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Validating String Formats

Checked
djankies·vlatest·other·MIT

Validates string formats against specified patterns, ensuring data integrity and preventing errors in your applications.

Repository

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 djankies/claude-configs --skill validating-string-formats -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

djankies

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 djankies/claude-configs at a82763a6e7.

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

Commit
a82763a6e7
Manifest
zod-4/skills/validating-string-formats/SKILL.md
Scanned
2 files, 445 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 validates strings against specified formats, ensuring they adhere to defined patterns. It can check for things like valid email addresses, phone numbers conforming to a particular structure, or dates in a specific format. The skill provides a reliable way to confirm data integrity and prevent errors caused by incorrectly formatted input.

When to use it

  • Data Entry Validation: Ensure user-provided information (like addresses or credit card details) is correctly formatted before processing.
  • API Input Sanitization: Validate incoming data from external APIs to prevent malformed requests.
  • Report Generation: Guarantee that dates and other key fields in generated reports are consistently formatted.
  • Configuration File Parsing: Verify the structure of configuration files, preventing parsing errors due to incorrect formatting.

Key capabilities

  • Format validation
  • String pattern matching
  • Data integrity checks

Example prompts

  • "Validate if '[email protected]' is a valid email address."
  • "Check if '123-456-7890' matches the US phone number format."
  • "Is '2023-12-25' a valid date in YYYY-MM-DD format?"

Tips & gotchas

The skill requires you to provide the expected string format for validation. Incorrectly defined formats will lead to inaccurate results, so ensure the patterns are precise and well-defined.