What is calendar-sync?
calendar-sync is a Claude Code mod by Plagemes that reads your calendar (private iCal link) so notifications and questions respect meetings and time off, and suggests slots for long jobs. It is listed under Games and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | Plagemes |
| Repository | Plagemes/claude-mods |
| Popularity | 1 GitHub stars |
| Category | Games |
| Security | Review before installing (64/100) |
| Rank | #2,055 of 5,272 Claude Code mods; #45 in Games |
| License | MIT |
| Last commit | 2026-10-15 |
| Hooks | 3 events |
| Sees | only the events it hooks |
| Draws on | Pane |
Is calendar-sync safe to install?
calendar-sync scores 64/100 on the MCPMods security check: Review before installing. Things to review: sends data over the network; writes files or config; reads environment variables. It passed 5 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| Sends data over the network | Review |
| Starts no processes | Pass |
| Writes files or config | Review |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.read | reads files |
$.fs.stat | reads files |
$.fs.write | writes files |
$.http.fetch | network requests |
$.mods.hello | |
$.mods.publish | |
$.mods.registerTab | |
$.mods.setMode | |
$.mods.setPresence | |
$.mods.share | |
$.mods.showTab | |
$.session.id | |
$.state.get | |
$.state.set | |
$.ui.invalidate | draws interface |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.status | draws interface |
How do I install calendar-sync?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/Plagemes/claude-mods claude plugin validate ./claude-mods/mods/calendar-sync
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add Plagemes/claude-mods && claude plugin install calendar-sync@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs calendar-sync for you:
Install the "calendar-sync" Claude Code mod from https://github.com/Plagemes/claude-mods/tree/main/mods/calendar-sync. Run claude plugin validate on it first and show me what it can access before you enable it.
More from Plagemes/claude-mods
This repository has at least 9 Claude Code mods on MCPMods.
- a11y-guard: Flags accessibility misses as Claude writes UI: images without alt, unlabeled buttons, clickable divs. (Low risk)
- achievements: Unlock achievements as you work: first commit, 100 green test runs, a week-long streak and more. (Low risk)
- activity-heatmap: A heat map of when you use Claude Code, by hour and weekday. (Low risk)
- agent-presets: Ready-made subagents for focused jobs: debugger, test writer, doc writer and migrator. (Low risk)
- audit-trail: Writes every action Claude takes to an append-only JSONL audit log. (Review before installing)
- auto-checkpoint: Snapshots your work tree before every editing turn and lets you /rollback to any checkpoint. (Low risk)
- auto-format: Formats every file Claude edits with the right formatter for its language. (Low risk)
- autopilot: Give it a goal and success criteria; it plans, delegates, verifies and retries until the criteria pass or it needs you. (High risk)