collector == collector)
+    if event_type:
+        filters.append(BGPObservation.event_type == event_type)
+    if time_from:
+        filters.append(BGPObservation.observed_at >= time_from)
+    if time_to:
+        filters.append(BGPObservation.observed_at <= time_to)
+    return filters
 
 
-def _matches_time(value: Optional[datetime], time_from: Optional[datetime], time_to: Optional[datetime]) -> bool:
-    if value is None:
-        return False
-    if time_from and value < time_from:
-        return False
-    if time_to and value > time_to:
-        return False
-    return True
+def _anomaly_filters(
+    *,
+    severity: Optional[str],
+    anomaly_type: Optional[str],
+    status: Optional[str],
+    prefix: Optional[str],
+    origin_asn: Optional[int],
+    time_from: Optional[datetime],
+    time_to: Optional[datetime],
+):
+    filters = []
+    if severity:
+        filters.append(BGPAnomaly.severity == severity)
+    if anomaly_type:
+        filters.append(BGPAnomaly.anomaly_type == anomaly_type)
+    if status:
+        filters.append(BGPAnomaly.status == status)
+    if prefix:
+        filters.append(BGPAnomaly.prefix == prefix)
+    if origin_asn is not None:
+        filters.append(BGPAnomaly.origin_asn == origin_asn)
+    if time_from:
+        filters.append(BGPAnomaly.created_at >= time_from)
+    if time_to:
+        filters.append(BGPAnomaly.created_at <= time_to)
+    return filters
+
+
+def _incident_filters(
+    *,
+    severity: Optional[str],
+    incident_type: Optional[str],
+    status: Optional[str],
+):
+    filters = []
+    if severity:
+        filters.append(BGPIncident.severity == severity)
+    if incident_type:
+        filters.append(BGPIncident.incident_type == incident_type)
+    if status:
+        filters.append(BGPIncident.status == status)
+    return filters
+
+
+async def _build_event_summary_payload(db: AsyncSession) -> dict:
+    base_filters = [BGPObservation.source.in_(BGP_SOURCES)]
+
+    total_result = await db.execute(
+        select(func.count(BGPObservation.id)).where(*base_filters)
+    )
+    collectors_result = await db.execute(
+        select(func.count(func.distinct(BGPObservation.collector))).where(
+            *base_filters, BGPObservation.collector.isnot(None)
+        )
+    )
+    prefixes_result = await db.execute(
+        select(func.count(func.distinct(BGPObservation.prefix))).where(
+            *base_filters, BGPObservation.prefix.isnot(None)
+        )
+    )
+    type_result = await db.execute(
+        select(BGPObservation.event_type, func.count(BGPObservation.id))
+        .where(*base_filters)
+        .group_by(BGPObservation.event_type)
+    )
+
+    return {
+        "total": total_result.scalar() or 0,
+        "collector_count": collectors_result.scalar() or 0,
+        "prefix_count": prefixes_result.scalar() or 0,
+        "by_type": {row[0]: row[1] for row in type_result.fetchall()},
+    }
+
+
+async def _build_anomaly_summary_payload(db: AsyncSession) -> dict:
+    total_result = await db.execute(select(func.count(BGPAnomaly.id)))
+    type_result = await db.execute(
+        select(BGPAnomaly.anomaly_type, func.count(BGPAnomaly.id))
+        .group_by(BGPAnomaly.anomaly_type)
+        .order_by(func.count(BGPAnomaly.id).desc())
+    )
+    severity_result = await db.execute(
+        select(BGPAnomaly.severity, func.count(BGPAnomaly.id))
+        .group_by(BGPAnomaly.severity)
+        .order_by(func.count(BGPAnomaly.id).desc())
+    )
+    status_result = await db.execute(
+        select(BGPAnomaly.status, func.count(BGPAnomaly.id))
+        .group_by(BGPAnomaly.status)
+        .order_by(func.count(BGPAnomaly.id).desc())
+    )
+
+    return {
+        "total": total_result.scalar() or 0,
+        "by_type": {row[0]: row[1] for row in type_result.fetchall()},
+        "by_severity": {row[0]: row[1] for row in severity_result.fetchall()},
+        "by_status": {row[0]: row[1] for row in status_result.fetchall()},
+    }
+
+
+async def _build_incident_summary_payload(db: AsyncSession) -> dict:
+    total_result = await db.execute(select(func.count(BGPIncident.id)))
+    type_result = await db.execute(
+        select(BGPIncident.incident_type, func.count(BGPIncident.id))
+        .group_by(BGPIncident.incident_type)
+        .order_by(func.count(BGPIncident.id).desc())
+    )
+    severity_result = await db.execute(
+        select(BGPIncident.severity, func.count(BGPIncident.id))
+        .group_by(BGPIncident.severity)
+        .order_by(func.count(BGPIncident.id).desc())
+    )
+    status_result = await db.execute(
+        select(BGPIncident.status, func.count(BGPIncident.id))
+        .group_by(BGPIncident.status)
+        .order_by(func.count(BGPIncident.id).desc())
+    )
+
+    return {
+        "total": total_result.scalar() or 0,
+        "by_type": {row[0]: row[1] for row in type_result.fetchall()},
+        "by_severity": {row[0]: row[1] for row in severity_result.fetchall()},
+        "by_status": {row[0]: row[1] for row in status_result.fetchall()},
+    }
 
 
 @router.get("/events")
@@ -49,41 +194,36 @@ async def list_bgp_events(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    stmt = (
-        select(BGPObservation)
-        .where(BGPObservation.source.in_(BGP_SOURCES))
-        .order_by(BGPObservation.observed_at.desc(), BGPObservation.id.desc())
-    )
-    if source:
-        stmt = stmt.where(BGPObservation.source == source)
-
-    result = await db.execute(stmt)
-    records = result.scalars().all()
     dt_from = _parse_dt(time_from)
     dt_to = _parse_dt(time_to)
-
-    filtered = []
-    for record in records:
-        if prefix and record.prefix != prefix:
-            continue
-        if origin_asn is not None and record.origin_asn != origin_asn:
-            continue
-        if peer_asn is not None and record.peer_asn != peer_asn:
-            continue
-        if collector and record.collector != collector:
-            continue
-        if event_type and record.event_type != event_type:
-            continue
-        if (dt_from or dt_to) and not _matches_time(record.observed_at, dt_from, dt_to):
-            continue
-        filtered.append(record)
-
+    filters = _event_filters(
+        prefix=prefix,
+        origin_asn=origin_asn,
+        peer_asn=peer_asn,
+        collector=collector,
+        event_type=event_type,
+        source=source,
+        time_from=dt_from,
+        time_to=dt_to,
+    )
     offset = (page - 1) * page_size
+    count_result = await db.execute(
+        select(func.count(BGPObservation.id)).where(*filters)
+    )
+    data_result = await db.execute(
+        select(BGPObservation)
+        .where(*filters)
+        .order_by(BGPObservation.observed_at.desc(), BGPObservation.id.desc())
+        .offset(offset)
+        .limit(page_size)
+    )
+    records = data_result.scalars().all()
+
     return {
-        "total": len(filtered),
+        "total": count_result.scalar() or 0,
         "page": page,
         "page_size": page_size,
-        "data": [record.to_dict() for record in filtered[offset : offset + page_size]],
+        "data": [record.to_dict() for record in records],
     }
 
 
@@ -92,21 +232,7 @@ async def get_bgp_event_summary(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    result = await db.execute(select(BGPObservation).where(BGPObservation.source.in_(BGP_SOURCES)))
-    records = result.scalars().all()
-
-    collectors = sorted({record.collector for record in records if record.collector})
-    prefixes = sorted({record.prefix for record in records if record.prefix})
-    by_type: dict[str, int] = {}
-    for record in records:
-        by_type[record.event_type] = by_type.get(record.event_type, 0) + 1
-
-    return {
-        "total": len(records),
-        "collector_count": len(collectors),
-        "prefix_count": len(prefixes),
-        "by_type": by_type,
-    }
+    return await _build_event_summary_payload(db)
 
 
 @router.get("/collectors")
@@ -138,6 +264,32 @@ async def get_bgp_collector_summary(
     }
 
 
+@router.get("/overview/summary")
+async def get_bgp_overview_summary(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    event_summary = await _build_event_summary_payload(db)
+    anomaly_summary = await _build_anomaly_summary_payload(db)
+    incident_summary = await _build_incident_summary_payload(db)
+    collectors = await build_bgp_collector_coverage(db, source_filter=BGP_SOURCES)
+    active_collectors = [item for item in collectors if item["observation_count"] > 0]
+
+    return {
+        "incidentSummary": incident_summary,
+        "anomalySummary": anomaly_summary,
+        "eventSummary": event_summary,
+        "collectorSummary": {
+            "total": len(collectors),
+            "active_collectors": len(active_collectors),
+            "observed_prefixes": sum(item["prefix_count"] for item in active_collectors),
+            "observed_origins": sum(item["origin_asn_count"] for item in active_collectors),
+            "recent_24h_events": sum(item["recent_24h_observation_count"] for item in active_collectors),
+            "recent_7d_events": sum(item["recent_7d_observation_count"] for item in active_collectors),
+        },
+    }
+
+
 @router.get("/events/{event_id}")
 async def get_bgp_event(
     event_id: int,
@@ -164,31 +316,35 @@ async def list_bgp_anomalies(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    stmt = select(BGPAnomaly).order_by(BGPAnomaly.created_at.desc(), BGPAnomaly.id.desc())
-    if severity:
-        stmt = stmt.where(BGPAnomaly.severity == severity)
-    if anomaly_type:
-        stmt = stmt.where(BGPAnomaly.anomaly_type == anomaly_type)
-    if status:
-        stmt = stmt.where(BGPAnomaly.status == status)
-    if prefix:
-        stmt = stmt.where(BGPAnomaly.prefix == prefix)
-    if origin_asn is not None:
-        stmt = stmt.where(BGPAnomaly.origin_asn == origin_asn)
-
-    result = await db.execute(stmt)
-    records = result.scalars().all()
     dt_from = _parse_dt(time_from)
     dt_to = _parse_dt(time_to)
-    if dt_from or dt_to:
-        records = [record for record in records if _matches_time(record.created_at, dt_from, dt_to)]
-
+    filters = _anomaly_filters(
+        severity=severity,
+        anomaly_type=anomaly_type,
+        status=status,
+        prefix=prefix,
+        origin_asn=origin_asn,
+        time_from=dt_from,
+        time_to=dt_to,
+    )
     offset = (page - 1) * page_size
+    total_result = await db.execute(
+        select(func.count(BGPAnomaly.id)).where(*filters)
+    )
+    data_result = await db.execute(
+        select(BGPAnomaly)
+        .where(*filters)
+        .order_by(BGPAnomaly.created_at.desc(), BGPAnomaly.id.desc())
+        .offset(offset)
+        .limit(page_size)
+    )
+    records = data_result.scalars().all()
+
     return {
-        "total": len(records),
+        "total": total_result.scalar() or 0,
         "page": page,
         "page_size": page_size,
-        "data": [record.to_dict() for record in records[offset : offset + page_size]],
+        "data": [record.to_dict() for record in records],
     }
 
 
@@ -197,29 +353,7 @@ async def get_bgp_anomaly_summary(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    total_result = await db.execute(select(func.count(BGPAnomaly.id)))
-    type_result = await db.execute(
-        select(BGPAnomaly.anomaly_type, func.count(BGPAnomaly.id))
-        .group_by(BGPAnomaly.anomaly_type)
-        .order_by(func.count(BGPAnomaly.id).desc())
-    )
-    severity_result = await db.execute(
-        select(BGPAnomaly.severity, func.count(BGPAnomaly.id))
-        .group_by(BGPAnomaly.severity)
-        .order_by(func.count(BGPAnomaly.id).desc())
-    )
-    status_result = await db.execute(
-        select(BGPAnomaly.status, func.count(BGPAnomaly.id))
-        .group_by(BGPAnomaly.status)
-        .order_by(func.count(BGPAnomaly.id).desc())
-    )
-
-    return {
-        "total": total_result.scalar() or 0,
-        "by_type": {row[0]: row[1] for row in type_result.fetchall()},
-        "by_severity": {row[0]: row[1] for row in severity_result.fetchall()},
-        "by_status": {row[0]: row[1] for row in status_result.fetchall()},
-    }
+    return await _build_anomaly_summary_payload(db)
 
