Per 
A memetic, precognitive video that shows possible disaster in your future, and compels you to act against it.
Imagine you receive a desktop pop-up while working one day. Curious, you entertain it, and see a video prompt? You prompt it to play. The video is a messy 'found-footage'-esque compilation of what appears to be dangerous events taking place, escalating from something as minor as a convenience store robbery to the death of a family member. The timestamps in the corners show a date in the future. And, most disturbingly enough, you are in the video, behind the 'camera', despite you not remembering any of this.
After a clip of your own house exploding, suddenly the video changes to one of 'you'. As in, you, with the same current outfit, in the same room - except, this time, 'you' are talking back to yourself. Desperately pleading, saying that "you can change the future," or something like that. The video cuts to the 'you' in the video standing, saying that you can make 'A Better Future'. And then it ends.
You wonder what that was all about, and to be honest, you're slightly creeped out. But unbeknownst to you, the things that happen in that video are things that are about to happen in the future. The clock is ticking, and you play an important part in preventing - or allowing - this future iteration to pass.
Suddenly, one day, a robbery commences. You recall the video, and feel an urge to act. To prevent that future from becoming true.
This is SCP-XXXX - this is "A Better Future."
There are three main components to this anomaly: SCP-XXXX-1, which is a video; the devices it is housed on, SCP-XXXX-2 (and SCP-XXXX-2-X); and the target observer, SCP-XXXX-Δ (Delta, for change).
SCP-XXXX-1 is a video file that randomly appears as a pop-up on devices with SCP-XXXX-2 attached. When the pop-up is interacted with, a video plays. The video appears to be in the style of found footage, and depicts a series of increasingly escalating disasters. Most of the time, these disasters are relevant to the personal or professional lives of the target observer, and the target observer (XXXX-Δ) is always the subject 'recording' these events. How the footage is recorded is unknown, and the timestamps always note future dates. The video will always end with a segment in which a version of the target observer, depicted as wearing the same clothes and being in the same room, attempts to plead with the present, real-life observer, telling him/her that they can change the future.
SCP-XXXX-2 is a regular rectangular USB-3 Sandisk portable hard drive, with the words "A Better Future" engraved onto one face. When SCP-XXXX-2 is attached to a computer, laptop, or electronic device with video and audio display capabilities, that device becomes the newest instance of SCP-XXXX-2-X (labeled from one and counting up, for documentation purposes). Pop-ups containing SCP-XXXX-1 instances will now appear on the screen at seemingly random moments. The SCP-XXXX-1 instances will always appear, to date, before the events depicted within occur. Detaching XXXX-2 from the device will stop instances from appearing.
The events in the video invariably occur in the future, regardless of whether the Foundation, XXXX-Δ, or anyone else watching the video, acts to actively disturb factors that play an essential part in the depicted events. If this is not the case, then the depicted event will occur on the timestamped date (if one is available). XXXX-Δ will always be nearby, and they will proceed to attempt to stop the event from occurring - success rates vary. If factors are changed, then the event will become unpredictable, and the likelihood of XXXX-Δ stopping it decreases drastically.
Key narrative elements I've planned: the Foundation discovers SCP-XXXX-2 after the death of a local civilian (widely regarded as a local hero) who died thwarting a Keter-level breach. They discover SCP-XXXX-1, and its effects towards XXXX-Δ, when a D-Class used as a Δ test subject manages to save an Agent's life during a breach. Research into SCP-XXXX's original owner suggests that it once occupied the form of a book that would change to fit the reader, suggesting that its medium is not as locked as it is. One day, a Junior Researcher on XXXX becomes the new Δ when the contents of the video that plays compels them to .zip and upload the contents of XXXX-2 to the wider SCP network. Foundation security and RAISA stop him from doing so, but they are too late. The Junior Researcher, however, refuses to say what will happen, and now they wonder; what exactly did we let occur?
After this near-breach event, they stop testing, but XXXX-2 has already spread through the SCP network. RAISA blocks all new instances that appear by disabling pop-ups on work terminals.
O5 ponders changing the classification to Thaumiel and allowing it to spread to high-level Foundation personnel in order to help cull threats to the Foundation.
At the end of the article, a new message pops up for the in-universe researcher currently reading the file. Opening it, they see that… it's a new instance of XXXX. Has XXXX changed mediums once again? RAISA blocks the video, but text emerges below it, pleading for the researcher to continue its spread to the wider world. And then it asks - what will you do to make a better future?
Looking for advice! I don't think this is similar to any other anomalies I've read, but I can always modify the core idea of the video and the observer if anything's too similar.
Device that 'quantifies' how much you can change the future.
SCP-XXXX, The Temporal Autonomy Quantifier (TAQ Device)
Class: Thaumiel Neutralized
The focus of this SCP is less the object, and more the world-building and the human interaction.
…was a handheld device, similar in shape to a handheld barcode scanner, except with a LED numeric display facing the user. SCP-XXXX had no identification of origin whatsoever other than the words "TEMPORAL AUTONOMY QUANTIFIER" etched on the left side of the handle. It had a trigger on the handle, and when pointed at a human and activated, it would show a number on the display ranging from 0.0000000000 (ten decimals) to 1.0000000000. A red button on its right side with the word [RECALIBRATE] was also present.
How it operates is simple: first, pick an object or a depiction of an event, then hold RECALIBRATE to scan it. Afterwards, point it at a person and press the trigger to display their 'Temporal Autonomy' value. The theory is that the device scans the amount of future divergent timelines caused in part or fully by the scanned person - a hypothetical 1.0000000000 value would mean they have absolute control over everything that happens, and a hypothetical 0.0000000000 value would mean that only one inevitable timeline is possible.
…with a researcher team puzzling over what the values mean. They have an unverifiable theory regarding quantifying 'free will'. So, they decide to do a field experiment with an MTF team. They tag along on an SCP investigation and retrieval mission. The MTF captain constantly scores a relatively high mark. But then the value drops - the Captain has made a faulty choice - and retrieval goes wrong and the MTF captain dies. The mission seems lost until they scan the MTF member ('Janet') holding an anti-materiel rifle who scores an incredibly high mark. They deduce that the SCP is vulnerable to ballistics, and they manage to neutralize it.
Afterwards, SCP-XXXX is jury-rigged onto a makeshift helmet with HUD display while the research team figures out how to replicate SCP-XXXX's mechanism. Missions go on incredibly well as Janet's decisions are guided by constant input on how it affects the mission. Until a containment breach against a highly dangerous Keter. The display keeps on going down, and down, and down, and Janet become more nervous as her team drop one by one. Finally, it hits 0.0000000011 and Janet gives up, until her longtime MTF partner gives them the 'fuck that helmet' pep talk. They rip SCP-XXXX off and manage to trigger the re-containment procedures.
Post-event analysis of the helmet indicates that the moment they threw away SCP-XXXX the value changed to 0.0999999786, an all-time high. Unfortunately, SCP-XXXX was shattered and its effects neutralized. Inside, however, they discover a company name, which they trace to a lab in France. Inside are more devices of a temporal nature. What other adventures await…?
I want this to be the beginning of a Research Team x MTF Squad canon dealing with timey-wimey things. Feedback appreciated!
