at_client_skills

AI agent skill for the Atsign at_client SDK. Gives AI coding agents accurate, up-to-date knowledge of at_client and at_client_flutter — covering AtCollection<T>, auth flows, querying, sub-collections, testing patterns, and common pitfalls.

Works with Claude Code, Cursor, GitHub Copilot, Cline, and any agent supporting the agentskills.io specification.

Installation

# Add to your project
dart pub add --dev at_client_skills skills

# Install the skill into your IDE
dart run skills get

The skill will be installed to your IDE's skills directory (.claude/skills/, .cursor/skills/, etc.) automatically.

What's covered

  • AtCollection<T> — full CRUD, CItem<T>, Query<T>, sub-collections, read receipts, event streams
  • wherePath / PathField<T> typed predicates
  • watchWithTree / watchWithSub for deep multi-level hierarchies
  • at_client_flutter auth — all 4 dialog flows (CRAM, atKeys file, device keychain, APKAM)
  • AtClientManager post-auth setup
  • Package selection guide
  • Domain-object patterns (toJson/fromJson, registerFactory, typeTag)
  • Unit testing without a live atServer (collections_test_hooks.dart)
  • Architecture decision guide: AtCollection<T> vs Notifications + SQLite
  • Deprecation guide: AtCollectionModel, at_common_flutter, at_backupkey_flutter

Keeping it up to date

dart pub upgrade at_client_skills && dart run skills get

Dart/Flutter MCP Server

When the official Dart/Flutter MCP server ships resource support

(flutter.dev/go/packaged-ai-assets), this package will be updated to expose the skill content as MCP resources — no action needed on your end.

Libraries