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 Abhinavbwj/Skills-Architects --skill architect-calculatorgit clone --depth 1 https://github.com/Abhinavbwj/Skills-ArchitectsWrote 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/abhinavbwj/skills-architects/architect-calculator)<a href="https://agentmods.dev/skills/abhinavbwj/skills-architects/architect-calculator"><img src="https://agentmods.dev/badge/skills/abhinavbwj/skills-architects/architect-calculator/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/abhinavbwj/skills-architects/architect-calculator"><img src="https://agentmods.dev/badge/skills/abhinavbwj/skills-architects/architect-calculator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00093 | $0.03431 |
| Opus 5 | $0.00046 | $0.01716 |
| Sonnet 5 | $0.00019 | $0.00686 |
| Haiku 4.5 | $0.00009 | $0.00343 |
Grade A, and why
architect-calculator 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 12d 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 — 377 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Architect Calculator
A suite of seven command-line Python calculators for rapid architectural design computations. Each calculator accepts parameters via command-line arguments, validates inputs, and produces either human-readable or JSON-structured output.
All scripts are located in the scripts/ directory and can be run with:
python scripts/<calculator_name>.py [arguments]
Add --json to any command for structured JSON output suitable for
piping into other tools or automation workflows.
1. Area Calculator (area_calculator.py)
Calculates development density metrics from site area and floor area ratio (FAR), including gross floor area, net usable area, residential unit count, estimated population, and parking requirement.
Parameters
| Parameter | Flag | Default | Unit | Description |
|---|---|---|---|---|
| Site Area | --site-area |
Required | m2 | Total site/plot area |
| Floor Area Ratio | --far |
Required | ratio | Permitted FAR / plot ratio |
| Net-to-Gross Ratio | --ntg-ratio |
0.80 | ratio | NGA as fraction of GFA (0.0-1.0) |
| Avg Unit Size | --avg-unit-size |
85 | m2 | Average residential unit area |
| Persons per Unit | --persons-per-unit |
2.5 | persons | Average household size |
| Parking Ratio | --parking-ratio |
1.0 | spaces | Parking spaces per dwelling unit |
Example
python scripts/area_calculator.py --site-area 5000 --far 2.5 --ntg-ratio 0.82
Sample Output
=== Area & Density Calculator ===
Site Area: 5,000.00 m2
Floor Area Ratio: 2.50
---------------------------------------
Gross Floor Area: 12,500.00 m2
Net-to-Gross Ratio: 0.82
Net Gross Area: 10,250.00 m2
---------------------------------------
Average Unit Size: 85.00 m2
Estimated Units: 120
Persons per Unit: 2.50
Estimated Population: 300
---------------------------------------
Parking Ratio: 1.00 spaces/unit
Parking Spaces: 120
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.
- references/calculator-reference.md 11 KB
- scripts/area_calculator.py 5.2 KB runs code
- scripts/cost_calculator.py 7.8 KB runs code
- scripts/daylight_calculator.py 7.3 KB runs code
- scripts/egress_calculator.py 9.4 KB runs code
- scripts/energy_calculator.py 9.3 KB runs code
- scripts/structural_load_calculator.py 7.2 KB runs code
- scripts/uvalue_calculator.py 29 KB runs code
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.
- 12d ago First seen · 377 lines · 93 tokens per session scan A 873ca827e38b
architect-calculator is a skill published in the GitHub repository Abhinavbwj/Skills-Architects (285 stars, last pushed 3mo ago), licensed MIT. It adds 93 tokens to every session and 3,431 once invoked, about $0.0005 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.
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