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Jwt Token Validator

Listed
jeremylongshore·vlatest·security·MIT

Provides JWT guidance and assistance for implementing security and authentication.

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 jeremylongshore/tons-of-skills-marketplace --skill jwt-token-validator -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

jeremylongshore

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.

Nobody has reviewed this code. TrustedSkills indexes and links skills; it does not audit, run or scan them. A skill runs with whatever access you give your agent — read the source before you install it.

Automated safety checks

scanned

We could not read this skill's source, so none of the checks below were run.

Not scanned. none of the 396 skills in the repository match this slug — it was most likely renamed or removed upstream after the registry indexed it Source recorded as jeremylongshore/claude-code-plugins-plus-skills.
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About this skill

What it does

The jwt-token-validator skill validates JSON Web Tokens (JWTs) against a provided public key or URL. It can verify the signature and claims of a JWT, ensuring its authenticity and integrity. This is crucial for securely verifying user authentication and authorization in web applications and APIs.

When to use it

  • API Security: Verify that incoming requests include valid JWTs before granting access to protected resources.
  • User Authentication Verification: Confirm the validity of a token presented by a user during login or subsequent actions.
  • Token Exchange: Validate tokens received from external identity providers (IdPs) as part of a token exchange process.
  • Decryption Validation: Ensure that encrypted data protected by JWTs is only decrypted with valid, verified tokens.

Key capabilities

  • JWT Signature Verification
  • Public Key Validation
  • Claim Verification
  • URL-based Public Key Retrieval

Example prompts

  • "Validate this JWT: [JWT Token] using public key: [Public Key]"
  • "Is this token valid? [JWT Token] Key URL: [Public Key URL]"
  • "Verify the 'email' claim in this JWT: [JWT Token] against a public key."

Tips & gotchas

  • Ensure you have access to the correct and up-to-date public key for validation. Incorrect keys will lead to false positives or negatives.