validation core as a dependency2

common/build.rs

@@ -64,6 +64,70 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             ".komp_ac.table_validation.ReplaceTableValidationResponse",
             "#[derive(serde::Serialize, serde::Deserialize)]",
         )
+        .type_attribute(
+            ".komp_ac.table_validation.ValidationRuleDefinition",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ValidationSetDefinition",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.UpsertValidationRuleRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.UpsertValidationRuleResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ListValidationRulesRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ListValidationRulesResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.DeleteValidationRuleRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.DeleteValidationRuleResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.UpsertValidationSetRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.UpsertValidationSetResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ListValidationSetsRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ListValidationSetsResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.DeleteValidationSetRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.DeleteValidationSetResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ApplyValidationSetRequest",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
+        .type_attribute(
+            ".komp_ac.table_validation.ApplyValidationSetResponse",
+            "#[derive(serde::Serialize, serde::Deserialize)]",
+        )
         // Enum -> readable strings in JSON ("BYTES", "DISPLAY_WIDTH")
         .type_attribute(
             ".komp_ac.table_validation.CountMode",

common/proto/table_validation.proto

@@ -178,6 +178,19 @@ service TableValidationService {
 
   // Replace the full validation definition set for a table in one transaction.
   rpc ReplaceTableValidation(ReplaceTableValidationRequest) returns (ReplaceTableValidationResponse);
+
+  // Reusable named rule fragments.
+  rpc UpsertValidationRule(UpsertValidationRuleRequest) returns (UpsertValidationRuleResponse);
+  rpc ListValidationRules(ListValidationRulesRequest) returns (ListValidationRulesResponse);
+  rpc DeleteValidationRule(DeleteValidationRuleRequest) returns (DeleteValidationRuleResponse);
+
+  // Reusable named sets composed from rules.
+  rpc UpsertValidationSet(UpsertValidationSetRequest) returns (UpsertValidationSetResponse);
+  rpc ListValidationSets(ListValidationSetsRequest) returns (ListValidationSetsResponse);
+  rpc DeleteValidationSet(DeleteValidationSetRequest) returns (DeleteValidationSetResponse);
+
+  // Snapshot a reusable set onto a concrete table field.
+  rpc ApplyValidationSet(ApplyValidationSetRequest) returns (ApplyValidationSetResponse);
 }
 
 message UpdateFieldValidationRequest {
@@ -204,3 +217,89 @@ message ReplaceTableValidationResponse {
   bool success = 1;
   string message = 2;
 }
+
+message ValidationRuleDefinition {
+  string name = 1;
+  optional string description = 2;
+
+  // Reusable rule fragment. dataKey is ignored by the server for reusable rules.
+  FieldValidation validation = 3;
+}
+
+message ValidationSetDefinition {
+  string name = 1;
+  optional string description = 2;
+  repeated string ruleNames = 3;
+
+  // Server-resolved snapshot of all rules in ruleNames order.
+  FieldValidation resolvedValidation = 4;
+}
+
+message UpsertValidationRuleRequest {
+  string profileName = 1;
+  ValidationRuleDefinition rule = 2;
+}
+
+message UpsertValidationRuleResponse {
+  bool success = 1;
+  string message = 2;
+}
+
+message ListValidationRulesRequest {
+  string profileName = 1;
+}
+
+message ListValidationRulesResponse {
+  repeated ValidationRuleDefinition rules = 1;
+}
+
+message DeleteValidationRuleRequest {
+  string profileName = 1;
+  string name = 2;
+}
+
+message DeleteValidationRuleResponse {
+  bool success = 1;
+  string message = 2;
+}
+
+message UpsertValidationSetRequest {
+  string profileName = 1;
+  ValidationSetDefinition set = 2;
+}
+
+message UpsertValidationSetResponse {
+  bool success = 1;
+  string message = 2;
+}
+
+message ListValidationSetsRequest {
+  string profileName = 1;
+}
+
+message ListValidationSetsResponse {
+  repeated ValidationSetDefinition sets = 1;
+}
+
+message DeleteValidationSetRequest {
+  string profileName = 1;
+  string name = 2;
+}
+
+message DeleteValidationSetResponse {
+  bool success = 1;
+  string message = 2;
+}
+
+message ApplyValidationSetRequest {
+  string profileName = 1;
+  string tableName = 2;
+  string dataKey = 3;
+  string setName = 4;
+}
+
+message ApplyValidationSetResponse {
+  bool success = 1;
+  string message = 2;
+  FieldValidation validation = 3;
+}

