[BUG] VS Code Extension has an incomplete slash command list compared to the CLI version

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The Claude Code VS Code extension (v2.0.1) displays a very limited and incomplete list of available slash commands when typing /. Many essential commands for configuration, management, and advanced features that are present in the native CLI application (v2.0.1) are missing from the extension's UI. This significantly limits the functionality and configurability of the extension, forcing users to switch back to the terminal for many core tasks.

What Should Happen?

The VS Code extension should have feature parity with the CLI application regarding available slash commands. Typing / in the extension's prompt should reveal a comprehensive list of commands, similar to the one available in the terminal version, allowing users to fully manage their Claude Code experience from within the IDE.

Error Messages/Logs

No error messages are displayed. This is a feature parity/missing feature issue.

Steps to Reproduce

1. Install the latest Claude Code VS Code extension from the VS Code Marketplace.
2. Open the Claude Code sidebar in VS Code by clicking the Spark icon.
3. In the chat input at the bottom of the sidebar, type /.
4. Observe the short list of available commands (e.g., /analyze, /clarify, /code-review, /compact, /constitution, /context, /implement, etc.).
5. Install or update to the latest native Claude Code CLI application (v2.0.1 or newer).
6. Run claude in an external or integrated terminal.
7. In the prompt, type /.
8. Observe the much longer, comprehensive list of commands available.
9. Compare the list from the VS Code extension to the list from the CLI and note the large discrepancy.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.1

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

The discrepancy makes it difficult to manage the agent's configuration, view status, or use advanced features directly from the VS Code UI. The documentation notes that some features are not yet implemented in the VS Code extension, and this issue highlights the impact of that gap.

Screenshots Analysis:

• The provided screenshots of the VS Code extension show a command list of approximately 15-20 commands.
• The provided text output from the CLI version shows a list of over 40 commands.

Key Missing Commands include (but are not limited to):

• /add-dir
• /agents
• /config
• /cost
• /doctor
• /export
• /hooks
• /ide
• /install-github-app
• /login, /logout
• /mcp
• /memory
• /model
• /permissions
• /rewind
• /status
• /statusline
• /terminal-setup
• /usage