Agent Skill: CKEditor 5 development for TYPO3 v12+. Use when developing custom plugins, configuring RTE presets, or migrating from CKEditor 4. By Netresearch.
Provides CKEditor 5 development patterns for TYPO3 v12+, including custom plugin architecture, YAML configuration, and migration from CKEditor 4. Use when building RTE plugins or configuring presets.
/plugin marketplace add netresearch/typo3-ckeditor5-skill/plugin install typo3-ckeditor5@netresearch-claude-code-marketplaceThis skill inherits all available tools. When active, it can use any tool Claude has access to.
references/ckeditor5-architecture.mdreferences/migration-guide.mdreferences/plugin-development.mdreferences/typo3-integration.mdscripts/verify-ckeditor5.shCKEditor 5 integration patterns for TYPO3: custom plugins, configuration, and migration.
references/ckeditor5-architecture.md - Core conceptsreferences/typo3-integration.md - TYPO3-specific patternsreferences/plugin-development.md - Custom plugin guidereferences/migration-guide.md - CKEditor 4→5 migration$GLOBALS['TYPO3_CONF_VARS']['RTE']['Presets']['my_preset'] = 'EXT:my_ext/Configuration/RTE/MyPreset.yaml';
$GLOBALS['TYPO3_CONF_VARS']['SYS']['ckeditor5']['plugins']['my-plugin'] = [
'entryPoint' => 'EXT:my_ext/Resources/Public/JavaScript/Ckeditor/my-plugin.js',
];
packages/my-plugin/src/
├── myplugin.js # Main plugin (requires Editing + UI)
├── mypluginediting.js # Schema, converters, commands
├── mypluginui.js # Toolbar buttons, dropdowns
└── myplugincommand.js # Command implementation
./scripts/verify-ckeditor5.sh /path/to/extension
Contributing: https://github.com/netresearch/typo3-ckeditor5-skill
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.