I created managed Skills Marketplace for MCPBundler, but it also suitable for Claude Code/ Codex and other Ai tools, you can check it out on GitHub or browse here.
You MUST use this before any creative work – creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
Manage local Obsidian vaults and markdown notes. Use when Codex needs to connect to local Obsidian vaults, register vault paths, or create/edit/refactor/search notes, frontmatter, links, tags, and attachments within a vault.
Transform project descriptions and feature requests into comprehensive specifications and actionable task lists. Use when the user wants to: (1) Create a specification from a project/feature description, (2) Generate a detailed plan with task breakdown, (3) Clarify requirements before implementation, (4) Convert ideas into structured development plans with progress tracking. Works with or without existing codebase files.
Manage tasks, projects, areas, headings, and tags in the Things 3 macOS app via a local CLI (list Inbox/Today/Upcoming/Anytime/Someday/Logbook, search, create/update/complete/cancel items, open items in Things). Use when Codex needs to manage Things 3 on macOS.
Read X/Twitter bookmarks using the bird CLI, verify the active account via `bird whoami`, and return bookmarks as JSON. Use when the user asks to list, search, summarize, or export X bookmarks, or when you must validate the active X account before fetching bookmarks.