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

ErrorsFailures · rule

failure.duplicate_context_field

Failure field is given twice.

Area 4, Failures; not declinable; the next step is usually the agent's.

example
type Lookup = Text {}type Missing = Failure {    kind: FailureKind.not_found    internal: {        lookup: Lookup    }}action find(lookup: Lookup) fails Missing -> Lookup {    reject Missing {        lookup: lookup        lookup: lookup    }}
jadpo checkcheck failed: 1 error, 1 file

error lookup is given twice

--> main.jadpo:13:9

   |12 |         lookup: lookup   |         ------ first given here13 |         lookup: lookup   |         ^^^^^^ given again
reason
Each field of Missing is given once, so the log and the client never have to guess which value counts.
next
Remove one lookup (agent)
rule
failure.duplicate_context_field
help
https://jadpo.dev/docs/errors/failure.duplicate_context_field

Markdown for agents: /docs/errors/failure.duplicate_context_field.md.Built from Jadpo main at aee2e8f.