By name: s3-management description: Manage AWS S3 buckets and objects via MCP. Use when asked to browse, upload, download, or share S3 files.
AWS S3 Management via MCP
Use this skill when you need to manage S3 buckets, browse objects, upload/download files, or generate presigned URLs.
Available Tools
| Tool | What it does |
|---|---|
list_buckets |
List all S3 buckets in the AWS account |
list_objects |
List objects in a bucket with optional prefix filter |
get_object |
Download and read an object's content as text |
put_object |
Upload text content to an S3 object |
delete_object |
Delete an object from a bucket |
presigned_url |
Generate a temporary presigned URL for an object |
bucket_info |
Check if a bucket exists and get basic info |
Workflow
- Start with
list_bucketsto discover available buckets - Use
list_objectswith a prefix to browse directories within a bucket get_objectreads text content — for binary files, usepresigned_urlinsteadpresigned_urlgenerates a temporary shareable link (default 1 hour expiry)
Key Patterns
list_objectsuses prefix-based filtering (S3 doesn't have real directories):prefix: "uploads/2026/"get_objectreturns text content only — it won't work for images, binaries, or large filesput_objecttakes string content — use it for config files, JSON, text, not binary uploadspresigned_urlis the right tool for sharing files or accessing binary content
Safety
- Always confirm before
delete_object— S3 deletions are permanent (unless versioning is enabled) - Always confirm before
put_objectto an existing key — it overwrites without warning - Presigned URLs grant temporary access to anyone with the link — warn users about this