GEO Retest Comparison Agent Skill

Compares Generative Engine Optimization (GEO) baseline and retest datasets to verify optimization performance with deterministic…

Context cost
500 tokensestimated from the bundle, loaded when it triggers
Bundle
3 files · 3.6 kB1 script among them — read before you run
Licence
Apache-2.0the author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

对同一冻结问题集的 GEO 基线与复测进行可比性检查、确定性差异计算、变化解释和下一轮行动建议。用户要求复测分析、前后对比、优化效果验证或阶段复盘时使用。

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.

marketingperformance
Filed under

Sales & CRM

The skill itself

A skill is instructions the model reads, and here they are in full: the front matter loads with every session, and the body below it loads when the skill triggers. The other files in the bundle are listed further down.

SKILL.md1.8 kB
--- name: compare-geo-retest ---
6# GEO 同题复测分析
7
8复测先证明可比,再讨论变化。当前 Codex 会话解释变化;脚本只核对问题身份和计算差异。
9
10## 工作流
11
121. 读取基线与复测 dataset/summary。两批必须记录 question set、问题 identity hash、平台、区域/语言、模型/能力版本、采集窗口、方法版本和 Evidence 状态。
132. 运行 scripts/compare-retest.mjs <baseline-summary.json> <retest-summary.json> <comparison.json>。若问题集或方法版本不一致,结果必须为 not_comparable,不得输出效果结论。
143. 分开解释:品牌正文提及变化、推荐变化、首位变化、来源命中变化、问题覆盖变化和平台结构变化。样本失败、平台版本变更和时间窗口差异是限制,不是品牌效果。
154. 变化按三类输出:可确认事实、合理解释、待验证假设。任何归因都必须指出还能由什么外部变化解释。
165. 生成 分析/复测/<date>-复测分析.md、对比结果.json 和 下一周期.json。列出保留动作、停止动作、修订内容、未解决问题和下一复测窗口。
176. 报告必须明确基线/复测样本数、排除项、可比性判定、Evidence refs 和局限;完成后登记本地产物 hash。
18
19## 真实性边界
20
21- “同题”意味着稳定问题 identity,不是文本看起来相似。
22- 小样本变化不自动代表趋势;不得伪造显著性或 ROI。
23- 案例中的正向结果只用于学习报告结构,不能作为当前项目先验。
24
This is the whole of SKILL.md. Install the skill to get it and everything beside it.
In the file
SKILL.md56 words
Files3
LicenceApache-2.0
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.

≈30
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
470
on trigger
The instruction body and 2 supporting files, read only when the skill fires.
0.25%
of a 200k window
Ten skills this size would take about 3% of the window before you open a file.
050k100k150k200k context window

500 tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Small enough to keep loaded permanently without thinking about it.

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, shown in full above.

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

3 files, 3.6 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.md1.8 kB
  • agents/openai.yaml0.2 kB
  • scripts/compare-retest.mjs1.6 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 3 files you can review in full before installing. The Apache-2.0 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.

# GEO Retest Comparison · 500 tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/geo-retest-comparison/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/geo-retest-comparison" ] && { [ ! -e .claude/skills/geo-retest-comparison ] || { mv .claude/skills/geo-retest-comparison "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/geo-retest-comparison" .claude/skills/ && echo "Installed .claude/skills/geo-retest-comparison"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add stella-dust/geo-retest-comparison

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/geo-retest-comparison/ 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/geo-retest-comparison/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/geo-retest-comparison" ] && { [ ! -e ~/.claude/skills/geo-retest-comparison ] || { mv ~/.claude/skills/geo-retest-comparison "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/geo-retest-comparison" ~/.claude/skills/ && echo "Installed ~/.claude/skills/geo-retest-comparison" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/geo-retest-comparison/ 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 compare-geo-retest in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, geo-retest-comparison.

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
Referencestella-dust/geo-retest-comparison

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.

Reviews

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