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 HTTP · rule

`route.output_unexpected`

A no_content route has an output.

Area 7, HTTP; not declinable; the next step is usually the agent's.

A no_content route sends no body:

example

type Memo = Text {    max_length: 200}type MemoId = Uuid {}type AddMemo = Input {    text: Memo}type MemoView = Output {    text: Memo}action add_memo(input: AddMemo) -> MemoView {    return MemoView {        text: input.text    }}routes Memos {    prefix: /memos    POST / {        input: AddMemo        output: MemoView        status: SuccessStatus.no_content        run: add_memo(input)    }}

jadpo checkcheck failed: 1 error, 1 file

error POST /memos answers with no content

--> main.jadpo:26:9

   |26 |         output: MemoView   |         ^^^^^^^^^^^^^^^^ no body is sent

reason: SuccessStatus.no_content answers 204 with no body, so the route has no output: and what it runs returns Unit.
next: Remove output:, or choose another status (agent)
rule: route.output_unexpected
help: https://jadpo.dev/docs/errors/route.output_unexpected

Markdown for agents: /docs/errors/route.output_unexpected.md.Built from Jadpo main at aee2e8f.