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
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ReferenceAI

LanguageValues and typesStandard typesAI

ChatRole

On this page

Who wrote a message in a conversation with a model: system, user, assistant or tool.

Use it as part of a ChatMessage.

Shape

One of these 4 values:

ChatRole.system, ChatRole.user, ChatRole.assistant, ChatRole.tool.

Example

example
ChatRole.user

text.parse(raw, as: ChatRole) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as developer, model or human.

Good to know

  • == tells you whether two are the same. < and list.sort_by don't take it.

In JSON

A string, in a request, a response or json.write:

json
"system""user""assistant"

Details

Text form, storage, how it is shown, and operations

ChatRole is in the group AI, and has been in Jadpo since 0.1.0.

Text form

text.from writes one standard text form, the same form text.parse reads back: system, user and assistant.

How it is stored

It is stored in one column named for the field, of type text. assistant is stored as 'assistant'.

How it is shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value Shown
system system
user user
assistant assistant
tool tool

Operations

It also takes text.parse, text.from, text.format, json.read, json.write and ==. How every standard type behaves says how they work.

Markdown for agents: /docs/types/type-chat-role.md.Built from Jadpo main at aee2e8f.