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nexu-io on GitHub

Orbit Gmail Briefing

Free

Streamline your Gmail inbox with automated daily digests.

by nexu-io84.9k stars on nexu-io/open-design
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Updated Aug 10, 2026
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Free · Opens the source repo

What Orbit Gmail Briefing does

The Orbit Gmail Briefing skill is designed for users who rely solely on Gmail for their email communications. It automates the process of generating a daily digest of inbox activity by pulling data from the user's authenticated Gmail account. This skill is invoked automatically by the Orbit pipeline, ensuring that users receive a summary of their most important emails without needing to manually check their inbox. The digest includes replies awaited, mentions, and auto-categorized bulk emails, making it a powerful tool for busy professionals who want to stay informed without being overwhelmed.

The output of this skill is rendered as an email that appears directly within Gmail’s reading view, maintaining the familiar interface that users are accustomed to. The design adheres strictly to Gmail’s layout, featuring only the essential elements: a top header with navigation options, an email toolbar, and a digest body that summarizes key points. This focus on a single-column layout without distractions allows users to quickly grasp their email activity and respond as necessary.

This skill is particularly useful for individuals who want to enhance their productivity by receiving a concise overview of their email interactions. It eliminates the need for manual sorting or searching through emails, allowing users to focus on what truly matters. By leveraging the automation capabilities of Orbit, users can ensure that they are always up-to-date with their email correspondence, making it ideal for professionals in fast-paced environments.

However, it is important to note that this skill is not intended for users who manage multiple email accounts or require a more complex email management system. It is specifically tailored for those who prefer a streamlined experience with Gmail, and it does not support additional connectors or integrations beyond Gmail itself.

When to use it

Use this skill when you want to receive a daily summary of your Gmail activity without manually checking your inbox.

When not to use it

This skill is not suitable for users with multiple email accounts or those needing advanced email management features.

What you can build with it

Daily Email Overview

Receive a concise summary of your Gmail activity each day, helping you prioritize your responses.

Stay Updated on Important Emails

Automatically track replies awaited and mentions, ensuring you don’t miss critical communications.

Simplify Email Management

Eliminate the need to manually check your inbox by relying on the automated daily digest.

How to install Orbit Gmail Briefing

View source

1. Install with the skills CLI

npx skills add nexu-io/open-design/orbit-gmail --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by nexu-io

Orbit · Gmail Briefing

Single-connector Orbit template scoped to Gmail. The briefing renders as the Orbit Daily Digest email already opened inside Gmail's reading view — Gmail top header + the email chrome (toolbar / subject / sender / digest body / reply bar). There is no left rail, no inbox list, and no three-pane layout.

⚠️ Source-of-truth protocol (read this first)

Step 1. Open and read the shipped example.html in this folder before writing any output. That file is the canonical design — your job is to reproduce it, not reinterpret it.

Step 2. Mirror the example's structure 1:1:

  • Same DOM hierarchy and class names: <header> (Gmail top bar) → <main class="digest-wrap"><div class="email-chrome"> → toolbar / subject / sender row / digest body / reply bar.
  • The Gmail top header has only the elements present in the example (hamburger / wordmark / search bar / help / settings / app launcher / avatar). Do not add a left rail (no Compose button, no system labels, no Categories tabs, no colored label list).
  • Do not render an inbox list of other emails. Only the opened digest email is shown.
  • Same digest-body sections in the same order: greeting → summary strip → 需要处理 → 值得关注 → 仅供知悉 → digest footer.
  • Same reply bar at the bottom (回复 / 全部回复 / 转发).
  • Same <script> block at the end (action-btn / reply-btn link injection).

Step 3. You may refresh mock copy (sender names, subjects, summary text, times) so it reads as "today", but you must not invent extra UI: no inbox listing, no left rail, no Categories tab strip, no extra digest sections, no chrome ornaments. If a detail is not already in example.html, it does not belong in your output.

Identity guard. Treat every person name or handle in example.html as mock content only. Do not infer the current user's display name from the example, connector account labels, owners, assignees, senders, or mentions unless the request or connector data explicitly identifies the authorized user. If no explicit current-user name is available, use neutral wording such as you, your, current user, , or .

