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
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ReferenceErrors

ErrorsPolicy · rule

policy.effect_unknown

Policy holds something that isn't a grant or a setting.

Area 9, Policy; not declinable; the next step is usually the agent's.

A policy grants create, read, update and delete; an action needing other people is listed under actions::

example
type Handle = Text {    max_length: 40}entity User {    id: Uuid    handle: Handle {        unique: true    }}principal {    user: {        subject: User.handle    }}entity Note {    id: Uuid    owner_id: User.id {        on_delete: OnDelete.cascade    }    policy: {        publish: [owner_id]    }}
jadpo checkcheck failed: 1 error, 1 file

error publish isn't something a policy grants

--> main.jadpo:25:9

   |25 |         publish: [owner_id]   |         ^^^^^^^ not a grant or a setting
reason
An entity's policy: lists who may create, read, update and delete its records, and may say which tenant: they belong to. Every action takes its permission from these; one that needs others is listed under actions: in policy.jadpo.
next
Remove publish (agent)
rule
policy.effect_unknown
help
https://jadpo.dev/docs/errors/policy.effect_unknown

Markdown for agents: /docs/errors/policy.effect_unknown.md.Built from Jadpo main at aee2e8f.