New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Apple Calendar

by hashgraph-online in hashgraph-online/awesome-codex-plugins

Read and create Calendar.app events through a local macOS helper.

Apache-2.0Auto-check passed

Install Apple Calendar

skills CLI
$ npx skills add hashgraph-online/awesome-codex-plugins --skill apple-calendar -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install hashgraph-online/awesome-codex-plugins apple-calendar --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/matk0shub/apple-productivity-mcp/skills/apple-calendar .claude/skills/apple-calendar && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
apple-calendar
GitHub stars
1.3k
Token cost
~1.2k tokens
SKILL.md length
400 words
Files
1
Skills in repo
714
Repo updated
First seen
Licence
Apache-2.0

At a glance

Read and create Calendar.app events through a local macOS helper.

  • Works in 7 steps: Confirm the task is meant for Apple… → Never run Calendar helper commands in… → For daily summaries, start with today or… → …
  • The user wants to inspect Apple Calendar calendars
  • SKILL.md covers Overview, Workflow, Commands and Safety, plus 1 more section
  • Calls python3

What it does

Apple Calendar is an agent skill from hashgraph-online/awesome-codex-plugins. Read and create Calendar.app events through a local macOS helper. Use when the user wants to inspect Apple Calendar calendars, summarize a day, check upcoming events, or create a new Calendar.app event from Codex.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with macOS. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.

When your agent uses it

  • The user wants to inspect Apple Calendar calendars
  • Summarize a day
  • Check upcoming events
  • Create a new Calendar.app event from Codex

Example prompts

  • “/apple-calendar”

Requirements

  • Python 3

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Confirm the task is meant for Apple Calendar on macOS, not Google Calendar or Outlook.
  2. Never run Calendar helper commands in parallel. The helper now serializes access to Calendar.app, and parallel calls only add latency.
  3. For daily summaries, start with today or tomorrow. These default to the configured personal calendars in ../../config.json instead of…
  4. Use agenda or list-events only when you need a specific date window or raw JSON payload.
  5. Normalize relative dates into exact local timestamps before reasoning about conflicts or creating an event.
  6. Prefer add --if-free for new events so overlapping slots are blocked unless the user explicitly wants a conflict.
  7. For changing an existing event, use find-events first when you do not already have the event uid.

What it can do on your machine

Read from SKILL.md and the folder at commit 9e7b281. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Apple Calendar loads about 1.2k tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 400 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~57
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from hashgraph-online/awesome-codex-plugins at commit 9e7b281, republished under its Apache-2.0 licence (© hashgraph-online). 400 words, ~1,207 tokens.

Download SKILL.mdSave it as .claude/skills/apple-calendar/SKILL.md (or your agent's skills folder).
name
apple-calendar
description
Read and create Calendar.app events through a local macOS helper. Use when the user wants to inspect Apple Calendar calendars, summarize a day, check upcoming events, or create a new Calendar.app event from Codex.

Apple Calendar

Overview

Use this skill to work with the local macOS Calendar app through the bundled helper at ../../scripts/apple_calendar.py. The helper now uses an EventKit/Swift backend for data operations. Prefer the quick commands today, tomorrow, agenda, free, and add over lower-level calls unless you need raw JSON or direct lifecycle operations like update-event, delete-event, reminder changes, or .ics export/import.

Workflow

  1. Confirm the task is meant for Apple Calendar on macOS, not Google Calendar or Outlook.
  2. Never run Calendar helper commands in parallel. The helper now serializes access to Calendar.app, and parallel calls only add latency.
  3. For daily summaries, start with today or tomorrow. These default to the configured personal calendars in ../../config.json instead of scanning every subscribed calendar.
  4. Use agenda or list-events only when you need a specific date window or raw JSON payload.
  5. Normalize relative dates into exact local timestamps before reasoning about conflicts or creating an event.
  6. Prefer add --if-free for new events so overlapping slots are blocked unless the user explicitly wants a conflict.
  7. For changing an existing event, use find-events first when you do not already have the event uid.

