Newsletter Autopilot Blueprint

A complete architecture for a newsletter automation app — AI content curation from RSS and social sources, draft issue generation, subscriber management, and human approval before sending. 12 nodes, ready to export to Cursor or Claude Code.

What this app does

Newsletter Autopilot is for founders, creators, and indie hackers who want to publish a weekly newsletter but spend 4+ hours per issue curating links, writing summaries, and formatting. The app fetches content from RSS feeds, Hacker News, X/Twitter lists, and Reddit threads you specify, uses AI to curate the most relevant articles and draft summaries in your newsletter's voice, and routes the full draft through a human approval gate before sending to subscribers via your email service.

Consistency is the hardest part of newsletter growth. Readers unsubscribe when issues are late or feel rushed. This app makes weekly publishing sustainable by automating the curation and first-draft work, while keeping a human in the loop for quality control.

This blueprint maps out 12 nodes across frontend pages, backend APIs, AI prompts, a human checkpoint, a database, an email service integration, and a scheduler. It's designed for a solo newsletter creator with up to 10,000 subscribers.

Architecture diagram

Node breakdown

Frontend pages

• Newsletter Dashboard — list of past and upcoming issues with status (curating, draft ready, approved, sent). Shows subscriber count, open rate, and click rate for sent issues. Upcoming issue preview with curated articles count and draft status.
• Draft Editor — full newsletter draft with article summaries, links, and the editor's intro/outro. Edit any AI-generated text, reorder sections, add or remove articles, swap headlines. Preview the rendered newsletter (HTML and plain text). Approve to send, or reject and regenerate.
• Subscriber Settings — manage content sources: add RSS feed URLs, Hacker News topics, X/Twitter list IDs, Reddit subreddit names. Set newsletter cadence (weekly, bi-weekly), sending day and time, and configure the newsletter's voice (analytical, casual, opinionated). Connect SendGrid API key for email delivery.

Backend APIs

• Newsletters API — GET /api/newsletters (list of past and upcoming issues), GET /api/newsletters/:id (full draft with articles and summaries), POST /api/newsletters/:id/approve (approve draft for sending), POST /api/newsletters/:id/send (trigger email send via SendGrid), GET /api/newsletters/:id/stats (open rate, click rate, unsubscribe count).
• Subscribers API — GET /api/subscribers (list with subscription date and status), POST /api/subscribers (add subscriber — used by signup form), DELETE /api/subscribers/:id (unsubscribe), GET /api/subscribers/count (total active subscriber count).

AI prompts

• Content Curator — input: fetched articles from all sources (titles, URLs, descriptions, source platform), newsletter topic/niche, previous issues' topics (to avoid repetition); task: rank articles by relevance and novelty, select top 5-10 for inclusion, identify themes or connections across articles; output: ranked article list with relevance score, suggested section groupings, and a theme summary for the issue.
• Draft Generator — input: curated articles, newsletter voice setting, editor's name, issue number, previous issues' intros (for consistency); task: write a full newsletter draft with intro paragraph, article summaries (2-3 sentences each with key takeaway), section headers, and a closing note; output: structured newsletter draft in HTML and plain text, with article links preserved.

Human checkpoint

• Approval Gate — before any newsletter is sent, a human reviews the full draft in the Draft Editor. They edit the intro, swap article order, remove articles they disagree with, rewrite summaries, and adjust the closing note. The AI does the heavy lifting of curation and first-draft writing; the human adds judgment and personality. No newsletter is ever sent without explicit approval.

Database, email & services

• Newsletter DB (PostgreSQL) — tables: newsletters (id, issue_number, status, draft_html, draft_text, sent_at, subject_line), articles (id, newsletter_id, title, url, source, summary, position), subscribers (id, email, status, subscribed_at, unsubscribed_at), content_sources (id, user_id, type, url, label, is_active), users (id, email, name, newsletter_voice, sendgrid_api_key, created_at).
• Email Service (SendGrid) — sends approved newsletter to all active subscribers via SendGrid's API. Handles bounce tracking, unsubscribe management (footer link), and delivery analytics (opens, clicks). Uses a verified sender domain.
• Content Fetcher (Cron) — runs daily. Fetches new articles from all active content sources (RSS feeds, Hacker News API, X/Twitter lists via API, Reddit JSON endpoints). Stores raw articles for the Content Curator. Deduplicates articles already included in previous issues.

