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

A developer Mac running Codex, Claude, and Cursor was found to hold 72.6 GB of session data, with images accounting for 77% and duplicates for 39% of the storage. Mint's read-only scan hooks measured the usage in August 2026, revealing that coding agents consume significant disk space, and the company says the fix reclaims space without deleting conversations.

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.