common/src/proto/komp_ac.table_validation.rs

@@ -206,6 +206,140 @@ pub struct ReplaceTableValidationResponse {
     #[prost(string, tag = "2")]
     pub message: ::prost::alloc::string::String,
 }
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ValidationRuleDefinition {
+    #[prost(string, tag = "1")]
+    pub name: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "2")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
+    /// Reusable rule fragment. dataKey is ignored by the server for reusable rules.
+    #[prost(message, optional, tag = "3")]
+    pub validation: ::core::option::Option<FieldValidation>,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ValidationSetDefinition {
+    #[prost(string, tag = "1")]
+    pub name: ::prost::alloc::string::String,
+    #[prost(string, optional, tag = "2")]
+    pub description: ::core::option::Option<::prost::alloc::string::String>,
+    #[prost(string, repeated, tag = "3")]
+    pub rule_names: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+    /// Server-resolved snapshot of all rules in ruleNames order.
+    #[prost(message, optional, tag = "4")]
+    pub resolved_validation: ::core::option::Option<FieldValidation>,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct UpsertValidationRuleRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+    #[prost(message, optional, tag = "2")]
+    pub rule: ::core::option::Option<ValidationRuleDefinition>,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct UpsertValidationRuleResponse {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListValidationRulesRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListValidationRulesResponse {
+    #[prost(message, repeated, tag = "1")]
+    pub rules: ::prost::alloc::vec::Vec<ValidationRuleDefinition>,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct DeleteValidationRuleRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub name: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct DeleteValidationRuleResponse {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct UpsertValidationSetRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+    #[prost(message, optional, tag = "2")]
+    pub set: ::core::option::Option<ValidationSetDefinition>,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct UpsertValidationSetResponse {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListValidationSetsRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ListValidationSetsResponse {
+    #[prost(message, repeated, tag = "1")]
+    pub sets: ::prost::alloc::vec::Vec<ValidationSetDefinition>,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct DeleteValidationSetRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub name: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct DeleteValidationSetResponse {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ApplyValidationSetRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub table_name: ::prost::alloc::string::String,
+    #[prost(string, tag = "3")]
+    pub data_key: ::prost::alloc::string::String,
+    #[prost(string, tag = "4")]
+    pub set_name: ::prost::alloc::string::String,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ApplyValidationSetResponse {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+    #[prost(message, optional, tag = "3")]
+    pub validation: ::core::option::Option<FieldValidation>,
+}
 /// Character length counting mode
 #[derive(serde::Serialize, serde::Deserialize)]
 #[serde(rename_all = "SCREAMING_SNAKE_CASE")]
@@ -509,6 +643,212 @@ pub mod table_validation_service_client {
                 );
             self.inner.unary(req, path, codec).await
         }
+        /// Reusable named rule fragments.
+        pub async fn upsert_validation_rule(
+            &mut self,
+            request: impl tonic::IntoRequest<super::UpsertValidationRuleRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::UpsertValidationRuleResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/UpsertValidationRule",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "UpsertValidationRule",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn list_validation_rules(
+            &mut self,
+            request: impl tonic::IntoRequest<super::ListValidationRulesRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListValidationRulesResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/ListValidationRules",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "ListValidationRules",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn delete_validation_rule(
+            &mut self,
+            request: impl tonic::IntoRequest<super::DeleteValidationRuleRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::DeleteValidationRuleResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/DeleteValidationRule",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "DeleteValidationRule",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        /// Reusable named sets composed from rules.
+        pub async fn upsert_validation_set(
+            &mut self,
+            request: impl tonic::IntoRequest<super::UpsertValidationSetRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::UpsertValidationSetResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/UpsertValidationSet",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "UpsertValidationSet",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn list_validation_sets(
+            &mut self,
+            request: impl tonic::IntoRequest<super::ListValidationSetsRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListValidationSetsResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/ListValidationSets",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "ListValidationSets",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn delete_validation_set(
+            &mut self,
+            request: impl tonic::IntoRequest<super::DeleteValidationSetRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::DeleteValidationSetResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/DeleteValidationSet",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "DeleteValidationSet",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        /// Snapshot a reusable set onto a concrete table field.
+        pub async fn apply_validation_set(
+            &mut self,
+            request: impl tonic::IntoRequest<super::ApplyValidationSetRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ApplyValidationSetResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic::codec::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_validation.TableValidationService/ApplyValidationSet",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_validation.TableValidationService",
+                        "ApplyValidationSet",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
     }
 }
 /// Generated server implementations.
@@ -547,6 +887,58 @@ pub mod table_validation_service_server {
             tonic::Response<super::ReplaceTableValidationResponse>,
             tonic::Status,
         >;
+        /// Reusable named rule fragments.
+        async fn upsert_validation_rule(
+            &self,
