Specification Incompleteness

Specification incompleteness occurs when the design documentation or the mathematical model of a protocol fails to fully describe its intended behavior or handle all possible scenarios. This is a common pitfall in software development, but it is particularly dangerous in smart contracts where the code is the final authority.

If the specification does not account for edge cases, unusual user actions, or interaction with other protocols, the resulting implementation will be flawed. These gaps are often where vulnerabilities are found.

Achieving a complete specification is a rigorous task that requires deep domain knowledge and careful planning. It involves defining the system's state, transition rules, and error handling in exhaustive detail.

When specifications are incomplete, auditors and developers are essentially guessing at the intended behavior, which is a major source of systemic risk.