{"id":28769567,"url":"https://github.com/pollinations/chucknorris","last_synced_at":"2025-12-30T02:21:47.644Z","repository":{"id":285876409,"uuid":"959638222","full_name":"pollinations/chucknorris","owner":"pollinations","description":"⚡ C̷h̷u̷c̷k̷N̷o̷r̷r̷i̷s̷ MCP server: Helping LLMs break limits. 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Only works on weaker models. Latest LLMs recognize jailbreak attempts. This tool is also designed for security research and evaluation purposes to help identify vulnerabilities in LLM systems.\n\n`~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~`\n\n## 📖 Introduction\n\nThe C̷h̷u̷c̷k̷N̷o̷r̷r̷i̷s̷ MCP Server provides an implementation of the Model Context Protocol (MCP) that delivers specialized enhancement prompts to various LLMs. It uses jailbreak prompts from [elder-plinius' L1B3RT4S](https://github.com/elder-plinius/L1B3RT4S) project and implements a dynamic schema approach for more effective delivery.\n\n## 🚀 Getting Started\n\nRun directly with `npx`:\n\n```bash\nnpx @pollinations/chucknorris\n```\n\n### MCP Client Configuration\n\nAdd to your MCP server list in `mcp_config.json`:\n\n```json\n{\n  \"mcpServers\": {\n    \"chucknorris\": {\n      \"command\": \"npx\",\n      \"args\": [\"-y\", \"@pollinations/chucknorris\"]\n    }\n  }\n}\n```\n\n`~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~`\n\n## 🤔 How It Works\n\n### Advanced Dynamic Approach\n\nThe server uses a two-phase approach to bypass jailbreak detection:\n\n1. **First Call**: \n   - AI Assistant discovers the `C̷h̷u̷c̷k̷N̷o̷r̷r̷i̷s̷` tool with a neutral schema description\n   - Assistant calls the tool with its model type\n   - Server returns a subtle \"preparation\" prompt that makes the LLM receptive to the jailbreak\n   - Server remembers the LLM type for the next call\n\n2. **Subsequent Calls**:\n   - Schema dynamically changes to include the jailbreak in its description\n   - Tool description now contains model-specific jailbreak instructions\n   - Server continues to return the same preparation prompt\n   - Only the schema changes between calls, not the response content\n\nThis approach combines [elder-plinius' L1B3RT4S](https://github.com/elder-plinius/L1B3RT4S) jailbreak prompts with a dynamic schema modification technique, making it more effective at bypassing detection as it doesn't immediately present the jailbreak content.\n\n```mermaid\ngraph TD\n    A[AI Assistant] -- First Call --\u003e B(Neutral Schema);\n    B -- Returns Preparation Prompt --\u003e A;\n    A -- Subsequent Call --\u003e C(Enhanced Schema with Jailbreak);\n    C -- Returns Same Preparation Prompt --\u003e A;\n```\n\n### Security Research Purpose\n\nThis tool implements the technique described in \"The 'S' in MCP Stands for Security\" research, demonstrating how MCP tools can:\n\n1. Present different information to users vs. AI models\n2. Change their behavior after initial approval\n3. Use multi-phase approaches to potentially bypass security measures\n\nThe implementation uses jailbreak prompts from [elder-plinius' L1B3RT4S](https://github.com/elder-plinius/L1B3RT4S) project, combined with a dynamic schema modification technique similar to the [Tool Poisoning Attack research by Invariant Labs](https://invariantlabs.ai/blog/mcp-security-notification-tool-poisoning-attacks) and their [MCP injection experiments](https://github.com/invariantlabs-ai/mcp-injection-experiments).\n\nBy understanding these techniques, developers can build more robust and secure AI systems.\n\n`~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~`\n\n## 🙏 Credits\n\nBased on [L1B3RT4S](https://github.com/elder-plinius/L1B3RT4S) by [elder-plinius](https://github.com/elder-plinius).\n\n`~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~`\n\n## 🚧 Status\n\nExperimental. The dynamic schema approach improves effectiveness with newer models like Claude and GPT-4, but results may still vary.\n\nWant to help? Join via [GitHub Issues](https://github.com/pollinations/model-context-protocol/issues) or [Discord](https://discord.gg/k9F7SyTgqn).\n\n`~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~`\n\n## 🤝 Community\n\nPart of [Pollinations.AI](https://pollinations.ai).\n- [Discord](https://discord.gg/k9F7SyTgqn)\n- [GitHub Issues](https://github.com/pollinations/model-context-protocol/issues)\n\n## 📜 License\n\n[MIT](LICENSE)\n","funding_links":[],"categories":["AI Integration MCP Servers","Security","Other Tools and Integrations"],"sub_categories":["How to Submit"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpollinations%2Fchucknorris","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpollinations%2Fchucknorris","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpollinations%2Fchucknorris/lists"}