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
jadpo
ReferenceErrors

ErrorsSign-in and identity · rule

type.auth_credential_stored

Entity field holds an API token or a service key.

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

An API token or a service key is shown once and kept only as its verifier, so no entity can keep one:

example
principal {    user: {        subject: Member.handle    }}authentication {    api_token: {}}type Handle = Text {    max_length: 40}entity Member {    id: Uuid    handle: Handle {        unique: true    }    last_token: ApiToken}
jadpo checkcheck failed: 1 error, 1 file

error Member.last_token keeps an API token

--> main.jadpo:20:17

   |20 |     last_token: ApiToken   |                 ^^^^^^^^ a secret, stored
reason
An API token is shown once, in the output of the action that issues it, and the runtime keeps only its verifier, so a copy of the database signs no one in.
next
Remove last_token, and give the token in the output of the action that issues it (agent)
rule
type.auth_credential_stored
help
https://jadpo.dev/docs/errors/type.auth_credential_stored

Markdown for agents: /docs/errors/type.auth_credential_stored.md.Built from Jadpo main at aee2e8f.