Codex Web Search
Explicit codex exec (OpenAI web_search) invocation. Use ONLY when the user explicitly asks for codex-based search (e.g., `/codex-web-search`, "codex で検索", "ChatGPT の検索で") or when the built-in WebSearch fails and a fallback is needed. Default web searches should use the built-in WebSearch / WebFetch tools.
Grok X Search
Search and analyze fresh X/Twitter discourse through OpenRouter using xAI Grok models, with automatic routing between `x-ai/grok-4.1-fast` and `x-ai/grok-4.20-multi-agent`, native X search filters, and X-focused prompt shaping. Use when Codex needs current information from X rather than ordinary web pages, especially for requests like “X で何と言われているか調べて”, “recent reactions on X”, handle-scoped sear…
Pdf Lecture Notes
Generate exam-ready Japanese lecture notes (Markdown with LaTeX math) from PDF slides via OpenRouter VLM (Gemini 3 Flash Preview by default). Sends PDFs directly to the API to preserve embedded text and minimize token cost. Use when the user asks to create lecture notes from slides, summarize a PDF for study, convert a lecture PDF into study notes, or OCR a PDF with math formulas.