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Incremental legacy code modernization v1.0.0

Use this resource to modernise legacy code in steps without changing its public behaviour

New

  • 413 downloads
  • 170 likes
  • 144 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install legacy-code-modernization

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent plans the incremental replacement of a framework or dependency: compatibility adapters, characterisation tests and a data-safe rollback. It only engages once a migration is confirmed, and checks that public behaviour stays the same.

Mostly picked by

Updated November 2, 2026

Card for the “Incremental legacy code modernization” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: use cases and scope
  • SKILL.md: incremental replacement steps
  • SKILL.md: characterisation tests and example

Good fit for

  • Your application depends on a framework version that is no longer maintained
  • You want to migrate without interrupting service

Not for

    Tags

    • legacy
    • migration
    • technical debt
    • compatibility

    About

    You say

    “Plan the step-by-step migration of this module to the new version, with characterisation tests before any change.”

    Card for the “Incremental legacy code modernization” skill

    Skill published by sickn33 under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to modernise legacy code in steps without changing its public behaviour
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md2.2 KB

    Origin and licence

    Listed unmodified

    Author
    sickn33
    Source
    github.com/sickn33/agentic-awesome-skills/tree/e9809578fd426a284af017c5db99f8eb6628e6ca/skills/legacy-modernizer
    Licence
    MIT

    Notice

    « legacy-modernizer » (sickn33, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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