### The Core Commands
* `/review` 
    Asks Gemini to read the entire PR diff and provide a structured summary, score the PR, identify potential bugs, and suggest high-level fixes.
* `/describe` 
    Automatically rewrites the PR's title and description based on the actual code changes. (Great for when you just want to push code and not write documentation).
* `/improve` 
    Scans the code and provides actionable, copy-pasteable snippets to improve the code, focusing on performance, security, and best practices.
* `/ask "<your question>"` 
    Turns the PR comment section into a chat window. It uses the PR diff as context. Example: `/ask "Did I properly handle the null pointer edge cases in the new database function?"`

### Specialized Tools
* `/test` 
    Asks the AI to generate unit tests specifically tailored for the new or modified code in the PR.
* `/update_changelog` 
    Automatically drafts an update for your `CHANGELOG.md` file based on the PR's contents.
* `/generate_labels` 
    Analyzes the code changes and recommends appropriate labels for the PR (e.g., `bug`, `enhancement`, `refactor`).
* `/help` 
    Forces the bot to reply with a quick cheat sheet of all available commands and usage instructions in case you forget them.

### Pro-Tip: Steering the AI
You can actually pass arguments directly to the commands to give Gemini specific instructions for that specific run. 

For example, if you want a review but want it to be hyper-paranoid about security, you can type:
`/review --pr_reviewer.extra_instructions="Focus heavily on potential security vulnerabilities and SQL injection risks."`