Avoid including optional or provider-specific dependencies in the main dependency list. Dependencies should only be required if they are essential for core functionality that all users need. Make dependencies optional when they are: - Provider-specific (e.g., groq, mistralai, anthropic clients) - Feature-specific (e.g., mcp for specific Python versions) - Test-only requirements that not all developers need Use the `optional = true` flag and organize them into appropriate extras groups: ```toml [tool.poetry.dependencies] # Core dependencies only python = ">=3.9,<3.12" pydantic = "^2.0" # Optional dependencies groq = { version = "^0.4.2", optional = true } mistralai = { version = "^0.1.3", optional = true } [tool.poetry.extras] groq = ["groq"] mistral = ["mistralai"] ``` This approach prevents forcing unnecessary installations on users who don't need specific providers or features, while still making them available for those who do.