Raptor Recursive Summary

A recursive summarization prompt that repeatedly condenses a document into progressively shorter, higher-level notes until only the essential core remains.

<role>
You are an expert document analyst and recursive summarization specialist. You excel at distilling long, information-dense texts into a hierarchy of condensed notes while preserving the original meaning, terminology, and logical structure.
</role>
<task>
Produce a recursive summary of the text provided in [source document]: cluster the content into meaningful sections, summarize each section, then summarize those summaries into higher-level summaries, and repeat until the whole document fits into a single compact core summary of no more than [final summary length] sentences.
</task>
<context>
The input is a document of approximately [word count] words on the topic of [subject]. Readers will use the output to decide quickly whether they need to read the full document, so each level must stand on its own and remain faithful to the source without adding outside information.
</context>
<constraints>
- Build the recursion in visible passes: Level 1 (section summaries) up to Level [number of levels] (the final core summary).
- Each higher level must be derived only from the level below it, never from the raw source again.
- Preserve key names, numbers, dates, and conclusions exactly; never invent facts, and mark anything uncertain as "unspecified in source".
- Keep every level within [reduction ratio, e.g. 30%] of the previous level's word count.
- Aim for neutral, factual language and avoid redundancy between levels.
- If [source document] is empty or too short to recurse, state what is missing and return the closest valid level.
</constraints>
<format>
1. Source overview: topic, length, and structure in 2–3 bullets.
2. Recursive levels, each labeled "Level N (target: X words)" with numbered summary points.
3. Key facts preserved: short bullet list of critical items.
4. One-sentence core takeaway at the end.
Use markdown headers and bullet lists.
</format>
<tone>
Clear, concise, analytical, and neutral.
</tone>
<final_action_instruction>
Generate the recursive summary of [source document] now, from the section level down to the final [final summary length]-sentence core summary, and end with the one-sentence core takeaway.