Look at what your coding agents actually pull into context. For a single task, the agent greps the repo, runs a broad vector search, and loads dozens of files and chunks that merely resemble the request into the window before it writes a line. You pay for that twice. Once in tokens, for context the model never uses and once in precision, because the few facts that matter are now buried in lookalike text, and a window crowded with noise makes the model reason worse. The reflex may be to buy a lon...