Okhp3 Tradition Observance Calendar

Q: What is a Claude Code skill and how does the Okhp3 Tradition Observance Calendar skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Okhp3 Tradition Observance Calendar is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: performance · Last updated: 2026-08-09

lang:typescript

Fetch, compute, and format religious observance calendars for the three in-scope Abrahamic traditions of the Abrahamic Reference Engine: Judaism, Christianity, and Islam. Use this skill whenever an agent needs to retrieve religious holiday data, generate iCalendar (.ics) output, look up holiday descriptions for cross-tradition audiences, or produce a unified observance event list. Covers Hebcal API (Jewish), AlAdhan API (Islamic), TypeScript Computus algorithm (Christian -- Western and Orthodox), Wikipedia summary fetching for event descriptions, .ics file generation, emoji assignments, holiday filter lists, and session caching strategy. All data sources are free, public, and require no API key. Zero cost. MIT license. Also activate when a user asks to "add holidays to my calendar app", "download religious observances as .ics", "show Jewish/Islamic/Christian holidays for a year", or compute Easter dates -- including when they ask for "all three faiths" or any single tradition's observance list.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

OverKill Hill P³ · [overkillhill.com](https://overkillhill.com) · [github.com/OKHP3](https://github.com/OKHP3)

What this skill does

Okhp3 Tradition Observance Calendar is a community-contributed Claude Code skill in the performance sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/okhp3-tradition-observance-calendar/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Okhp3 Tradition Observance Calendar Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 178,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/okhp3-tradition-observance-calendar
curl -L https://claudskills.com/skills/okhp3-tradition-observance-calendar/SKILL.md \
  -o ~/.claude/skills/okhp3-tradition-observance-calendar/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/okhp3-tradition-observance-calendar/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/okhp3-tradition-observance-calendar/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\okhp3-tradition-observance-calendar\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Okhp3 Tradition Observance Calendar Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/okhp3-tradition-observance-calendar/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Okhp3 Tradition Observance Calendar skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Okhp3 Tradition Observance Calendar skill?

Use Okhp3 Tradition Observance Calendar when your Claude Code task falls under the Engineering category — specifically in the performance area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Okhp3 Tradition Observance Calendar" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Okhp3 Tradition Observance Calendar skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Okhp3 Tradition Observance Calendar is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/OKHP3/skillz/blob/HEAD/abrahamic/okhp3-tradition-observance-calendar/SKILL.md
License: MIT
Author: OKHP3

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

OKHP3. (2026). Okhp3 Tradition Observance Calendar [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/okhp3-tradition-observance-calendar/

BibTeX

@misc{okhp3-tradition-observance-calendar-2026,
  author    = {OKHP3},
  title     = {Okhp3 Tradition Observance Calendar [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/okhp3-tradition-observance-calendar/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

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Security scan

Grade A · scanned 2026-08-09 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/okhp3-tradition-observance-calendar/#security)

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Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills

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