The Parameters page is your primary reference when writing policies.

It documents:

• ✅ Supported resources
• ✅ Supported operations for each resource
• ✅ The exact input fields available during policy evaluation
• ✅ Data types and example values

You should always refer to this page to:

• Know which fields you can safely use in your policy
• Avoid referencing unsupported or unavailable data
• Write policies that behave predictably in production