Module tool_executor 

Tool Executor with Merkle audit integration

This module provides ToolExecutor which wraps tool execution with:

• Timeout protection (DoS prevention)
• Input validation
• Cryptographic result hashing
• Merkle audit trail integration

VEX Innovation

Every tool execution is automatically logged to the audit chain with:

• Tool name and argument hash (not raw args for privacy)
• Result hash for verification
• Execution time metrics

This enables cryptographic proof of what tools were used.

Security Considerations

• All executions have configurable timeouts
• Validation runs before execution
• Audit logging is non-fatal (doesn’t break execution)
• Arguments are hashed before logging (privacy protection)

Structs

ToolExecutor

Tool executor with automatic audit logging and timeout protection.