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Designs incremental migration strategies, identifies service boundaries, produces dependency maps and migration roadmaps, and generates API facade designs for aging codebases. Use when modernizing legacy systems, implementing strangler fig pattern or branch by abstraction, decomposing monoliths, upgrading frameworks or languages, or reducing technical debt without disrupting business operations.

Install

npx skills add Jeffallan/claude-skills --skill legacy-modernizer -a claude-code

Installs to .claude/skills/legacy-modernizer/ · Each command fetches the skill straight from GitHub with the open skills CLI.

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Byte-identical to the scanned commit, with the repository’s licence and a SOURCE.txt.

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Why 92

Security100
Provenance89
Maintenance100
Licence100
Adoption64

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