[DOCS] Remote Control docs omit `/update` behavior when workspace trust is pending

Documentation Type

Missing documentation (feature not documented)

Documentation Location

https://code.claude.com/docs/en/remote-control
https://code.claude.com/docs/en/commands
https://code.claude.com/docs/en/troubleshoot-install

Section/Topic

Remote Control command support and startup trust behavior for /update.

Current Documentation

The Remote Control docs tell users to run claude locally first to accept the workspace trust dialog:

Run claude locally first and accept the trust dialog for the workspace.

Local evidence: docs/code.claude.com/docs/en/remote-control.md:35

The Remote Control docs list which commands work from mobile and web, but do not mention /update.

Local evidence: docs/code.claude.com/docs/en/remote-control.md:201-204

The commands reference lists /upgrade, but not /update.

What's Wrong or Missing?

Claude Code v2.1.187 fixed /update over Remote Control hanging when a startup trust dialog would have shown.

The current docs do not explain whether /update is supported from Remote Control or what users should expect if workspace trust has not yet been accepted. The only related guidance is to accept trust locally before using Remote Control.

Suggested Improvement

Document whether /update is supported from Remote Control and describe the behavior when workspace trust has not been accepted. For example:

/update can be run from Remote Control. If the workspace still needs the startup trust prompt, Claude Code reports that trust must be accepted instead of hanging. Run claude locally in the workspace and accept the trust dialog, then retry /update from Remote Control.

Also add /update to the relevant command reference if it is a supported command.

Impact

Medium - Makes feature difficult to understand

Additional Context

v2.1.187 changelog context: Fixed /update over Remote Control hanging when a startup trust dialog would have shown.

Duplicate search found no exact duplicate for /update plus Remote Control plus trust dialog/startup trust. Closest related issue #51376 covers mid-session /update behavior in worktree docs, not this Remote Control trust case.