Commands

List calendars and configured aliases:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py list-calendars

Today's agenda across the configured personal calendars:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py today

Tomorrow's agenda:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py tomorrow

List one day's events from a named calendar or alias:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py list-events \
  --calendar "prace" \
  --date today

Human-readable agenda for a specific day:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py agenda \
  --date 2026-03-27

Find free windows:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py free \
  --date today \
  --slot-minutes 30

Quick-add a new event with conflict protection:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py add \
  --calendar "doma" \
  --title "Design Review" \
  --date tomorrow \
  --start-time 15:00 \
  --duration-minutes 30 \
  --location "Zoom" \
  --notes "Bring the launch checklist." \
  --if-free

Find an event by title and day:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py find-events \
  --calendar doma \
  --title "Stolní Tenis" \
  --date today

Update an event:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py update-event \
  --calendar doma \
  --title "Stolní Tenis" \
  --date today \
  --set-location "Velká nad Veličkou 276"

Replace reminders:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py set-reminder \
  --calendar doma \
  --title "Stolní Tenis" \
  --date today \
  --minutes-before 30

Clear reminders:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py clear-reminders \
  --calendar doma \
  --title "Stolní Tenis" \
  --date today

Export to .ics:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py export-ics \
  --calendar doma \
  --date tomorrow \
  --days 1 \
  --output /tmp/my-events.ics

Import from .ics:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py import-ics \
  --calendar doma \
  --input /tmp/my-events.ics \
  --if-free

Delete an event:

bash
/usr/bin/python3 ../../scripts/apple_calendar.py delete-event \
  --calendar doma \
  --title "Stolní Tenis" \
  --date today
Show full SKILL.md (144 more words)Show less

Safety

  • Treat add and create-event as write operations.
  • Do not invent calendar names. Use the exact name or alias returned by list-calendars.
  • The helper serializes Calendar.app access with a lock and timeout; avoid parallel tool calls into the helper.
  • Use --if-free by default for new events. Use --allow-conflict only when the user explicitly wants an overlapping event.
  • Duplicate detection defaults to title+start+end. Set --dedupe-by none only when a true duplicate is intended.
  • macOS may prompt for Calendar automation access the first time the helper runs.

Output Conventions

  • Use exact dates and local times in the response.
  • Summaries should explain why a window is free or blocked instead of dumping raw JSON.
  • When creating an event, echo the final title, calendar, start, end, and any location or notes that were applied.
  • When today, tomorrow, agenda, or free is sufficient, prefer those outputs over raw JSON.

© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugins/matk0shub/apple-productivity-mcp/skills/apple-calendar of hashgraph-online/awesome-codex-plugins.

Open the folder on GitHubat commit 9e7b281

Compare with similar skills

Apple Calendar next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Apple Calendar compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Apple Calendar this skillhashgraph-online/awesome-codex-plugins1.3k—~1.2kAutomated safety check: PassApache-2.0
Site ArchitectureAvdLee/RocketSimApp80411 repos~3.3kAutomated safety check: PassCustom licence
Engine Whats Newflutter/flutter179k—~978Automated safety check: PassBSD-3-Clause
macOS Spm App PackagingDimillian/Skills4k5 repos~1.2kAutomated safety check: PassMIT
Openclaw Live Updateropenclaw/openclaw392k—~3.7kAutomated safety check: PassMIT
Orca iOS Simulator Controlstablyai/orca88k1 repos~584Automated safety check: PassApache-2.0

Similar skills

  • Site Architecture

    AvdLee/RocketSimApp

    When the user wants to plan, map, or restructure their website's page hierarchy, navigation, URL structure, or internal linking.

    804 GitHub starsUsed in 11 repos~3.3k tokens
    Marketing & SEOAuto-check passed

  • Engine Whats New

    flutter/flutter

    Generates the "what's new" release summary and diff file for changes in the Flutter engine (//engine/src/flutter) between two releases (e.g., 3.47 vs 3.44).

    179k GitHub stars~978 tokensUpdated yesterday
    MobileAuto-check passed

  • macOS Spm App Packaging

    Dimillian/Skills

    Scaffold, build, and package SwiftPM-based macOS apps without an Xcode project.

    4k GitHub starsUsed in 5 repos~1.2k tokens
    MobileAuto-check passed

  • Openclaw Live Updater

    openclaw/openclaw

    Maintain the canonical live OpenClaw main checkout, macOS LaunchAgent-managed Gateway, local macOS app, exact-head main CI, and recurring full release validation.

    392k GitHub stars~3.7k tokensUpdated today
    DevOps & CloudAuto-check passed

  • Orca iOS Simulator Control

    stablyai/orca

    iOS Simulator control from inside Orca, with the live device view in Orca's emulator pane. Use when driving a booted Apple Simulator on macOS: taps, gestures…

    88k GitHub starsUsed in 1 repo~584 tokens
    MobileAuto-check passed

  • Mole Bug Patterns

    tw93/Mole

    A catalog of recurring bug shapes in the Mole Mac cleaner, used to review safety-sensitive diffs for deletion safety, unbounded commands, shell traps and weak tests.

