Add allowlist of operators for match monitors (#327)

tothmano · web-flow · commit 2f8331c6d382 · 2025-07-03T11:24:55.000+02:00
diff --git a/monitor-data/match-monitors.mdx b/monitor-data/match-monitors.mdx
@@ -24,6 +24,23 @@ To create a match monitor, follow these steps:
 
 You have created a match monitor, and Axiom alerts you about every event that matches the filters you set. Each notification contains the event details as shown in the preview.
 
+<Info>
+If you define your query using APL, you can use the following limited set of tabular operators:
+
+- [extend](/apl/tabular-operators/extend-operator)
+- [extend-valid](/apl/tabular-operators/extend-valid-operator)
+- [parse](/apl/tabular-operators/parse-operator)
+- parse-kv
+- [project](/apl/tabular-operators/project-operator)
+- [project-away](/apl/tabular-operators/project-away-operator)
+- [project-keep](/apl/tabular-operators/project-keep-operator)
+- project-rename
+- [project-reorder](/apl/tabular-operators/project-reorder-operator)
+- [where](/apl/tabular-operators/where-operator)
+
+This restriction only applies to tabular operators.
+</Info>
+
 ## Examples
 
 For real-world use cases, see [Monitor examples](/monitor-data/monitor-examples).
