Conversation titles are overwritten by auto-generated titles in Claude iOS app when using /mobile

Description

When using Claude Code's /mobile feature to control sessions from the Claude iOS app, manually renamed conversation titles revert to auto-generated ones based on conversation content after a short period.

Environment

• Claude Code version: 2.1.84
• Platform: iOS (Claude app)
• Feature: /mobile (Remote Control)

Steps to Reproduce

1. Start a Claude Code session and use /mobile to connect from the Claude iOS app
2. Rename the conversation thread in the iOS app to a custom title
3. Continue using the session or wait some time
4. The title reverts to an auto-generated one based on conversation content

Expected Behavior

Manually set conversation titles should persist and not be overwritten by auto-generated titles.

Actual Behavior

Custom titles are overwritten by auto-generated titles after some time, making it difficult to organize and find sessions.

Notes

• This occurs even after the fix in #23610 (which addressed /rename + /resume overwrite)
• The auto-rename appears to be triggered server-side by the Claude iOS app, not by Claude Code itself
• There is currently no setting to disable auto-title generation

Request

• Add an option to lock/pin conversation titles, or
• At minimum, respect manually set titles and don't auto-overwrite them