Initial import: open-design source for helix-mind.ai distribution

This repository contains the open-design daemon CLI source code, built
and packaged at https://helix-mind.ai/cli/open-design/latest.tgz for use
by the HelixMind /design slash command.

Licenses: Apache-2.0 (root) + MIT (skills/*)

skills/orbit-gmail/SKILL.md

@@ -0,0 +1,163 @@
+---
+name: orbit-gmail
+description: |
+  Open Orbit briefing skill — selected by the Orbit pipeline when
+  Gmail is the user's only connected connector, or when the user
+  explicitly scopes their daily digest to Gmail. Pulls the past 24
+  hours of inbox activity (replies awaited, mentions, cc, auto-
+  categorized bulk) from the user's authenticated Gmail connection
+  and renders the digest as the Orbit Daily Digest email opened
+  inside Gmail's reading view. This skill should not be triggered
+  manually — it is invoked by Orbit's daily-digest scheduler against
+  live Gmail data.
+triggers:
+  - "gmail briefing"
+  - "inbox digest"
+  - "email summary"
+  - "gmail 简报"
+  - "邮件摘要"
+od:
+  mode: prototype
+  platform: desktop
+  scenario: orbit
+  featured: 3
+  preview:
+    type: html
+    entry: index.html
+  design_system:
+    requires: false
+  example_prompt: "Generate today's Open Orbit Gmail briefing. Gmail is my only connected connector — pull yesterday's mail and render it as the opened Orbit Daily Digest email inside Gmail's reading view."
+---
+
+# 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.
+
+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. `☀ Eli, 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't | Do |
+|---|---|
+| 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 emails | Show 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 typography | Use `'Google Sans', 'Roboto', -apple-system, system-ui, sans-serif` |
+| Add drop shadows on the Gmail chrome | Flat surfaces; only the subtle Material 1 elevation when an element is focused |
+| Render avatars as squares | Always circles — sender 40px, card 32px, inline 28px |
+| Use lorem ipsum | Write real-shaped Gmail copy: "Q3 预算确认", "Login redesign 反馈", senders like Allen Liu / Marie / Nina Park |
+| Use dark mode | Stay on Gmail's default light theme (`#f6f8fc` page) |
+| Brand the Gmail chrome with Orbit | Orbit branding lives only inside the digest body (subject `Orbit` tag + footer micro-tag) |
+| Put yellow important stars on multiple inbox rows | Only the Orbit Daily Digest row can carry the important marker |