Test Your Types
CheckedVerify data type correctness across your codebase using this tool's automated type checking and validation capabilities.
Install on your platform
Showing Claude Code. One command installs this skill into any of the agents below.
- 1
Run this in your project
terminal$ npx skills add marius-townhouse/effective-typescript-skills --skill test-your-types -a claude-code Uses the open-source
skillsCLI and needs Node.js. Add-gto install it for your user instead of this project.
What we know about this skill
Publisher
marius-townhouse
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.
Automated safety checks
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 marius-townhouse/effective-typescript-skills at d754db2077.
The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.
- Commit
- d754db2077
- Manifest
- skills/test-your-types/SKILL.md
- Scanned
- 1 file, 241 lines
About this skill
What it does
This skill, test-your-types, allows you to verify the types of variables and expressions within TypeScript code. It can identify type mismatches and potential errors early in development, improving code reliability and reducing runtime issues. The skill provides feedback on expected versus actual types, helping developers understand and correct type-related problems.
When to use it
- Debugging Type Errors: When encountering unexpected behavior or errors related to TypeScript's type system.
- Code Reviews: To quickly assess the correctness of type annotations in a codebase.
- Learning TypeScript: As a tool for understanding how TypeScript’s type checking works and identifying common mistakes.
- Refactoring Existing Code: When modifying codebases with complex types to ensure changes don't introduce new errors.
Key capabilities
- Type verification of variables
- Type verification of expressions
- Identification of type mismatches
Example prompts
- "Test the type of
myVariable." - "Verify that
calculateSum(a, b)returns a number." - "Check the types in this code snippet: [code]"
Tips & gotchas
This skill requires access to TypeScript code. The accuracy of the results depends on the correctness of the provided code and type annotations.