code-migration

Audit, plan, and execute staged codebase migrations with validation gates.

1|Updated Mar 6, 2026
One-click install
npx skills add https://github.com/pycode4micro/bushserver --skill code-migration-pycode4micro
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: code-migration
Source: https://github.com/pycode4micro/bushserver/tree/main/src/bushserver/seeds/skills/package/code-migration
Command: npx skills add https://github.com/pycode4micro/bushserver --skill code-migration-pycode4micro

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Code migrations are risky because breaking changes and ordering constraints can leave a codebase half-migrated while behavior silently diverges from what users expect.

Core Features & Use Cases

  • Structured migration sequencing: audits impact, builds a batch plan, and enforces strict execution order.
  • Compatibility-first safety: handles breaking changes with explicit compatibility or replacement strategies.
  • Proof through equivalence validation: runs build, runtime, regression, and compatibility checks after each batch to prevent unsafe progress.
  • Defined scope boundaries: targeted for framework/language/runtime/dependency/platform upgrades, not architecture redesigns like monolith-to-microservices.

Quick Start

Use the code-migration skill to upgrade a project from Python 3.9 to 3.12 by first running the required audit and strategy files, then confirming the staged plan, and only executing migrations batch-by-batch after validation passes.

Frequently Asked Questions about code-migration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I plan a framework upgrade with breaking changes?

To plan a framework upgrade with breaking changes, you must run a mandatory audit to assess cross-module impact, build a staged batch plan, and enforce strict execution ordering. This prevents half-migrated codebases and silent behavior divergence.

What is the best way to sequence dependency replacement during a code migration?

Sequencing dependency replacement requires a structured migration workflow that audits impact first, builds a batch plan, and enforces strict execution order. You must validate compatibility after each batch before progressing safely.

Can I use a staged migration plan for a Python runtime upgrade?

Yes, you can use a staged migration plan for a Python runtime upgrade by running required audit and strategy files first, confirming the staged plan, and executing migrations batch-by-batch only after validation passes.

Does this migration approach work for a monolith-to-microservices architecture redesign?

No, this approach does not work for a monolith-to-microservices architecture redesign. Scope boundaries strictly target framework, language, runtime, dependency, and platform upgrades requiring compatibility handling.

Why do I need validation checks after each batch of a code migration?

You need validation checks after each batch of a code migration to run build, runtime, regression, and compatibility tests. This proof through equivalence validation prevents unsafe progress and incomplete migrations.

When do I need compatibility testing for a platform upgrade?

You need compatibility testing for a platform upgrade when handling breaking changes with explicit replacement strategies. It ensures safe progress by running regression and compatibility checks after each execution batch.