Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 1 Nov 2026. What's built · Install 0.2.0
jadpo
Reference: Standard library

Standard types

TokenCount

On this page

How many tokens a prompt or an answer holds, by its model's tokenizer: a whole number from 0.

AI; ordered; since Jadpo 0.1.0.

Make one

Build one from a whole number from 0 to 9007199254740991, TokenCount(0); a number outside them breaks min or max.

text.parse(raw, as: TokenCount) reads one from its text; text that isn't one at all fails malformed, such as -1, 1.5 or 1,200.

Text, JSON and storage

text.from writes its canonical text, the one form text.parse reads back. JSON sends it as a number.

Text JSON
0 0
350 350
128000 128000

It is stored in one column named for the field, of type bigint. 350 is stored as 350.

Shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value Shown
0 0
350 350
128000 128,000

Operations

It has the contract's own operations: text.parse, text.from, text.format, json.read, json.write and ==. It is ordered, so < and sorting take it. Every standard type meets one contract says how they work.

Markdown for agents: /docs/types/type-token-count.md.Built from Jadpo main at e00e61f.