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Error handling: classes, handlers, RFC 9457 v1.0.0

Use this resource to structure the errors and error responses of an application

New

  • 526 downloads
  • 181 likes
  • 122 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install error-handling-problem-details

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 consistent error handling: custom TypeScript error classes, a global Express handler, Problem Details responses (RFC 9457), React error boundaries, @ControllerAdvice for Spring Boot and FastAPI exception handlers.

Mostly picked by

Updated November 2, 2026

Card for the “Error handling: classes, handlers, RFC 9457” skill

Details

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

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What you get

  • SKILL.md: custom error classes and global Express handler
  • SKILL.md: Problem Details (RFC 9457), React error boundaries and Spring Boot
  • SKILL.md: FastAPI handlers, anti-patterns and checklist

Good fit for

  • Your error responses change shape from one route to another
  • One error crashes an entire React page

Not for

    Tags

    • errors
    • problem details
    • rfc 9457
    • api

    About

    You say

    “Standardise the errors of my Express API to the Problem Details format with one code per error type.”

    Card for the “Error handling: classes, handlers, RFC 9457” skill

    Skill published by claude-dev-suite 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 structure the errors and error responses of an application
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md4.9 KB

    Origin and licence

    Listed unmodified

    Author
    claude-dev-suite
    Source
    github.com/claude-dev-suite/claude-dev-suite/tree/e10ab644ba43abe2abc923399226df4af7337214/skills/best-practices/error-handling
    Licence
    MIT

    Notice

    « error-handling » (claude-dev-suite, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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