english-learn-cards

What This Skill Does

The English Learn Cards skill provides a robust, Spaced Repetition System (SRS) for vocabulary acquisition directly within your OpenClaw agent workflow. By leveraging a SQLite backend, it ensures that your learning progress is persistent, structured, and highly performant. The core logic relies on a deterministic Python helper script that handles database operations, SRS scheduling (using an SM-2 inspired algorithm), and content rendering, ensuring that your agent always presents information with consistency. Because the skill is platform-agnostic, it can be integrated into Slack, Telegram, Discord, or WhatsApp, allowing you to turn any chat session into an effective study period. It specifically tracks word mastery, providing a 'due' queue that prompts you to review words at optimal intervals based on your historical performance, effectively curbing the forgetting curve.

Installation

To integrate this skill into your environment, use the OpenClaw Hub command: clawhub install openclaw/skills/skills/racymind/english-learn-cards. After installation, ensure the ENGLISH_LEARN_CARDS_DB environment variable is defined if you wish to change the default storage path. You must initialize the database and perform migrations using the helper CLI: python skill/scripts/words.py init followed by python skill/scripts/words.py migrate. Ensure your environment has the necessary Python dependencies installed to run the helper script effectively.

Use Cases

This skill is perfect for language learners who want to build a custom vocabulary deck rather than using generic, pre-made flashcard sets. Use it to extract words from your daily reading or professional interactions, save them for future recall, and engage in daily, short-burst study sessions. It is particularly useful for agents managing a personalized corpus of domain-specific technical terminology or foreign language fluency improvement.

Example Prompts

• 'Hey Agent, please add the word "ubiquitous" to my learning deck and provide a short definition.'
• 'I have some free time now, can you show me the flashcards that are due for review?'
• 'I just reviewed that card; mark it as grade 3 because I remembered the definition perfectly.'

Tips & Limitations

To maintain optimal performance, keep your SQLite database file backed up periodically. Note that while the skill is powerful, it does not include a built-in GUI; all user-agent interactions must be defined via your specific agent prompt template. Always ensure your agent's prompt handles edge cases where the CLI might return empty results for due cards to prevent confusing user responses. Finally, avoid manually modifying the SQLite file to ensure the integrity of the SRS scheduling algorithms.