Yocoolab: Visual Feedback & Bug Reports for AI Coding Agents icon

Yocoolab: Visual Feedback & Bug Reports for AI Coding Agents

by Attunellc · attunellc.ai · Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Annotate any website: pin feedback with a screenshot and the exact element, then send it to Claude Code, Cursor or any MCP agent.

Users
25
−3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#139K
#116K among extensions
Version
1.9.206
updated 15 Oct 2026

Users

monthly, 7 months
01326Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 25 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months
012Mar 2026Jul 2026Oct 2026
Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Yocoolab: Visual Feedback & Bug Reports for AI Coding Agents

Yocoolab is visual feedback for websites and the AI coding agents that build them. Click any element on a live page and leave a comment. Yocoolab pins it to that element with a screenshot and the element's details, your team talks it through in a thread, and Send to Agent hands it to Claude Code, Cursor or another MCP coding agent to make the change. Free for your whole team while in beta. No seat fees, and no caps on projects, pages or teammates. WHAT IT DOES • Annotate any website: pin a comment to the exact button, heading or section you mean. • Bug reports with a screenshot, every time: each pin captures a screenshot of the visible page plus the element's CSS selector, DOM path, attributes, computed styles, framework hints (React, Vue, Svelte), page URL, title and viewport size. • Works on any live site: localhost, staging, preview deploys and production. • Team threads: reply, @mention teammates, and see who else is on the page with live cursors. • One board for all of it: every comment lands on your project's board in the Yocoolab dashboard. WHO IT'S FOR • Developers building with Claude Code, Cursor, Windsurf, Cline or Roo Code who want to show the agent the exact element. • Designers and product managers who want to review the real product, not a mockup. • Teams collecting website feedback from colleagues and clients on staging before launch. HOW IT WORKS 1. Install the extension and sign in with Google, GitHub, or email and password. Create a project and add the site you're reviewing. No repository connection is needed. 2. Open the page and click the Yocoolab icon (or press Ctrl+Shift+Y, Cmd+Shift+Y on Mac, or right-click and choose Comment with Yocoolab). Click an element and write your comment. 3. Discuss it with your team, or click Send to Agent. Your agent reads the comment, screenshot and element context, finds the matching code in your repository, makes the change and opens a pull request. It records the PR on the thread and moves it to In Review, and a person on your team resolves it. WORKS WITH YOUR CODING AGENT Yocoolab talks to coding agents through its open-source MCP server, @yocoolab/mcp-server (Apache-2.0). Copy the one-line setup command from the extension's settings and run it in your terminal. Setup detects Claude Code, Cursor, Windsurf, Cline and Roo Code; any other MCP client works with a manual MCP config. Your agent can list open threads, read a thread's full context, look up the element you selected, reply on the thread and mark it ready for review. Send to Agent shows up when a connected agent is detected. Workspace owners and admins can use it by default and can turn it on for others. PRIVACY • Yocoolab runs on a tab when you open it from the toolbar or the right-click menu. If you choose to keep it on for a site, the browser asks for permission for that site. • On pages where it is on, Yocoolab sends the page address to our servers to find the matching project. • When you pin a comment, it sends the screenshot, the element details (including a short piece of the element's text) and the page URL and title, so your team can see them. • While the panel is open on a shared project, teammates on the same page see your cursor and typing status live. • We do not sell your data. Privacy policy: https://yocoolab.com/privacy FREE IN BETA Yocoolab is free for your whole team during the beta, with no limits on projects, pages or teammates. Also available for Microsoft Edge and Firefox.

Growth

WindowUsersChangeRatingsRating
7 days−1−3.8%00.00
30 days−3−10.7%00.00
6 months+21+525.0%+2+5.00

Version history

40 versions recorded
1.9.20615 Oct 2026
1.9.20512 Oct 2026
1.9.2048 Oct 2026
1.9.2036 Oct 2026
1.9.2024 Oct 2026
1.9.2013 Oct 2026
1.9.2001 Oct 2026
1.9.19929 Sep 2026

Details

Category
Developer Tools
First seen
15 Mar 2026
Size
2.6 MB
Languages
en
Pricing
Free
Privacy policy
yocoolab.com
Support
yocoolab.com
Extension ID
kidpbehkjihfegmjeneacdicganoogle

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storageactiveTabtabsscriptingnotificationsalarmscontextMenus

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