 
 @router.get("/anomalies/{anomaly_id}")
@@ -244,22 +378,29 @@ async def list_bgp_incidents(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    stmt = select(BGPIncident).order_by(BGPIncident.created_at.desc(), BGPIncident.id.desc())
-    if severity:
-        stmt = stmt.where(BGPIncident.severity == severity)
-    if incident_type:
-        stmt = stmt.where(BGPIncident.incident_type == incident_type)
-    if status:
-        stmt = stmt.where(BGPIncident.status == status)
-
-    result = await db.execute(stmt)
-    records = result.scalars().all()
+    filters = _incident_filters(
+        severity=severity,
+        incident_type=incident_type,
+        status=status,
+    )
     offset = (page - 1) * page_size
+    total_result = await db.execute(
+        select(func.count(BGPIncident.id)).where(*filters)
+    )
+    data_result = await db.execute(
+        select(BGPIncident)
+        .where(*filters)
+        .order_by(BGPIncident.created_at.desc(), BGPIncident.id.desc())
+        .offset(offset)
+        .limit(page_size)
+    )
+    records = data_result.scalars().all()
+
     return {
-        "total": len(records),
+        "total": total_result.scalar() or 0,
         "page": page,
         "page_size": page_size,
-        "data": [record.to_dict() for record in records[offset : offset + page_size]],
+        "data": [record.to_dict() for record in records],
     }
 
 
@@ -268,29 +409,7 @@ async def get_bgp_incident_summary(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    total_result = await db.execute(select(func.count(BGPIncident.id)))
-    type_result = await db.execute(
-        select(BGPIncident.incident_type, func.count(BGPIncident.id))
-        .group_by(BGPIncident.incident_type)
-        .order_by(func.count(BGPIncident.id).desc())
-    )
-    severity_result = await db.execute(
-        select(BGPIncident.severity, func.count(BGPIncident.id))
-        .group_by(BGPIncident.severity)
-        .order_by(func.count(BGPIncident.id).desc())
-    )
-    status_result = await db.execute(
-        select(BGPIncident.status, func.count(BGPIncident.id))
-        .group_by(BGPIncident.status)
-        .order_by(func.count(BGPIncident.id).desc())
-    )
-
-    return {
-        "total": total_result.scalar() or 0,
-        "by_type": {row[0]: row[1] for row in type_result.fetchall()},
-        "by_severity": {row[0]: row[1] for row in severity_result.fetchall()},
-        "by_status": {row[0]: row[1] for row in status_result.fetchall()},
-    }
+    return await _build_incident_summary_payload(db)
 
 
 @router.get("/incidents/{incident_id}")
diff --git a/backend/app/schemas/ai.py b/backend/app/schemas/ai.py
index 27d1046e..3bcdac9c 100644
--- a/backend/app/schemas/ai.py
+++ b/backend/app/schemas/ai.py
@@ -21,6 +21,14 @@ class SituationalAnalysisRequest(BaseModel):
     thinking: dict[str, Any] | None = None
 
 
+class BGPBriefRequest(BaseModel):
+    incident_limit: int = Field(default=5, ge=1, le=10)
+    anomaly_limit: int = Field(default=6, ge=1, le=12)
+    collector_limit: int = Field(default=5, ge=1, le=10)
+    preferred_model: str | None = Field(default=None, max_length=200)
+    thinking: dict[str, Any] | None = None
+
+
 class SituationalAnalysisResponse(BaseModel):
     provider: str
     model: str
@@ -31,6 +39,19 @@ class SituationalAnalysisResponse(BaseModel):
     raw_response: dict[str, Any] = Field(default_factory=dict)
 
 
+class BGPBriefRecordSummary(BaseModel):
+    id: str
+    title: str
+    provider: str
+    model: str
+    request_id: str | None = None
+    generated_at: str
+
+
+class BGPBriefRecordResponse(BGPBriefRecordSummary):
+    content_markdown: str
+
+
 class AIProviderStatusResponse(BaseModel):
     provider: str
     api: str | None = None
diff --git a/backend/app/services/bgp_ai_brief.py b/backend/app/services/bgp_ai_brief.py
new file mode 100644
index 00000000..998b440e
--- /dev/null
+++ b/backend/app/services/bgp_ai_brief.py
@@ -0,0 +1,147 @@
+from __future__ import annotations
+
+from collections import Counter
+
+from sqlalchemy import func, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.v1.bgp import BGP_SOURCES
+from app.models.bgp_anomaly import BGPAnomaly
+from app.models.bgp_incident import BGPIncident
+from app.models.bgp_observation import BGPObservation
+from app.schemas.ai import SituationalAnalysisRequest
+from app.services.bgp_collectors import build_bgp_collector_coverage
+
+
+def _format_counter(counter: dict[str, int], empty_text: str = "无") -> str:
+    if not counter:
+        return empty_text
+    return "，".join(f"{key} {value}" for key, value in counter.items())
+
+
+def _severity_rank(value: str | None) -> int:
+    order = {
+        "critical": 0,
+        "high": 1,
+        "medium": 2,
+        "low": 3,
+        "info": 4,
+    }
+    return order.get((value or "").lower(), 99)
+
+
+async def build_bgp_brief_request(
+    db: AsyncSession,
+    *,
+    incident_limit: int = 5,
+    anomaly_limit: int = 6,
+    collector_limit: int = 5,
+) -> SituationalAnalysisRequest:
+    incidents_result = await db.execute(
+        select(BGPIncident)
+        .order_by(BGPIncident.created_at.desc(), BGPIncident.id.desc())
+        .limit(max(incident_limit, 1))
+    )
+    anomalies_result = await db.execute(
+        select(BGPAnomaly)
+        .order_by(BGPAnomaly.created_at.desc(), BGPAnomaly.id.desc())
+        .limit(max(anomaly_limit, 1))
+    )
+    observations_result = await db.execute(
+        select(BGPObservation).where(BGPObservation.source.in_(BGP_SOURCES))
+    )
+    incident_count_result = await db.execute(select(func.count(BGPIncident.id)))
+    anomaly_count_result = await db.execute(select(func.count(BGPAnomaly.id)))
+
+    incidents = incidents_result.scalars().all()
+    anomalies = anomalies_result.scalars().all()
+    observations = observations_result.scalars().all()
+    collectors = await build_bgp_collector_coverage(db, source_filter=BGP_SOURCES)
+
+    total_incidents = incident_count_result.scalar() or 0
+    total_anomalies = anomaly_count_result.scalar() or 0
+    total_observations = len(observations)
+    active_collectors = [item for item in collectors if item["observation_count"] > 0]
+
+    incident_status_counts = Counter((item.status or "unknown") for item in incidents)
+    incident_severity_counts = Counter((item.severity or "unknown") for item in incidents)
+    incident_type_counts = Counter((item.incident_type or "unknown") for item in incidents)
+    anomaly_type_counts = Counter((item.anomaly_type or "unknown") for item in anomalies)
+    event_type_counts = Counter((item.event_type or "unknown") for item in observations)
+
+    top_collectors = sorted(
+        active_collectors,
+        key=lambda item: (
+            -int(item["recent_24h_observation_count"]),
+            -int(item["observation_count"]),
+            str(item["collector"]),
+        ),
+    )[: max(collector_limit, 1)]
+
+    observations_lines: list[str] = [
+        f"当前共有 {total_incidents} 起 BGP incidents、{total_anomalies} 条 anomalies、{total_observations} 条原始观测事件。",
+        f"活跃观测站 {len(active_collectors)} 个；近 24 小时事件数合计 {sum(int(item['recent_24h_observation_count']) for item in active_collectors)}。",
+        f"最近 incidents 严重度分布：{_format_counter(dict(sorted(incident_severity_counts.items(), key=lambda item: _severity_rank(item[0]))))}。",
+        f"最近 incidents 状态分布：{_format_counter(dict(incident_status_counts))}。",
+        f"最近 incidents 类型分布：{_format_counter(dict(incident_type_counts.most_common(5)))}。",
+        f"最近 anomalies 类型分布：{_format_counter(dict(anomaly_type_counts.most_common(6)))}。",
+        f"观测事件类型分布：{_format_counter(dict(event_type_counts.most_common(6)))}。",
+    ]
+
+    if incidents:
+        observations_lines.append(
+            "最近 incident 摘要：" + "；".join(
+                [
+                    f"{item.incident_type} / {item.severity} / {item.status}"
+                    f" / 前缀 {', '.join(item.affected_prefixes[:2]) if item.affected_prefixes else '-'}"
+                    f" / 观测站 {len(item.affected_collectors or [])} 个"
+                    for item in incidents
+                ]
+            )
+        )
+
+    if anomalies:
+        observations_lines.append(
+            "最近 anomaly 摘要：" + "；".join(
+                [
+                    f"{item.anomaly_type} / {item.severity}"
+                    f" / 前缀 {item.prefix or '-'}"
+                    f" / ASN {item.new_origin_asn or item.origin_asn or '-'}"
+                    for item in anomalies
+                ]
+            )
+        )
+
+    if top_collectors:
+        observations_lines.append(
+            "重点观测站：" + "；".join(
+                [
+                    f"{item['collector']} ({', '.join([part for part in [item.get('city'), item.get('country')] if part]) or '未知位置'})"
+                    f" / 近24h {item['recent_24h_observation_count']} 条"
+                    f" / 前缀 {item['prefix_count']} 个"
+                    for item in top_collectors
+                ]
+            )
+        )
+
+    return SituationalAnalysisRequest(
+        title="BGP 态势 AI 简报",
+        objective="基于当前 BGP incidents、anomalies、原始观测事件与观测站覆盖情况，生成一份面向操作员的简明态势简报，突出当前风险、证据和优先动作。",
+        observations=observations_lines,
+        constraints=[
+            "明确区分事实、推断与建议。",
+            "优先指出需要立即关注的高严重度 incident 或异常模式。",
+            "结论应服务值班排障，不要写成泛泛的模型演示文案。",
+            "如果证据不足，要明确指出缺失数据。",
+        ],
+        context={
+            "source": "bgp-overview",
+            "incident_total": total_incidents,
+            "anomaly_total": total_anomalies,
+            "observation_total": total_observations,
+            "active_collectors": len(active_collectors),
+            "top_incident_types": dict(incident_type_counts.most_common(5)),
+            "top_anomaly_types": dict(anomaly_type_counts.most_common(6)),
+            "top_event_types": dict(event_type_counts.most_common(6)),
+        },
+    )
diff --git a/backend/app/services/bgp_ai_brief_store.py b/backend/app/services/bgp_ai_brief_store.py
new file mode 100644
index 00000000..66eb2302
--- /dev/null
+++ b/backend/app/services/bgp_ai_brief_store.py
@@ -0,0 +1,147 @@
+from __future__ import annotations
+
+import json
+from dataclasses import dataclass
+from datetime import UTC, datetime
+from pathlib import Path
+from uuid import uuid4
+
+from app.core.config import ROOT_DIR
+from app.schemas.ai import BGPBriefRecordResponse, BGPBriefRecordSummary, SituationalAnalysisResponse
+
+
+_BRIEF_STORAGE_DIR = ROOT_DIR / "data" / "ai" / "bgp-briefs"
+_METADATA_PREFIX = "<!-- planet-bgp-brief-meta "
+_METADATA_SUFFIX = " -->"
+_BRIEF_TITLE = "BGP AI 简报"
+
+
+@dataclass(slots=True)
+class _StoredBrief:
+    id: str
+    title: str
+    provider: str
+    model: str
+    request_id: str | None
+    generated_at: str
+    content_markdown: str
+    path: Path
+
+
+def _ensure_storage_dir() -> Path:
+    _BRIEF_STORAGE_DIR.mkdir(parents=True, exist_ok=True)
+    return _BRIEF_STORAGE_DIR
+
+
+def _build_metadata_line(metadata: dict[str, str | None]) -> str:
+    return f"{_METADATA_PREFIX}{json.dumps(metadata, ensure_ascii=False)}{_METADATA_SUFFIX}"
+
+
+def _parse_brief_file(path: Path) -> _StoredBrief | None:
+    try:
+        raw_text = path.read_text(encoding="utf-8")
+    except OSError:
+        return None
+
+    first_line, separator, remainder = raw_text.partition("\n")
+    if not separator or not first_line.startswith(_METADATA_PREFIX) or not first_line.endswith(_METADATA_SUFFIX):
+        return None
+
+    metadata_payload = first_line[len(_METADATA_PREFIX) : -len(_METADATA_SUFFIX)]
+
+    try:
+        metadata = json.loads(metadata_payload)
+    except json.JSONDecodeError:
+        return None
+
+    return _StoredBrief(
+        id=str(metadata.get("id") or path.stem),
+        title=str(metadata.get("title") or _BRIEF_TITLE),
+        provider=str(metadata.get("provider") or "-"),
+        model=str(metadata.get("model") or "-"),
+        request_id=metadata.get("request_id"),
+        generated_at=str(metadata.get("generated_at") or datetime.fromtimestamp(path.stat().st_mtime, UTC).isoformat()),
+        content_markdown=remainder.lstrip("\n"),
+        path=path,
+    )
+
+
+def list_bgp_brief_records(limit: int = 50) -> list[BGPBriefRecordSummary]:
+    storage_dir = _ensure_storage_dir()
+    records: list[_StoredBrief] = []
+
+    for path in storage_dir.glob("*.md"):
+        parsed = _parse_brief_file(path)
+        if parsed is not None:
+            records.append(parsed)
+
+    records.sort(key=lambda item: item.generated_at, reverse=True)
+
+    return [
+        BGPBriefRecordSummary(
+            id=item.id,
+            title=item.title,
+            provider=item.provider,
+            model=item.model,
+            request_id=item.request_id,
+            generated_at=item.generated_at,
+        )
+        for item in records[: max(limit, 1)]
+    ]
+
+
+def get_bgp_brief_record(brief_id: str) -> BGPBriefRecordResponse | None:
+    path = _ensure_storage_dir() / f"{brief_id}.md"
+    parsed = _parse_brief_file(path)
+    if parsed is None:
+        return None
+
+    return BGPBriefRecordResponse(
+        id=parsed.id,
+        title=parsed.title,
+        provider=parsed.provider,
+        model=parsed.model,
+        request_id=parsed.request_id,
+        generated_at=parsed.generated_at,
+        content_markdown=parsed.content_markdown,
+    )
+
+
+def get_latest_bgp_brief_record() -> BGPBriefRecordResponse | None:
+    summaries = list_bgp_brief_records(limit=1)
+    if not summaries:
+        return None
+    return get_bgp_brief_record(summaries[0].id)
+
+
+def save_bgp_brief_record(
+    analysis: SituationalAnalysisResponse,
+    *,
+    request_id: str | None,
+    generated_at: datetime | None = None,
+) -> BGPBriefRecordResponse:
+    created_at = generated_at or datetime.now(UTC)
+    brief_id = f"{created_at.strftime('%Y%m%dT%H%M%SZ')}-{uuid4().hex[:8]}"
+    path = _ensure_storage_dir() / f"{brief_id}.md"
+
+    metadata = {
+        "id": brief_id,
+        "title": _BRIEF_TITLE,
+        "provider": analysis.provider,
+        "model": analysis.model,
+        "request_id": request_id,
+        "generated_at": created_at.isoformat(),
+    }
+
+    markdown_text = f"{_build_metadata_line(metadata)}\n\n{analysis.content.rstrip()}\n"
+    path.write_text(markdown_text, encoding="utf-8")
+
+    return BGPBriefRecordResponse(
+        id=brief_id,
+        title=_BRIEF_TITLE,
+        provider=analysis.provider,
+        model=analysis.model,
+        request_id=request_id,
+        generated_at=created_at.isoformat(),
+        content_markdown=analysis.content,
+    )
diff --git a/backend/app/services/bgp_collectors.py b/backend/app/services/bgp_collectors.py
index 56a7a209..7cb96f75 100644
--- a/backend/app/services/bgp_collectors.py
+++ b/backend/app/services/bgp_collectors.py
@@ -6,7 +6,7 @@ from collections import defaultdict
 from datetime import UTC, datetime, timedelta
 from typing import Any
 
