How to correctly designate an aggregator of articles for search engines?

Question

Search Engine Optimization

Good afternoon.
I want to write a small service for collecting technical articles from various sources. Take them from RSS or by simple parsing if the author does not have RSS. The goal is not to promote the site at the expense of someone else's content, but to make it possible (both for yourself and for others) to centrally monitor blog updates.
It's like an RSS aggregator, but it also receives data from sites where there is no RSS. Plus, automatic binding of material to tags and the ability to create a personal RSS feed for yourself by choosing interesting tags.
Actually there are a couple of questions about this. Can you suggest what would be the best way?
1. The web interface has a feed of posts (title, author, tags and a short description). Do I need to pull the full version of the post and add a link to the original to it, or is it enough to immediately indicate the link to the original site after the preview? On the one hand, it is more convenient for a person to watch everything in one place, on the other hand, in this way, as I understand it, an obstacle is created for the blogs of the authors themselves. I'm not good at SEO, can someone explain?
2. How can you not get in the ass from search engines if there is no original content? How can I explain to them that the material is not mine, but at the same time not to fly away to the ban?

Answer 1

1. It is better to put links to the full version as a redirect, and not to pull to yourself, because there may be copyright claims, and in general, the authors will be unhappy. As for reading everything in one place - there is feedly.com for this
2. You can add a couple of paragraphs of unique descriptions on the main, tag and category pages. And what difference does it make whether it will be banned or not, in any case, this type of resource will not attract a lot of traffic from the search.