Skip to main content

​
Overview

The Folder Synthesis Block runs a prompt against every file in a Folder Block via map-reduce and outputs a combined result. The synthesis processes each file individually, then aggregates and synthesizes the results into a single output. This is fundamentally different from just dumping all files into a context window: it scales to large document collections and handles each file with full attention.

​
Key Features

  • Map-reduce processing — Each file is processed individually with its own dedicated context, then results are aggregated into a final synthesis
  • Scales to large collections — Works with document collections too large to fit in a single context window
  • Full attention per file — Each document gets dedicated processing, not diluted attention shared across all files
  • Combined output — Final synthesis aggregates and reconciles findings across all files into one coherent result

​
How to Use

  1. Create a Folder Block — Group your files into a Folder Block first
  2. Add a Folder Synthesis Block — Click on the canvas → Select “Folder Synthesis Block”
  3. Connect to folder — Link the Folder Synthesis Block to your Folder Block
  4. Write your prompt — Describe what you want to extract or analyze across the files
  5. Run — The block processes each file individually, then synthesizes results
  6. Connect downstream — Link the output to Memo, Document, Table, or Slides blocks for further refinement

​
Example Use Cases

  • “Summarize all my meeting notes” — Get a unified summary across dozens of meeting documents
  • “Extract action items across these 20 documents” — Pull out every action item from a collection
  • “Find all mentions of budget changes in this folder” — Search across a collection for specific topics
  • “Identify common themes across these research papers” — Cross-document theme extraction and pattern identification
  • Compliance checking — Check policy compliance across a folder of documents
  • Data extraction — Extract specific data points across receipt or invoice collections
  • Legal / compliance pass — Folder of policies → Folder Synthesis → checklist of obligations
  • Research consolidation — Many PDFs → Folder Synthesis → single structured memo