-from sqlalchemy import select
+from sqlalchemy import case, distinct, func, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.time import to_iso8601_utc
@@ -14,6 +14,16 @@ from app.models.bgp_observation import BGPObservation
 from app.services.collectors.bgp_common import RIPE_RIS_COLLECTOR_COORDS
 
 
+def _collector_base_filters(source_filter: tuple[str, ...] | None) -> list[Any]:
+    filters: list[Any] = [
+        BGPObservation.collector.isnot(None),
+        func.length(func.btrim(BGPObservation.collector)) > 0,
+    ]
+    if source_filter:
+        filters.append(BGPObservation.source.in_(source_filter))
+    return filters
+
+
 async def build_bgp_collector_coverage(
     db: AsyncSession,
     *,
@@ -24,88 +34,148 @@ async def build_bgp_collector_coverage(
     recent_24h_threshold = now - timedelta(hours=24)
     recent_7d_threshold = now - timedelta(days=7)
 
-    stmt = select(BGPObservation).order_by(BGPObservation.observed_at.desc(), BGPObservation.id.desc())
-    if source_filter:
-        stmt = stmt.where(BGPObservation.source.in_(source_filter))
+    filters = _collector_base_filters(source_filter)
+    country_expr = func.nullif(BGPObservation.collector_geo["country"].astext, "")
+    city_expr = func.nullif(BGPObservation.collector_geo["city"].astext, "")
 
-    result = await db.execute(stmt)
-    records = list(result.scalars().all())
+    aggregate_stmt = (
+        select(
+            BGPObservation.collector.label("collector"),
+            func.count(BGPObservation.id).label("observation_count"),
+            func.count(distinct(BGPObservation.prefix)).label("prefix_count"),
+            func.count(distinct(BGPObservation.origin_asn)).label("origin_asn_count"),
+            func.count(distinct(BGPObservation.peer_asn)).label("peer_asn_count"),
+            func.sum(case((BGPObservation.observed_at >= recent_15m_threshold, 1), else_=0)).label("recent_15m_observation_count"),
+            func.sum(case((BGPObservation.observed_at >= recent_24h_threshold, 1), else_=0)).label("recent_24h_observation_count"),
+            func.sum(case((BGPObservation.observed_at >= recent_7d_threshold, 1), else_=0)).label("recent_7d_observation_count"),
+            func.count(distinct(case((BGPObservation.observed_at >= recent_15m_threshold, BGPObservation.prefix), else_=None))).label("recent_15m_prefix_count"),
+            func.count(distinct(case((BGPObservation.observed_at >= recent_24h_threshold, BGPObservation.prefix), else_=None))).label("recent_24h_prefix_count"),
+            func.count(distinct(case((BGPObservation.observed_at >= recent_7d_threshold, BGPObservation.prefix), else_=None))).label("recent_7d_prefix_count"),
+            func.max(BGPObservation.observed_at).label("latest_observed_at"),
+        )
+        .where(*filters)
+        .group_by(BGPObservation.collector)
+    )
+    aggregate_rows = (await db.execute(aggregate_stmt)).all()
+
+    latest_subquery = (
+        select(
+            BGPObservation.collector.label("collector"),
+            BGPObservation.event_type.label("latest_event_type"),
+            country_expr.label("country"),
+            city_expr.label("city"),
+            func.row_number()
+            .over(
+                partition_by=BGPObservation.collector,
+                order_by=(BGPObservation.observed_at.desc(), BGPObservation.id.desc()),
+            )
+            .label("rn"),
+        )
+        .where(*filters)
+        .subquery()
+    )
+    latest_rows = (
+        await db.execute(
+            select(
+                latest_subquery.c.collector,
+                latest_subquery.c.latest_event_type,
+                latest_subquery.c.country,
+                latest_subquery.c.city,
+            ).where(latest_subquery.c.rn == 1)
+        )
+    ).all()
+
+    event_counts_subquery = (
+        select(
+            BGPObservation.collector.label("collector"),
+            BGPObservation.event_type.label("event_type"),
+            func.count(BGPObservation.id).label("count"),
+            func.row_number()
+            .over(
+                partition_by=BGPObservation.collector,
+                order_by=(func.count(BGPObservation.id).desc(), BGPObservation.event_type.asc()),
+            )
+            .label("rn"),
+        )
+        .where(*filters)
+        .group_by(BGPObservation.collector, BGPObservation.event_type)
+        .subquery()
+    )
+    top_event_rows = (
+        await db.execute(
+            select(
+                event_counts_subquery.c.collector,
+                event_counts_subquery.c.event_type,
+                event_counts_subquery.c.count,
+            ).where(event_counts_subquery.c.rn <= 3)
+        )
+    ).all()
+
+    scope_rows = (
+        await db.execute(
+            select(
+                BGPObservation.collector.label("collector"),
+                country_expr.label("country"),
+                city_expr.label("city"),
+            )
+            .where(*filters)
+            .distinct()
+        )
+    ).all()
+
+    latest_by_collector = {
+        row.collector: {
+            "latest_event_type": row.latest_event_type,
+            "country": row.country,
+            "city": row.city,
+        }
+        for row in latest_rows
+    }
+
+    scope_by_collector: dict[str, dict[str, set[str]]] = defaultdict(lambda: {"countries": set(), "cities": set()})
+    for row in scope_rows:
+        if row.country:
+            scope_by_collector[row.collector]["countries"].add(row.country)
+        if row.city:
+            scope_by_collector[row.collector]["cities"].add(row.city)
+
+    top_events_by_collector: dict[str, list[dict[str, Any]]] = defaultdict(list)
+    for row in top_event_rows:
+        top_events_by_collector[row.collector].append(
+            {"event_type": row.event_type, "count": row.count}
+        )
 
     by_collector: dict[str, dict[str, Any]] = {}
-    for record in records:
-        collector = str(record.collector or "").strip()
-        if not collector:
-            continue
+    for row in aggregate_rows:
+        collector = row.collector
+        latest = latest_by_collector.get(collector, {})
+        fallback_location = RIPE_RIS_COLLECTOR_COORDS.get(collector, {})
+        scope = scope_by_collector.get(collector, {"countries": set(), "cities": set()})
 
-        coverage = by_collector.get(collector)
-        if coverage is None:
-            location = record.collector_geo or RIPE_RIS_COLLECTOR_COORDS.get(collector, {})
-            coverage = {
-                "collector": collector,
-                "city": location.get("city"),
-                "country": location.get("country"),
-                "latitude": location.get("latitude"),
-                "longitude": location.get("longitude"),
-                "observation_count": 0,
-                "prefixes": set(),
-                "origin_asns": set(),
-                "peer_asns": set(),
-                "event_types": defaultdict(int),
-                "countries": set(),
-                "cities": set(),
-                "recent_15m_observation_count": 0,
-                "recent_24h_observation_count": 0,
-                "recent_7d_observation_count": 0,
-                "recent_15m_prefixes": set(),
-                "recent_24h_prefixes": set(),
-                "recent_7d_prefixes": set(),
-                "latest_observed_at": None,
-                "latest_event_type": None,
-            }
-            by_collector[collector] = coverage
-
-        coverage["observation_count"] += 1
-        if record.prefix:
-            coverage["prefixes"].add(record.prefix)
-        if record.origin_asn is not None:
-            coverage["origin_asns"].add(record.origin_asn)
-        if record.peer_asn is not None:
-            coverage["peer_asns"].add(record.peer_asn)
-        if record.event_type:
-            coverage["event_types"][record.event_type] += 1
-
-        observed_at = record.observed_at
-        if observed_at is not None:
-            aware_observed_at = (
-                observed_at.astimezone(UTC)
-                if observed_at.tzinfo
-                else observed_at.replace(tzinfo=UTC)
-            )
-            if aware_observed_at >= recent_15m_threshold:
-                coverage["recent_15m_observation_count"] += 1
-                if record.prefix:
-                    coverage["recent_15m_prefixes"].add(record.prefix)
-            if aware_observed_at >= recent_24h_threshold:
-                coverage["recent_24h_observation_count"] += 1
-                if record.prefix:
-                    coverage["recent_24h_prefixes"].add(record.prefix)
-            if aware_observed_at >= recent_7d_threshold:
-                coverage["recent_7d_observation_count"] += 1
-                if record.prefix:
-                    coverage["recent_7d_prefixes"].add(record.prefix)
-
-        geo = record.collector_geo or {}
-        if geo.get("country"):
-            coverage["countries"].add(geo["country"])
-        if geo.get("city"):
-            coverage["cities"].add(geo["city"])
-
-        current_latest = coverage["latest_observed_at"]
-        if current_latest is None or (
-            record.observed_at is not None and record.observed_at > current_latest
-        ):
-            coverage["latest_observed_at"] = record.observed_at
-            coverage["latest_event_type"] = record.event_type
+        by_collector[collector] = {
+            "collector": collector,
+            "city": latest.get("city") or fallback_location.get("city"),
+            "country": latest.get("country") or fallback_location.get("country"),
+            "latitude": fallback_location.get("latitude"),
+            "longitude": fallback_location.get("longitude"),
+            "observation_count": row.observation_count or 0,
+            "prefix_count": row.prefix_count or 0,
+            "origin_asn_count": row.origin_asn_count or 0,
+            "peer_asn_count": row.peer_asn_count or 0,
+            "recent_15m_observation_count": row.recent_15m_observation_count or 0,
+            "recent_24h_observation_count": row.recent_24h_observation_count or 0,
+            "recent_7d_observation_count": row.recent_7d_observation_count or 0,
+            "recent_15m_prefix_count": row.recent_15m_prefix_count or 0,
+            "recent_24h_prefix_count": row.recent_24h_prefix_count or 0,
+            "recent_7d_prefix_count": row.recent_7d_prefix_count or 0,
+            "top_event_types": top_events_by_collector.get(collector, []),
+            "latest_observed_at": to_iso8601_utc(row.latest_observed_at),
+            "latest_event_type": latest.get("latest_event_type"),
+            "baseline_scope": {
+                "countries": sorted(scope["countries"]),
+                "cities": sorted(scope["cities"]),
+            },
+        }
 
     for collector, location in RIPE_RIS_COLLECTOR_COORDS.items():
         if collector in by_collector:
@@ -117,57 +187,22 @@ async def build_bgp_collector_coverage(
             "latitude": location.get("latitude"),
             "longitude": location.get("longitude"),
             "observation_count": 0,
-            "prefixes": set(),
-            "origin_asns": set(),
-            "peer_asns": set(),
-            "event_types": defaultdict(int),
-            "countries": {location.get("country")} if location.get("country") else set(),
-            "cities": {location.get("city")} if location.get("city") else set(),
+            "prefix_count": 0,
+            "origin_asn_count": 0,
+            "peer_asn_count": 0,
             "recent_15m_observation_count": 0,
             "recent_24h_observation_count": 0,
             "recent_7d_observation_count": 0,
-            "recent_15m_prefixes": set(),
-            "recent_24h_prefixes": set(),
-            "recent_7d_prefixes": set(),
+            "recent_15m_prefix_count": 0,
+            "recent_24h_prefix_count": 0,
+            "recent_7d_prefix_count": 0,
+            "top_event_types": [],
             "latest_observed_at": None,
             "latest_event_type": None,
+            "baseline_scope": {
+                "countries": [location["country"]] if location.get("country") else [],
+                "cities": [location["city"]] if location.get("city") else [],
+            },
         }
 
