Good job. You've learned how to extend OpenClaw through skills, store knowledge in its file-first memory system, and automate work with cron jobs and webhooks.
Skills use SKILL.md frontmatter to declare dependencies, and ClawHub gives you access to 700+ community plugins. Memory combines Markdown files with a SQLite index that supports vector search (via sqlite-vec) and keyword search (via FTS5) in a 70/30 hybrid. Cron jobs use standard 5-field expressions with isolated session support, while webhooks expose /hooks/wake and /hooks/agent for event-driven triggers from services like n8n and Gmail.