Prepare Legacy Code for AI

Short summary

Preparing a legacy codebase for AI-assisted refactoring prevents costly mistakes. Key practices: define module scope with business constraints, map function dependencies, generate test suites to establish baselines, identify critical paths (payments, security, performance), and set up side-by-side comparison testing before merging changes.

• •Define scope and document business constraints before AI interaction
• •Map function dependencies and call sites to prevent signature mismatches
• •Generate test baseline with AI, then add edge cases from incident history

Generated with AI, which can make mistakes.