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: AI

AI · rule

prompt.placeholder_unused

A prompt's field is written nowhere in its text.

Area 21, AI; not declinable; the next step is usually the agent's.

Every field of a prompt is written in its text, so a model is sent only what a reviewer reads in the file.

example
/// Answers a customer's question.type AnswerQuestion = Prompt {    question: Text    reader_locale: Locale    order_reference: Text}
text
error: `AnswerQuestion.order_reference` is written nowhere in `answer_question.prompt` --> domains/support/prompts/answer_question.jadpo:5:5  |5 |     order_reference: Text  |     ^^^^^^^^^^^^^^^ never written  reason: Each field of a prompt is a placeholder its text writes, so a model is sent only what a reviewer reads in `answer_question.prompt`.  next: Write `{order_reference}` in `answer_question.prompt`, or remove the field (agent)  rule: prompt.placeholder_unused  help: https://jadpo.dev/docs/errors/prompt.placeholder_unusedcheck failed: 1 error, 2 files

Markdown for agents: /docs/errors/prompt.placeholder_unused.md.Built from Jadpo main at a707efb.