# 72.6 GB across Codex, Claude, and Cursor, and the fix that keeps every conversation

> Source: <https://mint.dzgapp.com/build-journey/agents-are-not-a-black-box/>
> Published: 2026-08-20 12:00:00+00:00

# Your Coding Agent Is Eating Your Disk

Codex, Claude, and Cursor were holding 72.6 GB on one Mac. We measured why coding agents eat disk space — 77% images, 39% duplicates — and how to reclaim it without deleting a single conversation.

## How this was measured

Measured with Mint’s own read-only scan hooks on one developer Mac in August 2026. Session files were streamed with pread into a single reused buffer, so reading a 14 GB conversation grew the process by tens of megabytes; resident memory was sampled while it ran and is part of the record. Duplicate screenshots were found by hashing every embedded image; “archive frees nothing” was checked by reading free space before and after the archive step. The scans run entirely on device and you can reproduce them on yours.
