If you use Cursor, Claude Desktop, or Cline daily, you have probably watched your rate limits evaporate because of a single runtime crash. A Next.js build fails or a Python script panics, and your terminal vomits 500 lines of stack traces. The LLM eagerly ingests all 45,000 tokens of internal node_modules machinery, webpack bundles, and event loop frames. You just paid $0.15 for an AI model to read code it can't edit, your prompt cache is wiped, and y...