Prompt API Tooling Responses

Cameron McCoy

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Oct 31, 2025, 8:08:51 PMOct 31

to Chrome Built-in AI Early Preview Program Discussions

Seeing the JSON RPC but no execution? I copied the tooling code from github after integrating Nano independently. Is this the expected behavior?

Cameron

Screenshot 2025-10-31 at 3.05.19 PM.png

Cameron McCoy

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Oct 31, 2025, 8:09:54 PMOct 31

to Chrome Built-in AI Early Preview Program Discussions, Cameron McCoy

** Corrected Screenshot

Screenshot 2025-10-31 at 5.03.42 PM.png

Thomas Steiner

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Oct 31, 2025, 8:18:52 PMOct 31

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Hi Cameron,

While tool use is specified, it's not in a testable way implemented yet, so the tool is just silently ignored. This is why the docs on developer.chrome.com don't mention it yet.

Cheers,

Tom

Thomas Steiner, PhD—Developer Relations Engineer (blog.tomayac.com, toot.cafe/@tomayac)

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