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 Sign-in and identity · rule

`semantic.principal_variant_unknown`

Principal variant is not user or service.

Area 8, Sign-in and identity; not declinable; the next step is usually the agent's.

A role is a field of the user's entity, which policy reads (area 9), never a kind of caller:

example

principal {    user: {        subject: Member.handle    }    admin: {        subject: Member.handle    }}type Handle = Text {    max_length: 40}entity Member {    id: Uuid    handle: Handle {        unique: true    }}

jadpo checkcheck failed: 1 error, 1 file

error admin isn't a kind of caller

--> main.jadpo:5:5

  |5 |     admin: {  |     ^^^^^ not `user` or `service`

reason: A principal declares user:, a person, and service:, another system; a role or a tenant is a field of the user's entity, which policy reads (area 9).
next: Remove admin (agent)
rule: semantic.principal_variant_unknown
help: https://jadpo.dev/docs/errors/semantic.principal_variant_unknown

Markdown for agents: /docs/errors/semantic.principal_variant_unknown.md.Built from Jadpo main at aee2e8f.