---
id: 8491
title: Add file size measurement to ChromaDB defragmentation tool
state: CLOSED
labels:
  - enhancement
  - ai
  - build
assignees:
  - tobiu
createdAt: '2026-01-10T01:03:23Z'
updatedAt: '2026-01-10T01:05:07Z'
githubUrl: 'https://github.com/neomjs/neo/issues/8491'
author: tobiu
commentsCount: 1
parentIssue: null
subIssues: []
subIssuesCompleted: 0
subIssuesTotal: 0
blockedBy: []
blocking: []
closedAt: '2026-01-10T01:05:07Z'
---
# Add file size measurement to ChromaDB defragmentation tool

**Goal**:
Provide immediate feedback on the efficacy of the defragmentation process by measuring and logging the reduction in database size.

**Requirements**:
1. Implement a recursive directory size calculation utility within `buildScripts/defragChromaDB.mjs`.
2. Measure the total size of the target database folder *before* the operation starts (after validation).
3. Measure the total size *after* the operation completes.
4. Calculate and log:
    - Initial size (MB)
    - Final size (MB)
    - Reduction (MB and %)

**Why**:
To quantify the value of the "Nuke and Pave" strategy and give users confidence that the tool is working.

## Timeline

- 2026-01-10T01:03:23Z @tobiu added the `enhancement` label
- 2026-01-10T01:03:24Z @tobiu added the `ai` label
- 2026-01-10T01:03:24Z @tobiu added the `build` label
- 2026-01-10T01:04:41Z @tobiu referenced in commit `26153b6` - "feat: Add file size measurement to ChromaDB defragmentation tool (#8491)"
- 2026-01-10T01:04:46Z @tobiu assigned to @tobiu
### @tobiu - 2026-01-10T01:04:54Z

**Input from Gemini 3 Pro:**

> ✦ I have implemented the file size measurement logic.
> - Moved `getDirSize` to a top-level function.
> - Implemented initial size measurement before backup.
> - Implemented final size measurement and reporting at the end of the script.
> 
> The script now logs:
> - Initial Size (MB)
> - Final Size (MB)
> - Reduction (MB and %)
> 
> This provides the requested feedback on the defragmentation process.

- 2026-01-10T01:05:07Z @tobiu closed this issue

