Convert skill files to Agent Skills open standard format

Replaces flat .md files with directory-based format (skill-name/SKILL.md)
including YAML frontmatter per the agentskills spec.

Author: escamoteur

skills/SKILLS.md

@@ -1,3 +1,11 @@
+---
+name: flutter-architecture-expert
+description: Architecture guidance for Flutter apps using the flutter_it construction set (get_it, watch_it, command_it, listen_it). Covers Pragmatic Flutter Architecture (PFA) with Services/Managers/Views, feature-based project structure, manager pattern, proxy pattern with optimistic updates and override fields, DataRepository with reference counting, scoped services, widget granularity, testing, and best practices. Use when designing app architecture, structuring Flutter projects, implementing managers or proxies, or planning feature organization.
+metadata:
+  author: flutter-it
+  version: "1.0"
+---
+
 # flutter_it Architecture Expert - App Structure & Patterns
 
 **What**: Architecture guidance for Flutter apps using the flutter_it construction set (get_it + watch_it + command_it + listen_it).
@@ -338,15 +346,15 @@ abstract class DataRepository<T, TProxy extends DataProxy<T>, TId> {
 
 **Reference counting flow**:
 ```
-Feed creates ChatProxy(id=1) → refCount=1
-Page opens same proxy         → refCount=2
-Page closes, releases         → refCount=1 (proxy stays for feed)
-Feed refreshes, releases      → refCount=0 (proxy disposed)
+Feed creates ChatProxy(id=1) -> refCount=1
+Page opens same proxy         -> refCount=2
+Page closes, releases         -> refCount=1 (proxy stays for feed)
+Feed refreshes, releases      -> refCount=0 (proxy disposed)
 ```
 
 ## Feed/DataSource Pattern
 
-For paginated lists and infinite scroll, see the dedicated `/skills/feed-datasource-expert.md` skill. Key concepts: `FeedDataSource<TItem>` (non-paged) and `PagedFeedDataSource<TItem>` (cursor-based pagination) with separate Commands for initial load vs pagination, auto-pagination at `items.length - 3`, and proxy reference counting on refresh.
+For paginated lists and infinite scroll, see the dedicated `feed-datasource-expert` skill. Key concepts: `FeedDataSource<TItem>` (non-paged) and `PagedFeedDataSource<TItem>` (cursor-based pagination) with separate Commands for initial load vs pagination, auto-pagination at `items.length - 3`, and proxy reference counting on refresh.
 
 ## Widget Granularity
 
@@ -379,7 +387,7 @@ class _Counter extends WatchingWidget {
 // Result: user change only rebuilds _Header, count change only rebuilds _Counter
 ```
 
-**Note**: When working with Listenable, ValueListenable, ChangeNotifier, or ValueNotifier, check the listen_it skill for `listen()` and reactive operators (map, debounce, where, etc.).
+**Note**: When working with Listenable, ValueListenable, ChangeNotifier, or ValueNotifier, check the listen-it-expert skill for `listen()` and reactive operators (map, debounce, where, etc.).
 
 ## Testing
 

skills/flutter-architecture-expert.md …lls/flutter-architecture-expert/SKILL.mdskills/flutter-architecture-expert.md renamed to skills/flutter-architecture-expert/SKILL.md skills/flutter-architecture-expert.md renamed to skills/flutter-architecture-expert/SKILL.md

@@ -1,3 +1,11 @@
+---
+name: get-it-expert
+description: Expert guidance on get_it service locator and dependency injection for Flutter/Dart. Covers registration (singleton, factory, lazy, async), scopes with shadowing, async initialization with init() pattern, retrieval, testing with scope-based mocking, and production patterns. Use when working with get_it, dependency injection, service registration, scopes, or async initialization.
+metadata:
+  author: flutter-it
+  version: "1.0"
+---
+
 # get_it Expert - Service Locator & Dependency Injection
 
 **What**: Type-safe service locator with O(1) lookup. Register services globally, retrieve anywhere without BuildContext. Pure Dart, no code generation.
@@ -140,7 +148,7 @@ getIt.allReadySync();              // bool
 getIt.isReadySync<Database>();     // bool
 ```
 
-**UI integration**: Use `FutureBuilder` with `getIt.allReady()` to show a splash screen while async services initialize. If using watch_it, prefer its `allReady()` function inside a `WatchingWidget` instead (see watch_it skill).
+**UI integration**: Use `FutureBuilder` with `getIt.allReady()` to show a splash screen while async services initialize. If using watch_it, prefer its `allReady()` function inside a `WatchingWidget` instead (see watch-it-expert skill).
 
 ## Reference Counting
 
@@ -234,4 +242,4 @@ Future<void> setupThrowableScope() async {
 // On error recovery: reset throwable scope
 await di.popScopesTill('throwableScope', inclusive: true);
 await setupThrowableScope();
-```
+```