feat(datatables): DataTables capability for site data table access

Wasm plugins' isolated Postgres role is deliberately denied on core tables, which left no sanctioned path to data_tables/data_table_rows. Adds the datatables.* capability family (get_table_by_key, get_row, list_rows, create_row, update_row_data, find_row_by_field) following the datasources pattern: interface package, ABI proto messages, guest stub, CoreServices wiring, golden round-trip coverage. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
feat(manifest): public_routes + sitemap manifest capability (ADR 0026)
2026-07-12 20:08:14 +08:00 · 2026-07-12 02:41:31 +08:00
26 changed files with 2059 additions and 493 deletions
--- a/abi/proto/v1/capability.proto
+++ b/abi/proto/v1/capability.proto
@ -311,6 +311,79 @@ message DatasourceResult {
  bytes meta_json = 3;
 }

+// --- datatables.* (datatables.DataTables) ---
+
+message DatatablesGetTableByKeyRequest {
+  string table_key = 1;
+}
+
+message DatatablesGetTableByKeyResponse {
+  DataTableInfo table = 1;
+}
+
+message DatatablesGetRowRequest {
+  string row_id = 1; // UUID
+}
+
+message DatatablesGetRowResponse {
+  DataTableRowInfo row = 1;
+}
+
+message DatatablesListRowsRequest {
+  string table_id = 1; // UUID
+  int32 limit = 2;
+  int32 offset = 3;
+}
+
+message DatatablesListRowsResponse {
+  repeated DataTableRowInfo rows = 1;
+}
+
+message DatatablesCreateRowRequest {
+  string table_id = 1; // UUID
+  bytes data_json = 2; // JSON object
+}
+
+message DatatablesCreateRowResponse {
+  DataTableRowInfo row = 1;
+}
+
+message DatatablesUpdateRowDataRequest {
+  string row_id = 1; // UUID
+  bytes data_json = 2; // JSON object
+}
+
+message DatatablesUpdateRowDataResponse {
+  DataTableRowInfo row = 1;
+}
+
+message DatatablesFindRowByFieldRequest {
+  string table_id = 1; // UUID
+  string field = 2;
+  string value = 3;
+}
+
+message DatatablesFindRowByFieldResponse {
+  // Unset when no row matches (the guest maps that to nil, nil).
+  DataTableRowInfo row = 1;
+}
+
+// DataTableInfo mirrors datatables.Table.
+message DataTableInfo {
+  string id = 1; // UUID
+  string table_key = 2;
+  string name = 3;
+  int32 row_count = 4;
+}
+
+// DataTableRowInfo mirrors datatables.Row (data column as JSON bytes).
+message DataTableRowInfo {
+  string id = 1;       // UUID
+  string table_id = 2; // UUID
+  bytes data_json = 3; // JSON object
+  int32 sort_order = 4;
+}
+
 // --- users.* (auth.PublicUsers) ---

 message UsersGetByUsernameRequest {
--- a/abi/proto/v1/manifest.proto
+++ b/abi/proto/v1/manifest.proto
@ -139,6 +139,34 @@ message PluginManifest {
  // than the 10 MB default. Rides the same admin grant as allowed_hosts.
  // Zero means the default.
  uint32 max_response_mb = 35;
+
+  // public_routes declares the site-root paths the plugin serves through its
+  // HTTP handler (ADR 0026, cms repo): exact paths and path prefixes the host
+  // mounts at the public site root, dispatching to HOOK_HANDLE_HTTP with the
+  // full unstripped request path. Like data_dir and allowed_hosts, the source
+  // of truth is plugin.mod; the packer validates and stamps it. Conflict
+  // rules are host-side: core routes always win, between plugins the
+  // first-installed plugin wins, and conflicts are surfaced in the admin UI,
+  // never silently dropped. Empty means the plugin serves HTTP only under
+  // /api/plugins/<name>.
+  repeated PublicRoute public_routes = 36;
+
+  // sitemap requests sitemap contribution: when true the host fetches
+  // entries from the plugin's well-known sitemap endpoint (served by its
+  // HTTP handler) and merges them into the site sitemap. Requires
+  // has_http_handler.
+  bool sitemap = 37;
+}
+
+// PublicRoute is one site-root path claim (see PluginManifest.public_routes).
+message PublicRoute {
+  // Absolute site-root path, e.g. "/area" or "/api/directory". Validated by
+  // the packer: must start with "/", no reserved prefixes ("/admin",
+  // "/api/plugins", "/ws"), no traversal or empty segments.
+  string path = 1;
+  // When true the claim covers every path under path as well (a path-prefix
+  // mount); when false only the exact path is claimed.
+  bool prefix = 2;
 }

 // Dependency mirrors plugin.Dependency.
--- a/abi/v1/capability.pb.go
+++ b/abi/v1/capability.pb.go
--- a/abi/v1/manifest.pb.go
+++ b/abi/v1/manifest.pb.go
@ -135,6 +135,21 @@ type PluginManifest struct {
 	// than the 10 MB default. Rides the same admin grant as allowed_hosts.
 	// Zero means the default.
 	MaxResponseMb uint32 `protobuf:"varint,35,opt,name=max_response_mb,json=maxResponseMb,proto3" json:"max_response_mb,omitempty"`
+	// public_routes declares the site-root paths the plugin serves through its
+	// HTTP handler (ADR 0026, cms repo): exact paths and path prefixes the host
+	// mounts at the public site root, dispatching to HOOK_HANDLE_HTTP with the
+	// full unstripped request path. Like data_dir and allowed_hosts, the source
+	// of truth is plugin.mod; the packer validates and stamps it. Conflict
+	// rules are host-side: core routes always win, between plugins the
+	// first-installed plugin wins, and conflicts are surfaced in the admin UI,
+	// never silently dropped. Empty means the plugin serves HTTP only under
+	// /api/plugins/<name>.
+	PublicRoutes []*PublicRoute `protobuf:"bytes,36,rep,name=public_routes,json=publicRoutes,proto3" json:"public_routes,omitempty"`
+	// sitemap requests sitemap contribution: when true the host fetches
+	// entries from the plugin's well-known sitemap endpoint (served by its
+	// HTTP handler) and merges them into the site sitemap. Requires
+	// has_http_handler.
+	Sitemap       bool `protobuf:"varint,37,opt,name=sitemap,proto3" json:"sitemap,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@ -414,6 +429,78 @@ func (x *PluginManifest) GetMaxResponseMb() uint32 {
 	return 0
 }

