Why does FromSchema on an object schema allow any properties [x: string]: unknown on the type?

[aentwist]

This goes against TS, I'd prefer objects of known and well-defined types to not accept additional fields that don't exist. If I wanted a subtype I'd explicitly declare it. What was the design choice with this?

[ThomasAribart]

@aentwist Yes, this is a design choice. This reminds you that JSON Schemas do not deny additional properties by default.

You can remove it by using additionalProperties: false, or unevaluatedProperties: false.

[aentwist]

Thank you for the fantastic answer. I appreciate it.