Jeomsin Saju Fortune Reader Agent Skill

Performs Korean-style Saju (Four Pillars) fortune readings with local astronomical chart calculation, structured analysis, and actionable…

Context cost
3.4k tokensestimated from the bundle, loaded when it triggers
Bundle
6 files · 27.2 kB2 scripts among them — read before you run
Licence
not declarednone named by its author
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Perform Korean-style Saju (사주/四柱) fortune readings inspired by the core divination experience of the Jeomsin app. Use when the user asks to 算命、看八字、看韩国四柱、今日运势、流年、事业运、财运、感情运、健康趋势、幸运提示、两人合盘,或提供出生年月日时、四柱、天干地支要求解读。支持中文或韩式表达,以经过验证的四柱命盘为基础生成结构化、娱乐性和行动导向的解读;不用于市场分析、App 产品分析或确定性预测。

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.

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.md7.0 kB · preview
--- name: jeomsin-fortune-reader ---
6# Jeomsin Fortune Reader
7
8执行点神式的核心算命体验:以韩国四柱命理(사주)为主,输出清晰、温和、可行动的运势解读。把结果定位为传统文化与自我反思内容,不宣称科学验证或命定结果。
9
10## 选择运行模式
11
12优先选择能保证排盘准确性的模式:
13
141. **已验证四柱模式**:用户提供年柱、月柱、日柱、时柱,例如 甲子 丙寅 戊辰 庚申。直接校验并解读。
152. **出生信息排盘模式**:用户提供公历出生日期、时间和时区。使用随附本地脚本按节气换年、换月;说明时区和子时换日规则。靠近节气或换日边界时要求复核。
163. **轻量娱乐模式**:无法可靠排盘时,只提供不依赖精确干支的反思式运势,并明确标记“轻量娱乐版”。不得假造四柱。
17
18不得把公历月份直接当作月柱,不得仅凭生肖生成“完整八字”。随附脚本不转换农历日期;用户提供农历时,先要求可靠地转换为公历。不要把出生信息发送到第三方网站,除非先得到明确同意并说明隐私影响。
19
20## 收集输入
21
22完整排盘需要:
23
24- 出生日期,并注明公历或农历。
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md194 words
Files6
Licencenot declared
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.

≈80
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
3,270
on trigger
The instruction body and 5 supporting files, read only when the skill fires.
1.7%
of a 200k window
Ten skills this size would take about 17% of the window before you open a file.
050k100k150k200k context window

3.4k 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

6 files, 27.2 kB on disk. Mostly text — the instructions the model reads — with 2 scripts in it that your client would run only if the instructions tell it to.

  • SKILL.md7.0 kB
  • agents/openai.yaml0.3 kB
  • references/reading-formats.md2.3 kB
  • references/saju-method.md3.8 kB
  • scripts/analyze_pillars.py6.1 kB
  • scripts/chart_from_gregorian.py7.7 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 2 scripts beside the text, so the bundle is 6 files you can review in full before installing.

Install

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

# Jeomsin Saju Fortune Reader · 3.4k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/jeomsin-saju-fortune-reader/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/jeomsin-saju-fortune-reader" ] && { [ ! -e .claude/skills/jeomsin-saju-fortune-reader ] || { mv .claude/skills/jeomsin-saju-fortune-reader "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/jeomsin-saju-fortune-reader" .claude/skills/ && echo "Installed .claude/skills/jeomsin-saju-fortune-reader"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add yuling170916/jeomsin-saju-fortune-reader

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

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
Referenceyuling170916/jeomsin-saju-fortune-reader

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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Who wrote it

YU
yuling170916

Publishes on mcprush.

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