okhp3-tradition-observance-calendar SKILL.md skillA
okhp3-tradition-observance-calendar from okhp3/skillz is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add okhp3/skillz/okhp3-tradition-observance-calendar@v1.2.0Pins v1.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- okhp3/skillz
- Path
abrahamic/okhp3-tradition-observance-calendar/SKILL.md- Versions recorded
- 3
- Latest version
- v1.2.0, committed Aug 26, 2026
- First version recorded
- Jul 21, 2026
- Size
- 18,254 bytes
- Repository stars
- 3
- License
- MIT
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…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# okhp3-tradition-observance-calendar **OverKill Hill P³** · [overkillhill.com](https://overkillhill.com) · [github.com/OKHP3](https://github.com/OKHP3) Fetch, compute, and format religious observance calendars for the Abrahamic Reference Engine. Covers **Judaism** (Hebcal API), **Christianity** (Computus algorithm -- Western and Orthodox), and **Islam** (AlAdhan API). All sources are free and anonymous. No API key. No cost. Zero runtime dependencies beyond `fetch`. ## Execution contract - Accept a target year and optional tradition or denomination filter. Validate the year before constructing provider URLs or date objects. - Normalize every source into `ObservanceEvent` and retain the source, attribution, and caveat fields. Computed dates, provider dates, and missing dates must remain distinguishable. - Use `Promise.allSettled` for independent provider or month requests so one outage does not discard successful results. Surface partial failure in the UI or return metadata rather than hiding it. - Do not replace the deterministic Christian Computus path with a paid, credentialed, or unverified holiday API. Run the bundled Easter validator …
Read the whole file at its exact version.
How to install
mdr add okhp3/skillz/okhp3-tradition-observance-calendar@sha256:72e5e1b8acd58152The line at the top of this page pins the label v1.2.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_rwwflzluxs246hh5)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 21, 2026 and Aug 26, 2026, about one every 18 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.2.0 latest | 2026-08-26 | 7647b43 | 18,254 B | A | view · diff |
| v1.2.0 | 2026-07-24 | 3026887 | 18,537 B | A | view · diff |
| v1.2.0 | 2026-07-21 | a6bfd72 | 29,041 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (18254 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
okhp3/skillz · 3 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rwwflzluxs246hh5 GET https://markdownregistry.com/api/v1/resolve?ref=okhp3/skillz/okhp3-tradition-observance-calendar GET https://markdownregistry.com/api/v1/blob/72e5e1b8acd581525315e2569e7b443e51ecd18dfc5bf13e0d242a4d851712ce
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.