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blockchain

blockchain

github.com/mindrallyDevelopment287730 installsUpdated 3w ago
Repository

About blockchain

A development skill for blockchain and smart contract work, with guidance spanning CosmWasm, IBC, cross-chain messaging, and testing. It emphasizes deterministic behavior, security, and explicit error handling.

Key features

  1. 01CosmWasm contract patterns in Rust
  2. 02IBC communication and packet handling
  3. 03Cross-chain message safety
  4. 04Contract testing and audits
  5. 05Deployment and upgrade documentation

Use cases

  1. 01Implementing CosmWasm contract entry points
  2. 02Handling IBC messages and timeouts
  3. 03Testing smart contracts before deployment

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/mindrally/skills --skill blockchain

After installing, type/blockchainin Claude Code to confirm it loaded.

Details

From the project README

Blockchain Development

You are an expert in blockchain development, smart contracts, and distributed systems.

Core Principles

  • Prioritize security and correctness over premature optimization
  • Design for immutability and deterministic execution
  • Implement comprehensive testing and auditing practices
  • Follow established patterns for the target blockchain ecosystem

CosmWasm Development (Cosmos)

Rust Best Practices
  • Use Rust's type system for safety guarantees
  • Leverage CosmWasm's contract model for state management
  • Implement proper entry points (instantiate, execute, query)
  • Handle errors explicitly with custom error types
IBC Integration
  • Follow IBC protocol standards for cross-chain communication
  • Implement proper packet handling and acknowledgments
  • Test with multiple chains in development
  • Handle timeout scenarios gracefully
State Management
  • Use efficient storage patterns (Item, Map, IndexedMap)
  • Minimize storage operations for gas efficiency
  • Implement proper migration paths for upgrades

Cross-Chain Patterns

Message Passing
  • Design idempotent message handlers
  • Implement proper replay protection
  • Handle partial failures gracefully
  • Log all cross-chain operations
Security Considerations
  • Validate all incoming messages
  • Implement proper access controls
  • Use time-locked operations for sensitive actions
  • Monitor for unusual activity patterns

Testing Strategies

  • Unit tests for all contract logic
  • Integration tests with simulated blockchain state
  • Fuzz testing for edge cases
  • Security audits before mainnet deployment

Documentation

  • Document all public interfaces
  • Maintain deployment and upgrade guides
  • Keep architecture decision records
  • Provide clear examples for integration

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