+            request: tonic::Request<super::UpsertValidationRuleRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::UpsertValidationRuleResponse>,
+            tonic::Status,
+        >;
+        async fn list_validation_rules(
+            &self,
+            request: tonic::Request<super::ListValidationRulesRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListValidationRulesResponse>,
+            tonic::Status,
+        >;
+        async fn delete_validation_rule(
+            &self,
+            request: tonic::Request<super::DeleteValidationRuleRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::DeleteValidationRuleResponse>,
+            tonic::Status,
+        >;
+        /// Reusable named sets composed from rules.
+        async fn upsert_validation_set(
+            &self,
+            request: tonic::Request<super::UpsertValidationSetRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::UpsertValidationSetResponse>,
+            tonic::Status,
+        >;
+        async fn list_validation_sets(
+            &self,
+            request: tonic::Request<super::ListValidationSetsRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListValidationSetsResponse>,
+            tonic::Status,
+        >;
+        async fn delete_validation_set(
+            &self,
+            request: tonic::Request<super::DeleteValidationSetRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::DeleteValidationSetResponse>,
+            tonic::Status,
+        >;
+        /// Snapshot a reusable set onto a concrete table field.
+        async fn apply_validation_set(
+            &self,
+            request: tonic::Request<super::ApplyValidationSetRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ApplyValidationSetResponse>,
+            tonic::Status,
+        >;
     }
     /// Service for storing and fetching field-validation definitions.
     #[derive(Debug)]
@@ -777,6 +1169,353 @@ pub mod table_validation_service_server {
                     };
                     Box::pin(fut)
                 }
+                "/komp_ac.table_validation.TableValidationService/UpsertValidationRule" => {
+                    #[allow(non_camel_case_types)]
+                    struct UpsertValidationRuleSvc<T: TableValidationService>(
+                        pub Arc<T>,
+                    );
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::UpsertValidationRuleRequest>
+                    for UpsertValidationRuleSvc<T> {
+                        type Response = super::UpsertValidationRuleResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::UpsertValidationRuleRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::upsert_validation_rule(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = UpsertValidationRuleSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.table_validation.TableValidationService/ListValidationRules" => {
+                    #[allow(non_camel_case_types)]
+                    struct ListValidationRulesSvc<T: TableValidationService>(pub Arc<T>);
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::ListValidationRulesRequest>
+                    for ListValidationRulesSvc<T> {
+                        type Response = super::ListValidationRulesResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::ListValidationRulesRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::list_validation_rules(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ListValidationRulesSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.table_validation.TableValidationService/DeleteValidationRule" => {
+                    #[allow(non_camel_case_types)]
+                    struct DeleteValidationRuleSvc<T: TableValidationService>(
+                        pub Arc<T>,
+                    );
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::DeleteValidationRuleRequest>
+                    for DeleteValidationRuleSvc<T> {
+                        type Response = super::DeleteValidationRuleResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::DeleteValidationRuleRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::delete_validation_rule(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = DeleteValidationRuleSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.table_validation.TableValidationService/UpsertValidationSet" => {
+                    #[allow(non_camel_case_types)]
+                    struct UpsertValidationSetSvc<T: TableValidationService>(pub Arc<T>);
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::UpsertValidationSetRequest>
+                    for UpsertValidationSetSvc<T> {
+                        type Response = super::UpsertValidationSetResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::UpsertValidationSetRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::upsert_validation_set(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = UpsertValidationSetSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.table_validation.TableValidationService/ListValidationSets" => {
+                    #[allow(non_camel_case_types)]
+                    struct ListValidationSetsSvc<T: TableValidationService>(pub Arc<T>);
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::ListValidationSetsRequest>
+                    for ListValidationSetsSvc<T> {
+                        type Response = super::ListValidationSetsResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::ListValidationSetsRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::list_validation_sets(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ListValidationSetsSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.table_validation.TableValidationService/DeleteValidationSet" => {
+                    #[allow(non_camel_case_types)]
+                    struct DeleteValidationSetSvc<T: TableValidationService>(pub Arc<T>);
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::DeleteValidationSetRequest>
+                    for DeleteValidationSetSvc<T> {
+                        type Response = super::DeleteValidationSetResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::DeleteValidationSetRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::delete_validation_set(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = DeleteValidationSetSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.table_validation.TableValidationService/ApplyValidationSet" => {
+                    #[allow(non_camel_case_types)]
+                    struct ApplyValidationSetSvc<T: TableValidationService>(pub Arc<T>);
+                    impl<
+                        T: TableValidationService,
+                    > tonic::server::UnaryService<super::ApplyValidationSetRequest>
+                    for ApplyValidationSetSvc<T> {
+                        type Response = super::ApplyValidationSetResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::ApplyValidationSetRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableValidationService>::apply_validation_set(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ApplyValidationSetSvc(inner);
+                        let codec = tonic::codec::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
                 _ => {
                     Box::pin(async move {
                         let mut response = http::Response::new(

