diff --git a/contrib/semgrep.yml b/contrib/semgrep.yml
new file mode 100644
index 000000000..0cb5b3e1e
--- /dev/null
+++ b/contrib/semgrep.yml
@@ -0,0 +1,11 @@
+rules:
+
+- id: inline-from-impls
+  patterns:
+    - pattern: |-
+        impl From<$F> for $T { fn from(...) -> $SELF { ... } }
+    - pattern-not-regex: "inline"
+  message: Use inline attribute on `From` implementations.
+  languages:
+    - rust
+  severity: ERROR