A hostile work environment claim requires unwelcome conduct based on a protected trait that is severe or pervasive enough to alter the conditions of the victim's employment and create an abusive working environment. Courts apply both an objective test, whether a reasonable person in the plaintiff's position would find the environment hostile, and a subjective test, whether the plaintiff actually perceived it that way.

Courts weigh the totality of the circumstances: frequency of the conduct, its severity, whether it was physically threatening or humiliating versus merely offensive, and whether it unreasonably interfered with work performance. A single incident can be actionable if severe enough, such as a physical assault, but isolated offensive remarks or teasing generally fall short of the standard, since Title VII is not a general civility code.

Employer liability for supervisor harassment differs from liability for coworker or third-party harassment, and turns on whether the harassment resulted in a tangible employment action and whether the employer had an effective anti-harassment policy and complaint procedure. In Juricratic, the severity, pervasiveness, and employer-response dials are modeled separately, since a simulation that only tracks one composite harassment score would obscure that a strong policy-and-response record can meaningfully limit exposure even where individual incidents were serious.

Litigators build the record incident by incident, documenting frequency and severity through contemporaneous complaints, witness statements, and any internal investigation file, since the totality-of-circumstances test rewards a thorough factual timeline over a single dramatic allegation. Defense counsel focuses heavily on the employer's complaint procedure and response, since a prompt and effective corrective action can defeat liability even where individual incidents were serious.