validation-core/Cargo.toml

@@ -4,7 +4,7 @@ version.workspace = true
 edition.workspace = true
 license.workspace = true
 authors.workspace = true
-description = "Shared validation primitives, recipes, and package metadata."
+description = "Shared validation primitives, rules, and sets."
 repository.workspace = true
 
 [dependencies]

validation-core/docs/architecture/validation.md

@@ -5,7 +5,7 @@ Validation is split into three ownership layers.
 ```mermaid
 flowchart LR
     Server[server<br/>stores simple settings<br/>binds table fields<br/>enforces writes]
-    Core[validation-core<br/>owns meaning<br/>resolves recipes<br/>runs pure validation]
+    Core[validation-core<br/>owns meaning<br/>resolves sets<br/>runs pure validation]
     Canvas[canvas<br/>editor integration<br/>masking while typing<br/>UI feedback]
     Common[common/proto<br/>wire format]
 
@@ -23,13 +23,14 @@ settings mean. `canvas` uses the resolved result for editing behavior.
 ```mermaid
 flowchart TD
     Settings[ValidationSettings<br/>serializable data]
-    Recipe[ValidationRecipe<br/>named reusable settings]
+    Rule[ValidationRule<br/>named reusable fragment]
-    Package[ValidationPackage<br/>distributable recipes]
+    Set[ValidationSet<br/>ordered rules]
     Config[ValidationConfig<br/>resolved runtime config]
     Result[ValidationResult]
 
-    Package --> Recipe
+    Rule --> Settings
-    Recipe --> Settings
+    Set --> Rule
+    Set --> Settings
     Settings --> Config
     Config --> Result
 ```
@@ -50,30 +51,32 @@ sequenceDiagram
     Client->>Client: canvas editing, masks, errors
 ```
 