+func (x *PluginManifest) GetPublicRoutes() []*PublicRoute {
+	if x != nil {
+		return x.PublicRoutes
+	}
+	return nil
+}
+
+func (x *PluginManifest) GetSitemap() bool {
+	if x != nil {
+		return x.Sitemap
+	}
+	return false
+}
+
+// PublicRoute is one site-root path claim (see PluginManifest.public_routes).
+type PublicRoute struct {
+	state protoimpl.MessageState `protogen:"open.v1"`
+	// Absolute site-root path, e.g. "/area" or "/api/directory". Validated by
+	// the packer: must start with "/", no reserved prefixes ("/admin",
+	// "/api/plugins", "/ws"), no traversal or empty segments.
+	Path string `protobuf:"bytes,1,opt,name=path,proto3" json:"path,omitempty"`
+	// When true the claim covers every path under path as well (a path-prefix
+	// mount); when false only the exact path is claimed.
+	Prefix        bool `protobuf:"varint,2,opt,name=prefix,proto3" json:"prefix,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *PublicRoute) Reset() {
+	*x = PublicRoute{}
+	mi := &file_v1_manifest_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *PublicRoute) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PublicRoute) ProtoMessage() {}
+
+func (x *PublicRoute) ProtoReflect() protoreflect.Message {
+	mi := &file_v1_manifest_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PublicRoute.ProtoReflect.Descriptor instead.
+func (*PublicRoute) Descriptor() ([]byte, []int) {
+	return file_v1_manifest_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *PublicRoute) GetPath() string {
+	if x != nil {
+		return x.Path
+	}
+	return ""
+}
+
+func (x *PublicRoute) GetPrefix() bool {
+	if x != nil {
+		return x.Prefix
+	}
+	return false
+}
+
 // Dependency mirrors plugin.Dependency.
 type Dependency struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
@ -426,7 +513,7 @@ type Dependency struct {

 func (x *Dependency) Reset() {
 	*x = Dependency{}
-	mi := &file_v1_manifest_proto_msgTypes[1]
+	mi := &file_v1_manifest_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -438,7 +525,7 @@ func (x *Dependency) String() string {
 func (*Dependency) ProtoMessage() {}

 func (x *Dependency) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[1]
+	mi := &file_v1_manifest_proto_msgTypes[2]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -451,7 +538,7 @@ func (x *Dependency) ProtoReflect() protoreflect.Message {

 // Deprecated: Use Dependency.ProtoReflect.Descriptor instead.
 func (*Dependency) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{1}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{2}
 }

 func (x *Dependency) GetPlugin() string {
@ -494,7 +581,7 @@ type BlockMeta struct {

 func (x *BlockMeta) Reset() {
 	*x = BlockMeta{}
-	mi := &file_v1_manifest_proto_msgTypes[2]
+	mi := &file_v1_manifest_proto_msgTypes[3]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -506,7 +593,7 @@ func (x *BlockMeta) String() string {
 func (*BlockMeta) ProtoMessage() {}

 func (x *BlockMeta) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[2]
+	mi := &file_v1_manifest_proto_msgTypes[3]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -519,7 +606,7 @@ func (x *BlockMeta) ProtoReflect() protoreflect.Message {

 // Deprecated: Use BlockMeta.ProtoReflect.Descriptor instead.
 func (*BlockMeta) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{2}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{3}
 }

 func (x *BlockMeta) GetKey() string {
@ -585,7 +672,7 @@ type BlockTemplateOverride struct {

 func (x *BlockTemplateOverride) Reset() {
 	*x = BlockTemplateOverride{}
-	mi := &file_v1_manifest_proto_msgTypes[3]
+	mi := &file_v1_manifest_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -597,7 +684,7 @@ func (x *BlockTemplateOverride) String() string {
 func (*BlockTemplateOverride) ProtoMessage() {}

 func (x *BlockTemplateOverride) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[3]
+	mi := &file_v1_manifest_proto_msgTypes[4]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -610,7 +697,7 @@ func (x *BlockTemplateOverride) ProtoReflect() protoreflect.Message {

 // Deprecated: Use BlockTemplateOverride.ProtoReflect.Descriptor instead.
 func (*BlockTemplateOverride) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{3}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{4}
 }

 func (x *BlockTemplateOverride) GetTemplateKey() string {
@ -646,7 +733,7 @@ type SystemTemplateMeta struct {

 func (x *SystemTemplateMeta) Reset() {
 	*x = SystemTemplateMeta{}
-	mi := &file_v1_manifest_proto_msgTypes[4]
+	mi := &file_v1_manifest_proto_msgTypes[5]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -658,7 +745,7 @@ func (x *SystemTemplateMeta) String() string {
 func (*SystemTemplateMeta) ProtoMessage() {}

 func (x *SystemTemplateMeta) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[4]
+	mi := &file_v1_manifest_proto_msgTypes[5]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -671,7 +758,7 @@ func (x *SystemTemplateMeta) ProtoReflect() protoreflect.Message {

 // Deprecated: Use SystemTemplateMeta.ProtoReflect.Descriptor instead.
 func (*SystemTemplateMeta) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{4}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{5}
 }

 func (x *SystemTemplateMeta) GetKey() string {
@ -710,7 +797,7 @@ type PageTemplateMeta struct {

 func (x *PageTemplateMeta) Reset() {
 	*x = PageTemplateMeta{}
-	mi := &file_v1_manifest_proto_msgTypes[5]
+	mi := &file_v1_manifest_proto_msgTypes[6]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -722,7 +809,7 @@ func (x *PageTemplateMeta) String() string {
 func (*PageTemplateMeta) ProtoMessage() {}

 func (x *PageTemplateMeta) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[5]
+	mi := &file_v1_manifest_proto_msgTypes[6]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -735,7 +822,7 @@ func (x *PageTemplateMeta) ProtoReflect() protoreflect.Message {

 // Deprecated: Use PageTemplateMeta.ProtoReflect.Descriptor instead.
 func (*PageTemplateMeta) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{5}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{6}
 }

 func (x *PageTemplateMeta) GetSystemKey() string {
@ -786,7 +873,7 @@ type AdminPage struct {

 func (x *AdminPage) Reset() {
 	*x = AdminPage{}
-	mi := &file_v1_manifest_proto_msgTypes[6]
+	mi := &file_v1_manifest_proto_msgTypes[7]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -798,7 +885,7 @@ func (x *AdminPage) String() string {
 func (*AdminPage) ProtoMessage() {}

 func (x *AdminPage) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[6]
+	mi := &file_v1_manifest_proto_msgTypes[7]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -811,7 +898,7 @@ func (x *AdminPage) ProtoReflect() protoreflect.Message {

 // Deprecated: Use AdminPage.ProtoReflect.Descriptor instead.
 func (*AdminPage) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{6}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{7}
 }

 func (x *AdminPage) GetKey() string {
@ -856,7 +943,7 @@ type AiAction struct {

 func (x *AiAction) Reset() {
 	*x = AiAction{}
-	mi := &file_v1_manifest_proto_msgTypes[7]
+	mi := &file_v1_manifest_proto_msgTypes[8]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -868,7 +955,7 @@ func (x *AiAction) String() string {
 func (*AiAction) ProtoMessage() {}

 func (x *AiAction) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[7]
+	mi := &file_v1_manifest_proto_msgTypes[8]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -881,7 +968,7 @@ func (x *AiAction) ProtoReflect() protoreflect.Message {

 // Deprecated: Use AiAction.ProtoReflect.Descriptor instead.
 func (*AiAction) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{7}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{8}
 }

 func (x *AiAction) GetKey() string {
@ -931,7 +1018,7 @@ type CssManifest struct {

 func (x *CssManifest) Reset() {
 	*x = CssManifest{}
-	mi := &file_v1_manifest_proto_msgTypes[8]
+	mi := &file_v1_manifest_proto_msgTypes[9]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -943,7 +1030,7 @@ func (x *CssManifest) String() string {
 func (*CssManifest) ProtoMessage() {}

 func (x *CssManifest) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[8]
+	mi := &file_v1_manifest_proto_msgTypes[9]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -956,7 +1043,7 @@ func (x *CssManifest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use CssManifest.ProtoReflect.Descriptor instead.
 func (*CssManifest) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{8}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{9}
 }

 func (x *CssManifest) GetNpmPackages() map[string]string {
@ -997,7 +1084,7 @@ type DirectoryExtensions struct {

 func (x *DirectoryExtensions) Reset() {
 	*x = DirectoryExtensions{}
-	mi := &file_v1_manifest_proto_msgTypes[9]
+	mi := &file_v1_manifest_proto_msgTypes[10]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -1009,7 +1096,7 @@ func (x *DirectoryExtensions) String() string {
 func (*DirectoryExtensions) ProtoMessage() {}

 func (x *DirectoryExtensions) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[9]
+	mi := &file_v1_manifest_proto_msgTypes[10]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -1022,7 +1109,7 @@ func (x *DirectoryExtensions) ProtoReflect() protoreflect.Message {

