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: Logic

Logic · rule

failure.attempt_required

Call that can fail is not handled.

Area 3, Logic; not declinable; the next step is usually the agent's.

example
type Note = Text {}type Refused = Failure {    kind: FailureKind.rejected}action child(note: Note) fails Refused -> Note {    reject Refused}action parent(note: Note) fails Refused -> Note {    return child(note)}
text
error: `child` can fail, and nothing handles it --> main.jadpo:12:12   |12 |     return child(note)   |            ^^^^^^^^^^^ can fail with `Refused`  reason: A call that can fail says so where it is made: `attempt` passes its failures on to the caller's `fails` list, and `match` handles each one.  next: Start the statement with `attempt`, or `match` on `child(...)` and handle `Refused` (agent)  rule: failure.attempt_required  help: https://jadpo.dev/docs/errors/failure.attempt_requiredcheck failed: 1 error, 1 file

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