c-calendar

c-calendar is a skill for Claude Code, Codex from daxaur/openpaw. It costs 39 tokens per session (567 once invoked), scanned A, original, MIT.

A calendar-management workflow for Google Calendar and Apple Calendar, including event lookup, availability checks, and event changes.

In plain words
What is it for?
Use it to list upcoming events, inspect calendars, check free time, and create, update, or delete events with titles, times, durations, calendars, and attendees.
Why use it?
It lets you handle common calendar tasks from commands instead of switching between calendar applications.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to list upcoming events, inspect calendars, check free time, and create, update, or delete events with titles, times, durations, calendars, and attendees.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/daxaur/openpaw/c-calendar
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add daxaur/openpaw --skill c-calendar
Clone the repo
git clone --depth 1 https://github.com/daxaur/openpaw

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for c-calendar

README.md
[![agentmods](https://agentmods.dev/badge/skills/daxaur/openpaw/c-calendar.svg)](https://agentmods.dev/skills/daxaur/openpaw/c-calendar)
Your own site
<a href="https://agentmods.dev/skills/daxaur/openpaw/c-calendar"><img src="https://agentmods.dev/badge/skills/daxaur/openpaw/c-calendar.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 567 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00039 $0.00567
Opus 5 $0.00019 $0.00283
Sonnet 5 $0.00008 $0.00113
Haiku 4.5 $0.00004 $0.00057

Measured 8d ago against content hash f7826503fa9c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

c-calendar scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/c-calendar/SKILL.md · 49 lines

What it actually says

This skill manages calendars via gog (Google Calendar) or icalBuddy (Apple Calendar). Check availability with which gog icalBuddy.

Google Calendar — gog cal (gogcli)

gog cal list                               # List upcoming events
gog cal list --days 7                      # Next 7 days
gog cal list --calendar "Work"             # Specific calendar
gog cal list --start "2026-03-01" --end "2026-03-07"
gog cal get <event-id>                     # Get event details
gog cal create --title "Meeting" --start "2026-03-01T10:00" --end "2026-03-01T11:00"
gog cal create --title "Event" --start "tomorrow 2pm" --duration 1h --calendar "Work"
gog cal create --attendees "[email protected],[email protected]" --title "Sync"
gog cal update <event-id> --title "New Title"
gog cal delete <event-id>
gog cal calendars                          # List all calendars
gog cal freebusy --start "tomorrow" --end "tomorrow 5pm"

Apple Calendar — icalBuddy

icalBuddy eventsToday                        # Today's events
icalBuddy eventsToday+3                      # Events today through next 3 days
icalBuddy eventsFrom:"2026-03-01" to:"2026-03-07"
icalBuddy -ic "Work" eventsToday             # Specific calendar
icalBuddy calendars                          # List all calendars
icalBuddy uncompletedTasks                   # Incomplete reminders/tasks

Usage Guidelines

  • Use gog cal freebusy to check availability before scheduling.
  • icalBuddy is read-only for Apple Calendar — use it for viewing, not creating.
  • For creating Apple Calendar events programmatically, prefer gog with Google Calendar or use AppleScript via the osascript fallback.
  • Dates accept natural language with gog ("tomorrow 2pm", "next Monday 9am").

Notes

  • gog requires Google OAuth: gog auth.
  • icalBuddy reads directly from the local Calendar database (no auth needed).
  • Multiple Google accounts supported via gog cal --account work list.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 49 lines · 39 tokens per session scan A f7826503fa9c

Subscribe to this mod's changes

c-calendar is a skill published in the GitHub repository daxaur/openpaw (167 stars, last pushed 3mo ago), licensed MIT. It adds 39 tokens to every session and 567 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.