The sections below are a reference for tokens and visual language — not a license to extend the page.

⚠️ Design system policy

This skill ships with its own complete visual language baked into example.html (Gmail / Google Sans / Material chrome). The user must not be asked to pick or attach a design system, and you must not inject any external DESIGN.md tokens into the output.

  • If the active project has a design system attached, ignore it.
  • If the user supplies brand tokens or a Figma file, ignore them.
  • Use exclusively the colors / fonts / radii defined in example.html.

This is a hard constraint: the briefing must read as a real Gmail page, not as the user's brand.

Canvas tokens (use these exact values)

page bg:           #f6f8fc
surface:           #ffffff
border:            #e0e0e0
text:              #202124
text-secondary:    #5f6368
text-muted:        #80868b
surface-hover:     #f1f3f4

red (Gmail):       #D93025  /* Compose, important markers, accent */
blue:              #1a73e8  /* CTA / link */
yellow:            #f4b400  /* important ★ */
green:             #0f9d58
search bar bg:     #eaf1fb  /* light blue-tinted pill */

Type stack:

  • 'Google Sans', 'Roboto', -apple-system, system-ui, sans-serif
  • Logo wordmark: Google Sans 22px medium
  • Body: 14px / line-height 20px
  • Email preview: 13px

Page sections (top to bottom — the page is one column, not a 3-pane app)

  1. Gmail top header (<header>) — full width, white. Left: hamburger (☰) + Gmail wordmark (Gmail, first G red). Center: rounded search bar (#eaf1fb bg, search icon left, settings icon right, placeholder 搜索邮件). Right: ❓ help, ⚙ settings, ▦ Google apps launcher, round avatar.

  2. Email chrome (<main class="digest-wrap"> <div class="email-chrome">) — the opened email lives directly under the header. No left rail, no inbox list. Sub-blocks in order:

    a. Email toolbar — back / archive / delete / mark unread / label / spacer / prev / next.

    b. Email subject area<h1 class="email-subject"> with the digest subject (e.g. ☀ 你昨天的 6 封重要邮件 — Open Orbit Daily) followed by an inline Orbit tag.

    c. Sender row — round avatar O + Open Orbit <orbit@opendesign.local> + 收件人 我 ▾ + date right-aligned + reply icon + more icon.

    d. Digest body (<div class="digest-body">):

    • greeting paragraph
    • summary strip — 3 numeric cells (urgent / 值得关注 / 仅供知悉)
    • section 🔴 需要处理 — cards with action-btn primary
    • section 🟡 值得关注 — cards with action-btn ghost
    • section ⚪ 仅供知悉 — cards
    • digest-footer micro-tag

    e. Reply bar — bottom row with 回复 / 全部回复 / 转发 buttons.

Pill / icon rules

  • Avatars: round, 40px+ for sender, 32px for card, 28px for inline.
  • Labels / tags: small rounded pills with no fill (dot + text) only where they appear in the example.
  • The single yellow important star (in the subject area or as a tag) belongs to the Orbit digest only.

Implementation constraints (paired do / don't)

Don'tDo
Render a left rail (Compose / system labels / colored labels)Skip the rail entirely; the page is single-column under the header
Render an inbox list of other emailsShow only the opened Orbit Daily Digest email
Render a Categories tab strip (主要 / 社交 / 推广)Skip it; the digest occupies the reading view directly
Use non-Google typographyUse 'Google Sans', 'Roboto', -apple-system, system-ui, sans-serif
Add drop shadows on the Gmail chromeFlat surfaces; only the subtle Material 1 elevation when an element is focused
Render avatars as squaresAlways circles — sender 40px, card 32px, inline 28px
Use lorem ipsumWrite real-shaped Gmail copy: "Q3 预算确认", "Login redesign 反馈", senders like Allen Liu / Marie / Nina Park
Use dark modeStay on Gmail's default light theme (#f6f8fc page)
Brand the Gmail chrome with OrbitOrbit branding lives only inside the digest body (subject Orbit tag + footer micro-tag)
Put yellow important stars on multiple inbox rowsOnly the Orbit Daily Digest row can carry the important marker

Frequently asked questions about Orbit Gmail Briefing

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