Instructions and context

Three things put words in front of the model:

Component	Use it for
`<SystemPrompt>`	Who the agent is, once, at the top of `<Agent>`. It stays the same for the whole call
`<Instruction>`	What to do, such as “Ask for the policy number”
`<Text>` or plain JSX text	Facts the model reads, such as what the policy covers

Keep instructions and facts separate. Long documents go in context/ as Markdown, and a skill renders one with <Text src="policy/coverage-basics.md" />. The file reaches the model in full while its skill is loaded, so split documents by topic and put each in the skill that needs it.

Write several lines

Write a system prompt, instruction or text that runs over several lines as ONE template literal inside the component:

<Instruction>{`
  Collect the caller's details before you promise anything.

  ## Order
  - name
  - phone number
  - what happened
`}</Instruction>

Plain JSX text cannot carry that structure. The JSX transform joins JSX text onto one line before Curb ever sees it, so paragraphs, ## headings and - lists written as JSX text reach the model as one run-on sentence. curb check warns about it (AGENT_PROSE_JSX_TEXT) and shows the template-literal rewrite.

The compiler removes the indentation all lines share and the blank lines at the start and end, and keeps the rest: paragraphs, headings, lists, line breaks and ${...} values. That holds in <SystemPrompt>, <Instruction> and <Text>, inline <Skill> links included. Text that fits on one line, JSX or string, compiles exactly as before.

The model gets the system prompt as written. In its context each multi-line instruction or text stays one entry, with its continuation lines indented under it:

instruction: Collect the caller's details before you promise anything.

  ## Order
  - name
  - phone number
  - what happened

The preview shows the same text formatted, headings and lists included. Keep a block in one literal: a one-line text written next to it becomes a paragraph of its own.

Next steps

Voice: choose how the agent hears and speaks.