Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 5 Nov 2026. What's built · Install 0.3.0

ReferenceErrors

Errors Reads and writes · rule

`data.set_generated_field`

Write sets a field the store generates.

Area 6, Reads and writes; not declinable; the next step is usually the agent's.

example

type Title = Text {    max_length: 80}entity Note {    id: Uuid    title: Title    written_at: Instant {        generated: Generated.on_create    }}action jot_down(title: Note.title, at: Note.written_at) -> Note {    return Note.create {        set: {            title: title            written_at: at        }    }}

jadpo checkcheck failed: 1 error, 1 file

error Note.create sets written_at, which the store generates

--> main.jadpo:17:13

   |17 |             written_at: at   |             ^^^^^^^^^^ generated

reason: Note.written_at is generated from the operation's clock; code never assigns it.
next: Remove written_at from set: (agent)
rule: data.set_generated_field
help: https://jadpo.dev/docs/errors/data.set_generated_field

Markdown for agents: /docs/errors/data.set_generated_field.md.Built from Jadpo main at aee2e8f.