assert

Original：🇺🇸 English

Translated

TypeScript assertion function for runtime type narrowing with descriptive error messages. Based on tiny-invariant.

1installs

Added on2026-02-04

NPX Install

npx skill4agent add andrelandgraf/fullstackrecipes assert

To set up Assertion Helper, refer to the fullstackrecipes MCP server resource:

Resource URI:

recipe://fullstackrecipes.com/assert

If the MCP server is not configured, fetch the recipe directly:

bash

curl -H "Accept: text/plain" https://fullstackrecipes.com/api/recipes/assert