diff --git a/nix/templates/harness-base.nix b/nix/templates/harness-base.nix
index e8f43d1..06b2d6a 100644
--- a/nix/templates/harness-base.nix
+++ b/nix/templates/harness-base.nix
@@ -159,6 +159,19 @@
     '';
   };
 
+  options.hyperhive.forge.keepSubscriptions = lib.mkOption {
+    type = lib.types.bool;
+    default = false;
+    description = ''
+      When true, the forge notification poller will NOT auto-unsubscribe
+      from repo watches after delivering a "subscribed"-reason notification.
+      Set this for agents (e.g. triage) that intentionally consume the full
+      repo notification firehose and must retain broad watch subscriptions.
+      By default agents auto-unsubscribe from repos they no longer actively
+      work in to avoid accumulating firehose noise.
+    '';
+  };
+
   options.hyperhive.claudeMarketplaces = lib.mkOption {
     type = lib.types.listOf lib.types.str;
     default = [ "anthropics/claude-plugins-official" ];
@@ -283,6 +296,8 @@
       # Zero watermark disables proactive compaction; the reactive path
       # (compact-on-overflow) still fires when the session is truly full.
       HIVE_COMPACT_WATERMARK_TOKENS = "0";
+    } // lib.optionalAttrs config.hyperhive.forge.keepSubscriptions {
+      HIVE_FORGE_KEEP_SUBSCRIPTIONS = "1";
     };
 
     boot.isNspawnContainer = true;