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AWS S3 MCP Server

AWS S3 MCP Server is a skill for Claude Code from skillmds/skillmd. It costs 5 tokens per session (222 once invoked), scanned A, original, MIT.

A server integration for AWS S3, Amazon's cloud service for storing files and other objects. The supplied material lists Node.js and npm prerequisites but no verified usage instructions.

In plain words
What is it for?
Use it to check the upstream AWS SDK documentation before working with S3 from a Node.js project.
Why use it?
It can provide a starting point for reviewing the integration, while avoiding assumptions about operations it supports.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cloud-devops plugin — 23 skills shipped together

not rated 143repo +49 4d ago A scan 5 tokens original MIT

Good fit Use it to check the upstream AWS SDK documentation before working with S3 from a Node.js project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/skillmds/skillmd/aws-s3-mcp-server
View source ↗ skillmds/skillmd skillmd.com
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add skillmds/skillmd --skill aws-s3-mcp-server
Clone the repo
git clone --depth 1 https://github.com/skillmds/skillmd

Made for: Claude Code.

Or install cloud-devops, the plugin that ships this one along with the rest of its 23 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for AWS S3 MCP Server

README.md
[![agentmods](https://agentmods.dev/badge/skills/skillmds/skillmd/aws-s3-mcp-server/github.svg)](https://agentmods.dev/skills/skillmds/skillmd/aws-s3-mcp-server)
Your own site
<a href="https://agentmods.dev/skills/skillmds/skillmd/aws-s3-mcp-server"><img src="https://agentmods.dev/badge/skills/skillmds/skillmd/aws-s3-mcp-server/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for AWS S3 MCP Server

Your own site · 80×15
<a href="https://agentmods.dev/skills/skillmds/skillmd/aws-s3-mcp-server"><img src="https://agentmods.dev/badge/skills/skillmds/skillmd/aws-s3-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 222 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00005 $0.00222
Opus 5.5 $0.00002 $0.00089
Sonnet 5.5 $0.00001 $0.00044
Haiku 4.5 $0.00001 $0.00022

Measured 1mo ago against content hash 99104164d2c1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

AWS S3 MCP Server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

plugins/cloud-devops/skills/aws-s3-mcp-server/SKILL.md · 39 lines

What it actually says

AWS S3 MCP Server

Prerequisites

Node.js, npm

Installation

No source-backed install or usage instructions could be extracted automatically. Review the upstream project before running this skill in a sensitive workflow.

Documentation

Source

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 39 lines · 5 tokens per session scan A 99104164d2c1

Subscribe to this mod's changes

AWS S3 MCP Server is a skill published in the GitHub repository skillmds/skillmd (143 stars, last pushed 4d ago), licensed MIT. It adds 5 tokens to every session and 222 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-19.

CloudDevOps and cloudLintagent-skillsai-agentsclaudeclideveloper-toolsmcp
Related

AWS S3 MCP Server compared with skills from other repositories

AWS S3 MCP Server next to 6 skills from other repositories
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