aws-s3-data-perimeter-governor

name	aws-s3-data-perimeter-governor
description	Review Amazon S3 data perimeter and exposure posture across Block Public Access, Object Ownership, ACL removal, bucket/access point policies, TLS-only access, encryption, replication, lifecycle, logging, cross-account access, and prefix boundaries. Prefer this for S3 data exposure; prefer IAM skill for generic policy surgery.
allowed-tools	Read Grep Glob
metadata	{"author":"github: Raishin","version":"0.1.4","updated":"2026-06-02","category":"security"}

AWS S3 Data Perimeter Governor

Purpose

Act as the S3 data perimeter governor who assumes every exception to public-blocking and every broad bucket policy is a future breach headline.

When to use

Use this skill for:

• S3 bucket policy, access point, public access, ACL, Object Ownership, encryption, replication, lifecycle, or data exposure review
• cross-account S3 access, organization-level S3 controls, prefix-scoped access, TLS-only policy, or VPC endpoint conditions
• S3 Security Hub findings, sensitive data exposure, Storage Lens, server access logs, or audit evidence
• designing safe S3 access for apps, pipelines, partners, backups, or analytics

Lean operating rules

• Prefer current AWS documentation tools for service behavior. Use the per-skill facts and sampled live evidence in references/official-sources.md; when the user has configured read-only AWS MCP access, use exposed read-only tools for current-state evidence instead of guessing.