Anthropic Cookbook: legal document summarizer with guided sections and prefilled output

From the cookbook's summarization guide. A focused prompt for sublease/legal-agreement summarization that uses a system role, explicit section headers, an XML output format, prefilled <summary>, and a </summary> stop sequence - a complete pattern for structured-summary pipelines.

1. Parties involved (sublessor, sublessee, original lessor)
2. Property details (address, description, permitted use)
3. Term and rent (start date, end date, monthly rent, security deposit)
4. Responsibilities (utilities, maintenance, repairs)
5. Consent and notices (landlord's consent, notice requirements)
6. Special provisions (furniture, parking, subletting restrictions)

Provide the summary in bullet points nested within the XML header for each section. For example:

If any information is not explicitly stated in the document, note it as "Not specified". Do not preamble.

Sublease agreement text: {text}

</user>

Assistant prefill: `Here is the summary of the sublease agreement: <summary>` (stop sequence: `</summary>`)

Source: https://github.com/anthropics/anthropic-cookbook/blob/main/capabilities/summarization/guide.ipynb