[FEATURE] Escape ! execution in slash commands

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

I want to write a meta slash command for creating other slash commands, and I want to instruct Claude like this:

````markdown

STEP 5: Generate command structure

CREATE command file with this structure:

---
argument-hint: [parameters]
description: Brief one-line description
---

## Context

- Relevant data: !`shell command`
- Arguments: $ARGUMENTS

````

When I run /create-slash-command, I get this error:

Error: Bash command failed for pattern "!shell command": [stderr] zsh: command not found: shell command

Proposed Solution

Implement a mechanism/keyword that allows users to escape ! in slash command definitions.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Configuration and settings

Use Case Example

_No response_

Additional Context

_No response_