Spectra archive
Skill PsychQuant/che-ical-mcp/.agents/skills/spectra-archive
macOS Calendar & Reminders MCP server (29 tools) — native Swift EventKit for Claude Desktop & Code. Events + reminders CRUD, recurring, batch ops, conflict & duplicate detection, per-event timezone, undo/redo, #tags, --cli mode, SwiftUI --setup TCC flow, --self-update. Developer-ID signed + notarized for macOS 26. iCloud/Google/Exchange.From the repository description
npx -y skills add PsychQuant/che-ical-mcp --skill spectra-archiveAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.