 // Deprecated: Use DirectoryExtensions.ProtoReflect.Descriptor instead.
 func (*DirectoryExtensions) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{9}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{10}
 }

 func (x *DirectoryExtensions) GetBooleanFilterFields() []string {
@ -1071,7 +1158,7 @@ type BadgeLabel struct {

 func (x *BadgeLabel) Reset() {
 	*x = BadgeLabel{}
-	mi := &file_v1_manifest_proto_msgTypes[10]
+	mi := &file_v1_manifest_proto_msgTypes[11]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -1083,7 +1170,7 @@ func (x *BadgeLabel) String() string {
 func (*BadgeLabel) ProtoMessage() {}

 func (x *BadgeLabel) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[10]
+	mi := &file_v1_manifest_proto_msgTypes[11]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -1096,7 +1183,7 @@ func (x *BadgeLabel) ProtoReflect() protoreflect.Message {

 // Deprecated: Use BadgeLabel.ProtoReflect.Descriptor instead.
 func (*BadgeLabel) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{10}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{11}
 }

 func (x *BadgeLabel) GetPositive() string {
@ -1126,7 +1213,7 @@ type MasterPageDefinition struct {

 func (x *MasterPageDefinition) Reset() {
 	*x = MasterPageDefinition{}
-	mi := &file_v1_manifest_proto_msgTypes[11]
+	mi := &file_v1_manifest_proto_msgTypes[12]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -1138,7 +1225,7 @@ func (x *MasterPageDefinition) String() string {
 func (*MasterPageDefinition) ProtoMessage() {}

 func (x *MasterPageDefinition) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[11]
+	mi := &file_v1_manifest_proto_msgTypes[12]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -1151,7 +1238,7 @@ func (x *MasterPageDefinition) ProtoReflect() protoreflect.Message {

 // Deprecated: Use MasterPageDefinition.ProtoReflect.Descriptor instead.
 func (*MasterPageDefinition) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{11}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{12}
 }

 func (x *MasterPageDefinition) GetKey() string {
@ -1198,7 +1285,7 @@ type MasterPageBlock struct {

 func (x *MasterPageBlock) Reset() {
 	*x = MasterPageBlock{}
-	mi := &file_v1_manifest_proto_msgTypes[12]
+	mi := &file_v1_manifest_proto_msgTypes[13]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -1210,7 +1297,7 @@ func (x *MasterPageBlock) String() string {
 func (*MasterPageBlock) ProtoMessage() {}

 func (x *MasterPageBlock) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[12]
+	mi := &file_v1_manifest_proto_msgTypes[13]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -1223,7 +1310,7 @@ func (x *MasterPageBlock) ProtoReflect() protoreflect.Message {

 // Deprecated: Use MasterPageBlock.ProtoReflect.Descriptor instead.
 func (*MasterPageBlock) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{12}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{13}
 }

 func (x *MasterPageBlock) GetBlockKey() string {
@ -1280,7 +1367,7 @@ type CoreServiceBinding struct {

 func (x *CoreServiceBinding) Reset() {
 	*x = CoreServiceBinding{}
-	mi := &file_v1_manifest_proto_msgTypes[13]
+	mi := &file_v1_manifest_proto_msgTypes[14]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@ -1292,7 +1379,7 @@ func (x *CoreServiceBinding) String() string {
 func (*CoreServiceBinding) ProtoMessage() {}

 func (x *CoreServiceBinding) ProtoReflect() protoreflect.Message {
-	mi := &file_v1_manifest_proto_msgTypes[13]
+	mi := &file_v1_manifest_proto_msgTypes[14]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -1305,7 +1392,7 @@ func (x *CoreServiceBinding) ProtoReflect() protoreflect.Message {

 // Deprecated: Use CoreServiceBinding.ProtoReflect.Descriptor instead.
 func (*CoreServiceBinding) Descriptor() ([]byte, []int) {
-	return file_v1_manifest_proto_rawDescGZIP(), []int{13}
+	return file_v1_manifest_proto_rawDescGZIP(), []int{14}
 }

 func (x *CoreServiceBinding) GetServiceName() string {
@ -1326,7 +1413,7 @@ var File_v1_manifest_proto protoreflect.FileDescriptor

 const file_v1_manifest_proto_rawDesc = "" +
 	"\n" +
-	"\x11v1/manifest.proto\x12\x06abi.v1\"\xdb\r\n" +
+	"\x11v1/manifest.proto\x12\x06abi.v1\"\xaf\x0e\n" +
 	"\x0ePluginManifest\x12\x1f\n" +
 	"\vabi_version\x18\x01 \x01(\rR\n" +
 	"abiVersion\x12\x12\n" +
@ -1366,10 +1453,15 @@ const file_v1_manifest_proto_rawDesc = "" +
 	"\x10declared_filters\x18  \x03(\tR\x0fdeclaredFilters\x12\x1a\n" +
 	"\bcodeless\x18! \x01(\bR\bcodeless\x12#\n" +
 	"\rallowed_hosts\x18\" \x03(\tR\fallowedHosts\x12&\n" +
-	"\x0fmax_response_mb\x18# \x01(\rR\rmaxResponseMb\x1aB\n" +
+	"\x0fmax_response_mb\x18# \x01(\rR\rmaxResponseMb\x128\n" +
+	"\rpublic_routes\x18$ \x03(\v2\x13.abi.v1.PublicRouteR\fpublicRoutes\x12\x18\n" +
+	"\asitemap\x18% \x01(\bR\asitemap\x1aB\n" +
 	"\x14RbacMethodRolesEntry\x12\x10\n" +
 	"\x03key\x18\x01 \x01(\tR\x03key\x12\x14\n" +
-	"\x05value\x18\x02 \x01(\tR\x05value:\x028\x01\"a\n" +
+	"\x05value\x18\x02 \x01(\tR\x05value:\x028\x01\"9\n" +
+	"\vPublicRoute\x12\x12\n" +
+	"\x04path\x18\x01 \x01(\tR\x04path\x12\x16\n" +
+	"\x06prefix\x18\x02 \x01(\bR\x06prefix\"a\n" +
 	"\n" +
 	"Dependency\x12\x16\n" +
 	"\x06plugin\x18\x01 \x01(\tR\x06plugin\x12\x1f\n" +
@ -1463,50 +1555,52 @@ func file_v1_manifest_proto_rawDescGZIP() []byte {
 	return file_v1_manifest_proto_rawDescData
 }

