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Handling Validation Errors

Checked
zaggino·vlatest·other

Gracefully manages and provides actionable feedback on data validation errors during processing.

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add zaggino/z-schema --skill handling-validation-errors -a claude-code
  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

zaggino

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned zaggino/z-schema at e817043c95.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Scanned
1 file, 217 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill enhances the handling of validation errors generated by the z-schema library. It allows AI agents to inspect, filter, map, and present these errors in a user-friendly way. Specifically, it focuses on processing ValidateError objects, which contain detailed information about each individual error within the .details array. This skill enables graceful management of validation failures and provides actionable feedback based on schema validation results.

When to use it

  • When validating data against a z-schema schema and needing to provide specific error messages to users or systems.
  • In situations where you want to extract key information (like the error code, path, and message) from complex ValidateError objects.
  • To create custom error reporting workflows based on the details contained within a z-schema validation failure.

Key capabilities

  • Inspects ValidateError objects returned by z-schema.
  • Accesses individual SchemaErrorDetail elements within the .details array of a ValidateError.
  • Extracts specific error information such as: message, code, parameters, path, keyword, and schema details.
  • Supports both "try/catch" (default) and "safe mode" for error handling.

Example prompts

  • "Show me the paths of all validation errors."
  • "Extract the error codes from this z-schema validation failure."
  • "Format this ValidateError object into a human-readable report."

Tips & gotchas

  • Requires the z-schema library to be installed and used for data validation.
  • The skill works with both "try/catch" and "safe mode" error handling approaches offered by z-schema. Choose the appropriate method based on your application's needs.
  • Error details are structured within a .details array, so iterating through this array is necessary to access individual error messages and information.