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Sidebar Agent

Chrome extension by 牛牛 · Productivity · Tools

A Chrome extension in Productivity · Tools with 1 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
1 (the store no longer states an audience; this is the last figure it published)
Rating
not rated yet
Users, last 5 days
+1
Version
0.1.0
Updated in the store
2026-09-10
Published
2026-09-10
Manifest
V3
Browser access
7 permissions, 5 site patterns

How it has moved

Users
+1 since 11.09
0-1 · 3 readings
2026-09-11: appeared in the store
  1. 2026-09-110appeared in the store
  2. 2026-09-131
  3. 2026-09-151
Users
+1 since 11.09
0-1 · 3 readings
2026-09-11: appeared in the store
  1. 2026-09-110appeared in the store
  2. 2026-09-131
  3. 2026-09-151

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 4
  • Run work in a hidden page offscreen
  • Open a panel beside the page sidePanel
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

What changed recently

  1. Appeared in the store

The publisher

牛牛 publishes 4 listings we track, 192 users between them.

  1. Geminavi Sidebar Agent 牛牛 · Productivity · Tools · published 2025-04-21 153 users
  2. NicoNico Multi-Tool 牛牛 · Productivity · Tools · published 2026-06-09 21 users
  3. Open JTalk TTS 牛牛 · Productivity · Tools · published 2026-02-12 17 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. ChatGPT Side Panel Describes nearly the same job, smaller audience 9 users
  2. ChatGPT Side Panel — by chromie.dev Describes nearly the same job, smaller audience 4 users
  3. ChatGPT Side Panel Describes nearly the same job, smaller audience 49 users
  4. Chat GPT Side Bar MeaVana Describes nearly the same job, smaller audience 1k users ★ 4.6
  5. AI Side Hub Describes nearly the same job, smaller audience 6 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.