snow white's stitching up your circuit boards

Witch's left eye is a magical bionic prosthesis with a variety of cool abilities she's built into it! Its features include:

• functioning as a regular eye, of course, capable of simple vision.
• seeing through Crow's eyes, wherever he is.
• taking and providing exact measurements of size or distance (in part to compensate for issues with depth perception).
• infrared and night vision options.
• projection of images or words. Basically she has a minor holograph projector in her skull.
• recording. Witch can record images, audio, and video with her eye and have the results beamed directly into her brain or project them as a hologram. The big thing she uses this for is mapping—if she's traveling an unfamiliar space she sets her eye to record her surroundings, utilizing its ability to measure distances and sizes, to create a basic map of the area (usually something like this).
• analyzation. This is the big one! Witch's eye is able to instantaneously provide a litany of information about things in line of sight she chooses to scan. While the database of information the eye pulls from is vast due to the breadth of her research and that of those who've aided in it, it's still manually curated, so the eye is limited by her own knowledge. It'll grow throughout her time in game. Attempts to scan completely unfamiliar objects or phenomena will not return any useful data beyond the unknown status of it. Please note that scanning of other player characters or their belongings will never be done without player permission, and, thanks to the multiversal nature of the game, it's very easy to have a built-in excuse of "no useful results were returned because the information was too new" for literally anything if necessary.
• Magical analyzation: By scanning magical items or phenomena with her eye, Witch can retrieve information about its ingredients, components, function, and source. This applies to things like psychic or divine powers as well, though these aren't her specialty.
• Technological analyzation: While Witch cannot use her eye to break into a piece of high-level technological equipment's programming, she can break down its basic components and function based on her previous experiences.
• Mundane analyzation: Scanning more regular items will inform Witch that they are not, in fact, magical in nature, and still break them down to more basic components. This allows her to, at a glance, determine the edibility or toxicity of foodstuffs or fauna, figure out what material a structure is made of, and other such uses.
• People (and other living beings): Witch doesn't have much need to break anyone down to basic biological functions, but can, at least, scan a person and receive some information about them: species, vital signs (useful if someone is injured or ill), presence of magic or other abilities on them, and anything generally fucky about their physiology. This is rarely necessary and she doesn't care to snoop, so she doesn't usually scan people.
• Other: While the eye may not be able to provide much useful information on things yet unfamiliar to Witch, it will at least be able to confirm the lack of presence of things or phenomena that she would recognize.