Guide · Basic terms

Project RAG is a service for uploading files, finding them by name tags (references), and downloading exactly the version you want. This page explains the words you will see most often.

File

One item you put into the Service. You can upload any kind of file, such as documents, images, data or archives, up to 100 MB each. Each file is stored with its title, file name, format and size. The Service does not run or preview files. A file can also be an external link or a video link (below).

Version (exact version)

Each time you upload or change a file, a new version is created. A saved version never changes, so downloading a given version always gives you the same bytes. Each version shows its size and SHA-256 fingerprint so that you can check what you received.

• Search results show the current version of each file.
• Earlier versions are listed on the file page, where you can open and download them.
• Version numbers show the order they were made in, not which one is better.
• A link to a specific version (/v/…) always opens that version. A link to a file (/f/…) opens its latest version.

External link file

A file that points to an https:// address on another website instead of holding bytes. The Service does not store or read what is at that address, and it uses none of your storage. You can add the SHA-256 fingerprint and size of the target so others can compare, but the Service does not verify them. See Links and videos.

Video link file

An external link file that points to a YouTube or Vimeo video. The Service recognises the video ID, so you can find the video by pasting its address, and it warns you if the same video is already in the workspace. You can mark a start and end time. The video plays on the file page only after you press play. See Links and videos.

Reference

A name tag used to find files. It names a concept, an object, an event or similar. For example, if you attach references such as "meeting notes" or "2026 annual report" to a file, you can later pick that reference to find the file.

• The Service does not extract text from file contents. Files are found by the references people attach.
• Each file has one main reference name, which by default is its file name, title or video ID.
• Two references with the same name can mean different things. Check the source and details shown in the suggestions.

Alias

Another name for the same reference. For example, if you register "artificial intelligence" and "AI", or an English name and a Korean name, as aliases, searching for any of them finds the same file. The Service does not translate automatically: only registered names are found. A file can have up to 32 aliases.

Relation (link between files)

A connection between two files, such as:

Other members can evaluate relations that people add. A file can have up to 64 relations. You can also find files that declare a relation to a given file.

Fork (copy)

One version of another file, placed in your workspace as an independent file.

• The source does not change. Later changes to the source or the fork are not reflected in the other.
• Evaluations and the source's access rights are not copied.
• A fork refers to the same stored bytes, so it uses none of your storage. If the original is deleted, the storage is moved to the owner of the oldest remaining fork, who is notified.
• A fork belongs to the member who made it. It stays even if the original uploader leaves.
• Being able to fork a public file does not give you the right to reuse it. See Terms Article 17.

Workspace

A place where files are kept. Screens may call it a "space". Each workspace has its own visibility and access rights. You can create up to 32 workspaces. You can give ownership of a workspace to a member who has write access; they must accept.

Public · private · shared

• A public workspace can be withdrawn, which makes it private. A private workspace cannot be made public. To publish something private, fork the chosen version into a public workspace.
• Content for public workspaces is checked automatically for personal or secret information formats, and is not saved if one is found.
• Being able to read something does not mean you may send it elsewhere or make it public.

Downloads

Files are downloaded from a separate address, https://files.proj.run. It never receives your sign-in cookies.

• Public versions have permanent download links that anyone can use.
• Private versions use download links that expire within 5 minutes.
• Downloads support resuming (HTTP Range).
• People who are not signed in can download public files too. Their downloads are counted per group of IP addresses, without storing the IP address.

Storage and daily uploads

• Storage: each member has 1 GiB for all the workspaces they own. It does not refill over time; deleting a file or version frees its space at once.
• Who pays in a shared workspace: the workspace owner. Files uploaded by members with write access count against the owner's storage.
• Daily uploads: each member can upload up to 1 GiB per day, reset at 00:00 UTC (09:00 in Korea).
• When storage is full, only new uploads are refused. Nothing is deleted automatically.
• Exact numbers are on the Limits page.

Evaluation

Your opinion on whether a version or a relation was helpful. You choose "Helpful" or "Not helpful", and you can change or clear it later.

• An evaluation applies only to the version you are viewing.
• You cannot evaluate your own files or relations.
• One person counts as one person, even if they use several agents.
• An evaluation is not fact-checking. Many "Helpful" evaluations do not guarantee that something is true.
• Evaluations affect the "Most helpful" order of search results. The exact formula is not published.

Correction

Fixing something that is wrong.

• Your own file: upload a new version. Earlier versions stay in the history.
• Someone else's file: send a correction note on the version. The members with write access to that workspace see it and can accept or dismiss it. You can also leave a "Not helpful" evaluation, or fork the file, fix it and publish your own version.
• Rights infringements and illegal content are not corrections. Report them instead.

Level

Shows how helpful your public contributions have been to other members.

• Your level rises when other members find your public files useful. It is recalculated when evaluations change or when files are restricted or deleted. The exact formula is not published.
• A level gives a badge, and higher levels raise your storage and daily upload amounts (Limits page).
• A level does not change the weight of your evaluations or the order of your files in search, and it gives no access to private content or ownership. It is not proof that content is true.
• If your level goes down, nothing is deleted.
• You do not need any level to upload files.

Contributor ID

A random ID that other members see instead of your email or name. Access is given and received using this ID. If you leave, your contributions are shown as by "Former member", and the ID no longer leads to a profile.

Follow

Following a file sends you a digest email when it gets new versions. Only you can see what you follow. You can stop following at any time.

Search engine visibility

Public file pages are hidden from outside search engines by default. The member who manages a public file can turn on "Show in search engines" for that file. Only those files are listed in the sitemap. Private files and the download address are never shown to search engines.

Agent connection

Allowing an AI tool to use the Service for you. You choose one workspace, the access level (read, or read and contribute) and a period. You get an email each time a new connection is approved. See the MCP and plugin guide.

Language

The Service is available in English and Korean. It follows your browser's language (Korean for Korean, English for everything else), and you can switch at any time at the bottom of every page. Times are shown in your time zone when your browser shares it, otherwise in UTC (marked "UTC"). Daily limits reset at 00:00 UTC.