How it works end-to-end

1. Creator sets up content sources in Subscriber Settings — adds 5 RSS feeds, a Hacker News topic, and a Reddit subreddit
2. Connects SendGrid API key for email delivery
3. Sets cadence: weekly, every Friday at 9am
4. Every day, the Content Fetcher pulls new articles from all sources and stores them
5. On Wednesday (2 days before send), the Content Curator AI ranks the week's articles by relevance and novelty, selects top 5-10, and identifies a theme
6. The Draft Generator AI writes the full newsletter draft — intro, article summaries, section headers, closing note
7. Draft appears on the Newsletter Dashboard as "draft ready"
8. Creator opens the Draft Editor, reviews and edits the draft at the Approval Gate
9. Creator approves the draft — status changes to "approved"
10. On Friday at 9am, the Email Service sends the newsletter to all active subscribers via SendGrid
11. Open rate, click rate, and unsubscribe count appear on the Dashboard over the next 48 hours

The Approval Gate is what separates this from spam. AI-curated newsletters without human review tend to feel generic — readers can tell. The human editor adds opinions, context, and personality that the AI can't replicate. The AI does 80% of the work; the human does the 20% that makes it worth reading.

Bluemoonkey input prompt

This is what you paste into Bluemoonkey's canvas — a plain-language description of what the app should do. Bluemoonkey's AI advisor reads this and generates the full node architecture (pages, APIs, database, AI prompts, checkpoint, email service, and scheduler) shown above. You don't need to write anything technical here — just describe what you want in your own words.

A newsletter app for creators who want to publish weekly but don't have time to curate content and write every issue from scratch.

I need a Newsletter Dashboard showing past and upcoming issues with their status, subscriber count, open rate, and click rate.

A Draft Editor page where I see the full newsletter draft — intro, article summaries, links — and can edit any part, reorder sections, or remove articles before sending.

A Subscriber Settings page to manage my content sources (RSS feeds, Hacker News, X/Twitter lists, Reddit), set how often I publish (weekly or biweekly), pick a sending day and time, and choose my newsletter's voice (analytical, casual, or opinionated).

The app should automatically pull in new articles from my sources every day, then a couple days before sending, have AI pick the best 5-10 articles and write a full draft with summaries in my voice.

I must review and approve every draft before it sends — nothing goes to subscribers automatically.

Once approved, send the newsletter to all my subscribers by email on the scheduled day and time, and track opens and clicks afterward.

After Bluemoonkey generates the blueprint, review each node — adjust wording, check the approval gate logic, and confirm the architecture matches what you need. From there, Bluemoonkey's canvas gives you a build-ready prompt for Cursor or Claude Code with one click — no manual prompt writing required.

New to planning? Read how to plan an app before coding.

FAQ

What is a newsletter automation app?

A newsletter automation app curates content from sources you specify, uses AI to draft newsletter issues from that content, and routes drafts through a human approval gate before sending to subscribers. It helps founders and creators publish consistently without spending hours curating and writing.

Can I export this blueprint to Cursor?

Yes. Paste the Bluemoonkey input prompt above into the free canvas, let the AI advisor build out the blueprint, then click Export. Bluemoonkey generates a structured, Cursor-ready prompt for you automatically — no manual prompt writing needed.

Do I need to write the Cursor prompt myself?

No. You only write the short, plain-language prompt above and paste it into Bluemoonkey's canvas. Bluemoonkey's AI advisor turns it into the full node architecture, and when you click Export, it generates the structured, technical prompt for Cursor or Claude Code automatically.

Does it send newsletters automatically?

No. The AI curates content and generates a draft, but a human must review and approve the draft in the Draft Editor before sending. The email is sent on schedule only after approval. If no one approves, it doesn't send.

What content sources does it support?

The blueprint supports RSS feeds, Hacker News (via API), X/Twitter lists (via API), and Reddit (via JSON endpoints). You can add any source that provides an RSS feed or public API. The Content Fetcher stores articles daily and the Content Curator AI ranks them by relevance.