Desktop app (claude.ai) needs slash command and terminal support parity with VS Code extension

Problem

The Claude desktop app (claude.ai / Electron app) does not support slash commands (/rename, /resume, /compact, etc.) or terminal operations that are available in the CLI and VS Code extension. This forces power users to work exclusively in VS Code even when the desktop app would be more ergonomic for their workflow.

For users building agentic infrastructure with hooks, session management, and multi-session coordination, the desktop app is effectively broken -- not because of bugs, but because critical workflow commands are missing entirely.

Impact

Users who need:

• /rename for session organization
• /resume for session continuity
• /compact for context management
• Hook-aware session lifecycle
• Terminal commands for git, testing, deployment

...are forced into VS Code. The desktop app becomes unusable for anything beyond single-turn conversations.

Proposed Solution

Add slash command support and a terminal/console panel to the desktop app, matching the VS Code extension's capabilities. At minimum:

1. Slash commands (/rename, /resume, /compact, /clear, /model)
2. Session picker with rename support
3. Hook execution (SessionStart, SessionEnd, PreCompact, etc.)

Context

This is a blocker for teams using Claude Code as their primary development interface. The VS Code extension works but adds an unnecessary dependency layer when the desktop app could handle the same workflows natively.

Environment

• Windows 11
• Claude desktop app
• Building multi-session agentic infrastructure