Ask-User-Question needs some love on mobile

[fgrehm]

Summary

I got my agent to use the Ask User Question tool / thingy on a chat from my phone and could not read the question / answers to properly answer, tried to turn the phone around read it but then the virtual keyboard took a lot of space on the screen and I could not read things anymore to provide an answer.

Versions and environment

• bb 0.40.0 through npx
• brave browser, iPhone
• pi 0.84.2

Steps to reproduce

Kinda hard to predict how agents will react to freeform chat but:

1. open the web app from a small screen, ideally a real phone with the virtual keyboard
2. get the agent to trigger the Ask-User-Question flow with multiple questions with lots of text in them

Expected vs actual

I only have the vertical screenshot to share, happy to provide more info as needed.

Evidence

No response

What you ruled out

No response

Suggested priority and effort (optional)

Maybe medium?

Checks

• I reproduced this on the latest release or on main, or I say above that I could not.
• I searched open and closed issues for the same problem.
• If an agent wrote this, the body ends with > AGENT GENERATED and links the thread or report.

[SawyerHood]

Reproduction & root-cause report: https://get-bb.github.io/reports/issues/2537.html

• Verdict: REPRODUCED · root-cause confidence: high
• Root cause (short): The plugin uses a fixed viewport height and intrinsic host widths, so the sticky footer clips its top and right edges.
• Proposed fix: Make the host measure and constrain each plugin card. Add min-w-0 to the grid child. Use display: contents for the host fieldset.
• Caveats: I used Chrome mobile emulation and Cursor. I did not use a real iPhone, Brave, its software keyboard, or Pi 0.84.2.

The report has copy-paste repro steps, screenshots where the bug is visual, code permalinks at the base commit, and repro artifacts. It was independently re-run by a second agent (see its Verification section).

AGENT GENERATED: by GPT-5.6-Sol