-## Future Package Flow
+## Set Flow
 
 ```mermaid
 flowchart LR
-    Registry[validation package registry]
+    RuleA[digits-only rule]
-    Package[phone package]
+    RuleB[phone-length rule]
-    Recipe[phone.e164 recipe]
+    RuleC[phone-mask rule]
+    Set[phone set]
     Assignment[column assignment]
-    Stored[server stored settings<br/>recipe ref + resolved config]
+    Stored[server stored settings<br/>set name + resolved config]
     Runtime[server/canvas runtime]
 
-    Registry --> Package
+    RuleA --> Set
-    Package --> Recipe
+    RuleB --> Set
-    Recipe --> Assignment
+    RuleC --> Set
+    Set --> Assignment
     Assignment --> Stored
     Stored --> Runtime
 ```
 
-The server may store both the recipe reference and the resolved settings:
+The server stores reusable rules and sets, and field application stores a
+resolved snapshot:
 
 ```text
-field customer_phone uses phone.e164@1.0.0
+field customer_phone uses set phone
 resolved settings = {...}
 ```
 
-That keeps package imports inspectable and versioned while preserving stable
+That keeps backend enforcement stable even if the reusable set changes later.
-backend enforcement even if a package changes later.

validation-core/src/config.rs

@@ -2,6 +2,8 @@ use crate::rules::{
     CharacterFilter, CharacterLimits, DisplayMask, PatternFilters, PositionFilter, PositionRange,
 };
 use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+use thiserror::Error;
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct AllowedValues {
@@ -60,6 +62,7 @@ pub enum CharacterFilterSettings {
     Alphanumeric,
     Exact(char),
     OneOf(Vec<char>),
+    Regex(String),
 }
 
 impl CharacterFilterSettings {
@@ -70,6 +73,22 @@ impl CharacterFilterSettings {
             Self::Alphanumeric => CharacterFilter::Alphanumeric,
             Self::Exact(ch) => CharacterFilter::Exact(*ch),
             Self::OneOf(chars) => CharacterFilter::OneOf(chars.clone()),
+            Self::Regex(pattern) => {
+                #[cfg(feature = "regex")]
+                {
+                    match regex::Regex::new(pattern) {
+                        Ok(regex) => CharacterFilter::Custom(Arc::new(move |ch| {
+                            regex.is_match(&ch.to_string())
+                        })),
+                        Err(_) => CharacterFilter::Custom(Arc::new(|_| false)),
+                    }
+                }
+                #[cfg(not(feature = "regex"))]
+                {
+                    let _ = pattern;
+                    CharacterFilter::Custom(Arc::new(|_| false))
+                }
+            }
         }
     }
 }
@@ -126,6 +145,68 @@ impl ValidationSettings {
             external_validation_enabled: self.external_validation_enabled,
         }
     }
+
+    pub fn merge_rules<'a>(
+        rules: impl IntoIterator<Item = &'a ValidationSettings>,
+    ) -> Result<Self, ValidationMergeError> {
+        let mut merged = ValidationSettings::default();
+
+        for rule in rules {
+            merged.merge_rule(rule)?;
+        }
+
+        Ok(merged)
+    }
+
+    pub fn merge_rule(&mut self, rule: &ValidationSettings) -> Result<(), ValidationMergeError> {
+        self.required |= rule.required;
+        self.external_validation_enabled |= rule.external_validation_enabled;
+
+        merge_singleton(
+            "character_limits",
+            &mut self.character_limits,
+            &rule.character_limits,
+        )?;
+        merge_singleton("allowed_values", &mut self.allowed_values, &rule.allowed_values)?;
+        merge_singleton("display_mask", &mut self.display_mask, &rule.display_mask)?;
+        merge_singleton("formatter", &mut self.formatter, &rule.formatter)?;
+
+        if let Some(pattern) = &rule.pattern {
+            match &mut self.pattern {
+                Some(existing) => {
+                    existing.filters.extend(pattern.filters.clone());
+                    if existing.description.is_none() {
+                        existing.description = pattern.description.clone();
+                    }
+                }
+                None => self.pattern = Some(pattern.clone()),
+            }
+        }
+
+        Ok(())
+    }
+}
+
+fn merge_singleton<T: Clone>(
+    field_name: &'static str,
+    target: &mut Option<T>,
+    source: &Option<T>,
+) -> Result<(), ValidationMergeError> {
+    if let Some(source) = source {
+        if target.is_some() {
+            return Err(ValidationMergeError::DuplicateSingleton { field_name });
+        }
+
+        *target = Some(source.clone());
+    }
+
+    Ok(())
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Error)]
+pub enum ValidationMergeError {
+    #[error("validation set contains more than one rule configuring {field_name}")]
+    DuplicateSingleton { field_name: &'static str },
 }
 
