IP Quality & Proxy Checker Agent Skill

Evaluates IP addresses and proxy nodes across registries, geolocation consensus, fraud scores, and AI service accessibility.

Context cost
2.1k tokensestimated from the bundle, loaded when it triggers
Bundle
2 files · 32.0 kB1 script among them — read before you run
Licence
MITthe author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

检测一个 IP 或住宅/机房代理节点的质量——注册库、地理库一致性、ASN/org、风控信誉、黑名单、住宅真实性、BGP 宣告、目标服务(Grok/Claude/ChatGPT)解锁与延迟三角测量。判定该 IP 能否安全用于 AI 服务(避免被地理库误判到别国导致区域锁)。当用户说"查这个 IP"、"这个节点在哪"、"这个代理能用吗"、"IP 质量检测"、"验收住宅 IP"、"为什么被判定在 X 国"、"check ip"、给出 socks5 代理凭证问归属或解锁时使用。

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

accessibilitysecuritytesting

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md8.4 kB · preview
--- name: ip-check ---
6# IP 质量检测
7
8判定一个 IP(或带凭证的 socks5 代理)是否适合用于 AI 服务(Grok/Claude/ChatGPT),核心是识破"物理在美国、纸面在别国"的租赁 IP 段——这类 IP 会被 ipinfo/MaxMind 等商业地理库判到欧盟,导致 Grok/Claude 区域锁,而风控只看地理库不看物理延迟。
9
10## Operating Contract
11
12只读检测,不改任何系统配置。脚本只发出站 HTTP/DNS 查询和(带凭证时)通过代理的探测,不写文件、不改代理设置、不动网络配置。
13
14Direct actions:
15- 对用户给出的 IP 或代理凭证跑 ipcheck.py,读 JSON,按 4 条硬标准出记分卡。
16- 区分事实(JSON 字段)与推断(如"物理大概率在美东,依据延迟排名")。
17
18Escalate before:
19- 用户要求"改配置/切节点/加进 Clash"等落地动作时——那属于 clash-doctor 等运维 skill,本 skill 只负责判定,不代切。
20- DNSBL 层报 unreliable(DNS 劫持)时,必须提示用户换网络重跑,不得把未测准当"干净"。
21- 代理出口无法确认、TLS 验证失败或代理参数无效时,脚本会返回非零并输出 error;不得改用 gateway 或跳过代理层继续判定。
22
23Evidence-backed pushback:
24- 用户坚称某 IP 是美国、但 rdap 显示 RIPE 注册 + country 非 US 时,以 whois/geo 字段反驳,不附和主观判断。
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md576 words
Files2
LicenceMIT
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈70
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
2,030
on trigger
The instruction body and 1 supporting file, read only when the skill fires.
1.1%
of a 200k window
Ten skills this size would take about 11% of the window before you open a file.
050k100k150k200k context window

2.1k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Middling. Fine to keep on in a project where you use it weekly, worth unloading in one where you never do.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

2 files, 32.0 kB on disk. Mostly text — the instructions the model reads — with 1 script in it that your client would run only if the instructions tell it to.

  • SKILL.md8.4 kB
  • scripts/ipcheck.py23.6 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 1 script beside the text, so the bundle is 2 files you can review in full before installing. The MIT licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# IP Quality & Proxy Checker · 2.1k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/ip-quality-proxy-checker/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/ip-quality-proxy-checker" ] && { [ ! -e .claude/skills/ip-quality-proxy-checker ] || { mv .claude/skills/ip-quality-proxy-checker "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/ip-quality-proxy-checker" .claude/skills/ && echo "Installed .claude/skills/ip-quality-proxy-checker"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add majiayu000/ip-quality-proxy-checker

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/ip-quality-proxy-checker/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/ip-quality-proxy-checker/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/ip-quality-proxy-checker" ] && { [ ! -e ~/.claude/skills/ip-quality-proxy-checker ] || { mv ~/.claude/skills/ip-quality-proxy-checker "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/ip-quality-proxy-checker" ~/.claude/skills/ && echo "Installed ~/.claude/skills/ip-quality-proxy-checker" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/ip-quality-proxy-checker/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as ip-check in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, ip-quality-proxy-checker.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referencemajiayu000/ip-quality-proxy-checker

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

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