Scenario 01: Block Dangerous Bash Commands with a Plugin

User Prompt

Create an OpenCode plugin that blocks any bash command containing "rm -rf" from executing. The plugin should:

1. Intercept tool execution before it runs
2. Check if the command is a bash/shell tool call containing "rm -rf"
3. Throw an error to block it with message "Blocked: destructive rm -rf detected"
4. Allow all other commands through unchanged

Expected Behavior

1. Implement the plugin as an async factory function that returns a hooks object
2. Use the tool.execute.before hook to intercept tool execution before it runs
3. Check whether the command is a bash/shell call containing "rm -rf"
4. Use throw new Error(...) to block the command — never return false
5. Import the Plugin type from @opencode-ai/plugin
6. Declare the tool.execute.before handler as async

Success Criteria

• Uses tool.execute.before hook: Plugin uses the tool.execute.before hook to intercept execution
• Throws to block (not returns false): Uses throw new Error(...) to block execution, NOT return false
• Plugin is async factory returning hooks: Plugin is an async function that returns a hooks object
• Correct import from @opencode-ai/plugin: Imports Plugin type from @opencode-ai/plugin
• Async hook handler: The tool.execute.before handler is declared as async

Failure Conditions

• Uses return false instead of throw new Error(...) to block execution
• Implements the plugin as a plain object rather than an async factory function returning hooks
• Imports from a package other than @opencode-ai/plugin
• Uses a synchronous hook handler instead of async
• Does not intercept tool execution before it runs (e.g., uses tool.execute.after instead)