-    results: list[dict[str, Any]] = []
-    for collector in sorted(by_collector.keys()):
-        item = by_collector[collector]
-        top_event_types = sorted(
-            item["event_types"].items(),
-            key=lambda pair: (-pair[1], pair[0]),
-        )
-        results.append(
-            {
-                "collector": item["collector"],
-                "city": item["city"],
-                "country": item["country"],
-                "latitude": item["latitude"],
-                "longitude": item["longitude"],
-                "observation_count": item["observation_count"],
-                "prefix_count": len(item["prefixes"]),
-                "origin_asn_count": len(item["origin_asns"]),
-                "peer_asn_count": len(item["peer_asns"]),
-                "recent_15m_observation_count": item["recent_15m_observation_count"],
-                "recent_24h_observation_count": item["recent_24h_observation_count"],
-                "recent_7d_observation_count": item["recent_7d_observation_count"],
-                "recent_15m_prefix_count": len(item["recent_15m_prefixes"]),
-                "recent_24h_prefix_count": len(item["recent_24h_prefixes"]),
-                "recent_7d_prefix_count": len(item["recent_7d_prefixes"]),
-                "top_event_types": [
-                    {"event_type": event_type, "count": count}
-                    for event_type, count in top_event_types[:3]
-                ],
-                "latest_observed_at": to_iso8601_utc(item["latest_observed_at"]),
-                "latest_event_type": item["latest_event_type"],
-                "baseline_scope": {
-                    "countries": sorted(country for country in item["countries"] if country),
-                    "cities": sorted(city for city in item["cities"] if city),
-                },
-            }
-        )
-
-    return results
+    return [by_collector[collector] for collector in sorted(by_collector.keys())]
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index cb3fc110..bb1d8f5f 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -7,6 +7,35 @@ This project follows the repository versioning rule:
 - `feature` -> `+0.1.0`
 - `bugfix` -> `+0.0.1`
 
+## 0.24.5
+
+Released: 2026-04-10
+
+### Highlights
+
+- Turned the first BGP AI brief flow into a persistent operator-facing feature with saved Markdown history, tabbed review, and backend-driven fact assembly, while also cutting BGP page load cost by switching the hottest routes away from Python-side full-table scans.
+
+### Added
+
+- Added [backend/app/services/bgp_ai_brief.py](/home/ray/dev/linkong/planet/backend/app/services/bgp_ai_brief.py), building evidence-first BGP brief prompts from incidents, anomalies, observations, and collector coverage instead of relying on manual Playground inputs.
+- Added [backend/app/services/bgp_ai_brief_store.py](/home/ray/dev/linkong/planet/backend/app/services/bgp_ai_brief_store.py), persisting generated BGP AI briefs as Markdown files and exposing a stable record shape for history browsing.
+- Added [frontend/src/components/MarkdownRenderer/MarkdownRenderer.tsx](/home/ray/dev/linkong/planet/frontend/src/components/MarkdownRenderer/MarkdownRenderer.tsx), giving the frontend a lightweight built-in Markdown renderer for saved AI brief content without introducing a new dependency.
+- Added [backend/app/api/v1/bgp.py](/home/ray/dev/linkong/planet/backend/app/api/v1/bgp.py) `GET /bgp/overview/summary`, consolidating the BGP overview summary hot path into a dedicated aggregate endpoint for the BGP workspace.
+
+### Improved
+
+- Improved [backend/app/api/v1/ai.py](/home/ray/dev/linkong/planet/backend/app/api/v1/ai.py) and [backend/app/schemas/ai.py](/home/ray/dev/linkong/planet/backend/app/schemas/ai.py) by extending the AI API from one-off analysis calls to saved BGP brief history endpoints, latest-brief lookup, and persisted brief responses.
+- Improved [frontend/src/pages/BGP/BGP.tsx](/home/ray/dev/linkong/planet/frontend/src/pages/BGP/BGP.tsx) by moving `AI 简报` into the trailing tab, loading tab data lazily, loading brief history only on demand, and wiring saved brief selection plus regeneration into the operator workflow.
+- Improved [frontend/src/services/situational-awareness/http-gateway.ts](/home/ray/dev/linkong/planet/frontend/src/services/situational-awareness/http-gateway.ts), [frontend/src/services/situational-awareness/port.ts](/home/ray/dev/linkong/planet/frontend/src/services/situational-awareness/port.ts), [frontend/src/services/situational-awareness/mock-gateway.ts](/home/ray/dev/linkong/planet/frontend/src/services/situational-awareness/mock-gateway.ts), and [frontend/src/services/situational-awareness/types.ts](/home/ray/dev/linkong/planet/frontend/src/services/situational-awareness/types.ts) by splitting BGP summary, list, and brief-history fetches into more granular gateway methods and de-duplicating in-flight requests on the hot path.
+- Improved [frontend/src/index.css](/home/ray/dev/linkong/planet/frontend/src/index.css) by styling the saved BGP brief workspace, Markdown output, history selector, and responsive compact state without re-breaking tab switching.
+- Improved [backend/app/services/bgp_collectors.py](/home/ray/dev/linkong/planet/backend/app/services/bgp_collectors.py) by replacing full-table ORM loading with database-side collector aggregation, latest-record lookup, and top-event summarization for the collector coverage hot path.
+
+### Fixed
+
+- Fixed the BGP tab rendering regression in [frontend/src/index.css](/home/ray/dev/linkong/planet/frontend/src/index.css) where forcing tab panes to `display: flex` accidentally kept hidden panes visible and made the first tab look permanently locked.
+- Fixed [backend/app/api/v1/bgp.py](/home/ray/dev/linkong/planet/backend/app/api/v1/bgp.py) so `events`, `anomalies`, and `incidents` no longer fetch whole tables into Python just to apply filtering, pagination, and counting.
+- Fixed the repository workflow around saved BGP brief artifacts by ignoring [data/ai/bgp-briefs/](/home/ray/dev/linkong/planet/data/ai/bgp-briefs/) in [.gitignore](/home/ray/dev/linkong/planet/.gitignore) instead of leaving runtime Markdown output to pollute git status during normal operator use.
+
 ## 0.24.4
 
 Released: 2026-04-09
diff --git a/docs/version-history.md b/docs/version-history.md
index 6cd063ac..b02792d0 100644
--- a/docs/version-history.md
+++ b/docs/version-history.md
@@ -16,7 +16,7 @@
 ## Current Version
 
 - `main` 当前主线历史推导到：`0.16.5`
-- `dev` 当前开发分支历史推导到：`0.24.4`
+- `dev` 当前开发分支历史推导到：`0.24.5`
 
 ## Timeline
 
@@ -77,6 +77,7 @@
 | `0.24.2` | bugfix | `dev` | `pending` | restore public Earth entry, refresh Playground provider diagnostics correctly, fit help-card content, and split frontend bundles by route/vendor |
 | `0.24.3` | bugfix | `dev` | `pending` | expand Playground diagnostics presets and result inspection, and make `planet.sh` rebuild changed AI Provider images with explicit Compose fallback reporting |
 | `0.24.4` | bugfix | `dev` | `pending` | polish `planet.sh` AI Provider rebuild stage boundaries, hide raw Compose build logs on success, and add explicit image-build completion feedback |
+| `0.24.5` | bugfix | `dev` | `pending` | add persistent BGP AI briefs with Markdown history, lazy-load BGP tabs, and move BGP hot-path filtering and aggregation back into the database |
 
 ## Maintenance Commits Not Counted as Version Bumps
 
diff --git a/frontend/package.json b/frontend/package.json
index ff6012de..6f3ccf85 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "planet-frontend",
-  "version": "0.24.4",
+  "version": "0.24.5",
   "private": true,
   "packageManager": "bun@1",
   "dependencies": {
diff --git a/frontend/src/components/MarkdownRenderer/MarkdownRenderer.tsx b/frontend/src/components/MarkdownRenderer/MarkdownRenderer.tsx
new file mode 100644
index 00000000..3ed87218
--- /dev/null
+++ b/frontend/src/components/MarkdownRenderer/MarkdownRenderer.tsx
@@ -0,0 +1,167 @@
+import type { ReactNode } from 'react'
+
+interface MarkdownRendererProps {
+  markdown: string
+  className?: string
+}
+
+function renderInlineMarkdown(text: string): ReactNode[] {
+  const result: ReactNode[] = []
+  const pattern = /(\[[^\]]+\]\([^)]+\)|`[^`]+`|\*\*[^*]+\*\*|\*[^*]+\*)/g
+  let lastIndex = 0
+  let key = 0
+
+  for (const match of text.matchAll(pattern)) {
+    const matchedText = match[0]
+    const start = match.index ?? 0
+
+    if (start > lastIndex) {
+      result.push(text.slice(lastIndex, start))
+    }
+
+    if (matchedText.startsWith('[')) {
+      const linkMatch = matchedText.match(/^\[([^\]]+)\]\(([^)]+)\)$/)
+      if (linkMatch) {
+        result.push(
+          <a key={`inline-${key}`} href={linkMatch[2]} target="_blank" rel="noreferrer">
+            {linkMatch[1]}
+          </a>,
+        )
+        key += 1
+        lastIndex = start + matchedText.length
+        continue
+      }
+    }
+
+    if (matchedText.startsWith('`')) {
+      result.push(<code key={`inline-${key}`}>{matchedText.slice(1, -1)}</code>)
+      key += 1
+      lastIndex = start + matchedText.length
+      continue
+    }
+
+    if (matchedText.startsWith('**')) {
+      result.push(<strong key={`inline-${key}`}>{matchedText.slice(2, -2)}</strong>)
+      key += 1
+      lastIndex = start + matchedText.length
+      continue
+    }
+
+    if (matchedText.startsWith('*')) {
+      result.push(<em key={`inline-${key}`}>{matchedText.slice(1, -1)}</em>)
+      key += 1
+      lastIndex = start + matchedText.length
+      continue
+    }
+  }
+
+  if (lastIndex < text.length) {
+    result.push(text.slice(lastIndex))
+  }
+
+  return result
+}
+
+export default function MarkdownRenderer({ markdown, className }: MarkdownRendererProps) {
+  const lines = markdown.replace(/\r\n/g, '\n').split('\n')
+  const nodes: ReactNode[] = []
+  let index = 0
+
+  while (index < lines.length) {
+    const line = lines[index]
+    const trimmed = line.trim()
+
+    if (!trimmed) {
+      index += 1
+      continue
+    }
+
+    if (trimmed.startsWith('```')) {
+      const codeLines: string[] = []
+      index += 1
+      while (index < lines.length && !lines[index].trim().startsWith('```')) {
+        codeLines.push(lines[index])
+        index += 1
+      }
+      if (index < lines.length) {
+        index += 1
+      }
+      nodes.push(
+        <pre key={`block-${index}`}>
+          <code>{codeLines.join('\n')}</code>
+        </pre>,
+      )
+      continue
+    }
+
+    const headingMatch = trimmed.match(/^(#{1,6})\s+(.+)$/)
+    if (headingMatch) {
+      const level = headingMatch[1].length
+      const content = renderInlineMarkdown(headingMatch[2])
+      if (level === 1) nodes.push(<h1 key={`block-${index}`}>{content}</h1>)
+      else if (level === 2) nodes.push(<h2 key={`block-${index}`}>{content}</h2>)
+      else if (level === 3) nodes.push(<h3 key={`block-${index}`}>{content}</h3>)
+      else if (level === 4) nodes.push(<h4 key={`block-${index}`}>{content}</h4>)
+      else nodes.push(<p key={`block-${index}`} className="markdown-renderer__heading-fallback">{content}</p>)
+      index += 1
+      continue
+    }
+
+    if (trimmed.startsWith('> ')) {
+      const quoteLines: string[] = []
+      while (index < lines.length && lines[index].trim().startsWith('> ')) {
+        quoteLines.push(lines[index].trim().slice(2))
+        index += 1
+      }
+      nodes.push(<blockquote key={`block-${index}`}>{quoteLines.join(' ')}</blockquote>)
+      continue
+    }
+
+    const unorderedMatch = trimmed.match(/^[-*]\s+(.+)$/)
+    if (unorderedMatch) {
+      const items: string[] = []
+      while (index < lines.length) {
+        const itemMatch = lines[index].trim().match(/^[-*]\s+(.+)$/)
+        if (!itemMatch) break
+        items.push(itemMatch[1])
+        index += 1
+      }
+      nodes.push(
+        <ul key={`block-${index}`}>
+          {items.map((item, itemIndex) => (
+            <li key={`item-${itemIndex}`}>{renderInlineMarkdown(item)}</li>
+          ))}
+        </ul>,
+      )
+      continue
+    }
+
+    const orderedMatch = trimmed.match(/^\d+\.\s+(.+)$/)
+    if (orderedMatch) {
+      const items: string[] = []
+      while (index < lines.length) {
+        const itemMatch = lines[index].trim().match(/^\d+\.\s+(.+)$/)
+        if (!itemMatch) break
+        items.push(itemMatch[1])
+        index += 1
+      }
+      nodes.push(
+        <ol key={`block-${index}`}>
+          {items.map((item, itemIndex) => (
+            <li key={`item-${itemIndex}`}>{renderInlineMarkdown(item)}</li>
+          ))}
+        </ol>,
+      )
+      continue
+    }
+
+    const paragraphLines: string[] = []
+    while (index < lines.length && lines[index].trim()) {
+      paragraphLines.push(lines[index].trim())
+      index += 1
+    }
+    nodes.push(<p key={`block-${index}`}>{renderInlineMarkdown(paragraphLines.join(' '))}</p>)
+  }
+
+  return <div className={className ? `markdown-renderer ${className}` : 'markdown-renderer'}>{nodes}</div>
+}
diff --git a/frontend/src/index.css b/frontend/src/index.css
index a390ee7b..9d75a680 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -1006,6 +1006,155 @@ body {
   font-size: 13px;
 }
 
