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 Failures · rule

`failure.missing_context_field`

Rejected failure is missing a field.

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}

jadpo checkcheck failed: 1 error, 1 file

error Missing is missing lookup

--> main.jadpo:11:12

   |11 |     reject Missing   |            ^^^^^^^ fields missing

reason: A failure is raised with every field its client and internal blocks declare, so the client and the log always get them.
next: Give its fields in a block: Missing { lookup: ... } (agent)
rule: failure.missing_context_field
help: https://jadpo.dev/docs/errors/failure.missing_context_field

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