agentmods.dev

shelby-s3

shelby-s3 is a skill for Claude Code, Codex from shelby/shelby-skills. It costs 102 tokens per session (1,485 once invoked), scanned A, original, no licence file.

A guide for storing and reading data on Shelby through its S3-compatible storage service. S3 is a common interface for object storage, and the guide covers command-line tools and several programming libraries.

In plain words
What is it for?
Use it to upload, retrieve, migrate, train on, or query data held through Shelby’s S3 API.
Why use it?
It provides a way to add Shelby storage to a project or move existing S3, R2, or MinIO data and code to Shelby.

Skill for Claude CodeCodex

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

not rated 45repo 8d ago A scan 102 tokens no licence

Good fit Use it to upload, retrieve, migrate, train on, or query data held through Shelby’s S3 API.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/shelby/shelby-skills/shelby-s3
View source ↗ shelby/shelby-skills shelby.xyz
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 shelby/shelby-skills --skill shelby-s3
Clone the repo
git clone --depth 1 https://github.com/shelby/shelby-skills

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 shelby-s3

README.md
[![agentmods](https://agentmods.dev/badge/skills/shelby/shelby-skills/shelby-s3/github.svg)](https://agentmods.dev/skills/shelby/shelby-skills/shelby-s3)
Your own site
<a href="https://agentmods.dev/skills/shelby/shelby-skills/shelby-s3"><img src="https://agentmods.dev/badge/skills/shelby/shelby-skills/shelby-s3/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 shelby-s3

Your own site · 80×15
<a href="https://agentmods.dev/skills/shelby/shelby-skills/shelby-s3"><img src="https://agentmods.dev/badge/skills/shelby/shelby-skills/shelby-s3.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,485 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 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 $0.00102 $0.01485
Opus 5.5 $0.00041 $0.00594
Sonnet 5.5 $0.00020 $0.00297
Haiku 4.5 $0.00010 $0.00148

Measured 8d ago against content hash 79ab1bb860f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

shelby-s3 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 8d 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.

skills/shelby-s3/SKILL.md · 110 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

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 110 lines · 102 tokens per session scan A 79ab1bb860f7

Subscribe to this mod's changes

shelby-s3 is a skill published in the GitHub repository shelby/shelby-skills (45 stars, last pushed 8d ago), with no licence file. It adds 102 tokens to every session and 1,485 once invoked, about $0.0004 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 2026-10-30.

CloudDevOps and cloud
Related

shelby-s3 compared with skills from other repositories

shelby-s3 next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
shelby-s3shelby/shelby-skillsSkill458d agononeA102Claude Code, Codex
gke-compute-classesgoogle/skillsSkill22kyesterdayApache-2.0A83Claude Code, Codex
gke-reliabilitygoogle/skillsSkill22kyesterdayApache-2.0A85Claude Code, Codex
gke-workload-securitygoogle/skillsSkill22kyesterdayApache-2.0A171Claude Code, Codex
cloud-architectJeffallan/claude-skillsSkill12k7d agoMITA71Claude Code
nemo-automodel-launcher-configNVIDIA/skillsSkill3.9kyesterdayApache-2.0A30Claude Code
azure-mgmt-botservice-dotnetmicrosoft/skillsSkill3.2kyesterdayMITA78Claude Code