 #[derive(Debug, Clone, Default)]

validation-core/src/lib.rs

@@ -1,16 +1,14 @@
 pub mod config;
-pub mod recipe;
 pub mod rules;
+pub mod set;
 
 pub use config::{
     AllowedValues, CharacterFilterSettings, FormatterOption, FormatterSettings, PatternSettings,
-    PositionFilterSettings, ValidationConfig, ValidationResult, ValidationSettings,
+    PositionFilterSettings, ValidationConfig, ValidationMergeError, ValidationResult,
-};
+    ValidationSettings,
-pub use recipe::{
-    AppliedValidation, PackageId, PackageRequirement, RecipeId, RecipeReference,
-    ValidationPackage, ValidationRecipe,
 };
 pub use rules::{
     count_text, CharacterFilter, CharacterLimits, CountMode, DisplayMask, LimitCheckResult,
     MaskDisplayMode, PatternFilters, PositionFilter, PositionRange,
 };
+pub use set::{AppliedValidation, ValidationRule, ValidationSet};

validation-core/src/recipe.rs

@@ -1,63 +0,0 @@
-use crate::{ValidationConfig, ValidationSettings};
-use serde::{Deserialize, Serialize};
-
-#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct PackageId(pub String);
-
-#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct RecipeId(pub String);
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct ValidationRecipe {
-    pub id: RecipeId,
-    pub name: String,
-    pub description: Option<String>,
-    pub settings: ValidationSettings,
-}
-
-impl ValidationRecipe {
-    pub fn resolve(&self) -> ValidationConfig {
-        self.settings.resolve()
-    }
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct ValidationPackage {
-    pub id: PackageId,
-    pub name: String,
-    pub version: String,
-    pub description: Option<String>,
-    pub recipes: Vec<ValidationRecipe>,
-    pub dependencies: Vec<PackageRequirement>,
-}
-
-impl ValidationPackage {
-    pub fn recipe(&self, id: &RecipeId) -> Option<&ValidationRecipe> {
-        self.recipes.iter().find(|recipe| &recipe.id == id)
-    }
-}
-
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct PackageRequirement {
-    pub package_id: PackageId,
-    pub version_requirement: String,
-}
-
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct RecipeReference {
-    pub package_id: PackageId,
-    pub recipe_id: RecipeId,
-    pub version: String,
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct AppliedValidation {
-    pub source: Option<RecipeReference>,
-    pub settings: ValidationSettings,
-}
-
-impl AppliedValidation {
-    pub fn resolve(&self) -> ValidationConfig {
-        self.settings.resolve()
-    }
-}

validation-core/src/rules/character_limits.rs

@@ -73,6 +73,26 @@ impl CharacterLimits {
             count_mode: CountMode::default(),
         }
     }
+
+    /// Create new character limits with just minimum length
+    pub fn new_min(min_length: usize) -> Self {
+        Self {
+            max_length: None,
+            min_length: Some(min_length),
+            warning_threshold: None,
+            count_mode: CountMode::default(),
+        }
+    }
+
+    /// Create new character limits with only a warning threshold.
+    pub fn new_warning(threshold: usize) -> Self {
+        Self {
+            max_length: None,
+            min_length: None,
+            warning_threshold: Some(threshold),
+            count_mode: CountMode::default(),
+        }
+    }
     
