cloud-metadata

A playbook for using cloud instance metadata, a local service that can reveal information and temporary credentials about a running cloud machine.

In plain words
What is it for?
It helps testers examine metadata services across AWS, Azure, GCP, Alibaba Cloud, and Tencent Cloud, extract identity credentials, assess IMDSv2 bypasses, and enumerate cloud resources.
Why use it?
It helps assess SSRF and shell-access situations where metadata endpoints may expose cloud credentials and lead to access to other services.

Skill for Claude CodeCodex

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/wgpsec/aboutsecurity/cloud-metadata
Any agent
npx skills add wgpsec/AboutSecurity --skill cloud-metadata
Clone the repo
git clone --depth 1 https://github.com/wgpsec/AboutSecurity

Made for: Claude Code, Codex.

Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,734 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00113 $0.01734
Opus 5 $0.00056 $0.00867
Sonnet 5 $0.00023 $0.00347
Haiku 4.5 $0.00011 $0.00173

Measured 2d ago against content hash 99ad7871d064, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

cloud-metadata scanned grade C with 1 finding 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 2d 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.

Cloud metadata endpointhighServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

description: "云元数据利用。当通过 SSRF 或已获取的 shell 可以访问云实例元数据服务时使用。覆盖 AWS/Azure/GCP/阿里云/腾讯云的元数据端点、IAM/CAM 凭据提取、IMDSv2 绕过、从元数据到云服务枚举的完整攻击链。发现任何 SSRF 场景、内网可访问 169.254.169.254 或 100.100.100.200 的场景都应使用此技能"
skills/cloud/cloud-metadata/SKILL.md · 148 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

3 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. 2d ago First seen · 148 lines · 113 tokens per session scan C 99ad7871d064

Subscribe to this mod's changes

cloud-metadata is a skill published in the GitHub repository wgpsec/AboutSecurity (1,709 stars, last pushed 2d ago), with no licence file. It adds 113 tokens to every session and 1,734 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it C with 1 finding (cloud metadata endpoint). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.