browser_take_screenshot doesn't return raw data when fullPage=True

[cuiyuebing]

Found that when fullPage=False, it saves files and there is raw image data returned in tool response, but when fullPage=True, it only saves files. How to obtain the raw image data in tool response when fullPage=True? Thanks for your help!

[pavelfeldman]

Yes, this behavior is by design. What's your scenario?

[cuiyuebing]

I see, thanks for clarifying. In my setup, the MCP server runs on a remote sandbox while my processing code runs locally. I need the image data for local processing, so when there's no raw data returned, I have to SSH into the remote sandbox to download the file each time. This creates a significant inefficiency in my workflow.

[lisan256]

I also need raw data because the same sence.

[bhy]

Shouldn't there be an option to allow agent explicitly state if image data is expected?

[igormf]

@pavelfeldman seems like the perfect excuse to implementing MCP resources? Full screenshot may be too big for a direct attach to response msg but we could return an URI so that the user/agent can download it directly instead of attaching it to the LLMs context window directly.

[pavelfeldman]

Could you share your use cases for running Playwright MCP remotely for me to understand them better?

(@igormf it does look like a good excuse to implement resources, but clients don't generally support resources and most of those that tried found them to actually confuse both users and LLM.)

[pavelfeldman]

Closing as non-actionable for now.