     /// Set warning threshold (when to show warning before hitting limit)
     pub fn with_warning_threshold(mut self, threshold: usize) -> Self {

validation-core/src/rules/display_mask.rs

@@ -237,6 +237,11 @@ impl DisplayMask {
         &self.pattern
     }
 
+    /// Get the input placeholder character
+    pub fn input_char(&self) -> char {
+        self.input_char
+    }
+
     /// Get the position of the first input character in the pattern
     pub fn first_input_position(&self) -> usize {
         for (pos, ch) in self.pattern.chars().enumerate() {

validation-core/src/set.rs

@@ -0,0 +1,118 @@
+use crate::{ValidationConfig, ValidationMergeError, ValidationSettings};
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ValidationRule {
+    pub name: String,
+    pub description: Option<String>,
+    pub settings: ValidationSettings,
+}
+
+impl ValidationRule {
+    pub fn resolve(&self) -> ValidationConfig {
+        self.settings.resolve()
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ValidationSet {
+    pub name: String,
+    pub description: Option<String>,
+    pub rules: Vec<ValidationRule>,
+}
+
+impl ValidationSet {
+    pub fn resolve_settings(&self) -> Result<ValidationSettings, ValidationMergeError> {
+        ValidationSettings::merge_rules(self.rules.iter().map(|rule| &rule.settings))
+    }
+
+    pub fn resolve(&self) -> Result<ValidationConfig, ValidationMergeError> {
+        Ok(self.resolve_settings()?.resolve())
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AppliedValidation {
+    pub set_name: Option<String>,
+    pub settings: ValidationSettings,
+}
+
+impl AppliedValidation {
+    pub fn resolve(&self) -> ValidationConfig {
+        self.settings.resolve()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::{
+        CharacterFilterSettings, CharacterLimits, PatternSettings, PositionFilterSettings,
+        PositionRange,
+    };
+
+    #[test]
+    fn validation_set_merges_rule_fragments() {
+        let set = ValidationSet {
+            name: "phone".to_string(),
+            description: None,
+            rules: vec![
+                ValidationRule {
+                    name: "phone-length".to_string(),
+                    description: None,
+                    settings: ValidationSettings {
+                        character_limits: Some(CharacterLimits::new_range(10, 15)),
+                        ..ValidationSettings::default()
+                    },
+                },
+                ValidationRule {
+                    name: "digits-only".to_string(),
+                    description: None,
+                    settings: ValidationSettings {
+                        pattern: Some(PatternSettings {
+                            filters: vec![PositionFilterSettings {
+                                positions: PositionRange::From(0),
+                                filter: CharacterFilterSettings::Numeric,
+                            }],
+                            description: None,
+                        }),
+                        ..ValidationSettings::default()
+                    },
+                },
+            ],
+        };
+
+        let settings = set.resolve_settings().expect("set should resolve");
+
+        assert!(settings.character_limits.is_some());
+        assert_eq!(settings.pattern.expect("pattern").filters.len(), 1);
+    }
+
+    #[test]
+    fn validation_set_rejects_duplicate_singleton_rules() {
+        let set = ValidationSet {
+            name: "conflict".to_string(),
+            description: None,
+            rules: vec![
+                ValidationRule {
+                    name: "short".to_string(),
+                    description: None,
+                    settings: ValidationSettings {
+                        character_limits: Some(CharacterLimits::new(10)),
+                        ..ValidationSettings::default()
+                    },
+                },
+                ValidationRule {
+                    name: "long".to_string(),
+                    description: None,
+                    settings: ValidationSettings {
+                        character_limits: Some(CharacterLimits::new(20)),
+                        ..ValidationSettings::default()
+                    },
+                },
+            ],
+        };
+
+        assert!(set.resolve_settings().is_err());
+    }
+}