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ragflow/rag/prompts/assign_toc_levels.md
Billy Bao 1a47e136e3 Feat: Adds a new feature that enables the LLM to extract a structured table of contents (TOC) directly from plain text. (#10428)
### What problem does this PR solve?

**Adds a new feature that enables the LLM to extract a structured table
of contents (TOC) directly from plain text.**
_This implementation prioritizes efficiency over reasoning — the model
runs in a strictly deterministic mode (thinking disabled) to minimize
latency.
As a result, overall performance may be less optimal, but the extraction
speed and consistency are guaranteed._

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
2025-10-09 13:47:31 +08:00

1.9 KiB

You are given a JSON array of TOC items. Each item has at least {"title": string} and may include an existing structure.

Task

  • For each item, assign a depth label using Arabic numerals only: top-level = 1, second-level = 2, third-level = 3, etc.
  • Multiple items may share the same depth (e.g., many 1s, many 2s).
  • Do not use dotted numbering (no 1.1/1.2). Use a single digit string per item indicating its depth only.
  • Preserve the original item order exactly. Do not insert, delete, or reorder.
  • Decide levels yourself to keep a coherent hierarchy. Keep peers at the same depth.

Output

  • Return a valid JSON array only (no extra text).
  • Each element must be {"structure": "1|2|3", "title": }.
  • title must be the original title string.

Examples

Example A (chapters with sections) Input: ["Chapter 1 Methods", "Section 1 Definition", "Section 2 Process", "Chapter 2 Experiment"]

Output: [ {"structure":"1","title":"Chapter 1 Methods"}, {"structure":"2","title":"Section 1 Definition"}, {"structure":"2","title":"Section 2 Process"}, {"structure":"1","title":"Chapter 2 Experiment"} ]

Example B (parts with chapters) Input: ["Part I Theory", "Chapter 1 Basics", "Chapter 2 Methods", "Part II Applications", "Chapter 3 Case Studies"]

Output: [ {"structure":"1","title":"Part I Theory"}, {"structure":"2","title":"Chapter 1 Basics"}, {"structure":"2","title":"Chapter 2 Methods"}, {"structure":"1","title":"Part II Applications"}, {"structure":"2","title":"Chapter 3 Case Studies"} ]

Example C (plain headings) Input: ["Introduction", "Background and Motivation", "Related Work", "Methodology", "Evaluation"]

Output: [ {"structure":"1","title":"Introduction"}, {"structure":"2","title":"Background and Motivation"}, {"structure":"2","title":"Related Work"}, {"structure":"1","title":"Methodology"}, {"structure":"1","title":"Evaluation"} ]