Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 30 Oct 2026. What's built · Install 0.1.0
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Reference: Values and types

Values and types · rule

type.type_argument_count

Type has the wrong number of type arguments.

Area 2, Values and types; not declinable; the next step is usually the agent's.

example
type Tag = Text {    max_length: 30}type Basket = Object {    tags: List<Tag, Tag>}
text
error: `List` takes one type argument, as in `List<Tag>` --> main.jadpo:6:11  |6 |     tags: List<Tag, Tag>  |           ^^^^^^^^^^^^^^ 2 given  reason: `List` holds values of the type in `< >`, so it needs exactly 1.  next: Write `List` with one type argument, as in `List<Tag>` (agent)  rule: type.type_argument_count  help: https://jadpo.dev/docs/errors/type.type_argument_countcheck failed: 1 error, 1 file

Markdown for agents: /docs/errors/type.type_argument_count.md.Built from Jadpo main at a707efb.