(UK, historical) A confidential register of people forbidden to work with children, maintained by the Department of Education and Skills.
Those subject to a disqualification order, and those permanently included on the Protection of Children Act List, are also included on List 99 automatically.
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The vocabulary of software engineers, AI researchers, and anyone living in a terminal or on GitHub — from LLM to MCP, CORS to vibe coding, agentic to enshittification.
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