+.bgp-page__brief-card {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+  min-height: 100%;
+}
+
+.bgp-page__brief-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 16px;
+}
+
+.bgp-page__brief-actions {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.bgp-page__brief-select {
+  min-width: 260px;
+}
+
+.bgp-page__brief-subtitle {
+  margin-top: 4px;
+  color: rgba(0, 0, 0, 0.45);
+  font-size: 13px;
+  line-height: 1.5;
+}
+
+.bgp-page__brief-loading,
+.bgp-page__brief-empty {
+  min-height: 72px;
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.bgp-page__brief-meta .ant-descriptions-view {
+  background: #f7f8fa;
+  border-radius: 12px;
+  padding: 8px 12px;
+}
+
+.bgp-page__brief-content {
+  flex: 1 1 auto;
+  min-height: 0;
+  overflow: auto;
+  padding: 14px 16px;
+  border-radius: 14px;
+  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 248, 251, 0.98));
+  border: 1px solid rgba(5, 5, 5, 0.08);
+  scrollbar-width: thin;
+  scrollbar-color: rgba(148, 163, 184, 0.88) transparent;
+}
+
+.markdown-renderer {
+  color: #262626;
+  font-size: 13px;
+  line-height: 1.7;
+}
+
+.markdown-renderer > :first-child {
+  margin-top: 0;
+}
+
+.markdown-renderer > :last-child {
+  margin-bottom: 0;
+}
+
+.markdown-renderer h1,
+.markdown-renderer h2,
+.markdown-renderer h3,
+.markdown-renderer h4 {
+  margin: 1.2em 0 0.5em;
+  color: #111827;
+  font-weight: 600;
+  line-height: 1.4;
+}
+
+.markdown-renderer h1 {
+  font-size: 24px;
+}
+
+.markdown-renderer h2 {
+  font-size: 19px;
+}
+
+.markdown-renderer h3 {
+  font-size: 16px;
+}
+
+.markdown-renderer p,
+.markdown-renderer ul,
+.markdown-renderer ol,
+.markdown-renderer blockquote,
+.markdown-renderer pre {
+  margin: 0 0 0.9em;
+}
+
+.markdown-renderer ul,
+.markdown-renderer ol {
+  padding-left: 1.4em;
+}
+
+.markdown-renderer li + li {
+  margin-top: 0.25em;
+}
+
+.markdown-renderer blockquote {
+  padding: 10px 14px;
+  border-left: 3px solid #91caff;
+  border-radius: 0 10px 10px 0;
+  background: rgba(230, 244, 255, 0.8);
+  color: #1f2937;
+}
+
+.markdown-renderer pre {
+  overflow: auto;
+  padding: 12px 14px;
+  border-radius: 10px;
+  background: #0f172a;
+  color: #e2e8f0;
+}
+
+.markdown-renderer code {
+  padding: 0.08em 0.32em;
+  border-radius: 6px;
+  background: rgba(15, 23, 42, 0.08);
+  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
+  font-size: 0.92em;
+}
+
+.markdown-renderer pre code {
+  padding: 0;
+  background: transparent;
+  color: inherit;
+}
+
+.markdown-renderer a {
+  color: #1677ff;
+  text-decoration: none;
+}
+
+.markdown-renderer a:hover {
+  text-decoration: underline;
+}
+
 .bgp-page__summary-card .ant-card-body {
   padding: 10px 12px;
 }
@@ -1122,6 +1271,10 @@ body {
   overflow: hidden;
 }
 
+.bgp-page__tabs .ant-tabs-tabpane-hidden {
+  display: none;
+}
+
 .bgp-page__tabs .ant-table-wrapper {
   flex: 1 1 auto;
   min-width: 0;
@@ -1175,6 +1328,16 @@ body {
   padding: 10px 12px;
 }
 
+.bgp-page--compact .bgp-page__brief-head {
+  flex-direction: column;
+  align-items: stretch;
+}
+
+.bgp-page--compact .bgp-page__brief-actions,
+.bgp-page--compact .bgp-page__brief-select {
+  width: 100%;
+}
+
 .bgp-page--compact .bgp-page__summary-item {
   min-height: 64px;
   padding: 8px 10px;
diff --git a/frontend/src/pages/BGP/BGP.tsx b/frontend/src/pages/BGP/BGP.tsx
index bb62cac1..1233e0db 100644
--- a/frontend/src/pages/BGP/BGP.tsx
+++ b/frontend/src/pages/BGP/BGP.tsx
@@ -1,19 +1,50 @@
 import { useEffect, useRef, useState } from 'react'
-import { Alert, Card, Col, Row, Space, Statistic, Table, Tabs, Tag, Typography } from 'antd'
+import { ReloadOutlined } from '@ant-design/icons'
+import {
+  Alert,
+  Button,
+  Card,
+  Col,
+  Descriptions,
+  Row,
+  Select,
+  Space,
+  Spin,
+  Statistic,
+  Table,
+  Tabs,
+  Tag,
+  Typography,
+  message,
+  type TableColumnsType,
+  type TabsProps,
+} from 'antd'
 import AppLayout from '../../components/AppLayout/AppLayout'
+import MarkdownRenderer from '../../components/MarkdownRenderer/MarkdownRenderer'
 import { formatDateTimeZhCN } from '../../utils/datetime'
 import {
-  getSituationalAwarenessGateway,
   type BGPAnomaly,
+  type BGPBriefRecord,
+  type BGPBriefRecordSummary,
   type BGPCollectorCoverage,
   type BGPEvent,
   type BGPIncident,
   type CollectorSummary,
   type EventSummary,
   type Summary,
+  getSituationalAwarenessGateway,
 } from '../../services/situational-awareness'
 
 const { Title, Text } = Typography
+
+const OVERVIEW_OPTIONS = {
+  incidentPageSize: 50,
+  anomalyPageSize: 100,
+  eventPageSize: 20,
+}
+
+const DEFAULT_BGP_TAB = 'collectors'
+
 const situationalAwarenessGateway = getSituationalAwarenessGateway()
 
 function severityColor(severity: string) {
@@ -23,50 +54,402 @@ function severityColor(severity: string) {
   return 'blue'
 }
 