-var file_v1_manifest_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_v1_manifest_proto_msgTypes = make([]protoimpl.MessageInfo, 19)
 var file_v1_manifest_proto_goTypes = []any{
 	(*PluginManifest)(nil),        // 0: abi.v1.PluginManifest
-	(*Dependency)(nil),            // 1: abi.v1.Dependency
-	(*BlockMeta)(nil),             // 2: abi.v1.BlockMeta
-	(*BlockTemplateOverride)(nil), // 3: abi.v1.BlockTemplateOverride
-	(*SystemTemplateMeta)(nil),    // 4: abi.v1.SystemTemplateMeta
-	(*PageTemplateMeta)(nil),      // 5: abi.v1.PageTemplateMeta
-	(*AdminPage)(nil),             // 6: abi.v1.AdminPage
-	(*AiAction)(nil),              // 7: abi.v1.AiAction
-	(*CssManifest)(nil),           // 8: abi.v1.CssManifest
-	(*DirectoryExtensions)(nil),   // 9: abi.v1.DirectoryExtensions
-	(*BadgeLabel)(nil),            // 10: abi.v1.BadgeLabel
-	(*MasterPageDefinition)(nil),  // 11: abi.v1.MasterPageDefinition
-	(*MasterPageBlock)(nil),       // 12: abi.v1.MasterPageBlock
-	(*CoreServiceBinding)(nil),    // 13: abi.v1.CoreServiceBinding
-	nil,                           // 14: abi.v1.PluginManifest.RbacMethodRolesEntry
-	nil,                           // 15: abi.v1.CssManifest.NpmPackagesEntry
-	nil,                           // 16: abi.v1.DirectoryExtensions.BadgeLabelsEntry
-	nil,                           // 17: abi.v1.CoreServiceBinding.MethodRolesEntry
+	(*PublicRoute)(nil),           // 1: abi.v1.PublicRoute
+	(*Dependency)(nil),            // 2: abi.v1.Dependency
+	(*BlockMeta)(nil),             // 3: abi.v1.BlockMeta
+	(*BlockTemplateOverride)(nil), // 4: abi.v1.BlockTemplateOverride
+	(*SystemTemplateMeta)(nil),    // 5: abi.v1.SystemTemplateMeta
+	(*PageTemplateMeta)(nil),      // 6: abi.v1.PageTemplateMeta
+	(*AdminPage)(nil),             // 7: abi.v1.AdminPage
+	(*AiAction)(nil),              // 8: abi.v1.AiAction
+	(*CssManifest)(nil),           // 9: abi.v1.CssManifest
+	(*DirectoryExtensions)(nil),   // 10: abi.v1.DirectoryExtensions
+	(*BadgeLabel)(nil),            // 11: abi.v1.BadgeLabel
+	(*MasterPageDefinition)(nil),  // 12: abi.v1.MasterPageDefinition
+	(*MasterPageBlock)(nil),       // 13: abi.v1.MasterPageBlock
+	(*CoreServiceBinding)(nil),    // 14: abi.v1.CoreServiceBinding
+	nil,                           // 15: abi.v1.PluginManifest.RbacMethodRolesEntry
+	nil,                           // 16: abi.v1.CssManifest.NpmPackagesEntry
+	nil,                           // 17: abi.v1.DirectoryExtensions.BadgeLabelsEntry
+	nil,                           // 18: abi.v1.CoreServiceBinding.MethodRolesEntry
 }
 var file_v1_manifest_proto_depIdxs = []int32{
-	1,  // 0: abi.v1.PluginManifest.dependencies:type_name -> abi.v1.Dependency
-	2,  // 1: abi.v1.PluginManifest.blocks:type_name -> abi.v1.BlockMeta
-	3,  // 2: abi.v1.PluginManifest.block_template_overrides:type_name -> abi.v1.BlockTemplateOverride
-	4,  // 3: abi.v1.PluginManifest.system_templates:type_name -> abi.v1.SystemTemplateMeta
-	5,  // 4: abi.v1.PluginManifest.page_templates:type_name -> abi.v1.PageTemplateMeta
-	6,  // 5: abi.v1.PluginManifest.admin_pages:type_name -> abi.v1.AdminPage
-	11, // 6: abi.v1.PluginManifest.master_pages:type_name -> abi.v1.MasterPageDefinition
-	7,  // 7: abi.v1.PluginManifest.ai_actions:type_name -> abi.v1.AiAction
-	14, // 8: abi.v1.PluginManifest.rbac_method_roles:type_name -> abi.v1.PluginManifest.RbacMethodRolesEntry
-	8,  // 9: abi.v1.PluginManifest.css_manifest:type_name -> abi.v1.CssManifest
-	9,  // 10: abi.v1.PluginManifest.directory_extensions:type_name -> abi.v1.DirectoryExtensions
-	13, // 11: abi.v1.PluginManifest.core_service_bindings:type_name -> abi.v1.CoreServiceBinding
-	15, // 12: abi.v1.CssManifest.npm_packages:type_name -> abi.v1.CssManifest.NpmPackagesEntry
-	16, // 13: abi.v1.DirectoryExtensions.badge_labels:type_name -> abi.v1.DirectoryExtensions.BadgeLabelsEntry
-	12, // 14: abi.v1.MasterPageDefinition.blocks:type_name -> abi.v1.MasterPageBlock
-	17, // 15: abi.v1.CoreServiceBinding.method_roles:type_name -> abi.v1.CoreServiceBinding.MethodRolesEntry
-	10, // 16: abi.v1.DirectoryExtensions.BadgeLabelsEntry.value:type_name -> abi.v1.BadgeLabel
-	17, // [17:17] is the sub-list for method output_type
-	17, // [17:17] is the sub-list for method input_type
-	17, // [17:17] is the sub-list for extension type_name
-	17, // [17:17] is the sub-list for extension extendee
-	0,  // [0:17] is the sub-list for field type_name
+	2,  // 0: abi.v1.PluginManifest.dependencies:type_name -> abi.v1.Dependency
+	3,  // 1: abi.v1.PluginManifest.blocks:type_name -> abi.v1.BlockMeta
+	4,  // 2: abi.v1.PluginManifest.block_template_overrides:type_name -> abi.v1.BlockTemplateOverride
+	5,  // 3: abi.v1.PluginManifest.system_templates:type_name -> abi.v1.SystemTemplateMeta
+	6,  // 4: abi.v1.PluginManifest.page_templates:type_name -> abi.v1.PageTemplateMeta
+	7,  // 5: abi.v1.PluginManifest.admin_pages:type_name -> abi.v1.AdminPage
+	12, // 6: abi.v1.PluginManifest.master_pages:type_name -> abi.v1.MasterPageDefinition
+	8,  // 7: abi.v1.PluginManifest.ai_actions:type_name -> abi.v1.AiAction
+	15, // 8: abi.v1.PluginManifest.rbac_method_roles:type_name -> abi.v1.PluginManifest.RbacMethodRolesEntry
+	9,  // 9: abi.v1.PluginManifest.css_manifest:type_name -> abi.v1.CssManifest
+	10, // 10: abi.v1.PluginManifest.directory_extensions:type_name -> abi.v1.DirectoryExtensions
+	14, // 11: abi.v1.PluginManifest.core_service_bindings:type_name -> abi.v1.CoreServiceBinding
+	1,  // 12: abi.v1.PluginManifest.public_routes:type_name -> abi.v1.PublicRoute
+	16, // 13: abi.v1.CssManifest.npm_packages:type_name -> abi.v1.CssManifest.NpmPackagesEntry
+	17, // 14: abi.v1.DirectoryExtensions.badge_labels:type_name -> abi.v1.DirectoryExtensions.BadgeLabelsEntry
+	13, // 15: abi.v1.MasterPageDefinition.blocks:type_name -> abi.v1.MasterPageBlock
+	18, // 16: abi.v1.CoreServiceBinding.method_roles:type_name -> abi.v1.CoreServiceBinding.MethodRolesEntry
+	11, // 17: abi.v1.DirectoryExtensions.BadgeLabelsEntry.value:type_name -> abi.v1.BadgeLabel
+	18, // [18:18] is the sub-list for method output_type
+	18, // [18:18] is the sub-list for method input_type
+	18, // [18:18] is the sub-list for extension type_name
+	18, // [18:18] is the sub-list for extension extendee
+	0,  // [0:18] is the sub-list for field type_name
 }

