Calendar Event Manager

This solves the "I set a Calendar event and still missed it" problem by creating both macOS Calendar events with multi-tier sound alarms and paired Reminders as a redundant notification channel. The implementation is unusually opinionated: it enforces sounds longer than 1.4 seconds only (shorter ones get ignored), bans string-based date parsing after multiple locale failures, and mandates six alarm tiers from one day before through event time, each with a different sound so you know which tier fired by ear alone. Built from real failures documented in the comments. If you've ever missed an important meeting despite "setting a reminder," this is the paranoid version of event management.

skills.sh installs: 214
GitHub stars: 2
last updated: Aug 21, 2026

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Install

$ npx -y skills add terrylica/cc-skills --skill calendar-event-manager --agent claude-code

Installs into .claude/skills of the current project.

Files

Calendar Event Manager

Create macOS Calendar events with tiered sound alarms and paired Reminders so events are never missed across Mac and iOS.

Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.

CRITICAL RULES (Hard-Learned Truths 2026-02-12)

These rules are NON-NEGOTIABLE. Violating any of them defeats the purpose of this skill.

1. Calendar + Reminders ALWAYS Together

Every event MUST create BOTH:

Calendar event with multiple sound alarm entries (custom sound per tier)
Reminders (3 minimum) as a separate notification channel

Never create one without the other.

2. Use `sound alarm`, NOT `display alarm`

-- CORRECT: audible alert with custom sound
make new sound alarm at end of sound alarms with properties {trigger interval:-60, sound name:"Glass"}

-- WRONG: silent visual banner only
make new display alarm at end of display alarms with properties {trigger interval:-60}

SKILL.md on GitHub