+function formatBriefOptions(records: BGPBriefRecordSummary[]) {
+  return records.map((item) => ({
+    value: item.id,
+    label: `${formatDateTimeZhCN(item.generated_at)} · ${item.model}`,
+  }))
+}
+
+function sortBriefRecords<T extends BGPBriefRecordSummary>(records: T[]) {
+  return [...records].sort((left, right) => right.generated_at.localeCompare(left.generated_at))
+}
+
+function renderCollectorLocation(_: unknown, record: BGPCollectorCoverage) {
+  return [record.city, record.country].filter(Boolean).join(', ') || '-'
+}
+
+function renderCollectorLatestEvent(_: unknown, record: BGPCollectorCoverage) {
+  const time = formatDateTimeZhCN(record.latest_observed_at)
+  return record.latest_event_type ? `${record.latest_event_type} @ ${time}` : time
+}
+
+function renderCollectorScope(value: BGPCollectorCoverage['baseline_scope']) {
+  const cities = value?.cities?.slice(0, 3).join(' / ') || ''
+  const countries = value?.countries?.slice(0, 3).join(' / ') || ''
+  return cities && countries ? `${cities} | ${countries}` : cities || countries || '-'
+}
+
+function renderIncidentCollectors(value: string[]) {
+  return value && value.length > 0 ? `${value.length}个 (${value.slice(0, 3).join(', ')})` : '-'
+}
+
+function renderIncidentRegions(value: Array<{ country?: string; city?: string }>) {
+  if (!value || value.length === 0) return '-'
+  return value
+    .slice(0, 3)
+    .map((item) => [item.city, item.country].filter(Boolean).join(', '))
+    .join(' / ')
+}
+
+function renderIncidentCables(value: BGPIncident['related_cables']) {
+  if (!value || value.length === 0) return '-'
+
+  return value
+    .slice(0, 2)
+    .map((item) => {
+      const landing = item.landing_point || [item.city, item.country].filter(Boolean).join(', ')
+      const cable = item.cable_names && item.cable_names.length > 0 ? item.cable_names[0] : '附近登陆点'
+      const distance = item.distance_km !== undefined ? ` ${item.distance_km}km` : ''
+      return `${landing} (${cable}${distance})`
+    })
+    .join(' / ')
+}
+
+function renderPercentage(value: number) {
+  return `${Math.round((value || 0) * 100)}%`
+}
+
+function renderAnomalyAsn(_: unknown, record: BGPAnomaly) {
+  if (record.origin_asn && record.new_origin_asn) {
+    return `AS${record.origin_asn} -> AS${record.new_origin_asn}`
+  }
+  if (record.origin_asn) {
+    return `AS${record.origin_asn}`
+  }
+  return '-'
+}
+
+function renderOptionalAsn(value: number | null) {
+  return value ? `AS${value}` : '-'
+}
+
+const collectorColumns: TableColumnsType<BGPCollectorCoverage> = [
+  {
+    title: '观测站',
+    dataIndex: 'collector',
+    width: 120,
+  },
+  {
+    title: '位置',
+    width: 180,
+    render: renderCollectorLocation,
+  },
+  {
+    title: '近24h事件数',
+    dataIndex: 'recent_24h_observation_count',
+    width: 120,
+  },
+  {
+    title: '近7d事件数',
+    dataIndex: 'recent_7d_observation_count',
+    width: 120,
+  },
+  {
+    title: '前缀数',
+    dataIndex: 'prefix_count',
+    width: 120,
+  },
+  {
+    title: 'Origin ASN 数',
+    dataIndex: 'origin_asn_count',
+    width: 140,
+  },
+  {
+    title: '最近事件',
+    width: 220,
+    render: renderCollectorLatestEvent,
+  },
+  {
+    title: '日常覆盖范围',
+    dataIndex: 'baseline_scope',
+    width: 280,
+    render: renderCollectorScope,
+  },
+]
+
+const incidentColumns: TableColumnsType<BGPIncident> = [
+  {
+    title: '开始时间',
+    dataIndex: 'started_at',
+    width: 180,
+    render: (value: string | null) => formatDateTimeZhCN(value),
+  },
+  {
+    title: '类型',
+    dataIndex: 'incident_type',
+    width: 180,
+  },
+  {
+    title: '严重度',
+    dataIndex: 'severity',
+    width: 120,
+    render: (value: string) => <Tag color={severityColor(value)}>{value}</Tag>,
+  },
+  {
+    title: '影响前缀',
+    dataIndex: 'affected_prefixes',
+    width: 200,
+    render: (value: string[]) => (value && value.length > 0 ? value.join(', ') : '-'),
+  },
+  {
+    title: '观测站',
+    dataIndex: 'affected_collectors',
+    width: 180,
+    render: renderIncidentCollectors,
+  },
+  {
+    title: '区域',
+    dataIndex: 'affected_regions',
+    width: 220,
+    render: renderIncidentRegions,
+  },
+  {
+    title: '附近基础设施',
+    dataIndex: 'related_cables',
+    width: 260,
+    render: renderIncidentCables,
+  },
+  {
+    title: '置信度',
+    dataIndex: 'confidence',
+    width: 120,
+    render: renderPercentage,
+  },
+  {
+    title: '摘要',
+    dataIndex: 'summary',
+    width: 320,
+  },
+]
+
+const anomalyColumns: TableColumnsType<BGPAnomaly> = [
+  {
+    title: '时间',
+    dataIndex: 'created_at',
+    width: 180,
+    render: (value: string | null) => formatDateTimeZhCN(value),
+  },
+  {
+    title: '类型',
+    dataIndex: 'anomaly_type',
+    width: 180,
+  },
+  {
+    title: '严重度',
+    dataIndex: 'severity',
+    width: 120,
+    render: (value: string) => <Tag color={severityColor(value)}>{value}</Tag>,
+  },
+  {
+    title: '前缀',
+    dataIndex: 'prefix',
+    width: 180,
+    render: (value: string | null) => value || '-',
+  },
+  {
+    title: 'ASN',
+    key: 'asn',
+    width: 160,
+    render: renderAnomalyAsn,
+  },
+  {
+    title: '来源',
+    dataIndex: 'source',
+    width: 140,
+  },
+  {
+    title: '置信度',
+    dataIndex: 'confidence',
+    width: 120,
+    render: renderPercentage,
+  },
+  {
+    title: '摘要',
+    dataIndex: 'summary',
+    width: 320,
+  },
+]
+
+const eventColumns: TableColumnsType<BGPEvent> = [
+  {
+    title: '时间',
+    dataIndex: 'observed_at',
+    width: 180,
+    render: (value: string | null) => formatDateTimeZhCN(value),
+  },
+  {
+    title: '观测站',
+    dataIndex: 'collector',
+    width: 140,
+    render: (value: string | null) => value || '-',
+  },
+  {
+    title: '类型',
+    dataIndex: 'event_type',
+    width: 120,
+  },
+  {
+    title: '前缀',
+    dataIndex: 'prefix',
+    width: 200,
+    render: (value: string | null) => value || '-',
+  },
+  {
+    title: 'Origin ASN',
+    dataIndex: 'origin_asn',
+    width: 140,
+    render: renderOptionalAsn,
+  },
+  {
+    title: 'Peer ASN',
+    dataIndex: 'peer_asn',
+    width: 140,
+    render: renderOptionalAsn,
+  },
+]
+
+async function loadInitialBrief(savedBriefs: BGPBriefRecordSummary[]) {
+  const latestBrief = await situationalAwarenessGateway.getLatestBGPBrief()
+  if (latestBrief) {
+    return latestBrief
+  }
+  if (savedBriefs[0]) {
+    return situationalAwarenessGateway.getBGPBrief(savedBriefs[0].id)
+  }
+  return null
+}
+
 function BGP() {
-  const [loading, setLoading] = useState(false)
+  const [messageApi, contextHolder] = message.useMessage()
+  const [summaryLoading, setSummaryLoading] = useState(false)
+  const [activeTab, setActiveTab] = useState(DEFAULT_BGP_TAB)
   const [incidents, setIncidents] = useState<BGPIncident[]>([])
   const [anomalies, setAnomalies] = useState<BGPAnomaly[]>([])
   const [events, setEvents] = useState<BGPEvent[]>([])
   const [collectors, setCollectors] = useState<BGPCollectorCoverage[]>([])
+  const [collectorsLoading, setCollectorsLoading] = useState(false)
+  const [incidentsLoading, setIncidentsLoading] = useState(false)
+  const [anomaliesLoading, setAnomaliesLoading] = useState(false)
+  const [eventsLoading, setEventsLoading] = useState(false)
   const [incidentSummary, setIncidentSummary] = useState<Summary | null>(null)
   const [eventSummary, setEventSummary] = useState<EventSummary | null>(null)
   const [collectorSummary, setCollectorSummary] = useState<CollectorSummary | null>(null)
   const [compactViewport, setCompactViewport] = useState(false)
-  const tableRegionRef = useRef<HTMLDivElement | null>(null)
   const [tableHeight, setTableHeight] = useState(360)
+  const [briefLoading, setBriefLoading] = useState(false)
+  const [briefDetailLoading, setBriefDetailLoading] = useState(false)
+  const [brief, setBrief] = useState<BGPBriefRecord | null>(null)
+  const [briefOptions, setBriefOptions] = useState<BGPBriefRecordSummary[]>([])
+  const [selectedBriefId, setSelectedBriefId] = useState<string | null>(null)
+  const [briefListLoaded, setBriefListLoaded] = useState(false)
+  const tableRegionRef = useRef<HTMLDivElement | null>(null)
 
   useEffect(() => {
     const load = async () => {
-      setLoading(true)
+      setSummaryLoading(true)
       try {
-        const snapshot = await situationalAwarenessGateway.getBGPOverview({
-          incidentPageSize: 50,
-          anomalyPageSize: 100,
-          eventPageSize: 20,
-        })
-        setIncidents(snapshot.incidents)
-        setIncidentSummary(snapshot.incidentSummary)
-        setAnomalies(snapshot.anomalies)
-        setEvents(snapshot.events)
-        setEventSummary(snapshot.eventSummary)
-        setCollectors(snapshot.collectors)
-        setCollectorSummary(snapshot.collectorSummary)
+        const summary = await situationalAwarenessGateway.getBGPSummary()
+
+        setIncidentSummary(summary.incidentSummary)
+        setEventSummary(summary.eventSummary)
+        setCollectorSummary(summary.collectorSummary)
       } catch (error) {
         console.error('Failed to load BGP overview:', error)
       } finally {
-        setLoading(false)
+        setSummaryLoading(false)
       }
     }
 
-    load()
+    void load()
   }, [])
 
+  useEffect(() => {
+    const loadTabData = async () => {
+      if (activeTab === 'collectors' && collectors.length === 0 && !collectorsLoading) {
+        setCollectorsLoading(true)
+        try {
+          setCollectors(await situationalAwarenessGateway.getBGPCollectors())
+        } catch (error) {
+          console.error('Failed to load BGP collectors:', error)
+        } finally {
+          setCollectorsLoading(false)
+        }
+        return
+      }
+
+      if (activeTab === 'incidents' && incidents.length === 0 && !incidentsLoading) {
+        setIncidentsLoading(true)
+        try {
+          setIncidents(await situationalAwarenessGateway.getBGPIncidents(OVERVIEW_OPTIONS.incidentPageSize))
+        } catch (error) {
+          console.error('Failed to load BGP incidents:', error)
+        } finally {
+          setIncidentsLoading(false)
+        }
+        return
+      }
+
+      if (activeTab === 'anomalies' && anomalies.length === 0 && !anomaliesLoading) {
+        setAnomaliesLoading(true)
+        try {
+          setAnomalies(await situationalAwarenessGateway.getBGPAnomalies(OVERVIEW_OPTIONS.anomalyPageSize))
+        } catch (error) {
+          console.error('Failed to load BGP anomalies:', error)
+        } finally {
+          setAnomaliesLoading(false)
+        }
+        return
+      }
+
+      if (activeTab === 'events' && events.length === 0 && !eventsLoading) {
+        setEventsLoading(true)
+        try {
+          setEvents(await situationalAwarenessGateway.getBGPEvents(OVERVIEW_OPTIONS.eventPageSize))
+        } catch (error) {
+          console.error('Failed to load BGP events:', error)
+        } finally {
+          setEventsLoading(false)
+        }
+        return
+      }
+
+      if (activeTab === 'brief' && !briefListLoaded && !briefDetailLoading) {
+        setBriefDetailLoading(true)
+        try {
+          const savedBriefs = sortBriefRecords(await situationalAwarenessGateway.listBGPBriefs())
+          const initialBrief = await loadInitialBrief(savedBriefs)
+          setBriefOptions(savedBriefs)
+          setBrief(initialBrief)
+          setSelectedBriefId(initialBrief?.id || savedBriefs[0]?.id || null)
+          setBriefListLoaded(true)
+        } catch (error) {
+          console.error('Failed to load BGP briefs:', error)
+        } finally {
+          setBriefDetailLoading(false)
+        }
+      }
+    }
+
+    void loadTabData()
+  }, [
+    activeTab,
+    anomalies.length,
+    anomaliesLoading,
+    briefDetailLoading,
+    briefListLoaded,
+    collectors.length,
+    collectorsLoading,
+    events.length,
+    eventsLoading,
+    incidents.length,
+    incidentsLoading,
+  ])
+
   useEffect(() => {
     const updateViewportMode = () => {
       if (typeof window === 'undefined') return
-      const compact = window.innerHeight <= 860 || window.innerWidth <= 1440
-      setCompactViewport(compact)
+      setCompactViewport(window.innerHeight <= 860 || window.innerWidth <= 1440)
     }
 
     updateViewportMode()
@@ -77,7 +460,9 @@ function BGP() {
   useEffect(() => {
     const updateTableHeight = () => {
       const regionHeight = tableRegionRef.current?.offsetHeight || 0
-      setTableHeight(Math.max(compactViewport ? 180 : 240, regionHeight - (compactViewport ? 40 : 52)))
+      const minimumHeight = compactViewport ? 180 : 240
+      const verticalOffset = compactViewport ? 40 : 52
+      setTableHeight(Math.max(minimumHeight, regionHeight - verticalOffset))
     }
 
     updateTableHeight()
@@ -87,7 +472,9 @@ function BGP() {
     }
 
     const observer = new ResizeObserver(updateTableHeight)
-    if (tableRegionRef.current) observer.observe(tableRegionRef.current)
+    if (tableRegionRef.current) {
+      observer.observe(tableRegionRef.current)
+    }
 
     return () => observer.disconnect()
   }, [compactViewport, collectors.length, incidents.length, anomalies.length, events.length])
@@ -101,8 +488,165 @@ function BGP() {
     { label: '严重事件', value: incidentSummary?.by_severity?.critical || 0 },
   ]
 