 func init() { file_v1_manifest_proto_init() }
@ -1514,14 +1608,14 @@ func file_v1_manifest_proto_init() {
 	if File_v1_manifest_proto != nil {
 		return
 	}
-	file_v1_manifest_proto_msgTypes[12].OneofWrappers = []any{}
+	file_v1_manifest_proto_msgTypes[13].OneofWrappers = []any{}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: unsafe.Slice(unsafe.StringData(file_v1_manifest_proto_rawDesc), len(file_v1_manifest_proto_rawDesc)),
 			NumEnums:      0,
-			NumMessages:   18,
+			NumMessages:   19,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
--- a/datatables/datatables.go
+++ b/datatables/datatables.go
@ -0,0 +1,46 @@
+// Package datatables gives plugins typed access to site data tables (the Data
+// Platform's data_tables/data_table_rows), which the per-plugin Postgres role
+// deliberately cannot reach with raw SQL. The CMS implements this interface
+// host-side and wires it into CoreServices; row payloads cross the ABI as JSON.
+package datatables
+
+import (
+	"context"
+
+	"github.com/google/uuid"
+)
+
+// DataTables provides read/write access to site data tables for plugins.
+type DataTables interface {
+	// GetTableByKey resolves a data table by its stable key (e.g. "playgrounds").
+	GetTableByKey(ctx context.Context, tableKey string) (*Table, error)
+	// GetRow fetches a single row by ID.
+	GetRow(ctx context.Context, rowID uuid.UUID) (*Row, error)
+	// ListRows pages through a table's rows in sort order. limit <= 0 applies
+	// the host default.
+	ListRows(ctx context.Context, tableID uuid.UUID, limit, offset int32) ([]Row, error)
+	// CreateRow appends a row with the given JSON object payload.
+	CreateRow(ctx context.Context, tableID uuid.UUID, dataJSON []byte) (*Row, error)
+	// UpdateRowData replaces a row's JSON payload, preserving its sort order.
+	UpdateRowData(ctx context.Context, rowID uuid.UUID, dataJSON []byte) (*Row, error)
+	// FindRowByField returns the first row whose data->>field equals value, or
+	// (nil, nil) when no row matches.
+	FindRowByField(ctx context.Context, tableID uuid.UUID, field, value string) (*Row, error)
+}
+
+// Table is a plugin-facing view of a data table.
+type Table struct {
+	ID       uuid.UUID
+	TableKey string
+	Name     string
+	RowCount int32
+}
+
+// Row is a plugin-facing view of a data table row. DataJSON is the row's data
+// column verbatim (a JSON object).
+type Row struct {
+	ID        uuid.UUID
+	TableID   uuid.UUID
+	DataJSON  []byte
+	SortOrder int32
+}
--- a/plugin/deps.go
+++ b/plugin/deps.go
@ -10,6 +10,7 @@ import (
 	"git.dev.alexdunmow.com/block/pluginsdk/content"
 	"git.dev.alexdunmow.com/block/pluginsdk/crypto"
 	"git.dev.alexdunmow.com/block/pluginsdk/datasources"
+	"git.dev.alexdunmow.com/block/pluginsdk/datatables"
 	"git.dev.alexdunmow.com/block/pluginsdk/gating"
 	"git.dev.alexdunmow.com/block/pluginsdk/menus"
 	"git.dev.alexdunmow.com/block/pluginsdk/settings"
@ -27,6 +28,7 @@ type CoreServices struct {
 	Crypto        crypto.Crypto
 	Menus         menus.Menus
 	Datasources   datasources.Datasources
+	DataTables    datatables.DataTables
 	PublicUsers   auth.PublicUsers
 	Subscriptions subscriptions.Subscriptions

--- a/plugin/mod.go
+++ b/plugin/mod.go
@ -65,6 +65,28 @@ type ModPlugin struct {
 	// than the 10 MB default. Rides the same admin grant as AllowedHosts. Zero
 	// means the default.
 	MaxResponseMB uint32 `toml:"max_response_mb,omitempty"`
+	// PublicRoutes declares site-root paths the plugin serves through its
+	// HTTP handler (ADR 0026, cms repo): exact paths and path prefixes the
+	// host mounts at the public site root. First-class for the same reason as
+	// DataDir and AllowedHosts: the writeMod round-trip drops any key without
+	// a struct home, and a dropped route claim silently unmounts live SEO
+	// URLs on the next publish. `ninja plugin build` validates the claims
+	// (ValidatePublicRoutes) and stamps them into the manifest
+	// (PluginManifest.public_routes). Empty means the plugin serves HTTP only
+	// under /api/plugins/<name>.
+	PublicRoutes []ModPublicRoute `toml:"public_routes,omitempty"`
+	// Sitemap requests sitemap contribution: when true the host fetches
+	// entries from the plugin's well-known sitemap endpoint and merges them
+	// into the site sitemap. Stamped into the manifest alongside
+	// PublicRoutes; requires an HTTP handler.
+	Sitemap bool `toml:"sitemap,omitempty"`
+}
+
+// ModPublicRoute is one site-root path claim in plugin.mod, e.g.
+// { path = "/area", prefix = true }.
+type ModPublicRoute struct {
+	Path   string `toml:"path"`
+	Prefix bool   `toml:"prefix,omitempty"`
 }

