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Is the extension itself open source? Or only the extension-tools?
In theory I should be able to write a chrome extension for any website to expose my own custom tools on that site right (with some reverse engineering of their APIs I assume)?
Earlier quoted context omitted.
Similar but also very different. Playwright and Selenium are browser automation frameworks. There is a Playwright-MCP server which let's your agent use Playwright for browser automation. MCP-B is a different approach. Website owners create MCP servers `inside` their websites, and MCP-B clients are either injected by browser extensions or included in the websites JS. Instead of visual parsing like Playwright, you get…
What differentiates this from something like data-test-id attributes?
This is an interesting take since web developers could add mcp tools into their apps rather than having browser agents having to figure out how to perform actions manually. Is the extension itself open source? Or only the extension-tools? In theory I should be able to write a chrome extension for any website to expose my own custom tools on that site right (with some reverse engineering of their APIs I assume)?
The extension itself is a MCP server which can be connected to by other extension over cross extension messaging. Since the extension is part of the protocol, I'd like for the community to pull from the same important parts of the extension (MCPHub, content script) so they are consistent across extension implementations.
Would it be possible to do this with any arbitrary website since we can execute JS client side?
Yup! You just declare a standard MCP server and attach a TabServerTransport to it. Any TabClientTransport in the same Tab will be able to connect to it. The examples focus mostly on extensions injecting clients at website load time, but you can ship a client with your server javascript. That being said, if the client and server live in the the same script I recommend just using the InMemoryTransports from the officia…
MiguelsPizza | 3 commits | 89++ | 410--
claude | 2 commits | 31,799++ | 0--
--Shoutout to Go-Rod https://pkg.go.dev/github.com/go-rod/rod@v0.116.2#Page
This is an interesting take since web developers could add mcp tools into their apps rather than having browser agents having to figure out how to perform actions manually. Is the extension itself open source? Or only the extension-tools? In theory I should be able to write a chrome extension for any website to expose my own custom tools on that site right (with some reverse engineering of their APIs I assume)?