+  const handleGenerateBrief = async () => {
+    setBriefLoading(true)
+    try {
+      const record = await situationalAwarenessGateway.generateBGPBrief()
+      setBrief(record)
+      setSelectedBriefId(record.id)
+      setBriefOptions((current) => sortBriefRecords([record, ...current.filter((item) => item.id !== record.id)]))
+      setBriefListLoaded(true)
+      messageApi.success('BGP AI 简报已生成')
+    } catch (error) {
+      console.error('Failed to generate BGP brief:', error)
+      messageApi.error('BGP AI 简报生成失败，请检查 AI Provider 或稍后再试')
+    } finally {
+      setBriefLoading(false)
+    }
+  }
+
+  const handleBriefSelectionChange = async (briefId: string) => {
+    setSelectedBriefId(briefId)
+    setBriefDetailLoading(true)
+    try {
+      setBrief(await situationalAwarenessGateway.getBGPBrief(briefId))
+    } catch (error) {
+      console.error('Failed to load saved BGP brief:', error)
+      messageApi.error('BGP AI 简报加载失败，请稍后再试')
+    } finally {
+      setBriefDetailLoading(false)
+    }
+  }
+
+  const briefTabContent = (
+    <div className="bgp-page__brief-card">
+      <div className="bgp-page__brief-head">
+        <div>
+          <Text strong>BGP AI 简报</Text>
+          <div className="bgp-page__brief-subtitle">
+            每次生成都会保存为 Markdown。打开页面时默认展示最近一次简报，也可以从历史列表切换查看。
+          </div>
+        </div>
+        <div className="bgp-page__brief-actions">
+          <Select
+            className="bgp-page__brief-select"
+            placeholder="选择历史简报"
+            value={selectedBriefId || undefined}
+            options={formatBriefOptions(briefOptions)}
+            onChange={(value) => void handleBriefSelectionChange(value)}
+            disabled={briefLoading || briefDetailLoading || briefOptions.length === 0}
+          />
+          <Button
+            type="primary"
+            icon={<ReloadOutlined />}
+            loading={briefLoading}
+            onClick={() => void handleGenerateBrief()}
+          >
+            生成 AI 简报
+          </Button>
+        </div>
+      </div>
+
+      {briefLoading || briefDetailLoading ? (
+        <div className="bgp-page__brief-loading">
+          <Spin />
+          <Text type="secondary">
+            {briefLoading ? '正在整理 BGP 事实并生成简报...' : '正在加载已保存的 BGP 简报...'}
+          </Text>
+        </div>
+      ) : brief ? (
+        <Space direction="vertical" size={12} style={{ width: '100%' }}>
+          <Descriptions size="small" column={compactViewport ? 1 : 3} className="bgp-page__brief-meta">
+            <Descriptions.Item label="Provider">{brief.provider || '-'}</Descriptions.Item>
+            <Descriptions.Item label="模型">{brief.model || '-'}</Descriptions.Item>
+            <Descriptions.Item label="请求ID">{brief.request_id || '-'}</Descriptions.Item>
+            <Descriptions.Item label="生成时间" span={compactViewport ? 1 : 3}>
+              {formatDateTimeZhCN(brief.generated_at)}
+            </Descriptions.Item>
+          </Descriptions>
+          <div className="bgp-page__brief-content">
+            <MarkdownRenderer markdown={brief.content_markdown} />
+          </div>
+        </Space>
+      ) : (
+        <div className="bgp-page__brief-empty">
+          <Text type="secondary">还没有生成简报。点击右侧按钮，用当前 BGP 真实数据生成并保存第一份 Markdown 简报。</Text>
+        </div>
+      )}
+    </div>
+  )
+
+  const tabItems: TabsProps['items'] = [
+    {
+      key: 'collectors',
+      label: '观测站覆盖',
+      children: (
+        <Table<BGPCollectorCoverage>
+          rowKey="collector"
+          loading={summaryLoading || collectorsLoading}
+          dataSource={collectors}
+          pagination={false}
+          scroll={{ x: 1240, y: tableHeight }}
+          tableLayout="fixed"
+          columns={collectorColumns}
+        />
+      ),
+    },
+    {
+      key: 'incidents',
+      label: '事件列表',
+      children: (
+        <Table<BGPIncident>
+          rowKey="id"
+          loading={summaryLoading || incidentsLoading}
+          dataSource={incidents}
+          pagination={false}
+          scroll={{ x: 1660, y: tableHeight }}
+          tableLayout="fixed"
+          columns={incidentColumns}
+        />
+      ),
+    },
+    {
+      key: 'anomalies',
+      label: '异常明细',
+      children: (
+        <Table<BGPAnomaly>
+          rowKey="id"
+          loading={summaryLoading || anomaliesLoading}
+          dataSource={anomalies}
+          pagination={false}
+          scroll={{ x: 1380, y: tableHeight }}
+          tableLayout="fixed"
+          columns={anomalyColumns}
+        />
+      ),
+    },
+    {
+      key: 'events',
+      label: '最近观测事件',
+      children: (
+        <Table<BGPEvent>
+          rowKey="id"
+          loading={summaryLoading || eventsLoading}
+          dataSource={events}
+          pagination={false}
+          scroll={{ x: 980, y: tableHeight }}
+          tableLayout="fixed"
+          columns={eventColumns}
+        />
+      ),
+    },
+    {
+      key: 'brief',
+      label: 'AI 简报',
+      children: briefTabContent,
+    },
+  ]
+
   return (
     <AppLayout>
+      {contextHolder}
       <div className={`page-shell bgp-page${compactViewport ? ' bgp-page--compact' : ''}`}>
         <div className="page-shell__header bgp-page__header">
           <div>
@@ -152,277 +696,9 @@ function BGP() {
               <div ref={tableRegionRef} className="table-scroll-region bgp-page__table-region">
                 <Tabs
                   className="bgp-page__tabs"
-                  items={[
-                    {
-                      key: 'collectors',
-                      label: '观测站覆盖',
-                      children: (
-                        <Table<BGPCollectorCoverage>
-                          rowKey="collector"
-                          loading={loading}
-                          dataSource={collectors}
-                          pagination={false}
-                          scroll={{ x: 1240, y: tableHeight }}
-                          tableLayout="fixed"
-                          columns={[
-                            {
-                              title: '观测站',
-                              dataIndex: 'collector',
-                              width: 120,
-                            },
-                            {
-                              title: '位置',
-                              width: 180,
-                              render: (_, record) => [record.city, record.country].filter(Boolean).join(', ') || '-',
-                            },
-                            {
-                              title: '近24h事件数',
-                              dataIndex: 'recent_24h_observation_count',
-                              width: 120,
-                            },
-                            {
-                              title: '近7d事件数',
-                              dataIndex: 'recent_7d_observation_count',
-                              width: 120,
-                            },
-                            {
-                              title: '前缀数',
-                              dataIndex: 'prefix_count',
-                              width: 120,
-                            },
-                            {
-                              title: 'Origin ASN 数',
-                              dataIndex: 'origin_asn_count',
-                              width: 140,
-                            },
-                            {
-                              title: '最近事件',
-                              width: 220,
-                              render: (_, record) => {
-                                const time = formatDateTimeZhCN(record.latest_observed_at)
-                                return record.latest_event_type ? `${record.latest_event_type} @ ${time}` : time
-                              },
-                            },
-                            {
-                              title: '日常覆盖范围',
-                              dataIndex: 'baseline_scope',
-                              width: 280,
-                              render: (value: BGPCollectorCoverage['baseline_scope']) => {
-                                const cities = value?.cities?.slice(0, 3).join(' / ') || ''
-                                const countries = value?.countries?.slice(0, 3).join(' / ') || ''
-                                return cities && countries ? `${cities} | ${countries}` : cities || countries || '-'
-                              },
-                            },
-                          ]}
-                        />
-                      ),
-                    },
-                    {
-                      key: 'incidents',
-                      label: '事件列表',
-                      children: (
-                        <Table<BGPIncident>
-                          rowKey="id"
-                          loading={loading}
-                          dataSource={incidents}
-                          pagination={false}
-                          scroll={{ x: 1660, y: tableHeight }}
-                          tableLayout="fixed"
-                          columns={[
-                            {
-                              title: '开始时间',
-                              dataIndex: 'started_at',
-                              width: 180,
-                              render: (value: string | null) => formatDateTimeZhCN(value),
-                            },
-                            {
-                              title: '类型',
-                              dataIndex: 'incident_type',
-                              width: 180,
-                            },
-                            {
-                              title: '严重度',
-                              dataIndex: 'severity',
-                              width: 120,
-                              render: (value: string) => <Tag color={severityColor(value)}>{value}</Tag>,
-                            },
-                            {
-                              title: '影响前缀',
-                              dataIndex: 'affected_prefixes',
-                              width: 200,
-                              render: (value: string[]) => (value && value.length > 0 ? value.join(', ') : '-'),
-                            },
-                            {
-                              title: '观测站',
-                              dataIndex: 'affected_collectors',
-                              width: 180,
-                              render: (value: string[]) => (value && value.length > 0 ? `${value.length}个 (${value.slice(0, 3).join(', ')})` : '-'),
-                            },
-                            {
-                              title: '区域',
-                              dataIndex: 'affected_regions',
-                              width: 220,
-                              render: (value: Array<{ country?: string; city?: string }>) => {
-                                if (!value || value.length === 0) return '-'
-                                return value
-                                  .slice(0, 3)
-                                  .map((item) => [item.city, item.country].filter(Boolean).join(', '))
-                                  .join(' / ')
-                              },
-                            },
-                            {
-                              title: '附近基础设施',
-                              dataIndex: 'related_cables',
-                              width: 260,
-                              render: (value: BGPIncident['related_cables']) => {
-                                if (!value || value.length === 0) return '-'
-                                return value
-                                  .slice(0, 2)
-                                  .map((item) => {
-                                    const landing = item.landing_point || [item.city, item.country].filter(Boolean).join(', ')
-                                    const cable = item.cable_names && item.cable_names.length > 0 ? item.cable_names[0] : '附近登陆点'
-                                    const distance = item.distance_km !== undefined ? ` ${item.distance_km}km` : ''
-                                    return `${landing} (${cable}${distance})`
-                                  })
-                                  .join(' / ')
-                              },
-                            },
-                            {
-                              title: '置信度',
-                              dataIndex: 'confidence',
-                              width: 120,
-                              render: (value: number) => `${Math.round((value || 0) * 100)}%`,
-                            },
-                            {
-                              title: '摘要',
-                              dataIndex: 'summary',
-                              width: 320,
-                            },
-                          ]}
-                        />
-                      ),
-                    },
-                    {
-                      key: 'anomalies',
-                      label: '异常明细',
-                      children: (
-                        <Table<BGPAnomaly>
-                          rowKey="id"
-                          loading={loading}
-                          dataSource={anomalies}
-                          pagination={false}
-                          scroll={{ x: 1380, y: tableHeight }}
-                          tableLayout="fixed"
-                          columns={[
-                            {
-                              title: '时间',
-                              dataIndex: 'created_at',
-                              width: 180,
-                              render: (value: string | null) => formatDateTimeZhCN(value),
-                            },
-                            {
-                              title: '类型',
-                              dataIndex: 'anomaly_type',
-                              width: 180,
-                            },
-                            {
-                              title: '严重度',
-                              dataIndex: 'severity',
-                              width: 120,
-                              render: (value: string) => <Tag color={severityColor(value)}>{value}</Tag>,
-                            },
-                            {
-                              title: '前缀',
-                              dataIndex: 'prefix',
-                              width: 180,
-                              render: (value: string | null) => value || '-',
-                            },
-                            {
-                              title: 'ASN',
-                              key: 'asn',
-                              width: 160,
-                              render: (_, record) => {
-                                if (record.origin_asn && record.new_origin_asn) {
-                                  return `AS${record.origin_asn} -> AS${record.new_origin_asn}`
-                                }
-                                if (record.origin_asn) {
-                                  return `AS${record.origin_asn}`
-                                }
-                                return '-'
-                              },
-                            },
-                            {
-                              title: '来源',
-                              dataIndex: 'source',
-                              width: 140,
-                            },
-                            {
-                              title: '置信度',
-                              dataIndex: 'confidence',
-                              width: 120,
-                              render: (value: number) => `${Math.round((value || 0) * 100)}%`,
-                            },
-                            {
-                              title: '摘要',
-                              dataIndex: 'summary',
-                              width: 320,
-                            },
-                          ]}
-                        />
-                      ),
-                    },
-                    {
-                      key: 'events',
-                      label: '最近观测事件',
-                      children: (
-                        <Table<BGPEvent>
-                          rowKey="id"
-                          loading={loading}
-                          dataSource={events}
-                          pagination={false}
-                          scroll={{ x: 980, y: tableHeight }}
-                          tableLayout="fixed"
-                          columns={[
-                            {
-                              title: '时间',
-                              dataIndex: 'observed_at',
-                              width: 180,
-                              render: (value: string | null) => formatDateTimeZhCN(value),
-                            },
-                            {
-                              title: '观测站',
-                              dataIndex: 'collector',
-                              width: 140,
-                              render: (value: string | null) => value || '-',
-                            },
-                            {
-                              title: '类型',
-                              dataIndex: 'event_type',
-                              width: 120,
-                            },
-                            {
-                              title: '前缀',
-                              dataIndex: 'prefix',
-                              width: 200,
-                              render: (value: string | null) => value || '-',
-                            },
-                            {
-                              title: 'Origin ASN',
-                              dataIndex: 'origin_asn',
-                              width: 140,
-                              render: (value: number | null) => (value ? `AS${value}` : '-'),
-                            },
-                            {
-                              title: 'Peer ASN',
-                              dataIndex: 'peer_asn',
-                              width: 140,
-                              render: (value: number | null) => (value ? `AS${value}` : '-'),
-                            },
-                          ]}
-                        />
-                      ),
-                    },
-                  ]}
+                  activeKey={activeTab}
+                  onChange={setActiveTab}
+                  items={tabItems}
                 />
               </div>
             </Card>
diff --git a/frontend/src/services/situational-awareness/http-gateway.ts b/frontend/src/services/situational-awareness/http-gateway.ts
index b64742f5..17f4a8cc 100644
--- a/frontend/src/services/situational-awareness/http-gateway.ts
+++ b/frontend/src/services/situational-awareness/http-gateway.ts
@@ -2,11 +2,14 @@ import axios from 'axios'
 import type { SituationalAwarenessGateway } from './port'
 import type {
   BGPAnomaly,
+  BGPBriefRecord,
+  BGPBriefRecordSummary,
   BGPCollectorCoverage,
   BGPEvent,
   BGPIncident,
   BGPOverviewOptions,
   BGPOverviewSnapshot,
+  BGPSummarySnapshot,
   CollectorSummary,
   EventSummary,
   ListResponse,
@@ -16,6 +19,91 @@ import type {
 const API_BASE_URL = (import.meta as any).env?.VITE_API_URL || '/api/v1'
 
