Guide

Tips and Tricks
Press "Enter" after typing a tag to input. When done correctly, it's appearance should change #like so

For more results per page, use #perpage:{integer}
64 tiles is the recommended maximum.

Very similar or inferior versions of media are hidden from search, but can be discovered through superior versions or from other media in its set. cuoqet.secret.graphics also hides cover images and similar ancillary media for ease of browsing.
Advanced Filters
Use ~{partial tag} for partial searches, -{negated tag} for negation, and combined using -~{negated partial tag}

When used together they can create some useful, specific filters.
~name:Returns media containing no named subjects
~source:Returns media involving no significant source material
~set:Only returns media that are part of a set. Useful for discovering media not displayed in search results
~superior of:~inferior of:Returns the most superior media of sets containing inferior versions
~next:~prev:Similarly, returns the first media in a sequential set. Useful for discovering comic and manga sets
~cover:Only returns media with a cover image. Useful since the contents within are not typically visible in search results
Disambiguation
For the time being, cosplay and species names are tagged using #name:{subject name} with no disambiguation.

An unnamed Elephante Neopet cosplaying Lal'C from Gunbuster will have the tags:
#name:elephante#name:lalc#source:diebuster#source:gunbuster#source:neopets

Common disambiguation tags include #name:clone ayu, #name:clone chance, and #name:blood con
Gachapon
The Gachapon does not have any stickers yet and serves no purpose for the time being.

You can visit #name:genie anyway if you really feel like it, however !
Basic tags
{tag}#catReturns media which have the specified tag
-{tag}#dogPrefixing a tag with "-" will omit media which have that tag
#author:{author name or handle}Used to specify the creator of a medium
#name:{subject name}Used to identify a character or person being portrayed
#source:{source title}Used to specify the source material where the content originated
#title:{title}Used to specify the title of an individual work
#filename:{filename}Used to specify the original filename of a medium
Pagination
#sort:{creation | upload | color | size | likes | random}Choose how the results are sorted.
#order:{asc | desc}Choose how the results are ordered.
#perpage:{integer}Change the number of results per page.
Advanced help
~{partial tag}~{partial tag}Prefixing a partial tag with "~" will return media which have tags containing that partial tag
-~{partial tag}~{partial tag}Prefixing a partial tag with "-~" will omit media which have tags containing that partial tag
#group:{group name}Returns media which have the specified group protection and which you also have all permissions to search for

You may specify multiple group: or -group: tags to search for media with specific group permissions
A number of date formats can be parsed correctly, but it's recommended to use Atom format (Y-m-d\TH:i:s\Z) e.g. 2006-01-07T13:53:10Z
#uploaded after:{date string}Returns media uploaded after the specified date
#uploaded before:{date string}Returns media uploaded before the specified date
#created after:{date string}Returns media created after the specified date
#created before:{date string}Returns media created before the specified date
#category:{medium category}Returns only media which are in the specified category

Specifying multiple category: tags will return media which match any of them, but specifying multiple -category: tags will exclude them all to narrow your search
#mimetype:{medium mimetype}Returns only media which have the specified MIME type

Specifying multiple mimetype: tags will return media which match any of them, but specifying multiple -mimetype: tags will exclude them all to narrow your search
#orientation:{landscape | portrait}Returns visual media with the specified ascpect ratio

This will omit any media that don't have dimensions (as well as omitting media which haven't been analyzed)
#smaller than:{bytesize}Returns media smaller than a filesize
#larger than:{bytesize}Returns media larger than a filesize
#data{1-6} less than:{integer}Returns media with data properties less than a specified value
#data{1-6} more than:{integer}Returns media with data properties more than a specified value
#protection:{none | groups | private}Returns media of a protection type (or -protection:{protection type} to exclude media of a protection type)