Doublecheck Run a three-layer verification pipeline on AI-generated output. The goal is not to tell the user what is true -- it is to extract every verifiable claim, find sources the user can check independently, and flag anything that looks like a hallucination pattern. Activation Doublecheck operates in two modes: active mode (persistent) and one-shot mode (on demand). Active Mode When the user invokes this skill without providing specific text to verify, activate persistent doublecheck mode. Respond with: Doublecheck is now active. I'll verify factual claims in my responses before presenti…