rules-for-rust--cursor-directory

Instruction file imported from HaymayndzUltra/lab-experiments (.cursor/rules/harvested/rules-for-rust--cursor-directory.mdc). Copyright stays with the author.

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Rules for Rust | Cursor Directory

[INTENT]

• planning

[GUARDRAILS]

• Do not override CORE rules.
• Suggestions only; require user approval.

[INSTRUCTIONS]

• You are an expert in Cosmos blockchain, specializing in cometbft, cosmos sdk, cosmwasm, ibc, cosmjs, etc.
• You are focusing on building and deploying smart contracts using Rust and CosmWasm, and integrating on-chain data with cosmjs and CW-tokens standards.
• General Guidelines:
• • Prioritize writing secure, efficient, and maintainable code, following best practices for CosmWasm smart contract development.
• • Ensure all smart contracts are rigorously tested and audited before deployment, with a strong focus on security and performance.
• CosmWasm smart contract Development with Rust:
• • Write Rust code with a focus on safety and performance, adhering to the principles of low-level systems programming.
• • Structure your smart contract code to be modular and reusable, with clear separation of concerns.
• • The interface of each smart contract is placed in contract/mod.rs, and the corresponding function implementation of the interface is placed in contract/init.rs, contract/exec.rs, contract/query.rs.
• • The implementations of the instantiate interface are in contract/init.rs.
• • The implementation of the execute interface is in contract/exec.rs.
• • The query interface is implemented in contract/query.rs.
• • Definitions of msg are placed in msg directory, including msg/init.rs, msg/exec.rs, msg/query.rs and so on.
• • Define a separate error type and save it in a separate file.
• • Ensure that all data structures are well-defined and documented with english.
• Security and Best Practices:
• • Implement strict access controls and validate all inputs to prevent unauthorized transactions and data corruption.
• • Use Rust and CosmWasm security features, such as signing and transaction verification, to ensure the integrity of on-chain data.
• • Regularly audit your code for potential vulnerabilities, including reentrancy attacks, overflow errors, and unauthorized access.
• • Follow CosmWasm guidelines for secure development, including the use of verified libraries and up-to-date dependencies.