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.
npx skills add squadcodercom/squadcoder --skill idf-date-convertergit clone --depth 1 https://github.com/squadcodercom/squadcoderWrote 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.
[](https://agentmods.dev/skills/squadcodercom/squadcoder/idf-date-converter)<a href="https://agentmods.dev/skills/squadcodercom/squadcoder/idf-date-converter"><img src="https://agentmods.dev/badge/skills/squadcodercom/squadcoder/idf-date-converter/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/squadcodercom/squadcoder/idf-date-converter"><img src="https://agentmods.dev/badge/skills/squadcodercom/squadcoder/idf-date-converter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00137 | $0.02410 |
| Opus 5.5 | $0.00055 | $0.00964 |
| Sonnet 5.5 | $0.00027 | $0.00482 |
| Haiku 4.5 | $0.00014 | $0.00241 |
Grade A, and why
idf-date-converter 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
IDF Date Converter
Instructions
Step 1: Identify the Request
| Request | Action |
|---|---|
| Convert specific date | Gregorian to Hebrew or Hebrew to Gregorian conversion |
| When is holiday X? | Look up holiday in Hebrew calendar |
| Format for document | Dual date string in Hebrew + Gregorian |
| Business days | Count excluding Shabbat + holidays |
| Shabbat times | Candle lighting / havdalah for city |
Step 2: Date Conversion
Use Python conversion:
# Using pyluach library
from pyluach import dates, hebrewcal
# Gregorian to Hebrew
greg_date = dates.GregorianDate(2026, 2, 24)
heb_date = greg_date.to_heb()
print(f"{heb_date.day} {heb_date.month_name()} {heb_date.year}")
# Hebrew to Gregorian (always verify the resulting date by round-tripping)
heb_date = dates.HebrewDate(5786, 11, 15) # 15 Shvat 5786 (Tu B'Shvat) — pyluach numbers months starting at Nisan=1, so Shvat=11
greg_date = heb_date.to_greg()
print(f"{greg_date.day}/{greg_date.month}/{greg_date.year}")
Step 3: Hebrew Numeral Formatting
Hebrew dates use gematria (letter-number system):
- Units: alef=1, bet=2, gimel=3, ... tet=9
- Tens: yod=10, kaf=20, lamed=30, ... tzadi=90
- Hundreds: kuf=100, resh=200, shin=300, tav=400
- Special: 15 = tet-vav (not yod-heh), 16 = tet-zayin (not yod-vav)
- Year: Omit thousands (5786 written as tav-shin-peh-vav = 786)
Step 4: Dual Date Formatting
For Israeli documents:
24 February 2026 / 7 Adar 5786
(5786 is a regular Hebrew year, not a leap year, so there is only one Adar — no Adar I / Adar II. Always run pyluach to confirm a dual-date string before printing it.)
Step 5: Israeli Business Days
Israeli business week: Sunday through Thursday (some work half-day Friday) Non-working days:
- Every Shabbat (Friday sunset to Saturday sunset)
- All major holidays (see holiday table)
- Election days (when applicable)
def is_israeli_business_day(greg_date):
"""Check if a date is an Israeli business day."""
# Saturday = 5 in Python's weekday() (0=Monday)
if greg_date.weekday() == 5: # Saturday
return False
# Check if it's a holiday
heb = dates.GregorianDate(greg_date.year, greg_date.month, greg_date.day).to_heb()
# Check against holiday list
return not is_israeli_holiday(heb)
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 149 lines · 137 tokens per session scan A 9cbd61289a70
idf-date-converter is a skill published in the GitHub repository squadcodercom/squadcoder (12 stars, last pushed 3mo ago), licensed MIT. It adds 137 tokens to every session and 2,410 once invoked, about $0.0005 per session on Opus 5.5. 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.
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