---
title: Cross-File Contextualization
description: How CodeDD understands relationships and patterns across your codebase
category: Software Audit
order: 6
---

# Cross-File Contextualization

Individual file analysis catches local issues. Contextualization connects them — mapping how components interact, where patterns break down, and where systemic risk concentrates.

This runs after [Architecture Analysis & Mapping](/documentation/architecture-analysis-mapping) and before consolidation.

## Why it matters

File-by-file scanners miss cross-cutting problems: inconsistent auth checks, data flowing without sanitization, duplicated logic across modules, and architectural anti-patterns that only appear at system level.

## Domain mapping

CodeDD groups files into logical domains based on directory structure, naming, imports, and framework patterns:

- **Frontend** — UI components, routing, client state
- **Backend** — APIs, business logic, middleware
- **Database** — schemas, migrations, ORM models
- **Infrastructure** — containers, orchestration, CI/CD, config
- **Testing** — unit, integration, and E2E tests

Per domain, you see LOC, file count, complexity, test coverage, and issue density.

## What contextualization checks

**Cross-domain flows** — how frontend, backend, and data layers connect; whether boundaries are respected.

**Security consistency** — auth mechanisms, protected vs. unprotected endpoints, credential handling across files.

**Data flow** — where sensitive data originates, how it moves, whether validation and sanitization happen at each boundary.

**Systemic gaps** — missing input validation, inadequate error handling, absent rate limiting, insufficient test coverage on critical paths.

**Knowledge concentration** — contributor distribution per domain, bus-factor signals, abandoned or high-churn areas.

## Portfolio-level context

For group audits, contextualization also surfaces cross-repository patterns: shared dependencies, common vulnerability types, and technology stack consistency across the portfolio.

## What gets stored

Domain names, file-to-domain mappings, metric summaries, architectural patterns, gap findings, and recommendations. Source code and snippets are not stored.

## Next steps

- [Audit Consolidation & Risk Scoring](/documentation/audit-consolidation-risk-scoring)
- [Recommendations Generation](/documentation/recommendations-generation)
- [Architecture Analysis & Mapping](/documentation/architecture-analysis-mapping)