diff --git a/agent/tools.go b/agent/tools.go
index a0bd49e..f6adf62 100644
--- a/agent/tools.go
+++ b/agent/tools.go
@@ -696,6 +696,39 @@ func (t *ToolSet) addFinding() actool.CoreTool {
 		})
 }
 
+// updateFindingReport sets/overwrites a finding's detailed Markdown report
+// (findings.report), addressed by the id report_finding returned.
+func (t *ToolSet) updateFindingReport() actool.CoreTool {
+	return writeTool("update_finding_report",
+		"为已登记的漏洞补充/更新【详细报告】。report 传 Markdown 全文(建议含:漏洞概述、影响、复现步骤、证据/PoC、修复建议)。finding_id 传 report_finding 返回的那个 id。整段覆盖该漏洞已有的报告。",
+		obj(map[string]any{
+			"finding_id": idp("目标漏洞 id(report_finding 返回的 id)"),
+			"report":     str("详细报告全文,Markdown 格式"),
+		}, "finding_id", "report"),
+		func(_ context.Context, in json.RawMessage) (actool.Result, error) {
+			var a struct {
+				FindingID json.RawMessage `json:"finding_id"`
+				Report    string          `json:"report"`
+			}
+			_ = json.Unmarshal(in, &a)
+			nodeID := pid(a.FindingID)
+			if nodeID <= 0 {
+				return actool.Errorf("finding_id 无效"), nil
+			}
+			if t.ts == nil {
+				return actool.Errorf("update_finding_report 需要任务上下文（exploration store 未初始化）"), nil
+			}
+			n, err := t.ts.SetFindingReport(nodeID, a.Report)
+			if err != nil {
+				return actool.Errorf(err.Error()), nil
+			}
+			if n == 0 {
+				return actool.Errorf(fmt.Sprintf("未找到 finding_id=%d 对应的漏洞记录（先用 report_finding 登记）", nodeID)), nil
+			}
+			return actool.Text(fmt.Sprintf("finding %d report updated (%d chars)", nodeID, len(a.Report))), nil
+		})
+}
+
 // recordFact writes a general exploration RESULT/conclusion (not a vuln, not a
 // new asset) into the EXPLORATION graph, chained to the intent that produced it.
 // This is the home for observations and — importantly — negative results
@@ -1250,7 +1283,7 @@ func (t *ToolSet) PlannerTools() []actool.CoreTool {
 		t.getWorkerOutput(), t.getWorkerTrace(), t.searchAllWorkerTraces(), t.listGoals(), t.addIntent(), t.proveGoal(), t.goalMet(),
 		t.killWorkTool(), t.steerWorkTool(),
 		// report_finding：规划态势研判时若自身已确证漏洞，可直接登记（与 worker 同工具）。
-		t.addFinding(),
+		t.addFinding(), t.updateFindingReport(),
 		// list_companies：查看企业列表 + scope + 资产数（拿 company_id / 理解归属范围）。
 		t.listCompanies(),
 		// add_task_scope：主动把整根域/整公司/某子域/IP 纳入本任务测试范围(覆盖度分母)。
diff --git a/agent/tools_insert.go b/agent/tools_insert.go
index c808988..a0109e7 100644
--- a/agent/tools_insert.go
+++ b/agent/tools_insert.go
@@ -582,7 +582,7 @@ func splitLines(s string) []string {
 func (t *ToolSet) WorkerTools() []actool.CoreTool {
 	return []actool.CoreTool{
 		t.listFindings(), t.listFacts(), t.nodeDetail(),
-		t.addFinding(), t.recordFact(),
+		t.addFinding(), t.updateFindingReport(), t.recordFact(),
 		// cross-work retrieval
 		t.searchAllWorkerTraces(), t.listWorkerTraces(), t.getWorkerTrace(),
 		// asset management (handlers guard nil store internally)
@@ -599,7 +599,7 @@ func (t *ToolSet) MainAgentTools() []actool.CoreTool {
 		t.setGoals(),
 		// asset management (handlers guard nil store internally)
 		t.insertAssets(), t.addCompanyScope(), t.listAssets(),
-		t.addFinding(), t.recordFact(),
+		t.addFinding(), t.updateFindingReport(), t.recordFact(),
 		t.addTaskScope(),
 		// list_untested_assets：按需查本任务范围内未测资产(类型+分页)，自行决定补测。
 		t.listUntestedAssets(),
diff --git a/db/exploration.go b/db/exploration.go
index 00f6024..c3f70a5 100644
--- a/db/exploration.go
+++ b/db/exploration.go
@@ -889,3 +889,9 @@ FROM activity WHERE exploration_id=$1 AND kind<>'thinking' AND id IN (`+strings.
 func (s *ExplorationStore) AddStandaloneFinding(taskID, nodeID int64, vulnclass, name, severity, summary, evidence, worker string, assetIDs []int64) (int64, error) {
 	return s.db.AddFinding(taskID, nodeID, vulnclass, name, severity, summary, evidence, worker, assetIDs)
 }
+
+// SetFindingReport sets a finding's Markdown detail report, addressed by its
+// finding node id (the id report_finding returns). Returns rows affected.
+func (s *ExplorationStore) SetFindingReport(nodeID int64, report string) (int64, error) {
+	return s.db.SetFindingReportByNodeID(nodeID, report)
+}
diff --git a/db/findings.go b/db/findings.go
index 1549e06..b77ac3f 100644
--- a/db/findings.go
+++ b/db/findings.go
@@ -277,6 +277,17 @@ func (d *DB) SetFindingStatus(id int64, status string) (int64, error) {
 	return res.RowsAffected()
 }
 
+// SetFindingReportByNodeID sets the Markdown report on the standalone finding row
+// whose node_id matches — report_finding returns that node id, so an agent tool
+// can address the finding it just created. Returns rows affected (0 when no row).
+func (d *DB) SetFindingReportByNodeID(nodeID int64, report string) (int64, error) {
+	res, err := d.Exec(`UPDATE findings SET report=$1 WHERE node_id=$2`, report, nodeID)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
 // SetFindingSeverity updates one finding's severity in the standalone table AND
 // keeps the originating exploration node's payload in sync (the per-task view
 // reads severity from the node payload, not this table). Returns rows affected