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 Entities, stores and migrations · rule

`data.duplicate_rule`

Unique rule or index repeats another.

Area 5, Entities, stores and migrations; not declinable; the next step is usually the agent's.

The same two fields in another order are the same rule:

example

entity Account {    id: Uuid    tenant: Text    handle: Text    unique: {        tenant_handle: [tenant, handle]        handle_tenant: [handle, tenant]    }}

jadpo checkcheck failed: 1 error, 1 file

error The unique rule handle_tenant repeats tenant_handle

--> main.jadpo:8:9

  |7 |         tenant_handle: [tenant, handle]  |         ------------- first here8 |         handle_tenant: [handle, tenant]  |         ^^^^^^^^^^^^^ same fields

reason: Both cover the same fields, in whatever order, so they are one rule; a write's conflict names one of them (area 6).
next: Remove handle_tenant (agent)
rule: data.duplicate_rule
help: https://jadpo.dev/docs/errors/data.duplicate_rule

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