Migrating a Large Legacy Codebase with AI Coding Agents
1Key Takeaways
- Originally published on AI Tech Connect .
- What you need to know "Migrate everything" is the failure mode.
- A large repository does not fit in any agent's context window, so the agent loses the cross-file invariants that keep the system correct and ships code that compiles, reads plausibly, and quietly behaves differently.
- Characterisation tests come before any migration.
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3Why it matters
Coding AI shifts how fast software ships and how much human review each change needs. DEV — ML reports that originally published on AI Tech Connect .
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