 type ModCompat struct {
--- a/plugin/public_routes.go
+++ b/plugin/public_routes.go
@ -0,0 +1,90 @@
+package plugin
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+// MaxPublicRoutes caps the number of site-root claims a single plugin may
+// declare. Generous: real plugins claim a handful of SEO prefixes.
+const MaxPublicRoutes = 64
+
+// ReservedRoutePrefixes are site-root prefixes plugins may never claim: the
+// admin SPA, the namespaced plugin HTTP mount, and the realtime websocket.
+// A claim equal to or under one of these is rejected, as is a prefix claim
+// that would cover one (e.g. prefix "/api" covers "/api/plugins").
+var ReservedRoutePrefixes = []string{"/admin", "/api/plugins", "/ws"}
+
+// routeSegmentRe matches one path segment: URL-safe unreserved characters.
+var routeSegmentRe = regexp.MustCompile(`^[A-Za-z0-9._~-]+$`)
+
+// ValidatePublicRoutes checks a plugin.mod public_routes declaration. It
+// returns an error listing every offending entry so authors fix them in one
+// pass.
+//
+// Rules:
+//   - at most MaxPublicRoutes entries
+//   - each path is absolute ("/..."), not the site root "/" itself
+//   - segments are non-empty (no "//", no trailing "/"), never "." or "..",
+//     and use URL-safe unreserved characters only
+//   - no claim equal to or under a reserved prefix (ReservedRoutePrefixes),
+//     and no prefix claim that covers a reserved prefix
+//   - no duplicate paths
+func ValidatePublicRoutes(routes []ModPublicRoute) error {
+	if len(routes) > MaxPublicRoutes {
+		return fmt.Errorf("too many public_routes: got %d, max %d", len(routes), MaxPublicRoutes)
+	}
+	seen := make(map[string]struct{}, len(routes))
+	var bad []string
+	for _, r := range routes {
+		if reason := checkRoutePath(r); reason != "" {
+			bad = append(bad, fmt.Sprintf("%q (%s)", r.Path, reason))
+			continue
+		}
+		if _, dup := seen[r.Path]; dup {
+			bad = append(bad, fmt.Sprintf("%q (duplicate path)", r.Path))
+			continue
+		}
+		seen[r.Path] = struct{}{}
+	}
+	if len(bad) > 0 {
+		return fmt.Errorf("invalid public_routes: %s", strings.Join(bad, "; "))
+	}
+	return nil
+}
+
+func checkRoutePath(r ModPublicRoute) string {
+	p := r.Path
+	if p == "" {
+		return "empty path"
+	}
+	if !strings.HasPrefix(p, "/") {
+		return "path must be absolute, starting with /"
+	}
+	if p == "/" {
+		return "cannot claim the site root"
+	}
+	if strings.HasSuffix(p, "/") {
+		return "no trailing slash; set prefix = true to claim the subtree"
+	}
+	for _, seg := range strings.Split(p[1:], "/") {
+		switch {
+		case seg == "":
+			return "empty path segment"
+		case seg == "." || seg == "..":
+			return "path traversal segment"
+		case !routeSegmentRe.MatchString(seg):
+			return fmt.Sprintf("segment %q has characters outside [A-Za-z0-9._~-]", seg)
+		}
+	}
+	for _, reserved := range ReservedRoutePrefixes {
+		if p == reserved || strings.HasPrefix(p, reserved+"/") {
+			return fmt.Sprintf("reserved prefix %s", reserved)
+		}
+		if r.Prefix && strings.HasPrefix(reserved, p+"/") {
+			return fmt.Sprintf("prefix claim covers reserved prefix %s", reserved)
+		}
+	}
+	return ""
+}
--- a/plugin/public_routes_test.go
+++ b/plugin/public_routes_test.go
@ -0,0 +1,214 @@
+package plugin
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+func TestParseModFull_PublicRoutesAndSitemap(t *testing.T) {
+	src := []byte(`
+[plugin]
+name = "perthplaygrounds"
+version = "1.0.0"
+public_routes = [{ path = "/area", prefix = true }, { path = "/badges" }, { path = "/api/directory", prefix = true }]
+sitemap = true
+`)
+	m, err := ParseModFull(src)
+	if err != nil {
+		t.Fatalf("ParseModFull err: %v", err)
+	}
+	routes := m.Plugin.PublicRoutes
+	if len(routes) != 3 {
+		t.Fatalf("PublicRoutes len = %d, want 3 (%v)", len(routes), routes)
+	}
+	want := []ModPublicRoute{
+		{Path: "/area", Prefix: true},
+		{Path: "/badges", Prefix: false},
+		{Path: "/api/directory", Prefix: true},
+	}
+	for i, w := range want {
+		if routes[i] != w {
+			t.Errorf("PublicRoutes[%d] = %+v, want %+v", i, routes[i], w)
+		}
+	}
+	if !m.Plugin.Sitemap {
+		t.Errorf("Sitemap = false, want true")
+	}
+}
+
+func TestParseModFull_PublicRoutesArrayOfTables(t *testing.T) {
+	src := []byte(`
+[plugin]
+name = "perthplaygrounds"
+version = "1.0.0"
+
+[[plugin.public_routes]]
+path = "/area"
+prefix = true
+
+[[plugin.public_routes]]
+path = "/badges"
+`)
+	m, err := ParseModFull(src)
+	if err != nil {
+		t.Fatalf("ParseModFull err: %v", err)
+	}
+	routes := m.Plugin.PublicRoutes
+	if len(routes) != 2 {
+		t.Fatalf("PublicRoutes len = %d, want 2 (%v)", len(routes), routes)
+	}
+	if routes[0] != (ModPublicRoute{Path: "/area", Prefix: true}) {
+		t.Errorf("PublicRoutes[0] = %+v", routes[0])
+	}
+	if routes[1] != (ModPublicRoute{Path: "/badges"}) {
+		t.Errorf("PublicRoutes[1] = %+v", routes[1])
+	}
+}
+
+func TestParseModFull_PublicRoutesOmitted(t *testing.T) {
+	src := []byte(`
+[plugin]
+name = "plain"
+version = "0.1.0"
+`)
+	m, err := ParseModFull(src)
+	if err != nil {
+		t.Fatalf("ParseModFull err: %v", err)
+	}
+	if m.Plugin.PublicRoutes != nil {
+		t.Errorf("PublicRoutes = %v, want nil when omitted", m.Plugin.PublicRoutes)
+	}
+	if m.Plugin.Sitemap {
+		t.Errorf("Sitemap = true, want false (absent key)")
+	}
+}
+
+func TestValidatePublicRoutes_HappyPath(t *testing.T) {
+	err := ValidatePublicRoutes([]ModPublicRoute{
+		{Path: "/area", Prefix: true},
+		{Path: "/badges", Prefix: true},
+		{Path: "/age", Prefix: true},
+		{Path: "/api/directory", Prefix: true},
+		{Path: "/api/semantic-search"},
+		{Path: "/some_page.html"},
+	})
+	if err != nil {
+		t.Fatalf("ValidatePublicRoutes err: %v", err)
+	}
+}
+
+func TestValidatePublicRoutes_EmptyAndNil(t *testing.T) {
+	if err := ValidatePublicRoutes(nil); err != nil {
+		t.Errorf("nil err: %v", err)
+	}
+	if err := ValidatePublicRoutes([]ModPublicRoute{}); err != nil {
+		t.Errorf("empty err: %v", err)
+	}
+}
+
+func TestValidatePublicRoutes_RejectsReservedPrefixes(t *testing.T) {
+	cases := []ModPublicRoute{
+		{Path: "/admin"},
+		{Path: "/admin", Prefix: true},
+		{Path: "/admin/settings"},
+		{Path: "/api/plugins"},
+		{Path: "/api/plugins/foo", Prefix: true},
+		{Path: "/ws"},
+	}
+	for _, c := range cases {
+		err := ValidatePublicRoutes([]ModPublicRoute{c})
+		if err == nil {
+			t.Errorf("ValidatePublicRoutes(%+v) = nil, want reserved-prefix error", c)
+			continue
+		}
+		if !strings.Contains(err.Error(), "reserved prefix") {
+			t.Errorf("error for %+v does not mention reserved prefix: %v", c, err)
+		}
+	}
+}
+
+func TestValidatePublicRoutes_RejectsPrefixCoveringReserved(t *testing.T) {
+	err := ValidatePublicRoutes([]ModPublicRoute{{Path: "/api", Prefix: true}})
+	if err == nil {
+		t.Fatal("prefix claim /api should be rejected: it covers /api/plugins")
+	}
+	if !strings.Contains(err.Error(), "covers reserved prefix /api/plugins") {
+		t.Errorf("error does not explain the covered prefix: %v", err)
+	}
