What does the /reduce command do in Claude Code?

The /reduce command triggers a deep extraction process that analyzes a file or input to identify insights, reasoning, and patterns, saving them as atomic markdown files in your knowledge vault.

What happens if I process a very large file?

Reduce features a large source handling protocol. If a file exceeds 2500 lines, it automatically plans and processes the content in smaller chunks (350-1200 lines) to maintain accuracy.

Can I customize how it names folders and notes?

Yes, it reads from an 'ops/derivation-manifest.md' file to map vocabulary, allowing you to define custom folder names for your inbox, notes, and specific extraction categories.

How does Reduce differ from a standard AI summary?

Unlike summaries which condense information, Reduce focuses on 'articulated reasoning.' it extracts the specific logic and evidence behind claims so they can be reused and linked in a personal knowledge system.

What is the 'Comprehensive Extraction' principle?

It is a mandate that for any domain-relevant source, the skip rate must be below 10%. This ensures that even 'obvious' or 'validating' information is captured to provide a complete reasoning path.

Reduce Knowledge Extractor

Name: Reduce Knowledge Extractor
Author: agenticnotetaking

byagenticnotetaking

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2,813

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콘텐츠 관리

Extracts structured insights and atomic reasoning from source material to build comprehensive personal knowledge systems.

Reduce is a specialized extraction engine for Claude Code that transforms raw text into a structured graph of atomic propositions. Unlike standard summarizers that prioritize brevity, Reduce follows a 'Comprehensive Extraction' principle, ensuring that reasoning, evidence, patterns, and tensions are externalized into traversable markdown notes. It is a core component of the arscontexta ecosystem, designed to minimize data loss by maintaining a skip rate of less than 10% for domain-relevant material, effectively turning conversations and documents into a permanent second brain.

주요 기능

01Categorizes insights into distinct types including patterns, anti-patterns, tensions, and implementation ideas.

02Configurable processing depth and vocabulary mapping via local manifest files.

03Comprehensive extraction of core claims, evidence, and validations with minimal skip rates.

042,813 GitHub stars

05Native vector search integration to perform duplicate checks and suggest content enrichments.

06Intelligent large-source handling with automated chunking for documents over 2500 lines.

사용 사례

01Mining conversation transcripts to populate a project-specific knowledge vault.

02Converting technical documentation or research papers into atomic, linkable markdown notes.

03Externalizing the underlying 'why' behind architectural decisions in a codebase.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add agenticnotetaking/arscontexta reduce

For use in Claude.ai and ChatGPT

Download Skill