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legacy-modernization | decision-making

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legacy-modernization

Skill

legacy-modernization

From decision-making

Modernize legacy systems without rewriting from scratch. Use strangler fig, facade, and strategic refactoring.

Popularity

Parent stars

13

Parent forks

2

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/decision-making:legacy-modernization

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Modernize legacy systems incrementally using strangler fig pattern, facade layers, and strategic refactoring.

SKILL.md

26 lines · ~262 tokens

Stats

Parent stars13

Parent forks2

MaintenanceFair

Last CommitMar 11, 2026

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View Source View Plugin View on GitHub View README

Stats

Parent stars13

Parent forks2

MaintenanceFair

Last CommitMar 11, 2026

Actions

View Source View Plugin View on GitHub View README

Legacy Modernization

Modernize legacy systems incrementally using strangler fig pattern, facade layers, and strategic refactoring.

Instructions

Assessment: Understand current system behavior, pain points
Strangler Fig: New services alongside old monolith; gradually redirect traffic
Facade Layer: Wrap legacy with modern API without changing internals
Refactoring: Extract modules one at a time to modern stack
Incremental Value: Each phase delivers business value

Anti-Patterns

Rewrite Everything: "Let's rebuild it right." Result: 2-3 years, misses market. Guard: Keep old system running while new builds alongside.
No Business Alignment: Modernize things users don't care about. Guard: Modernize parts causing business pain first.

Further Reading

Monolith to Microservices — specific modernization patterns

$

npx claudepluginhub sethdford/claude-skills --plugin architect-decision-making

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