Gmail to Calendar Agent Skill

Extracts event and booking details from Gmail messages and creates verified Google Calendar events with duplicate and conflict checking.

Context cost
3k tokensestimated from the bundle, loaded when it triggers
Bundle
3 files · 11.9 kBtext throughout, nothing executable
Licence
not declarednone named by its author
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

指定または推定されたGmailメッセージを特定し、メールを根拠とする正確な情報で対応するGoogleカレンダー予定を作成する。会議招待、面談、ウェビナー、授業、チケット、ホテル宿泊、フライト、列車、新幹線、予約、および「このメールをカレンダーに登録」「昨日予約したホテルを予定に追加」などの依頼に使用する。接続されたGmailとGoogleカレンダーのアプリで元メールを特定し、予定項目を抽出・正規化し、オンライン会議の完全なURLを保持し、重複と競合を確認し、推測せずに対象カレンダーを選択し、必要に応じてプレビューを表示し、予定を作成して保存結果を検証する。

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.

productivity

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.md8.0 kB · preview
--- name: gmail-to-calendar ---
6# Gmail to Calendar
7
8メールを検証済みのカレンダー予定へ変換する。メールを正本として扱い、接続されたGmailとGoogleカレンダーのアプリを使用する。これらのアプリが利用できる場合に、ブラウザーのスクレイピングで代替してはならない。
9
10## Workflow
11
121. 元メールを特定する
13 - ユーザーがメールを指定した場合は、そのメッセージまたはスレッドを直接取得する
14 - それ以外の場合は、ユーザーの指定した日付、送信者、件名、組織、会場、予約に関する手掛かりで検索する。相対的な日付は、現在の日付とタイムゾーンを基準に解釈する
15 - 検索結果が広すぎる場合は、送信者、件名、予定の同一性で絞り込む。利用候補が複数残る場合は、候補を簡潔に示し、どれを使用するか確認する
16 - スレッドの場合は、最新の正本性のあるメッセージに加え、日程変更、キャンセル、訂正を確認する。引用された古い情報を現在の情報として扱わない
17
182. 予定情報を抽出する。テスト
19 - タイトル、開始、終了、タイムゾーン、場所、オンライン会議の完全なURL、主催者、参加者、メモ、元メールの識別子を抽出する
20 - 件名、プレーンテキストまたはHTML本文、ヘッダー、アプリが公開している添付ファイル、構造化された予約情報または招待情報を確認する
21 - 周辺の証拠から結果が一意に定まる場合に限り、相対的または一部が省略された日付を絶対値へ正規化する
22 - Zoom、Microsoft Teams、Google Meet、Webexなど、すべての完全な参加URLを説明欄へ原文どおり保持する。短縮、書き換え、開くこと、省略をしてはならない
23 - 項目の整形、旅行・宿泊の扱い、エッジケースの解決では、[references/event-rules.md](references/event-rules.md) を読む
24
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md115 words
Files3
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.
2,895
on trigger
The instruction body and 2 supporting files, read only when the skill fires.
1.5%
of a 200k window
Ten skills this size would take about 15% of the window before you open a file.
050k100k150k200k context window

3k 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

3 files, 11.9 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md8.0 kB
  • agents/openai.yaml0.2 kB
  • references/event-rules.md3.7 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 3 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.

# Gmail to Calendar · 3k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/gmail-to-calendar/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/gmail-to-calendar" ] && { [ ! -e .claude/skills/gmail-to-calendar ] || { mv .claude/skills/gmail-to-calendar "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/gmail-to-calendar" .claude/skills/ && echo "Installed .claude/skills/gmail-to-calendar"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add hnishim/gmail-to-calendar

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

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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