Use when working with ANY data persistence, database, axiom-storage, CloudKit, migration, or serialization. Covers SwiftData, Core Data, GRDB, SQLite, CloudKit sync, file storage, Codable, migrations.
/plugin marketplace add CharlesWiltgen/Axiom/plugin install axiom@axiom-marketplaceThis skill inherits all available tools. When active, it can use any tool Claude has access to.
You MUST use this skill for ANY data persistence, database, axiom-storage, CloudKit, or serialization work.
Use this router when working with:
Working with SwiftData → /skill axiom-swiftdata
Schema migration → /skill axiom-swiftdata-migration
Migration issues → /skill axiom-swiftdata-migration-diag
Migrating from Realm → /skill axiom-realm-migration-ref
SwiftData vs SQLiteData → /skill axiom-sqlitedata-migration
GRDB queries → /skill axiom-grdb
SQLiteData → /skill axiom-sqlitedata
Advanced SQLiteData → /skill axiom-sqlitedata-ref
Core Data patterns → /skill axiom-core-data
Core Data issues → /skill axiom-core-data-diag
Database migration safety → /skill axiom-database-migration (critical - prevents data loss)
Codable issues → /skill axiom-codable
Cloud sync patterns → /skill axiom-cloud-sync
CloudKit → /skill axiom-cloudkit-ref
iCloud Drive → /skill axiom-icloud-drive-ref
Cloud sync errors → /skill axiom-cloud-sync-diag
Storage strategy → /skill axiom-storage
Storage issues → /skill axiom-storage-diag
Storage management → /skill axiom-storage-management-ref
File protection → /skill axiom-file-protection-ref
User asks about data/storage
├─ Database?
│ ├─ SwiftData? → swiftdata, axiom-swiftdata-migration
│ ├─ Core Data? → core-data, axiom-core-data-diag
│ ├─ GRDB? → grdb
│ └─ SQLiteData? → sqlitedata
│
├─ Migration? → database-migration (ALWAYS - prevents data loss)
│
├─ Cloud storage?
│ ├─ Sync architecture? → cloud-sync
│ ├─ CloudKit? → cloudkit-ref
│ ├─ iCloud Drive? → icloud-drive-ref
│ └─ Sync errors? → cloud-sync-diag
│
├─ Serialization? → codable
│
└─ File storage? → storage, axiom-storage-diag, axiom-storage-management-ref
ALWAYS invoke /skill axiom-database-migration when adding/modifying database columns.
This prevents:
User: "I need to add a column to my SwiftData model"
→ Invoke: /skill axiom-database-migration (critical - prevents data loss)
User: "How do I query SwiftData with complex filters?"
→ Invoke: /skill axiom-swiftdata
User: "CloudKit sync isn't working"
→ Invoke: /skill axiom-cloud-sync-diag
User: "Should I use SwiftData or SQLiteData?"
→ Invoke: /skill axiom-sqlitedata-migration
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.