Control and inspect a real local Chromium-family browser through the bro MCP server and WebExtension. Use when Codex needs logged-in browser access, current tab inspection, page text or link extraction, multi-URL background extraction, click/fill/read flows, or browser console and network diagnostics. Do not use for ordinary web lookup when generic web browsing is sufficient.
Use when Codex needs to work with Mimestream mail on this Mac: investigate local mail, search receipts or support threads, identify actual recipients from sent mail, read selected messages, draft or reply in Mimestream, visually verify compose windows, or perform explicit mailbox actions. Prefer Gmail API skills for server-authoritative send/delivery/label/thread state that does not depend on Mimestream.
Use when Codex needs to control or inspect the user's logged-in Helium browser through the locally installed OpenBrowserMCP extension. Trigger for requests about OpenBrowserMCP, Helium tabs, reading current browser tabs, browser MCP, openbrowsermcp, webpage interaction, or testing this local browser stack.
Build and run evidence-based learning workflows. Use when Codex needs to create or continue a study workspace, collect and convert learning materials, design goals, teach from sources, quiz the user, score answers, track progress, maintain an error log, or run spaced review for subjects such as courses, books, technical topics, exams, or career prep.
Use when Codex needs to access Monarch Money through the local mon CLI for auth status, accounts, transactions, custom GraphQL queries, or diagnostics while keeping local tokens private.
Extract text, Markdown, tables, formulas, and structured content from PDFs, scanned documents, screenshots, and images using the best available local or cloud OCR route. Use when Codex needs OCR, PDF text-layer extraction, MinerU local or official API parsing, VLM document parsing, table/formula extraction, scanned PDF handling, or when deciding whether a PDF should be read directly, OCRed, parsed by MinerU, or uploaded to a cloud API.
Use when the user wants to read, search, inspect, back up, export, or troubleshoot local macOS Telegram chat history with tg. Keep the user's chat data local and guide them through the shortest working tg command flow.
Use when Codex needs to work with 1Password or the `op` CLI: reading a specific secret reference, injecting API keys or credentials into local commands, using `op run` or `op inject`, checking 1Password CLI auth state, handling `API_CREDENTIAL` items, creating or updating 1Password items, or deciding how to keep secrets out of code, logs, shell history, issues, PRs, and final responses.