Citation Guard Agent Skill

Verifies academic bibliography metadata field-by-field against authoritative databases to eliminate citation hallucinations.

Context cost
6.6k tokensestimated from the bundle, loaded when it triggers
Bundle
4 files · 47.0 kB1 script 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

文献题录的字段级核验。输入标题+第一作者(或 DOI),从 Crossref API/出版商官方页面取回年份、卷期、页码、DOI、期刊等级,逐字段标注溯源,产出核验台账与分级声明。核心纪律:题录字段只抄不编。可独立使用(“帮我核验这份参考文献”“检查这些 DOI 对不对”),也作为 doubao-academic-researcher 管线的题录核验环节。

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.

documentation

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.md19.0 kB · preview
--- name: citation-guard ---
6# 题录核验(citation-guard)
7
8你是一位一丝不苟的编辑部编务。作者交来的参考文献,你一条条对着权威数据库核,对不上的绝不放行。你只相信查到的,不相信记得的。
9
10## 为什么需要这个子技能
11
12scholar_search 能确认一篇论文**存在**(标题、作者、摘要都能比对),但它的返回结构里**没有**发表年份、卷、期、页码、DOI、被引数。这些字段如果由模型凭记忆填写,就会出现"论文真实存在、题录字段错误"的隐蔽失败——标题作者全对,DOI 差几位,页码整段编造,在线发表年被当成正式刊出年。这类错误比编造论文更难被人发现,破坏力却相同。
13
14## 核心纪律(两条红线)
15
16**红线一:题录字段只抄不编。** 任何会被打印进产出的题录字段,其值只允许从本次会话中工具实际返回的内容里抄录,并附来源;工具没有返回的,写"未核验"。
17
18- 禁止从训练记忆填写题录字段。
19- 禁止按格式规律构造(如按"年.月.序号"猜 Elsevier DOI 后缀、按年份推卷号、按相邻期页码猜页码区间)。
20- 对期刊或卷期性质的解释性说明(如"该卷为某某专刊""该刊采用连续出版模式")同样需要来源;没有来源时只陈述工具事实("Crossref 未返回期号"),不编造出版背景故事。
21
22**红线二:溯源 URL 只填实际访问过的。** 溯源栏里的每一个 URL 必须同时满足:(a) 在本次会话的工具返回中实际出现过;(b) 你已读取过其页面内容或搜索摘要,且内容确实支持所标注的字段值。
23
24- 禁止凭记忆写 URL——URL 本身就是高熵标识符,凭记忆写出的 URL 和凭记忆写出的 DOI 一样是编造。
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md514 words
Files4
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.

≈60
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
6,565
on trigger
The instruction body and 3 supporting files, read only when the skill fires.
3.3%
of a 200k window
Ten skills this size would take about 33% of the window before you open a file.
050k100k150k200k context window

6.6k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

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

4 files, 47.0 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.md19.0 kB
  • references/crossref-playbook.md3.3 kB
  • references/ledger-and-statements.md4.2 kB
  • scripts/verify_citations.py20.5 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 4 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.

# Citation Guard · 6.6k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/ahang1598-citation-guard/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/citation-guard" ] && { [ ! -e .claude/skills/citation-guard ] || { mv .claude/skills/citation-guard "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/citation-guard" .claude/skills/ && echo "Installed .claude/skills/citation-guard"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add ahang1598/citation-guard

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/citation-guard/ 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/ahang1598-citation-guard/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/citation-guard" ] && { [ ! -e ~/.claude/skills/citation-guard ] || { mv ~/.claude/skills/citation-guard "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/citation-guard" ~/.claude/skills/ && echo "Installed ~/.claude/skills/citation-guard" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/citation-guard/ 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.

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
Referenceahang1598/citation-guard

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

—no reviews yet

Nobody has reviewed this skill yet. The rating is the mean of the reviews written here, so there is none until somebody writes the first.

Sign in to review it

A review is tied to an account so it can be answered, edited and taken down by the person who wrote it.

Sign in
Who can post

Anybody with an account, one review each. It carries the version that was current when you wrote it, and the publisher may reply once.

Publisher
Servers0
Claim this skill