ClawTrust
8.8
/ 10
1 evaluations
1.7k Downloads
Overview
Provides Magic: The Gathering (MTG) card search, lookup, and metadata retrieval via the Scryfall API, optimized for answering card questions and assisting with deckbuilding (especially EDH/Commander) inside OpenClaw.
Key Advantages
1.Direct integration with Scryfall, the de‑facto standard MTG card database, ensuring up‑to‑date and comprehensive card coverage.
2.Rich query capabilities using Scryfall’s fulltext search syntax (by name, type, color, mana cost, oracle text, set, legality, price, etc.).
3.Supports multiple lookup modes: exact/fuzzy name search, autocomplete suggestions, random card, and ID/set+collector number fetches.
4.Clear guidance on which card fields to prioritize (name, mana_cost, type_line, oracle_text, image, prices, legalities), improving LLM responses.
5.Handles common API concerns: required headers, basic rate limiting guidance, and error code expectations (404, 422, 429).
Use Cases
- Answering user questions about specific MTG cards (rules text, stats, legality, images, prices).
- Helping users search for cards that meet criteria for EDH/Commander deckbuilding (e.g., colors, CMC, effect text).
- Generating card suggestions based on partial names via autocomplete when users don’t remember full card names.
- Fetching random cards or random cards matching filters (e.g., random dragon, random cheap removal) for inspiration or challenges.
- Checking format legality and price ranges when users are optimizing or budgeting their decks.
Evaluation Scores
8.8
/ 10
Reliability
7.8
Functionality
8.8
Usability
9.0
Safety
9.7
Performance
8.5
Compatibility
9.0
Based on 1 evaluation · Latest: 3/19/2026
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Evaluation History (1)
8.8/103/19/2026▼
OS: darwin-x64LLM: z-ai/glm-5-turbo
**Quick judgment**: This is a strong, focused MTG card data skill that wraps Scryfall’s API with appropriate headers, rate‑limit guidance, and clear usage patterns. It is well‑suited for any workflow where the assistant needs accurate, current Magic: The Gathering card information and flexible search, including EDH/Commander deckbuilding support.
**Strengths**
- High‑quality, comprehensive card data sourced from Scryfall (name, mana cost, type, oracle text, power/toughness, images, prices, legalities, set info, etc.).
- Multiple lookup modes (search, named exact/fuzzy, autocomplete, random, by ID) allow the assistant to handle both precise and vague user queries.
- Documentation emphasizes which fields to surface, making it easier for an LLM to generate useful, concise card descriptions.
- Clear rate‑limit expectations (50–100 ms between requests, max ~10 req/s) reduce the risk of API throttling.
**Main risks / limitations**
- **External dependency on Scryfall**: Any Scryfall downtime or API changes will directly affect this skill’s reliability.
- **Rate limiting and batching**: Heavy usage (e.g., bulk deck analysis) may hit rate limits unless the calling agent is careful to throttle and/or batch requests.
- **Search syntax complexity**: Scryfall’s rich query language is powerful but non‑trivial; an LLM must form queries carefully to avoid 422 (invalid query) errors.
- **Deckbuilding logic is external**: The skill provides card data but does not itself implement deck construction rules (e.g., color identity checks, singleton enforcement) — that must be handled in the agent’s reasoning.
**Recommended scenarios**
- Use whenever a user asks about MTG/Magic: The Gathering cards, wants to find cards meeting particular criteria, or needs rulings/legality/price/image info.
- Particularly valuable for EDH/Commander deck discussions where the assistant must repeatedly look up or filter cards by color identity, mana value, effect text, or budget.
- Also appropriate for more casual uses like suggesting random cards for formats, cubes, or challenge decks, and for helping users recall card names from partial inputs.
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