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

`failure.kind_runtime_only`

Failure kind is raised only by the runtime.

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

example

type Broken = Failure {    kind: FailureKind.internal_fault}

jadpo checkcheck failed: 1 error, 1 file

error Broken can't have the kind internal_fault

--> main.jadpo:2:11

  |2 |     kind: FailureKind.internal_fault  |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ raised only by the runtime

reason: The runtime raises internal_fault itself; an application declares invalid_value, not_found, not_permitted, conflict, rejected, rate_limited and unavailable, so a client's status always means the same thing.
next: Use the kind an application declares that fits this outcome (agent)
rule: failure.kind_runtime_only
help: https://jadpo.dev/docs/errors/failure.kind_runtime_only

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