Michelson Code Validator

WHAT IT DOES

Michelson Code Validator provides comprehensive validation and analysis for Michelson smart contract code. It reads and displays Michelson source code input with full analysis support, validation status indicating whether the code passes all checks, error messages with detailed descriptions, warning messages highlighting potential issues, type checking results validating type safety across all operations, instruction sequence analysis examining the order and validity of instructions, stack operation validation ensuring correct stack manipulation, control flow analysis mapping execution paths through conditionals and loops, contract entry points detection identifying public interfaces, parameter types validation for contract inputs, storage types validation for contract state, code size metrics measuring contract footprint, instruction count tracking total operations, gas usage estimation for cost analysis, contract metadata extraction, annotation validation for type annotations, semantic analysis results for deeper understanding, AST representation for structural insights, instruction dependency analysis for operation ordering, contract invocations tracking external calls, failure paths detection for error handling, code coverage analysis for testing completeness, and cost model results for resource planning. All data is organized in a clean dashboard with source code display, validation results, and detailed analysis output.

HOW TO USE

Enter your Michelson source code in the input area. Click "Validate Code" to start the validation process. The tool will analyze the source code, perform type checking, validate stack operations, analyze control flow, and detect contract entry points. Results are displayed in organized cards showing validation status, type checking results, stack operation validation, control flow analysis, entry points detected, instruction count, and gas estimate. The validation output section provides detailed logs including errors, warnings, and analysis steps. The tool works with any Michelson smart contract that follows standard Michelson syntax and semantics.

THE MECHANISM

Michelson Code Validator performs client-side static analysis of Michelson smart contract code. The tool first parses the source code to identify the three main sections: parameter, storage, and code. It then validates each section for syntactic correctness and semantic consistency. The type checker analyzes all operations to ensure type safety, verifying that operations receive the correct types and that the stack is properly managed. Stack operation validation examines DUP, SWAP, DROP, and DIP instructions to ensure correct stack depth and element ordering. Control flow analysis maps execution paths through IF_LEFT, IF_RIGHT, LOOP, and other branching instructions, identifying potential unreachable code or infinite loops. Entry point detection extracts all annotated entry points from the parameter section, providing visibility into the contract's public interface. Instruction count tracks all operations for code size metrics, while gas estimation applies cost models based on operation complexity and instruction count. Semantic analysis identifies common patterns and potential issues such as FAILWITH usage, CONTRACT calls, and LAMBDA usage. The tool also detects annotations, validates type annotations, and provides warnings for potential issues like missing sections or unused instructions.

WHAT IT CANNOT SEE

Michelson Code Validator cannot execute Michelson code on-chain to verify behavior against actual Tezos state, as it uses static analysis rather than runtime execution. The tool cannot detect runtime errors that only occur when executed in the actual Tezos VM environment, as these may depend on contract state and transaction context. It cannot verify that the Michelson code is secure or free from vulnerabilities without formal verification, which requires additional security analysis tools. The tool cannot guarantee that the validated code will behave identically when deployed to different Michelson versions or Tezos environments, as VM implementations may vary. It cannot predict actual gas costs accurately without on-chain context, as gas costs depend on network conditions and execution environment. The tool also cannot detect issues that only manifest under specific conditions or with particular inputs.

PLEASE NOTE

Michelson Code Validator supports EVM-compatible chains only. The tool is a client-side analysis tool and does not execute or deploy code to any blockchain. Validation results are for development and testing purposes only — always test contracts thoroughly on test networks before mainnet deployment. The tool is free to use and does not store or transmit any source code or validation results off-device. Always review validation output carefully before relying on analysis results.