diff --git a/packages/das/src/api/health.controller.ts b/packages/das/src/api/health.controller.ts
index d2c61e7..e38545e 100644
--- a/packages/das/src/api/health.controller.ts
+++ b/packages/das/src/api/health.controller.ts
@@ -3,7 +3,7 @@ import { ApiOperation, ApiTags } from "@nestjs/swagger";
 import { InjectQueue } from "@nestjs/bullmq";
 import { InjectRepository } from "@nestjs/typeorm";
 import { Queue } from "bullmq";
-import { DataSource, Repository } from "typeorm";
+import { DataSource, Not, IsNull, Repository } from "typeorm";
 import { NoCache } from "../cache";
 import { Repo } from "../entities";
 import { FETCH_QUEUE } from "../queue/constants";
@@ -106,7 +106,10 @@ export class HealthController {
   }
 
   private async listRepoHealth(): Promise<RepoHealth[]> {
+    // Soft-cleared rows (installationId=null after uninstall/remove) are kept
+    // for historical scoring evidence but are no longer tracked.
     const repos = await this.repoRepo.find({
+      where: { installationId: Not(IsNull()) },
       select: ["repoFullName", "lastEventAt"],
     });