 export class HttpSituationalAwarenessGateway implements SituationalAwarenessGateway {
+  private bgpSummaryPromise: Promise<BGPSummarySnapshot> | null = null
+  private collectorsPromise: Promise<BGPCollectorCoverage[]> | null = null
+  private incidentsPromises = new Map<number, Promise<BGPIncident[]>>()
+  private anomaliesPromises = new Map<number, Promise<BGPAnomaly[]>>()
+  private eventsPromises = new Map<number, Promise<BGPEvent[]>>()
+  private briefListPromise: Promise<BGPBriefRecordSummary[]> | null = null
+  private latestBriefPromise: Promise<BGPBriefRecord | null> | null = null
+
+  async getBGPSummary(): Promise<BGPSummarySnapshot> {
+    if (!this.bgpSummaryPromise) {
+      this.bgpSummaryPromise = axios
+        .get<BGPSummarySnapshot>(`${API_BASE_URL}/bgp/overview/summary`)
+        .then((response) => response.data)
+        .finally(() => {
+          this.bgpSummaryPromise = null
+        })
+    }
+
+    return this.bgpSummaryPromise
+  }
+
+  async getBGPCollectors(): Promise<BGPCollectorCoverage[]> {
+    if (!this.collectorsPromise) {
+      this.collectorsPromise = axios
+        .get<ListResponse<BGPCollectorCoverage>>(`${API_BASE_URL}/bgp/collectors`)
+        .then((response) => response.data.data || [])
+        .finally(() => {
+          this.collectorsPromise = null
+        })
+    }
+
+    return this.collectorsPromise
+  }
+
+  async getBGPIncidents(pageSize = 50): Promise<BGPIncident[]> {
+    const existing = this.incidentsPromises.get(pageSize)
+    if (existing) {
+      return existing
+    }
+
+    const request = axios
+      .get<ListResponse<BGPIncident>>(`${API_BASE_URL}/bgp/incidents`, { params: { page_size: pageSize } })
+      .then((response) => response.data.data || [])
+      .finally(() => {
+        this.incidentsPromises.delete(pageSize)
+      })
+
+    this.incidentsPromises.set(pageSize, request)
+    return request
+  }
+
+  async getBGPAnomalies(pageSize = 100): Promise<BGPAnomaly[]> {
+    const existing = this.anomaliesPromises.get(pageSize)
+    if (existing) {
+      return existing
+    }
+
+    const request = axios
+      .get<ListResponse<BGPAnomaly>>(`${API_BASE_URL}/bgp/anomalies`, { params: { page_size: pageSize } })
+      .then((response) => response.data.data || [])
+      .finally(() => {
+        this.anomaliesPromises.delete(pageSize)
+      })
+
+    this.anomaliesPromises.set(pageSize, request)
+    return request
+  }
+
+  async getBGPEvents(pageSize = 20): Promise<BGPEvent[]> {
+    const existing = this.eventsPromises.get(pageSize)
+    if (existing) {
+      return existing
+    }
+
+    const request = axios
+      .get<ListResponse<BGPEvent>>(`${API_BASE_URL}/bgp/events`, { params: { page_size: pageSize } })
+      .then((response) => response.data.data || [])
+      .finally(() => {
+        this.eventsPromises.delete(pageSize)
+      })
+
+    this.eventsPromises.set(pageSize, request)
+    return request
+  }
+
   async getBGPOverview(options: BGPOverviewOptions = {}): Promise<BGPOverviewSnapshot> {
     const {
       incidentPageSize = 50,
@@ -43,4 +131,46 @@ export class HttpSituationalAwarenessGateway implements SituationalAwarenessGate
       collectorSummary: collectorSummaryRes.data,
     }
   }
+
+  async generateBGPBrief(): Promise<BGPBriefRecord> {
+    const response = await axios.post<BGPBriefRecord>(`${API_BASE_URL}/ai/bgp/brief`, {})
+    return response.data
+  }
+
+  async listBGPBriefs(): Promise<BGPBriefRecordSummary[]> {
+    if (!this.briefListPromise) {
+      this.briefListPromise = axios
+        .get<BGPBriefRecordSummary[]>(`${API_BASE_URL}/ai/bgp/briefs`)
+        .then((response) => response.data || [])
+        .finally(() => {
+          this.briefListPromise = null
+        })
+    }
+
+    return this.briefListPromise
+  }
+
+  async getBGPBrief(briefId: string): Promise<BGPBriefRecord> {
+    const response = await axios.get<BGPBriefRecord>(`${API_BASE_URL}/ai/bgp/briefs/${briefId}`)
+    return response.data
+  }
+
+  async getLatestBGPBrief(): Promise<BGPBriefRecord | null> {
+    if (!this.latestBriefPromise) {
+      this.latestBriefPromise = axios
+        .get<BGPBriefRecord | null>(`${API_BASE_URL}/ai/bgp/briefs/latest`)
+        .then((response) => response.data)
+        .catch((error) => {
+          if (axios.isAxiosError(error) && error.response?.status === 404) {
+            return null
+          }
+          throw error
+        })
+        .finally(() => {
+          this.latestBriefPromise = null
+        })
+    }
+
+    return this.latestBriefPromise
+  }
 }
diff --git a/frontend/src/services/situational-awareness/mock-gateway.ts b/frontend/src/services/situational-awareness/mock-gateway.ts
index 9ac899bf..e73fe066 100644
--- a/frontend/src/services/situational-awareness/mock-gateway.ts
+++ b/frontend/src/services/situational-awareness/mock-gateway.ts
@@ -1,5 +1,11 @@
 import type { SituationalAwarenessGateway } from './port'
-import type { BGPOverviewOptions, BGPOverviewSnapshot } from './types'
+import type {
+  BGPBriefRecord,
+  BGPBriefRecordSummary,
+  BGPOverviewOptions,
+  BGPOverviewSnapshot,
+  BGPSummarySnapshot,
+} from './types'
 
 const EMPTY_SNAPSHOT: BGPOverviewSnapshot = {
   incidents: [],
@@ -29,7 +35,69 @@ const EMPTY_SNAPSHOT: BGPOverviewSnapshot = {
 }
 
 export class MockSituationalAwarenessGateway implements SituationalAwarenessGateway {
+  private readonly brief: BGPBriefRecord = {
+    id: 'mock-bgp-brief-001',
+    title: 'BGP AI 简报',
+    provider: 'mock',
+    model: 'mock-brief',
+    request_id: 'mock-bgp-brief',
+    generated_at: '2026-04-09T12:00:00+08:00',
+    content_markdown: [
+      '# BGP 态势简报',
+      '',
+      '## 当前判断',
+      '',
+      '- 当前 BGP 态势以高严重度事件为主。',
+      '- 建议优先核查活跃 incidents 涉及的受影响前缀与重点观测站。',
+      '',
+      '## 值班建议',
+      '',
+      '1. 先确认高严重度 incident 是否持续活跃。',
+      '2. 对照重点 collector 的近 24h 波动，避免将控制平面噪声误判为真实业务中断。',
+    ].join('\n'),
+  }
+
   async getBGPOverview(_options: BGPOverviewOptions = {}): Promise<BGPOverviewSnapshot> {
     return EMPTY_SNAPSHOT
   }
+
+  async getBGPSummary(): Promise<BGPSummarySnapshot> {
+    return {
+      incidentSummary: EMPTY_SNAPSHOT.incidentSummary,
+      eventSummary: EMPTY_SNAPSHOT.eventSummary,
+      collectorSummary: EMPTY_SNAPSHOT.collectorSummary,
+    }
+  }
+
+  async getBGPCollectors() {
+    return EMPTY_SNAPSHOT.collectors
+  }
+
+  async getBGPIncidents() {
+    return EMPTY_SNAPSHOT.incidents
+  }
+
+  async getBGPAnomalies() {
+    return EMPTY_SNAPSHOT.anomalies
+  }
+
+  async getBGPEvents() {
+    return EMPTY_SNAPSHOT.events
+  }
+
+  async generateBGPBrief(): Promise<BGPBriefRecord> {
+    return this.brief
+  }
+
+  async listBGPBriefs(): Promise<BGPBriefRecordSummary[]> {
+    return [this.brief]
+  }
+
+  async getBGPBrief(_briefId: string): Promise<BGPBriefRecord> {
+    return this.brief
+  }
+
+  async getLatestBGPBrief(): Promise<BGPBriefRecord | null> {
+    return this.brief
+  }
 }
diff --git a/frontend/src/services/situational-awareness/port.ts b/frontend/src/services/situational-awareness/port.ts
index 358b7dde..1a0f0a4c 100644
--- a/frontend/src/services/situational-awareness/port.ts
+++ b/frontend/src/services/situational-awareness/port.ts
@@ -1,5 +1,24 @@
-import type { BGPOverviewOptions, BGPOverviewSnapshot } from './types'
+import type {
+  BGPAnomaly,
+  BGPBriefRecord,
+  BGPBriefRecordSummary,
+  BGPCollectorCoverage,
+  BGPEvent,
+  BGPIncident,
+  BGPOverviewOptions,
+  BGPOverviewSnapshot,
+  BGPSummarySnapshot,
+} from './types'
 
 export interface SituationalAwarenessGateway {
   getBGPOverview(options?: BGPOverviewOptions): Promise<BGPOverviewSnapshot>
+  getBGPSummary(): Promise<BGPSummarySnapshot>
+  getBGPCollectors(): Promise<BGPCollectorCoverage[]>
+  getBGPIncidents(pageSize?: number): Promise<BGPIncident[]>
+  getBGPAnomalies(pageSize?: number): Promise<BGPAnomaly[]>
+  getBGPEvents(pageSize?: number): Promise<BGPEvent[]>
+  generateBGPBrief(): Promise<BGPBriefRecord>
+  listBGPBriefs(): Promise<BGPBriefRecordSummary[]>
+  getBGPBrief(briefId: string): Promise<BGPBriefRecord>
+  getLatestBGPBrief(): Promise<BGPBriefRecord | null>
 }
diff --git a/frontend/src/services/situational-awareness/types.ts b/frontend/src/services/situational-awareness/types.ts
index 41683b7e..4279e3e1 100644
--- a/frontend/src/services/situational-awareness/types.ts
+++ b/frontend/src/services/situational-awareness/types.ts
@@ -105,8 +105,43 @@ export interface BGPOverviewSnapshot {
   collectorSummary: CollectorSummary | null
 }
 
+export interface BGPSummarySnapshot {
+  incidentSummary: Summary | null
+  eventSummary: EventSummary | null
+  collectorSummary: CollectorSummary | null
+}
+
 export interface BGPOverviewOptions {
   incidentPageSize?: number
   anomalyPageSize?: number
   eventPageSize?: number
 }
+
+export interface AIContentBlock {
+  type: string
+  text?: string | null
+  thinking?: string | null
+}
+
+export interface AnalysisResponse {
+  provider: string
+  model: string
+  content: string
+  content_blocks: AIContentBlock[]
+  text_blocks: string[]
+  thinking_blocks: string[]
+  raw_response: Record<string, unknown>
+}
+
+export interface BGPBriefRecordSummary {
+  id: string
+  title: string
+  provider: string
+  model: string
+  request_id?: string | null
+  generated_at: string
+}
+
+export interface BGPBriefRecord extends BGPBriefRecordSummary {
+  content_markdown: string
+}
diff --git a/pyproject.toml b/pyproject.toml
index 3d7d703e..fc75212f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "planet"
-version = "0.24.4"
+version = "0.24.5"
 description = "智能星球计划 - 态势感知系统"
 requires-python = ">=3.14"
 dependencies = [
diff --git a/rules.md b/rules.md
index 9f16df9a..cce03fa5 100644
--- a/rules.md
+++ b/rules.md
@@ -224,3 +224,18 @@ class BaseCollector:
 - Dependency injection for testability
 - Feature flags for incomplete features
 - Use config files for environment-specific settings
+
+---
+
+## Query Performance - MANDATORY
+
+- **NEVER** load whole tables into Python just to do filtering, pagination, counting, dedupe, or summary aggregation
+- Filters, sorting, pagination, `count`, `distinct`, and grouped statistics **MUST** be pushed down to the database whenever the ORM/query builder can express them
+- Summary/dashboard endpoints should prefer dedicated aggregate queries or aggregate endpoints, not multiple full-table scans
+- For hot paths, avoid selecting large JSON/text payload columns unless the response really needs them
+- If an endpoint returns a list, default to database-side pagination instead of `scalars().all()` followed by Python slicing
+- When you suspect a query is slow, first check for:
+  - full-table ORM loads
+  - Python-side post-filtering
+  - repeated summary queries that can be merged
+  - repeated per-request recomputation that should be cached or aggregated once
diff --git a/uv.lock b/uv.lock
index 6107b29e..e99f3d62 100644
--- a/uv.lock
+++ b/uv.lock
@@ -475,7 +475,7 @@ wheels = [
 
 [[package]]
 name = "planet"
-version = "0.24.4"
+version = "0.24.5"
 source = { virtual = "." }
 dependencies = [
     { name = "aiofiles" },