[Mobile] Floating button shortcut for slash commands (configurable per user)

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

In Claude Code mobile (iOS/Android), invoking a slash command requires:

1. Open the app
2. Tap the input field
3. Type the slash command character-by-character (no autocomplete on mobile keyboard)
4. Submit

This is friction-heavy for frequently-used personal slash commands (e.g., /morning, /trading, /<custom> skills). On the go (walking, in transit, quick check-in), users want a one-tap entry point instead of typing.

Mobile adoption of Claude Code is limited by interaction cost per session. Users with custom skills (e.g., personal automation via Claude Agent SDK) experience this most acutely — their power-user setup is less usable on mobile than desktop, the opposite of what mobile-first design promises.

Proposed Solution

A floating button (FAB / shortcut tile) in Claude Code mobile, configurable per user, that triggers a pre-set slash command in one tap.

UI sketch:

• Long-press on home screen → "Add Claude Code shortcut" → choose slash command name from user's installed skills
• OR: in-app settings → "Quick actions" → add up to N (e.g., 3-5) shortcut tiles to mobile home / app drawer / persistent FAB inside Claude Code

Behavior:

• Tap shortcut → opens Claude Code → auto-submits the configured slash command (no typing required)
• Optional: pre-fill arguments (e.g., /trading-bot research <ticker> where <ticker> is dynamic)

A floating button shortcut lowers the cost of a mobile session from ~10s to ~1s for frequent commands. For users running daily routines via Claude Code, this is the difference between "yeah I'll do it later" and "done."

Alternative Solutions

• iOS Shortcut + Claude API direct — works but requires technical setup, not approachable for non-devs, and bypasses Claude Code's session context / installed skills.
• Web app PWA install — improves access but still requires typing slash command after open.
• Quick reply chips in conversation list — closer but still requires opening Claude Code first.

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

1. Daily morning routine — /morning one-tap → briefing ready before user looks at screen
2. Trading check — /trading (auto-detect mode based on time/day) one-tap during a walk
3. Custom workflows — power users with 5-10 custom skills benefit dramatically (current friction kills mobile adoption for them)
4. Accessibility — users with motor difficulties (typing slash + name reliably is hard)

Additional Context

_No response_