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 israeli-arnona-optimizergit 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/israeli-arnona-optimizer)<a href="https://agentmods.dev/skills/squadcodercom/squadcoder/israeli-arnona-optimizer"><img src="https://agentmods.dev/badge/skills/squadcodercom/squadcoder/israeli-arnona-optimizer/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/israeli-arnona-optimizer"><img src="https://agentmods.dev/badge/skills/squadcodercom/squadcoder/israeli-arnona-optimizer.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 | $0.00195 | $0.03741 |
| Opus 5.5 | $0.00078 | $0.01496 |
| Sonnet 5.5 | $0.00039 | $0.00748 |
| Haiku 4.5 | $0.00019 | $0.00374 |
Grade A, and why
israeli-arnona-optimizer 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 — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Israeli Arnona Optimizer
Instructions
Step 1: Gather Property Details
Before performing any arnona calculation, collect the following information from the user:
- Municipality (iriya): Which city or local council the property is located in (e.g., Tel Aviv-Yafo, Jerusalem, Haifa, Beer Sheva, Netanya, Rishon LeZion).
- Property area: Total area in square meters (sqm). Distinguish between main area and auxiliary areas (storage rooms, balconies, parking) as these are billed at different rates.
- Zone classification: The arnona zone within the municipality. Each city divides into zones (azor) with different rate tiers. Ask the user for their zone or help them determine it from their address.
- Usage type: Residential (megurim), commercial (mishari), office (misrad), industrial (taasia), or other special uses. Rates differ significantly by usage.
- Billing period: Arnona is billed bimonthly (every two months) in most municipalities. The annual rate is divided into 6 payment periods.
Step 2: Calculate Base Arnona
Use the arnona calculator script to compute the base annual arnona:
python scripts/arnona-calculator.py --municipality "tel-aviv" --area 80 --zone 2 --usage residential
The calculator applies the correct rate per sqm based on the municipality's published rate tables. Key rate structures:
- Tel Aviv-Yafo: Rates range from approximately 75 to 130 NIS/sqm/year for residential depending on zone (zones 1-4). Commercial rates are 2-4x higher.
- Jerusalem: Rates range from approximately 55 to 95 NIS/sqm/year for residential. Divided into 5 zones using Hebrew letters alef through heh (א through ה).
- Haifa: Rates range from approximately 50 to 90 NIS/sqm/year for residential. Lower overall compared to Tel Aviv.
- Beer Sheva: Rates range from approximately 35 to 60 NIS/sqm/year for residential. Among the lowest for major cities.
Consult references/arnona-rates-guide.md for detailed rate tables and zone classification rules.
What ships with it
8 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 · 199 lines · 195 tokens per session scan A cc2bfffab780
israeli-arnona-optimizer is a skill published in the GitHub repository squadcodercom/squadcoder (12 stars, last pushed 3mo ago), licensed MIT. It adds 195 tokens to every session and 3,741 once invoked, about $0.0008 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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