diff --git a/internal/app/c2_tools.go b/internal/app/c2_tools.go
index 14853da2..6cca39a3 100644
--- a/internal/app/c2_tools.go
+++ b/internal/app/c2_tools.go
@@ -75,6 +75,7 @@ tcp_reverse 默认仅接受 CSB1 加密 Beacon（AES-GCM + ImplantToken）才登
 				"bind_host":     map[string]interface{}{"type": "string", "description": "绑定地址，默认 127.0.0.1；外网监听常用 0.0.0.0"},
 				"callback_host": map[string]interface{}{"type": "string", "description": "可选：植入端/Payload 回连主机名（公网 IP 或域名）。写入 config_json；生成 oneliner/beacon 时优先于 bind_host。update 时传入空字符串可清除"},
 				"bind_port":     map[string]interface{}{"type": "integer", "description": fmt.Sprintf("绑定端口（create 必填）。须 ≠ %d（当前本服务 Web/API 端口，配置 server.port）", webListenPort), "minimum": 1, "maximum": 65535},
+				"project_id":    map[string]interface{}{"type": "string", "description": "所属项目 ID。create 省略时默认使用当前对话绑定项目；未绑定项目的对话则创建未绑定监听器"},
 				"profile_id":    map[string]interface{}{"type": "string", "description": "Malleable Profile ID"},
 				"remark":        map[string]interface{}{"type": "string", "description": "备注"},
 				"config":        map[string]interface{}{"type": "object", "description": "高级配置（beacon 路径/TLS/OPSEC 等），create/update 可用。tcp_reverse 可选 allow_legacy_shell:true 允许未加密经典 shell（默认 false）"},
@@ -116,6 +117,13 @@ tcp_reverse 默认仅接受 CSB1 加密 Beacon（AES-GCM + ImplantToken）才登
 				cfg = &c2.ListenerConfig{}
 				_ = json.Unmarshal(cfgBytes, cfg)
 			}
+			projectID := strings.TrimSpace(getString(params, "project_id"))
+			if projectID == "" {
+				projectID = mcpEffectiveProjectFilter(ctx, m.DB())
+				if projectID == database.ProjectFilterUnbound {
+					projectID = ""
+				}
+			}
 			input := c2.CreateListenerInput{
 				Name:         getString(params, "name"),
 				Type:         getString(params, "type"),
@@ -123,7 +131,7 @@ tcp_reverse 默认仅接受 CSB1 加密 Beacon（AES-GCM + ImplantToken）才登
 				BindPort:     int(getFloat64(params, "bind_port")),
 				ProfileID:    getString(params, "profile_id"),
 				Remark:       getString(params, "remark"),
-				ProjectID:    strings.TrimSpace(mcp.MCPProjectIDFromContext(ctx)),
+				ProjectID:    projectID,
 				Config:       cfg,
 				CallbackHost: getString(params, "callback_host"),
 			}
diff --git a/internal/app/c2_tools_test.go b/internal/app/c2_tools_test.go
new file mode 100644
index 00000000..b24d2660
--- /dev/null
+++ b/internal/app/c2_tools_test.go
@@ -0,0 +1,69 @@
+package app
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+
+	"cyberstrike-ai/internal/authctx"
+	"cyberstrike-ai/internal/c2"
+	"cyberstrike-ai/internal/database"
+	"cyberstrike-ai/internal/mcp"
+	"cyberstrike-ai/internal/mcp/builtin"
+
+	"go.uber.org/zap"
+)
+
+func TestC2ListenerCreateInheritsConversationProject(t *testing.T) {
+	db, err := database.NewDB(filepath.Join(t.TempDir(), "c2-tools.db"), zap.NewNop())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	user, err := db.CreateRBACUser("c2-agent", "C2 Agent", "hash", true, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	project, err := db.CreateProject(&database.Project{Name: "engagement"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AssignResourceToUser(user.ID, "project", project.ID); err != nil {
+		t.Fatal(err)
+	}
+	conversation, err := db.CreateConversation("project chat", database.ConversationCreateMeta{ProjectID: project.ID})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	principal := authctx.NewPrincipal(user.ID, user.Username, database.RBACScopeAssigned, map[string]bool{
+		"c2:read": true, "c2:write": true,
+	})
+	ctx := authctx.WithPrincipal(mcp.WithMCPConversationID(context.Background(), conversation.ID), principal)
+	server := mcp.NewServer(zap.NewNop())
+	server.SetToolAuthorizer(mcpToolAuthorizer(db))
+	registerC2Tools(server, c2.NewManager(db, zap.NewNop(), t.TempDir()), zap.NewNop(), 8080)
+
+	result, _, err := server.CallTool(ctx, builtin.ToolC2Listener, map[string]interface{}{
+		"action":    "create",
+		"name":      "tcp-reverse-2222",
+		"type":      "tcp_reverse",
+		"bind_host": "0.0.0.0",
+		"bind_port": 2222,
+	})
+	if err != nil || result == nil || result.IsError {
+		t.Fatalf("create listener result=%#v err=%v text=%q", result, err, toolResultText(result))
+	}
+
+	listeners, err := db.ListC2Listeners()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(listeners) != 1 {
+		t.Fatalf("listener count=%d, want 1", len(listeners))
+	}
+	if listeners[0].ProjectID != project.ID {
+		t.Fatalf("listener project_id=%q, want %q", listeners[0].ProjectID, project.ID)
+	}
+}
diff --git a/internal/app/mcp_authorization.go b/internal/app/mcp_authorization.go
index d9947c23..cd933a79 100644
--- a/internal/app/mcp_authorization.go
+++ b/internal/app/mcp_authorization.go
@@ -244,7 +244,20 @@ func authorizeC2Action(ctx context.Context, principal authctx.Principal, db *dat
 		return nil
 	}
 	if id == "" {
-		if action == "create" || action == "list" {
+		if action == "create" {
+			projectID := mcpAuthorizationString(args, "project_id")
+			if projectID == "" {
+				projectID = mcpEffectiveProjectFilter(ctx, db)
+				if projectID == database.ProjectFilterUnbound {
+					projectID = ""
+				}
+			}
+			if projectID != "" && (db == nil || !db.UserCanAccessResource(principal.UserID, principal.ScopeFor(permission), "project", projectID)) {
+				return fmt.Errorf("no access to project %s", projectID)
+			}
+			return nil
+		}
+		if action == "list" {
 			return nil
 		}
 		return fmt.Errorf("missing resource identifier %s", argument)