Cowork Context Management Kit Solves Claude's File Overload Problem

Problem: Claude Reading Every File

A consulting firm developer using Cowork with Claude AI encountered performance issues when working with a project folder containing 462 files. Claude would stall, contradict earlier work, pull from outdated documents, and reference superseded content. The root cause: Claude was reading every file in the folder at the start of each session, filling half the context window with irrelevant information before processing the actual question.

Solution: Three-Part Context Management Kit

The developer borrowed from enterprise storage concepts (near-line tiering) and created:

• Global instructions to paste into Cowork settings. These tell Claude to first look for a manifest file, read canonical documents, and only load other files when the task specifically requires them.
• A manifest template (_MANIFEST.md) to drop into folders. This simple markdown file tags files as:
  • Tier 1: Source of truth documents
  • Tier 2: Load on demand
  • Tier 3: Ignore unless specifically asked
• A Cowork skill that maintains consistency across sessions

Implementation and Results

Setup takes about 10 minutes. The developer reports immediate improvement in performance after implementation. The kit is MIT licensed and available on GitHub at https://github.com/hughtopian-gif/cowork-context-kit.

This approach addresses a common issue where AI coding assistants waste context window space on irrelevant files, particularly in large projects with accumulated documentation over time.