    70k GitHub stars~2k tokensUpdated yesterday
    DevelopmentAuto-check passed

More from hashgraph-online/awesome-codex-plugins

All 714 skills in this repo

  • Anime Reaction Gif

    hashgraph-online/awesome-codex-plugins

    Create original anime-style reaction stickers as looping GIFs and MP4 previews, using generated character pose sheets and timed key poses.

    1.3k GitHub stars~922 tokensUpdated yesterday
    Auto-check passed

  • Calibredb

    hashgraph-online/awesome-codex-plugins

    Manage and query Calibre libraries with the calibredb CLI (local paths or Calibre Content server URLs).

    1.3k GitHub stars~1k tokensUpdated yesterday
    Auto-check passed

  • Rust API Test Harness

    hashgraph-online/awesome-codex-plugins

    A skill your agent uses when adding, changing, testing, or debugging Rust HTTP APIs and services, especially when Codex needs black-box integration tests, random-port app startup, real database test…

    1.3k GitHub stars~1.7k tokensUpdated yesterday
    Auto-check passed

  • Art

    hashgraph-online/awesome-codex-plugins

    Make a studio's game look like something at build time — a cover from a real frame of the game (free), painted covers, backdrops, textures and character plates from image models through the…

    1.3k GitHub stars~2.4k tokensUpdated yesterday
    Auto-check passed

  • Calle

    hashgraph-online/awesome-codex-plugins

    Use CALL-E from Codex through the calle CLI. An agent skill from hashgraph-online/awesome-codex-plugins.

    1.3k GitHub stars~2.9k tokensUpdated yesterday
    Auto-check passed

  • Game Balance Economy

    hashgraph-online/awesome-codex-plugins

    Balance game difficulty, resources, rewards, probability, progression, economies, and dominant strategies.

    1.3k GitHub stars~618 tokensUpdated yesterday
    Auto-check passed

Works with

Questions about Apple Calendar

What does Apple Calendar do?

Read and create Calendar.app events through a local macOS helper. Apple Calendar is an agent skill from hashgraph-online/awesome-codex-plugins.app events through a local macOS helper.

When should I use Apple Calendar?

Apple Calendar fits situations like: the user wants to inspect Apple Calendar calendars; summarize a day; check upcoming events; create a new Calendar.app event from Codex.

How do I install Apple Calendar in Claude Code?

Run `npx skills add hashgraph-online/awesome-codex-plugins --skill apple-calendar -a claude-code`. Or copy the skill folder (plugins/matk0shub/apple-productivity-mcp/skills/apple-calendar in hashgraph-online/awesome-codex-plugins) into .claude/skills/apple-calendar in your project. Claude Code loads it when a task matches its description.

How do I install Apple Calendar in Codex?

Run `npx skills add hashgraph-online/awesome-codex-plugins --skill apple-calendar -a codex`. Or copy the skill folder (plugins/matk0shub/apple-productivity-mcp/skills/apple-calendar in hashgraph-online/awesome-codex-plugins) into .agents/skills/apple-calendar in your project. Codex loads it when a task matches its description.

Can I use Apple Calendar in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add hashgraph-online/awesome-codex-plugins --skill apple-calendar -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/apple-calendar, .gemini/skills/apple-calendar, .github/skills/apple-calendar and .opencode/skills/apple-calendar in your project.

What does Apple Calendar need to run?

Going by SKILL.md and its folder, Apple Calendar needs the command-line tools its instructions call (python3). Our summary lists: Python 3.

Does Apple Calendar access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Apple Calendar safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Apple Calendar use?

Apple Calendar is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Apple Calendar use?

About 1.2k tokens (SKILL.md is roughly 4.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Apple Calendar?

Skills that share tags, products or a category with Apple Calendar: Site Architecture (AvdLee/RocketSimApp, 804 stars), Engine Whats New (flutter/flutter, 179k stars), macOS Spm App Packaging (Dimillian/Skills, 4k stars) and Openclaw Live Updater (openclaw/openclaw, 392k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Apple Calendar?

hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,255 GitHub stars. The repository holds 714 skills in this directory. The repository was last updated on October 9, 2026.

Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.