Which feature can provide guidance on permissions for specific actions in IAM?

The Policy Analyzer is the correct choice because it serves as a tool designed to help administrators understand and evaluate IAM policies regarding permissions and roles. It analyzes existing policies and provides insights about the permissions granted for specific actions, allowing organizations to ensure that their access controls are appropriate, secure, and in compliance with their desired security posture.

By using the Policy Analyzer, users can identify potential misconfigurations or overly permissive policies, enabling them to refine access rights and enhance security measures effectively. Its ability to visualize and interpret complex IAM policies makes it an essential feature for managing and optimizing permissions in Google Cloud.

In contrast, IAM policy binding is a method of attaching specific roles to users or service accounts but does not provide guidance on the implications of those permissions. The Service Account Manager is focused on managing service accounts and their keys rather than analyzing permissions. Access Context Manager is used to define access levels for resources based on attributes like user identity, device, and location, but it does not analyze existing IAM policies directly. Therefore, the Policy Analyzer is uniquely positioned to provide targeted guidance on permissions for specific actions within the IAM framework.