+	if err := ValidatePublicRoutes([]ModPublicRoute{{Path: "/api"}}); err != nil {
+		t.Errorf("exact claim /api should be allowed: %v", err)
+	}
+}
+
+func TestValidatePublicRoutes_RejectsMalformedPaths(t *testing.T) {
+	cases := []struct {
+		route ModPublicRoute
+		frag  string
+	}{
+		{ModPublicRoute{Path: ""}, "empty path"},
+		{ModPublicRoute{Path: "area"}, "absolute"},
+		{ModPublicRoute{Path: "/"}, "site root"},
+		{ModPublicRoute{Path: "/area/"}, "trailing slash"},
+		{ModPublicRoute{Path: "/area//list"}, "empty path segment"},
+		{ModPublicRoute{Path: "/area/../admin"}, "traversal"},
+		{ModPublicRoute{Path: "/area?x=1"}, "characters outside"},
+		{ModPublicRoute{Path: "/area list"}, "characters outside"},
+	}
+	for _, c := range cases {
+		err := ValidatePublicRoutes([]ModPublicRoute{c.route})
+		if err == nil {
+			t.Errorf("ValidatePublicRoutes(%q) = nil, want error", c.route.Path)
+			continue
+		}
+		if !strings.Contains(err.Error(), c.frag) {
+			t.Errorf("error for %q = %v, want mention of %q", c.route.Path, err, c.frag)
+		}
+	}
+}
+
+func TestValidatePublicRoutes_RejectsDuplicates(t *testing.T) {
+	err := ValidatePublicRoutes([]ModPublicRoute{
+		{Path: "/area"},
+		{Path: "/area", Prefix: true},
+	})
+	if err == nil {
+		t.Fatal("duplicate path should be rejected")
+	}
+	if !strings.Contains(err.Error(), "duplicate path") {
+		t.Errorf("error does not mention duplicate: %v", err)
+	}
+}
+
+func TestValidatePublicRoutes_ReportsAllOffendersInOnePass(t *testing.T) {
+	err := ValidatePublicRoutes([]ModPublicRoute{
+		{Path: "bad"},
+		{Path: "/admin/x"},
+		{Path: "/fine"},
+	})
+	if err == nil {
+		t.Fatal("expected error")
+	}
+	for _, frag := range []string{`"bad"`, `"/admin/x"`} {
+		if !strings.Contains(err.Error(), frag) {
+			t.Errorf("error %q does not mention %s", err.Error(), frag)
+		}
+	}
+	if strings.Contains(err.Error(), `"/fine"`) {
+		t.Errorf("error should not name the valid route: %v", err)
+	}
+}
+
+func TestValidatePublicRoutes_CapEnforced(t *testing.T) {
+	routes := make([]ModPublicRoute, MaxPublicRoutes+1)
+	for i := range routes {
+		routes[i] = ModPublicRoute{Path: fmt.Sprintf("/r%d", i)}
+	}
+	err := ValidatePublicRoutes(routes)
+	if err == nil {
+		t.Fatal("expected too-many error")
+	}
+	if !strings.Contains(err.Error(), "too many public_routes") {
+		t.Errorf("error %q does not mention the cap", err.Error())
+	}
+}
--- a/plugin/wasmguest/caps/caps_roundtrip_test.go
+++ b/plugin/wasmguest/caps/caps_roundtrip_test.go
@ -405,6 +405,90 @@ func TestCapabilityRoundTrip(t *testing.T) {
 				}
 			},
 		},
+		// --- datatables ---
+		{
+			name: "datatables_get_table_by_key", wantMethod: "datatables.get_table_by_key",
+			resp: &abiv1.DatatablesGetTableByKeyResponse{Table: &abiv1.DataTableInfo{
+				Id: idTable.String(), TableKey: "playgrounds", Name: "Playgrounds", RowCount: 678,
+			}},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.GetTableByKey(ctx, "playgrounds")
+				if err != nil || got.ID != idTable || got.TableKey != "playgrounds" || got.RowCount != 678 {
+					t.Errorf("table = %+v err = %v", got, err)
+				}
+			},
+		},
+		{
+			name: "datatables_get_row", wantMethod: "datatables.get_row",
+			resp: &abiv1.DatatablesGetRowResponse{Row: &abiv1.DataTableRowInfo{
+				Id: idRow.String(), TableId: idTable.String(), DataJson: []byte(`{"name":"Whiteman Park"}`), SortOrder: 3,
+			}},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.GetRow(ctx, idRow)
+				if err != nil || got.ID != idRow || got.TableID != idTable || got.SortOrder != 3 {
+					t.Errorf("row = %+v err = %v", got, err)
+				}
+			},
+		},
+		{
+			name: "datatables_list_rows", wantMethod: "datatables.list_rows",
+			resp: &abiv1.DatatablesListRowsResponse{Rows: []*abiv1.DataTableRowInfo{
+				{Id: idRow.String(), TableId: idTable.String(), DataJson: []byte(`{"name":"A"}`)},
+				{Id: idItem.String(), TableId: idTable.String(), DataJson: []byte(`{"name":"B"}`), SortOrder: 1},
+			}},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.ListRows(ctx, idTable, 100, 0)
+				if err != nil || len(got) != 2 || got[0].ID != idRow || got[1].SortOrder != 1 {
+					t.Errorf("rows = %+v err = %v", got, err)
+				}
+			},
+		},
+		{
+			name: "datatables_create_row", wantMethod: "datatables.create_row",
+			resp: &abiv1.DatatablesCreateRowResponse{Row: &abiv1.DataTableRowInfo{
+				Id: idRow.String(), TableId: idTable.String(), DataJson: []byte(`{"name":"New"}`),
+			}},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.CreateRow(ctx, idTable, []byte(`{"name":"New"}`))
+				if err != nil || got.ID != idRow || string(got.DataJSON) != `{"name":"New"}` {
+					t.Errorf("row = %+v err = %v", got, err)
+				}
+			},
+		},
+		{
+			name: "datatables_update_row_data", wantMethod: "datatables.update_row_data",
+			resp: &abiv1.DatatablesUpdateRowDataResponse{Row: &abiv1.DataTableRowInfo{
+				Id: idRow.String(), TableId: idTable.String(), DataJson: []byte(`{"name":"Updated"}`), SortOrder: 7,
+			}},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.UpdateRowData(ctx, idRow, []byte(`{"name":"Updated"}`))
+				if err != nil || got.SortOrder != 7 || string(got.DataJSON) != `{"name":"Updated"}` {
+					t.Errorf("row = %+v err = %v", got, err)
+				}
+			},
+		},
+		{
+			name: "datatables_find_row_by_field", wantMethod: "datatables.find_row_by_field",
+			resp: &abiv1.DatatablesFindRowByFieldResponse{Row: &abiv1.DataTableRowInfo{
+				Id: idRow.String(), TableId: idTable.String(), DataJson: []byte(`{"google_place_id":"abc"}`),
+			}},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.FindRowByField(ctx, idTable, "google_place_id", "abc")
+				if err != nil || got == nil || got.ID != idRow {
+					t.Errorf("row = %+v err = %v", got, err)
+				}
+			},
+		},
+		{
+			name: "datatables_find_row_by_field_miss", wantMethod: "datatables.find_row_by_field",
+			resp: &abiv1.DatatablesFindRowByFieldResponse{},
+			run: func(t *testing.T, cs plugin.CoreServices) {
+				got, err := cs.DataTables.FindRowByField(ctx, idTable, "google_place_id", "missing")
+				if err != nil || got != nil {
+					t.Errorf("want nil, nil on miss; row = %+v err = %v", got, err)
+				}
+			},
+		},
 		// --- users ---
 		{
 			name: "users_get_by_username", wantMethod: "users.get_by_username",
--- a/plugin/wasmguest/caps/coreservices.go
+++ b/plugin/wasmguest/caps/coreservices.go
@ -34,6 +34,7 @@ func NewCoreServices(call CallFunc) plugin.CoreServices {
 		Crypto:           &cryptoStub{base{family: "crypto", call: call}},
 		Menus:            &menusStub{base{family: "menus", call: call}},
 		Datasources:      &datasourcesStub{base{family: "datasources", call: call}},
+		DataTables:       &datatablesStub{base{family: "datatables", call: call}},
 		PublicUsers:      &usersStub{base{family: "users", call: call}},
 		Subscriptions:    &subscriptionsStub{base{family: "subscriptions", call: call}},
 		Media:            &mediaStub{base{family: "media", call: call}},
