Preparation and Initialization

The work that happens before an audit starts has an outsized effect on what the audit actually produces. A project that arrives with a frozen commit, complete documentation, a clean test suite, a clear list of invariants, and a named technical point-of-contact will get findings that focus on subtle, high-value issues. A project that arrives with a moving target, sparse comments, and no specification will get findings that focus on the auditor's struggle to understand what the code is supposed to do.

This section covers the four building blocks of a well-prepared engagement:

• Audit prerequisites — the artifacts (code freeze, documentation, threat model, test suite, prior reviews, deployment plan) that every audit needs before kickoff.
• The pre-audit checklist — a concrete, line-by-line list project teams can work through to confirm readiness.
• The initial code walkthrough — a structured kickoff meeting in which the development team gives auditors the mental model they need to read the code efficiently.
• Communication channels — how to keep the conversation flowing during the engagement across time zones, languages, and tool preferences, without overwhelming either side.

Why Preparation Matters

Audit hours are expensive and finite. Every hour an auditor spends reverse-engineering what a function is supposed to do is an hour not spent looking for the ways it can be made to do something else. Good preparation shifts the auditor's effort from comprehension to adversarial analysis, which is where the value of an external review actually lives.

A useful rule of thumb: if a new engineer joining your team would need a week to become productive on the codebase, an auditor will too — unless the documentation, tests, and walkthrough close that gap. The sections that follow describe how to close it.

A Preparation Mindset

Treat the audit kickoff the way you would treat the launch itself: as a non-revocable event. Once the engagement begins, the scope, commit hash, and scope are effectively locked in. Late additions of new contracts or refactors mid-audit either erode the value of the review (if the auditor is forced to re-examine prior work) or quietly leave parts of the system unaudited (if they don't). The goal of preparation is to make sure that on day one, the right code is in front of the right people, with everything they need to do their best work.