save-usage

// Auto-detect task complexity for OpenAI oAuth models (gpt-5.1-codex-mini + gpt-5.3-codex). Route only safe/negligible tasks to gpt-5.1-codex-mini. Use gpt-5.3-codex for anything executed, uncertain, or high-impact. RULES: Classify first. Default model: gpt-5.3-codex. Use gpt-5.1-codex-mini ONLY for s