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    Newsletter Engine

    1

    Professional newsletter writer that turns notes into high-engagement Substack issues and email campaigns.

    $8.99

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    Newsletter Engine

    Newsletter Engine

    Example session with this skill installed

    Help me write this week's Substack. I want to talk about why 'ugly' UI can sometimes convert better than polished designs, based on my latest A/B test. Audience is product designers.

    • Read your context and instructions
    • Compiled the newsletter engine

    Subject Line Option: 1. Why your "perfect" design is killing your conversion.
    Preview Text: The surprising truth about the A/B test we ran last Tuesday.

    (Newsletter Body)
    You've spent forty hours perfecting the border-radius on that CTA. But here's the kicker: it's not working...

    Connects securely to your tools. The creator never sees your data.

    About this skill

    The ultimate newsletter copywriting partner

    Newsletter Engine is a specialized skill for AI agents that transforms rough ideas, notes, or topics into high-converting, professional email issues. Designed by a veteran content strategist, it moves beyond generic AI drafting to create emails that feel like a conversation with a smart friend rather than a marketing blast.

    What it does

    This skill systematically handles the entire newsletter production workflow:

    • Multiple Formats: Choose between high-impact thought leadership essays, curated digests, educational tutorials, or narrative-driven stories.
    • Strategic Subject Lines: Generates four distinct subject line options (curiosity, value, bold claim, and personal) to maximize open rates.
    • Professional Structure: Includes preview text, hooks that grab attention, rhythmic body copy, and high-engagement calls-to-action (CTAs).
    • Audience-Centric Voice: Writes directly to the individual "you," ensuring the content builds trust and invites replies.

    Why developers and creators love it

    Unlike standard prompts, this skill enforces specific newsletter writing principles, such as varying sentence length for rhythm and ensuring white space for readability. It’s perfect for Substack authors, SaaS founders, and professional consultants who need to maintain a consistent mailing schedule without the writer's block.

    • Requires manual input of audience details for best results.
    • Does not connect directly to ESP APIs (e.g., Mailchimp or Beehiiv).
    • Best for text: does not generate images.

    How to use

    1. 1

      Connect your agent to the Agensi MCP

      Copy the prompt and paste it into Claude, ChatGPT, Cursor or any agent that supports MCP. It sets up the connection for you. Manual setup

    2. 2

      Sign in to Agensi

      Your agent shows a sign-in link. Sign in and click Allow.

    3. 3

      Ask for what you need

      Your agent loads this skill and uses it on your task. It always asks before any payment.

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    Listed4 months ago

    What's inside

    Frequently Asked Questions

    This skill takes your raw ideas or notes and applies professional copywriting principles to create high-performing newsletter issues. It solves the problem of generic AI writing by focusing on engagement, readability, and specific formats like thought leadership essays or curated digests.

    The skill is designed to work with most popular AI agent platforms and chat-based models. As long as your agent supports structured skill inputs or custom instructions, you can easily integrate Newsletter Engine into your workflow.

    You will receive the proprietary logic and specialized instructions required to power the skill, along with a deployment guide. This includes specific configuration templates for different newsletter formats and subject line strategies.

    Setup is straightforward: simply import the provided configuration files or instructions into your preferred AI agent environment. Within minutes, you can begin feeding the agent notes to generate production-ready email drafts.

    While Newsletter Engine is highly effective out of the box, it is designed to be flexible. You can easily layer your own brand voice or specific audience personas on top of the skill’s core copywriting framework.

    Yes, buyers receive lifetime access to any future refinements or version updates. This ensures your newsletter strategy stays current with the latest email marketing trends and AI model improvements.