Merge pull request #186 from github/contrib-guidelines

Update CONTRIBUTING.md

Author: localden

CONTRIBUTING.md

@@ -11,10 +11,13 @@ These are one time installations required to be able to test your changes locall
 1. Install [Python 3.11+](https://www.python.org/downloads/)
 1. Install [uv](https://docs.astral.sh/uv/) for package management
 1. Install [Git](https://git-scm.com/downloads)
-1. Have an AI coding agent available: [Claude Code](https://www.anthropic.com/claude-code), [GitHub Copilot](https://code.visualstudio.com/), or [Gemini CLI](https://github.com/google-gemini/gemini-cli)
+1. Have an AI coding agent available: [Claude Code](https://www.anthropic.com/claude-code), [GitHub Copilot](https://code.visualstudio.com/), or [Gemini CLI](https://github.com/google-gemini/gemini-cli) are recommended, but we're working on adding support for other agents as well.
 
 ## Submitting a pull request
 
+>[!NOTE]
+>If your pull request introduces a large change that materially impacts the work of the CLI or the rest of the repository (e.g., you're introducing new templates, arguments, or otherwise major changes), make sure that it was **discussed and agreed upon** by the project maintainers. Pull requests with large changes that did not have a prior conversation and agreement will be closed.
+
 1. Fork and clone the repository
 1. Configure and install the dependencies: `uv sync`
 1. Make sure the CLI works on your machine: `uv run specify --help`