From 691da8dcd035dc60d759ba8900e69f62eeee086c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fredrik=20Adel=C3=B6w?= <freben@spotify.com>
Date: Wed, 13 May 2026 16:02:45 +0200
Subject: [PATCH] add changeset
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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Fredrik Adelöw <freben@spotify.com>
---
 .changeset/fix-filter-predicate-mixed-operator-keys.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/fix-filter-predicate-mixed-operator-keys.md

diff --git a/.changeset/fix-filter-predicate-mixed-operator-keys.md b/.changeset/fix-filter-predicate-mixed-operator-keys.md
new file mode 100644
index 0000000000..143ce4fdb6
--- /dev/null
+++ b/.changeset/fix-filter-predicate-mixed-operator-keys.md
@@ -0,0 +1,5 @@
+---
+'@backstage/filter-predicates': patch
+---
+
+Filter predicates that mix operator keys (`$all`, `$any`, `$not`) with other keys are now rejected. Previously, a predicate like `{ kind: 'API', $not: { 'spec.type': 'dataset' } }` would silently drop the `kind` check. The correct form wraps conditions in `$all`.