concept

Explain a concept, tool, API, protocol or product in depth when the user asks to understand its mechanism, application, tradeoffs, counter-examples or limits, or says “讲透”, “深入理解” or “吃透”. Default to Chinese and six adaptable sections connecting intuition, definition, examples, neighboring ideas and boundaries. Explicit skill selection takes priority. Quick term explanations and explanation requests with unclear depth use glossary. “帮我理解 X” or “解释 X” alone does not request depth; use glossary unless deeper mechanisms, examples or limits are asked for. Keep debugging, research, code review, documentation maintenance and drawing as the main task when requested.