Add CRASH-MCP to community servers list

[nikkoxgonzales]

Description

Adding CRASH (Cascaded Reasoning with Adaptive Step Handling) MCP server - an advanced structured reasoning tool that facilitates iterative problem-solving with flexible validation, confidence tracking, revision mechanisms, and branching support.

Server Details

• Server: CRASH (new server addition)
• Changes to: Adding new server to the registry

Motivation and Context

CRASH addresses the need for systematic, token-efficient reasoning in complex problem-solving scenarios. Originally created as a more streamlined alternative to sequential thinking ("use crash" vs "use sequential_thinking"), it has evolved into a comprehensive reasoning framework. It enables LLMs to break down complex tasks, track confidence levels, revise reasoning steps, explore alternative solution paths, and maintain structured output - particularly valuable for code analysis, system design, debugging, and multi-step problem solving where simple one-shot responses or basic planning fall short.

How Has This Been Tested?

• Tested extensively with Claude Code, Cursor, Claude Desktop, and multiple MCP clients
• Validated complex problem-solving scenarios (database optimization, code analysis, system design)
• Tested confidence tracking and uncertainty handling
• Verified step revision and correction mechanisms
• Confirmed branching functionality for exploring alternative approaches
• Validated structured action integration with tool parameters
• Tested session management for concurrent reasoning chains
• Confirmed backward compatibility with strict mode
• Verified multiple output formats (console, JSON, markdown)

Breaking Changes

None - this is a new server addition with no impact on existing configurations. Full backward compatibility maintained through configurable strict mode.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

CRASH v2.0 is heavily inspired by the MCP Sequential Thinking Server but focuses on token efficiency and flexibility. Key design principles include:

• Token Efficiency: Streamlined prompting without code generation in thoughts or excessive tool listings
• Flexible Validation: Configurable strict mode for legacy compatibility, flexible mode for enhanced features
• Enhanced Features: Confidence tracking (0-1 scale), step revision capabilities, parallel branch exploration, structured tool integration
• Multiple Output Formats: Console (default), JSON, and Markdown formatting options
• Session Management: Support for multiple concurrent reasoning chains with unique identifiers
• Extensive Client Support: Tested and documented for 20+ MCP clients including Cursor, Claude Code, VS Code, Windsurf, etc.

The server includes comprehensive environment variable configuration and has received positive feedback from users who have completely replaced sequential thinking in their workflows. It's particularly effective when agents can't solve issues in one shot or when plan mode falls short.