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Install in OpenClaw
/install blackjack-helper-yuki
Description
Blackjack (21点) decision assistant. Provides optimal action recommendations based on player's hand and dealer's upcard: Hit, Stand, Double, Split, Surrender....
README (SKILL.md)
Blackjack Strategy Guide
Provides optimal action recommendations based on mathematical probability.
Decision Rules
Hard Totals (A counts as 1)
| Player Total | Dealer 2-6 | Dealer 7-10 | Dealer A |
|---|---|---|---|
| 8 or less | Hit | Hit | Hit |
| 9 | Double | Hit | Hit |
| 10 | Double | Double | Double |
| 11 | Double | Double | Hit |
| 12-16 | Stand | Hit | Hit |
| 17+ | Stand | Stand | Stand |
Soft Totals (A counts as 11)
| Player Hand | Dealer 2-6 | Dealer 7-A |
|---|---|---|
| A,2-6 | Hit | Hit |
| A,7 | Stand | Hit |
| A,8-9 | Stand | Stand |
Pairs
| Pair | Dealer 2-6 | Dealer 7-A |
|---|---|---|
| A-A | Split | Split |
| 8-8 | Split | Split |
| 9-9 | Split | Stand |
| 7-7 | Split | Hit |
| 2-2, 3-3, 6-6 | Split | Hit |
| 4-4, 5-5, 10-10 | Don't split | Don't split |
How to Use
Provide:
- Player's hand (e.g., 15, soft 17, pair of 8s)
- Dealer's upcard (e.g., dealer 7, dealer Q)
Recommendations:
- Hit = Take another card
- Stand = Keep current hand
- Double = Double bet, get exactly one more card
- Split = Split pair into two hands
- Surrender = Forfeit half bet (first decision only)
Examples
"Player 15, dealer 7" → Recommend: Hit (12-16 vs 7-A)
"Pair of A's, dealer 6" → Recommend: Split
"Soft 18, dealer 9" → Recommend: Stand
"Player 11, dealer A" → Recommend: Hit
Supported Languages
| Language | 21点 Expression | Keywords |
|---|---|---|
| English | Twenty-one | blackjack, hit, stand, double, split |
| 中文 | 二十一点 | 21点、要牌、停牌 |
| 日本語 | ブラックジャック | ヒット、スタンド |
| Français | Vingt-et-un | tirer, rester, doubler |
| Español | Veintiuno | pedir, plantarse |
Usage Guidance
This skill is internally consistent and doesn't ask for secrets or install anything. Before installing, consider that (1) the guide provides deterministic recommendations and is not a guarantee of winning outcomes, (2) gambling carries financial risk and you should use the tool responsibly, and (3) if you require up-to-date or venue-specific strategy (e.g., rules that affect doubling/splitting), verify the strategy against the house rules — the SKILL.md is static text and may not reflect every casino variant.
Capability Analysis
Type: OpenClaw Skill
Name: blackjack-helper-yuki
Version: 1.3.0
The skill bundle contains only metadata (`_meta.json`) and documentation (`SKILL.md`). The `SKILL.md` file provides instructions for an AI agent to act as a blackjack decision assistant, detailing strategy tables and usage examples. There is no executable code, no evidence of prompt injection attempts to subvert the agent's purpose, and no indicators of malicious activities such as data exfiltration, unauthorized execution, or persistence mechanisms. The content is entirely aligned with its stated, benign purpose.
Capability Assessment
Purpose & Capability
The skill name and description match the SKILL.md content: a Blackjack strategy guide that outputs Hit/Stand/Double/Split/Surrender recommendations. It does not request unrelated binaries, environment variables, or credentials.
Instruction Scope
SKILL.md contains only strategy tables, usage examples, supported languages, and how to provide the player's hand and dealer upcard. It does not instruct reading files, accessing system state, or transmitting data to external endpoints.
Install Mechanism
No install spec is present and no code files exist. This is the lowest-risk model: nothing is written to disk or fetched at install time.
Credentials
The skill declares no required environment variables, credentials, or config paths, which is proportional for a local decision assistant that only needs the user's textual input.
Persistence & Privilege
always is false and the skill is user-invocable. It does not request persistent or elevated privileges, nor does it modify other skills or system settings.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install blackjack-helper-yuki - After installation, invoke the skill by name or use
/blackjack-helper-yuki - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.3.0
- Updated hard total strategy table for increased accuracy, adding separate columns for dealer 7-10 and dealer A, and refining recommendations for 10 and 11 totals.
- No other changes to logic or skill operation.
v1.2.0
- Documentation fully rewritten in English for broader accessibility.
- Clarified and simplified the trigger keywords list in the description.
- Restructured rules and usage sections for improved readability and conciseness.
- Examples and supported languages standardized and condensed.
- Removed duplicated or ambiguous phrases for greater clarity.
v1.1.0
- Added detailed multi-language trigger keywords and support for Chinese, English, Japanese, French, Spanish, German, and Portuguese.
- Improved SKILL.md with bilingual explanation (Chinese/English) for usage, decision rules, and output.
- Clarified terminology for hard and soft hands, and expanded instructions and examples in both languages.
- Enhanced description section for more explicit triggers and broader language coverage.
v1.0.0
- Initial release of Blackjack decision helper.
- Provides optimal playing advice (Hit, Stand, Double, Split, Surrender) based on player and dealer cards.
- Covers hard hands, soft hands, and pairs with clear strategy tables.
- Supports user inputs like hand values and dealer upcards for instant recommendations.
- Includes usage examples for easy understanding.
Metadata
Frequently Asked Questions
What is Blackjack Helper?
Blackjack (21点) decision assistant. Provides optimal action recommendations based on player's hand and dealer's upcard: Hit, Stand, Double, Split, Surrender.... It is an AI Agent Skill for Claude Code / OpenClaw, with 286 downloads so far.
How do I install Blackjack Helper?
Run "/install blackjack-helper-yuki" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Blackjack Helper free?
Yes, Blackjack Helper is completely free (open-source). You can download, install and use it at no cost.
Which platforms does Blackjack Helper support?
Blackjack Helper is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Blackjack Helper?
It is built and maintained by Yukin1218 (@yukin1218); the current version is v1.3.0.
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