Navigating the documentation of the SCP Foundation requires a firm grasp of how anomalies are cataloged, classified, and suppressed. When a new anomalous object, entity, or phenomenon is brought to a secure facility, understanding its designated classifications dictates everything from the physical materials used for its cell to the security clearance required to view its file.
The system relies on structured metrics to measure threat levels, resource allocation, and containment difficulty. Misunderstanding these tiering systems leads directly to catastrophic containment breaches, security failures, and massive loss of life across Foundation sites.
Primary Object Classes
Every standard file begins with an Object Class. This label doesn't measure how dangerous an anomaly is; it measures how difficult and resource-intensive it is to keep securely locked away.
- Safe: These anomalies are reliably and easily contained. This usually means the Foundation understands the object well enough that keeping it secure doesn't drain major resources, or it requires a specific, conscious activation trigger. A Safe classification doesn't mean harmless—an object that instantly kills anyone who touches it can still be Safe, provided it sits quietly in a lead box until handled.
- Euclid: These anomalies are insufficiently understood or inherently unpredictable. Containment isn't always reliable. If an object is autonomous, sentient, or sapient, it defaults to Euclid because independent thought introduces variables the Foundation can't entirely predict.
- Keter: These anomalies are exceedingly difficult to contain consistently. Procedures are complex and extensive, and the Foundation often lacks the technology or complete understanding to lock them down permanently. Keter objects frequently threaten massive security failures.
- Thaumiel: These rare anomalies are secrets of the highest order. The Foundation uses Thaumiel-class entities to contain other SCPs or stabilize reality itself. Their existence is restricted to senior oversight.
Secondary and Esoteric Classes
Beyond the primary four, anomalies that defy standard boxes receive specialized or narrative-driven tags. Authors use these sparingly to emphasize unique narrative stakes.
- Apollyon: Uncontainable anomalies that actively threaten an imminent end-of-world scenario. The Foundation shifts from long-term containment to frantic damage mitigation.
- Archon: Anomalies that could theoretically be contained, but are intentionally left uncontained because locking them away would cause worse systemic collapse than leaving them alone.
- Neutralized: Former anomalies that have been destroyed, disabled, or lost their anomalous properties entirely.
- Explained: Phenomena fully understood by mainstream science, often resulting in the file being reclassified with an
-EXsuffix.
Evaluating Containment Risks
Containment risks dictate the operational hazards personnel face during day-to-day interactions. Modern Foundation formatting incorporates secondary metrics alongside object classes to measure actual danger and disruption potential.
Disruption Classes
Disruption tiers measure how badly an anomaly can disrupt a site or baseline reality if its containment fails.
- Dark: Minimal to zero effect on day-to-day facility operations.
- Vlam: Effects have the potential to spread and are difficult to revert or neutralize.
- Keneq: Causes permanent alterations that spread effectively if monitoring lapses.
- Ekhi: Capable of wide-scale alterations to facilities or the external world with few ways to reverse the damage.
Risk Classes
Risk classes evaluate the direct physiological or psychological danger an object poses to nearby personnel. A Safe-class object can carry a Critical risk class if looking at it causes immediate organ failure, even if the object never moves out of its locker. Ratings scale from Notice (negligible hazard) up to Critical (severe, often fatal hazard exceeding standard protection).
Standard Containment Protocols
When designing containment procedures, researchers rely on a structured hierarchy of physical and systemic barriers.
- Physical Isolation: Multi-layered material barriers, ranging from standard reinforced steel to lead-lined chambers, Faraday cages, or non-reflective observation glass.
- Environmental Control: Regulating ambient temperature, light exposure, humidity, or electromagnetic fields to prevent anomalous triggers.
- Automated Security Interlocks: Deploying automated defense systems, remote drone monitoring, and pneumatic blast doors that seal off sectors instantly during a breach.
- Information Suppression: Controlling data access via strict security clearances (Levels 1 through 5) to prevent memetic contamination or widespread panic among lower-tier staff.
Frequently Asked Questions
Does a Keter-class classification mean an object is hyper-aggressive?
No. Keter simply means it is extremely difficult or costly to keep contained. An inanimate object that randomly teleports to random coordinates across the globe every few hours would be classified as Keter because you cannot reliably lock it in one place, even if it has no desire to harm humans.
Why are sentient anomalies automatically classed as Euclid?
Sapience and autonomy introduce unpredictability. Even if an entity is completely docile and cooperative, the fact that it can change its mind, make independent choices, or develop unknown motivations means standard, static containment protocols can fail without warning.
What is the difference between an Archon and a Safe object?
Safe objects are successfully contained because containment is straightforward. Archon objects, by contrast, are technically capable of being locked away, but the Foundation chooses not to contain them because doing so would trigger worse consequences for consensus reality.
How do security clearances restrict access to containment files?
Staff are assigned clearances from Level 0 (non-essential) to Level 4 (Top Secret) or Level 5 (O5 Council). This ensures researchers only view data relevant to their specific projects, minimizing psychological hazards, memetic exposure, and insider security breaches.