--- a/plugin/wasmguest/caps/datatables.go
+++ b/plugin/wasmguest/caps/datatables.go
@ -0,0 +1,102 @@
+package caps
+
+import (
+	"context"
+
+	abiv1 "git.dev.alexdunmow.com/block/pluginsdk/abi/v1"
+	"git.dev.alexdunmow.com/block/pluginsdk/datatables"
+	"github.com/google/uuid"
+)
+
+// datatablesStub implements datatables.DataTables over datatables.* capability
+// calls. Row payloads cross as JSON bytes.
+type datatablesStub struct{ base }
+
+var _ datatables.DataTables = (*datatablesStub)(nil)
+
+func (s *datatablesStub) GetTableByKey(ctx context.Context, tableKey string) (*datatables.Table, error) {
+	resp := &abiv1.DatatablesGetTableByKeyResponse{}
+	req := &abiv1.DatatablesGetTableByKeyRequest{TableKey: tableKey}
+	if err := s.invoke(ctx, "get_table_by_key", req, resp); err != nil {
+		return nil, err
+	}
+	return dataTableFromProto(resp.GetTable()), nil
+}
+
+func (s *datatablesStub) GetRow(ctx context.Context, rowID uuid.UUID) (*datatables.Row, error) {
+	resp := &abiv1.DatatablesGetRowResponse{}
+	req := &abiv1.DatatablesGetRowRequest{RowId: rowID.String()}
+	if err := s.invoke(ctx, "get_row", req, resp); err != nil {
+		return nil, err
+	}
+	return dataTableRowFromProto(resp.GetRow()), nil
+}
+
+func (s *datatablesStub) ListRows(ctx context.Context, tableID uuid.UUID, limit, offset int32) ([]datatables.Row, error) {
+	resp := &abiv1.DatatablesListRowsResponse{}
+	req := &abiv1.DatatablesListRowsRequest{TableId: tableID.String(), Limit: limit, Offset: offset}
+	if err := s.invoke(ctx, "list_rows", req, resp); err != nil {
+		return nil, err
+	}
+	rows := make([]datatables.Row, 0, len(resp.GetRows()))
+	for _, r := range resp.GetRows() {
+		if row := dataTableRowFromProto(r); row != nil {
+			rows = append(rows, *row)
+		}
+	}
+	return rows, nil
+}
+
+func (s *datatablesStub) CreateRow(ctx context.Context, tableID uuid.UUID, dataJSON []byte) (*datatables.Row, error) {
+	resp := &abiv1.DatatablesCreateRowResponse{}
+	req := &abiv1.DatatablesCreateRowRequest{TableId: tableID.String(), DataJson: dataJSON}
+	if err := s.invoke(ctx, "create_row", req, resp); err != nil {
+		return nil, err
+	}
+	return dataTableRowFromProto(resp.GetRow()), nil
+}
+
+func (s *datatablesStub) UpdateRowData(ctx context.Context, rowID uuid.UUID, dataJSON []byte) (*datatables.Row, error) {
+	resp := &abiv1.DatatablesUpdateRowDataResponse{}
+	req := &abiv1.DatatablesUpdateRowDataRequest{RowId: rowID.String(), DataJson: dataJSON}
+	if err := s.invoke(ctx, "update_row_data", req, resp); err != nil {
+		return nil, err
+	}
+	return dataTableRowFromProto(resp.GetRow()), nil
+}
+
+func (s *datatablesStub) FindRowByField(ctx context.Context, tableID uuid.UUID, field, value string) (*datatables.Row, error) {
+	resp := &abiv1.DatatablesFindRowByFieldResponse{}
+	req := &abiv1.DatatablesFindRowByFieldRequest{TableId: tableID.String(), Field: field, Value: value}
+	if err := s.invoke(ctx, "find_row_by_field", req, resp); err != nil {
+		return nil, err
+	}
+	return dataTableRowFromProto(resp.GetRow()), nil
+}
+
+func dataTableFromProto(t *abiv1.DataTableInfo) *datatables.Table {
+	if t == nil {
+		return nil
+	}
+	id, _ := uuid.Parse(t.GetId())
+	return &datatables.Table{
+		ID:       id,
+		TableKey: t.GetTableKey(),
+		Name:     t.GetName(),
+		RowCount: t.GetRowCount(),
+	}
+}
+
+func dataTableRowFromProto(r *abiv1.DataTableRowInfo) *datatables.Row {
+	if r == nil {
+		return nil
+	}
+	id, _ := uuid.Parse(r.GetId())
+	tableID, _ := uuid.Parse(r.GetTableId())
+	return &datatables.Row{
+		ID:        id,
+		TableID:   tableID,
+		DataJSON:  r.GetDataJson(),
+		SortOrder: r.GetSortOrder(),
+	}
+}
--- a/plugin/wasmguest/caps/testdata/golden/datatables_create_row_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_create_row_req.pb
@ -0,0 +1,2 @@
+
+$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"New"}
--- a/plugin/wasmguest/caps/testdata/golden/datatables_create_row_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_create_row_resp.pb
@ -0,0 +1,3 @@
+
+\
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"New"}
--- a/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_miss_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_miss_req.pb
@ -0,0 +1,2 @@
+
+$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaagoogle_place_idmissing
--- a/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_miss_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_miss_resp.pb
--- a/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_req.pb
@ -0,0 +1,2 @@
+
+$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaagoogle_place_idabc
--- a/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_find_row_by_field_resp.pb
@ -0,0 +1,3 @@
+
+g
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"google_place_id":"abc"}
--- a/plugin/wasmguest/caps/testdata/golden/datatables_get_row_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_get_row_req.pb
@ -0,0 +1,2 @@
+
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb
--- a/plugin/wasmguest/caps/testdata/golden/datatables_get_row_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_get_row_resp.pb
@ -0,0 +1,3 @@
+
+h
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"Whiteman Park"} 
--- a/plugin/wasmguest/caps/testdata/golden/datatables_get_table_by_key_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_get_table_by_key_req.pb
@ -0,0 +1,2 @@
+
+playgrounds
--- a/plugin/wasmguest/caps/testdata/golden/datatables_get_table_by_key_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_get_table_by_key_resp.pb
@ -0,0 +1,3 @@
+
+C
+$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaaplaygroundsPlaygrounds ¦
--- a/plugin/wasmguest/caps/testdata/golden/datatables_list_rows_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_list_rows_req.pb
@ -0,0 +1,2 @@
+
+$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaad
--- a/plugin/wasmguest/caps/testdata/golden/datatables_list_rows_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_list_rows_resp.pb
@ -0,0 +1,5 @@
+
+Z
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"A"}
+\
+$44444444-4444-4444-4444-444444444444$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"B"} 
--- a/plugin/wasmguest/caps/testdata/golden/datatables_update_row_data_req.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_update_row_data_req.pb
@ -0,0 +1,2 @@
+
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb{"name":"Updated"}
--- a/plugin/wasmguest/caps/testdata/golden/datatables_update_row_data_resp.pb
+++ b/plugin/wasmguest/caps/testdata/golden/datatables_update_row_data_resp.pb
@ -0,0 +1,3 @@
+
+b
+$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"Updated"}
				`@ -0,0 +1,2 @@`

				`$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa{"name":"New"}`
				`@ -0,0 +1,2 @@`

				`$aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaagoogle_place_idmissing`
				`@ -0,0 +1,2 @@`

				`$bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb{"name":"Updated"}`