aws:s3-sync

aws:s3-sync is a skill for Claude Code, Codex from belarusrulez/skill-core. It costs 37 tokens per session (403 once invoked), scanned A, original, no licence file.

A way to mirror files between a local folder and an Amazon S3 bucket, which is online storage provided by AWS. It supports previews, exclusions, and optional removal of files that exist only at the destination.

In plain words
What is it for?
Use it to upload local files to S3, download S3 files locally, or synchronize both locations. Use a dry run to preview changes and exclusions to skip selected files.
Why use it?
It helps keep two file locations aligned while letting you review planned changes first. Exclude patterns and dry runs reduce accidental transfers or deletions.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

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.

agentmods
npx agentmods add skills/belarusrulez/skill-core/aws-s3-sync
Any agent
npx skills add belarusrulez/skill-core --skill aws-s3-sync
Clone the repo
git clone --depth 1 https://github.com/belarusrulez/skill-core

Made for: Claude Code, Codex.

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-sync

README.md
[![agentmods](https://agentmods.dev/badge/skills/belarusrulez/skill-core/aws-s3-sync.svg)](https://agentmods.dev/skills/belarusrulez/skill-core/aws-s3-sync)
Your own site
<a href="https://agentmods.dev/skills/belarusrulez/skill-core/aws-s3-sync"><img src="https://agentmods.dev/badge/skills/belarusrulez/skill-core/aws-s3-sync.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 403 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00037 $0.00403
Opus 5 $0.00018 $0.00201
Sonnet 5 $0.00007 $0.00081
Haiku 4.5 $0.00004 $0.00040

Measured 5d ago against content hash cbb2e9cd76f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

aws:s3-sync 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 5d 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.

test/skills/aws-s3-sync/SKILL.md · 24 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 24 lines · 37 tokens per session scan A cbb2e9cd76f0

Subscribe to this mod's changes

aws:s3-sync is a skill published in the GitHub repository belarusrulez/skill-core (2 stars, last pushed 3mo ago), with no licence file. It adds 37 tokens to every session and 403 once invoked, about $0.0002 per session on Opus 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 2026-08-31.

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