fix: tolerate numeric args from MCP JSON in all kanban commands

Replace fragile 'as String'/'as String?' casts in callAsTool() with
string interpolation so that numeric values sent by MCP JSON clients
(double instead of String) no longer throw a type cast error.

Fixes: type 'double' is not a subtype of type 'String' in type cast

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

packages/kanban/lib/src/commands/add_comment_command.dart

@@ -35,8 +35,8 @@ class AddCommentCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
-    final comment = args['comment'] as String;
+    final comment = '${args['comment']}';
 
     final context = await ProjectContext.find(fs: _fs);
     final store = TicketStore(

packages/kanban/lib/src/commands/archive_command.dart

@@ -30,7 +30,7 @@ class ArchiveCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
 
     final context = await ProjectContext.find(fs: _fs);
     final config = context.config.kanban;

packages/kanban/lib/src/commands/board_command.dart

@@ -27,9 +27,11 @@ class BoardCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final typeFilter = args['type'] as String?;
+    final typeFilter = args['type'] != null ? '${args['type']}' : null;
-    final labelFilter = args['label'] as String?;
+    final labelFilter = args['label'] != null ? '${args['label']}' : null;
-    final milestoneFilter = args['milestone'] as String?;
+    final milestoneFilter = args['milestone'] != null
+        ? '${args['milestone']}'
+        : null;
 
     final context = await ProjectContext.find(fs: _fs);
     final config = context.config.kanban;

packages/kanban/lib/src/commands/create_command.dart

@@ -43,10 +43,10 @@ class CreateCommand extends DewCommand with DewToolCommand {
     final context = await ProjectContext.find(fs: _fs);
     final config = context.config.kanban;
 
-    final title = args['title'] as String;
+    final title = '${args['title']}';
-    final typeId = args['type'] as String;
+    final typeId = '${args['type']}';
-    final columnArg = args['column'] as String?;
+    final columnArg = args['column'] != null ? '${args['column']}' : null;
-    final body = args['body'] as String? ?? '';
+    final body = args['body'] != null ? '${args['body']}' : '';
     final milestones = _toStringList(args['milestone']);
     final labels = _toStringList(args['label']);
 

packages/kanban/lib/src/commands/delete_command.dart

@@ -28,7 +28,7 @@ class DeleteCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
     final context = await ProjectContext.find(fs: _fs);
     final store = TicketStore(
       kanbanDir: context.dirs.kanban,

packages/kanban/lib/src/commands/get_command.dart

@@ -29,7 +29,7 @@ class GetCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
     final context = await ProjectContext.find(fs: _fs);
     final store = TicketStore(
       kanbanDir: context.dirs.kanban,

packages/kanban/lib/src/commands/link_command.dart

@@ -40,9 +40,9 @@ class LinkCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
-    final targetId = (args['target'] as String).toUpperCase();
+    final targetId = '${args['target']}'.toUpperCase();
-    final type = args['type'] as String;
+    final type = '${args['type']}';
 
     if (id == targetId)
       throw ArgumentError('A ticket cannot be linked to itself.');

packages/kanban/lib/src/commands/list_command.dart

@@ -38,10 +38,12 @@ class ListCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final columnFilter = args['column'] as String?;
+    final columnFilter = args['column'] != null ? '${args['column']}' : null;
-    final typeFilter = args['type'] as String?;
+    final typeFilter = args['type'] != null ? '${args['type']}' : null;
-    final labelFilter = args['label'] as String?;
+    final labelFilter = args['label'] != null ? '${args['label']}' : null;
-    final milestoneFilter = args['milestone'] as String?;
+    final milestoneFilter = args['milestone'] != null
+        ? '${args['milestone']}'
+        : null;
     final includeArchived = args['include-archived'] as bool? ?? false;
 
     final context = await ProjectContext.find(fs: _fs);

packages/kanban/lib/src/commands/move_command.dart

@@ -31,8 +31,8 @@ class MoveCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
-    final column = args['column'] as String;
+    final column = '${args['column']}';
 
     final context = await ProjectContext.find(fs: _fs);
     final config = context.config.kanban;

packages/kanban/lib/src/commands/search_command.dart

@@ -46,11 +46,13 @@ class SearchCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final query = (args['query'] as String).toLowerCase();
+    final query = '${args['query']}'.toLowerCase();
-    final columnFilter = args['column'] as String?;
+    final columnFilter = args['column'] != null ? '${args['column']}' : null;
-    final typeFilter = args['type'] as String?;
+    final typeFilter = args['type'] != null ? '${args['type']}' : null;
-    final labelFilter = args['label'] as String?;
+    final labelFilter = args['label'] != null ? '${args['label']}' : null;
-    final milestoneFilter = args['milestone'] as String?;
+    final milestoneFilter = args['milestone'] != null
+        ? '${args['milestone']}'
+        : null;
     final includeArchived = args['include-archived'] as bool? ?? false;
 
     final context = await ProjectContext.find(fs: _fs);

packages/kanban/lib/src/commands/unarchive_command.dart

@@ -35,7 +35,7 @@ class UnarchiveCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
 
     final context = await ProjectContext.find(fs: _fs);
     final config = context.config.kanban;
@@ -50,7 +50,7 @@ class UnarchiveCommand extends DewCommand with DewToolCommand {
     if (ticket == null) throw ArgumentError('Ticket $id not found.');
     if (ticket.column != 'archive') return '$id is not archived.';
 
-    final columnArg = args['column'] as String?;
+    final columnArg = args['column'] != null ? '${args['column']}' : null;
     final targetColumn = columnArg ?? config.columns.first.id;
     if (!config.columns.any((c) => c.id == targetColumn)) {
       throw ArgumentError(

packages/kanban/lib/src/commands/unlink_command.dart

@@ -30,8 +30,8 @@ class UnlinkCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
-    final targetId = (args['target'] as String).toUpperCase();
+    final targetId = '${args['target']}'.toUpperCase();
 
     final context = await ProjectContext.find(fs: _fs);
     final store = TicketStore(

packages/kanban/lib/src/commands/update_command.dart

@@ -37,11 +37,11 @@ class UpdateCommand extends DewCommand with DewToolCommand {
 
   @override
   Future<String> callAsTool(Map<String, dynamic> args) async {
-    final id = (args['id'] as String).toUpperCase();
+    final id = '${args['id']}'.toUpperCase();
-    final title = args['title'] as String?;
+    final title = args['title'] != null ? '${args['title']}' : null;
-    final typeId = args['type'] as String?;
+    final typeId = args['type'] != null ? '${args['type']}' : null;
-    final column = args['column'] as String?;
+    final column = args['column'] != null ? '${args['column']}' : null;
-    final body = args['body'] as String?;
+    final body = args['body'] != null ? '${args['body']}' : null;
     final rawMilestones = args['milestone'] as List?;
     final milestones = rawMilestones != null && rawMilestones.isNotEmpty
         ? rawMilestones.cast<String>().where((s) => s.isNotEmpty).toList()