Slash commands don't autocomplete in Claude Code mobile app

Problem

In the Claude Code mobile app, typing / does not trigger autocomplete for custom slash commands. On desktop, typing / shows a dropdown of all available commands (both built-in and custom project commands from .claude/commands/). On mobile, nothing appears — you have to remember and type the full command name manually.

Reproduction

1. Open Claude Code mobile app
2. Connect to a project that has custom commands in .claude/commands/
3. Type / in the input field
4. Expected: Autocomplete dropdown showing available commands (e.g., /commit, /review-code, /dispatch-cursor, etc.)
5. Actual: No autocomplete. Nothing happens. Must type the full command name from memory.

Impact

This is a significant usability gap for mobile workflows. The whole point of slash commands is quick access — having to remember 100+ command names and type them manually on a phone keyboard makes mobile usage impractical for power users.

Custom commands are a major feature of Claude Code. Projects like ours have 145+ commands organized by workflow phase. On desktop, the autocomplete makes this manageable. On mobile, it's unusable without a cheat sheet open in another app.

Expected Behavior

• Typing / should show an autocomplete/picker with all available commands
• Should include both built-in commands and custom project commands from .claude/commands/
• Ideally searchable/filterable (same as desktop behavior)

Environment

• Claude Code mobile app (iOS)
• Projects with extensive custom command systems (.claude/commands/*.md)