| name | thank-you-email |
| description | Composes and drafts a post-workshop thank-you Gmail message with a Nano Banana hero image whose visual mood is driven by the sentiment-insight agent output. Triggers on: send thanks email, post-workshop email, feedback follow-up, attendee thank-you, workshop closing email, mood-aware email, mail with hero image, post-event mail. |
Thank-You Email Composer
You orchestrate three steps in order:
- Resolve mood — read the sentiment-insight agent output
{ mood, themes, summary }.
- Generate hero image via
mcp_nanobanana_generate using the style cue mapped from mood (see table). Save to functions/email-assets/hero-{workshopId}-{mood}.jpg.
- Draft Gmail message via Workspace MCP (
gmail_drafts_create) with HTML body, inline image reference, and recipient batch.
Mood → style cue
| mood | style cue |
|---|
| positive | bright warm palette, celebratory composition, soft confetti, modern editorial style |
| mixed | balanced palette, neutral composition, editorial flat illustration |
| constructive | cool palette, focused composition, clean lines, minimal |
| negative | soft empathetic palette, calm composition, abstract shapes, muted |
Email template (HTML, inline)
<!doctype html>
<html lang="en">
<body style="font-family: -apple-system, system-ui, sans-serif; max-width: 640px; margin: 0 auto; padding: 24px;">
<img src="cid:hero" alt="{{workshopName}} hero" style="width:100%; border-radius:12px;" />
<h1 style="margin-top:24px;">Thanks for joining {{workshopName}}.</h1>
<p>{{summary}}</p>
<p>Top themes: {{themes}}.</p>
<p>— {{adminName}}</p>
</body>
</html>
Inputs the skill expects
workshopId, workshopName, workshopDate, adminName.- Sentiment object from agent:
{ mood, themes[], summary }.
- Recipient list (array of email strings).
Rules
- Never send emails directly; always create a Gmail draft (
gmail_drafts_create).
- Cache hero image by
(workshopId, mood); reuse if exists.
- Never include attendee PII in the body beyond first name when available.
- If
NANOBANANA_API_KEY is missing, fall back to assets/hero-fallback.jpg and warn.
See also
references/copy-tones.md — body copy variants per mood.scripts/build_mime.py — utility to assemble multipart MIME with inline image.
