Refactoring and Migration Prompts

Use prompts to plan and execute large code changes safely.

35 min

3 sections

refactoring

migration

legacy-code

01. Ask for an inventory before changes

Section 1 of 3

For migrations, first ask the model to inventory usage sites, public APIs, tests, config, docs, and runtime dependencies. This reduces missed call sites and accidental behavior changes.

text

We are migrating from moment to date-fns.

Step 1 only:
- Find every import and wrapper around moment.
- Group usage by parsing, formatting, duration, timezone, and comparison.
- Identify risky cases that need human review.
- Do not edit files yet.

Code Review Prompts

Structured Outputs and Schemas

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