From 158b453759adf212d858e516b1c353a91126cf9d Mon Sep 17 00:00:00 2001
From: Pierre-Olivier Mercier <nemunaire@nemunai.re>
Date: Thu, 16 Apr 2026 04:44:45 +0700
Subject: [PATCH] Return StatusUnknown when no servers were actually checked

---
 checker/rule.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/checker/rule.go b/checker/rule.go
index 0844242..85d1e5f 100644
--- a/checker/rule.go
+++ b/checker/rule.go
@@ -98,6 +98,7 @@ func (r *singleCheckRule) Evaluate(ctx context.Context, obs sdk.ObservationGette
 	status := sdk.StatusOK
 	var summaryParts []string
 	failingServers := make([]map[string]string, 0)
+	checked := false
 
 	for _, srv := range report.Servers {
 		item, found := findCheck(srv.Checks, r.checkName)
@@ -113,6 +114,8 @@ func (r *singleCheckRule) Evaluate(ctx context.Context, obs sdk.ObservationGette
 			continue
 		}
 
+		checked = true
+
 		if item.OK {
 			summaryParts = append(summaryParts, fmt.Sprintf("%s: OK", serverLabel(srv)))
 			continue
@@ -129,6 +132,10 @@ func (r *singleCheckRule) Evaluate(ctx context.Context, obs sdk.ObservationGette
 		})
 	}
 
+	if !checked {
+		status = sdk.StatusUnknown
+	}
+
 	return sdk.CheckState{
 		Status:  status,
 		Message: strings.Join(summaryParts, " | "),