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Singleton pattern for one shared instance v1.0.0

Use this resource to guarantee a single shared instance across the application

New

  • 498 downloads
  • 216 likes
  • 199 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install singleton-shared-instance

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 sets up a singleton for configuration or a shared connection and points out the trade-offs, such as global coupling. You get the code and a list of cases where a plain module is enough.

Mostly picked by

Updated November 2, 2026

Card for the “Singleton pattern for one shared instance” skill

Details

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

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What you get

  • SKILL.md: principle, use cases, cases to avoid and trade-offs
  • SKILL.md: examples and references

Good fit for

  • A single connection to a database or service must be shared
  • Global configuration must be read the same way everywhere

Not for

    Tags

    • singleton
    • instance
    • configuration
    • architecture

    About

    You say

    “Create a singleton for my API client configuration so it is read only once.”

    Card for the “Singleton pattern for one shared instance” skill

    Skill published by patternsdev 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 guarantee a single shared instance across the application
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.3 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md11.5 KB

    Origin and licence

    Listed unmodified

    Author
    patternsdev
    Source
    github.com/patternsdev/skills/tree/48bf58a488cd210bcfad280b09c3a00403964d9d/javascript/singleton-pattern
    Licence
    MIT

    Notice

    « singleton-pattern » (patternsdev, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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