> ## Documentation Index
> Fetch the complete documentation index at: https://docs.curation.space/llms.txt
> Use this file to discover all available pages before exploring further.

# What is a Link?

> A Link is Curation Space's one shared record of a web address; adding it to a curation makes your own placement, with your note and custom title or author.

A Link is Curation Space's one shared record of a web address. Every curator who adds the same address shares one Link, with the same title, author, and content for everyone, and adding it to a curation makes your own placement of it.

## What's the difference between a Link and a link in my curation?

The Link is shared; the placement is yours. Your placement in a curation holds what you add: your note, a custom title, a custom author, and its position.

Removing a link from a curation removes only that placement. The Link and its other placements, in your curations or anyone else's, stay as they are.

## Can I change a link's title or author?

Yes, for one placement. In your curation, point at the link and choose the pencil beside its title, or click its author, then type and press Enter. **•••** on the link offers **Edit title**, **Edit author**, and a note, too. On a phone, choose **Edit curation** in the toolbar first. While you edit, Curation Space says the change applies only in this curation.

| Field | Limit |
| - | - |
| Custom title | 500 characters |
| Custom author | 500 characters |
| Annotation | 2,000 characters |

A custom title or author changes only this placement, not the same link in your other curations. **Use original title** or **Use original author** in **•••** clears it, as does saving it empty, and the placement shows the Link's current title or author again.

## Where do the title and author come from?

Curation Space reads the link when it's first added and fills in its title, author, and read time. Until that first reading, the link shows its address as its title. You can't edit the shared Link or tell Curation Space how to read it; use a custom title or author for your placement instead.

## What if the title never fills in?

Curation Space keeps trying. A Link missing an essential fact, such as its title or a video's running time, is read again a minute later, then at doubling intervals up to once every 7 days, until a reading finds it. Each reading keeps what earlier ones found. Adding a link never fails because it couldn't be read.

## Which sites does it read well?

These have their own readers:

* **Video:** YouTube, Vimeo, TikTok, Twitch, Loom, TED
* **Podcasts:** Spotify, Apple Podcasts, Overcast, Pocket Casts
* **Code:** GitHub, npm, PyPI, crates.io, Hugging Face
* **Research:** arXiv, DOI, PubMed Central
* **Social:** X, Bluesky, Threads, Mastodon, Reddit, Hacker News, Stack Exchange
* **Writing:** Substack, Medium, Wikipedia
* **Stores:** Amazon, Goodreads, Steam, App Store

PDFs and other documents are converted to text.

## Are two addresses for the same page one Link?

Only when Curation Space can be sure. Two addresses become one Link when they're the same address once written in a standard form, or when the site's own identifier, such as a video's ID, shows they're the same item. A redirect, or a page naming another address as its original, is recorded but never merges two Links.

## What's a link page?

Each Link has its own page at `curation.space/link/{id}`, showing what curators said about it and the public curations it's in. Press **←** and **→** to step through the notes.

## How do I remove a link?

Choose **•••** on it, then **Remove from** the curation. It's removed at once, with no confirmation or undo. Adding it again puts it at the curation’s chosen **Bottom** or **Top**, without your old note. Deliveries already sent still contain it.

## Can my agent read what's on the page?

Yes, in two ways. Your agent can read the retained text of links in a curation over the [MCP server](https://docs.curation.space/mcp-server.md#can-my-agent-read-the-links-in-a-curation). It can also read the content of links delivered to you with `get_delivery_content`. See [Give your agent a curation](https://docs.curation.space/things-you-can-do/give-your-agent-a-curation.md#can-my-agent-read-the-full-text-of-links).


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