Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 30 Oct 2026. What's built · Install 0.1.0
jadpo
Reference: Failures

Failures · rule

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}
text
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_onlycheck failed: 1 error, 1 file

Markdown for agents: /docs/errors/failure.kind_runtime_only.md.Built from Jadpo main at a707efb.