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 aragaobruno/toolbelt --skill ghg-carbon-calculatorgit clone --depth 1 https://github.com/aragaobruno/toolbeltWrote 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/aragaobruno/toolbelt/ghg-carbon-calculator)<a href="https://agentmods.dev/skills/aragaobruno/toolbelt/ghg-carbon-calculator"><img src="https://agentmods.dev/badge/skills/aragaobruno/toolbelt/ghg-carbon-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/aragaobruno/toolbelt/ghg-carbon-calculator"><img src="https://agentmods.dev/badge/skills/aragaobruno/toolbelt/ghg-carbon-calculator.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 | $0.00074 | $0.00929 |
| Opus 5 | $0.00037 | $0.00464 |
| Sonnet 5 | $0.00015 | $0.00186 |
| Haiku 4.5 | $0.00007 | $0.00093 |
Grade A, and why
ghg-carbon-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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
🌿 GHG Carbon Calculator & Footprint Engine
This skill equips AI agents with SRE-grade carbon accounting capabilities. It converts operational activity logs (fuel combustion, regional electricity grids, cloud IT compute core-hours, and logistics ton-kilometers) into verified metric tons of $CO_2$ equivalent ($tCO_2e$) based on GHG Protocol Corporate Standards and IPCC AR6 GWP100 factors.
🎯 When to Activate This Skill
Activate this skill when:
- Quantifying corporate or project carbon footprints across Scope 1, Scope 2, and Scope 3 boundaries.
- Calculating cloud infrastructure emissions (AWS, GCP, Azure) from vCPU/GPU compute hours.
- Converting fleet fuel consumption or utility electricity bills into $tCO_2e$.
- Generating ISO 14064-1 compliant GHG emissions manifests.
📐 GHG Protocol Scopes & Standard Emission Factors
1. Scope Boundaries
- Scope 1 (Direct Emissions): Stationary and mobile fuel combustion (e.g., diesel, natural gas, gasoline).
- Scope 2 (Indirect - Energy): Purchased electricity, steam, heating, and cooling (Location-based vs Market-based).
- Scope 3 (Indirect - Value Chain): Purchased Goods, Cloud IT Data Centers, Business Travel, and Freight Logistics.
2. Standard IPCC AR6 GWP100 Conversion Factors
| Category | Unit | Factor ($kgCO_2e / \text{unit}$) | Source Baseline |
|---|---|---|---|
| Diesel Fuel | Liter | 2.6878 |
DEFRA / GHG Protocol |
| Gasoline / Petrol | Liter | 2.3149 |
DEFRA / GHG Protocol |
| Natural Gas | $m^3$ | 2.0213 |
DEFRA / IPCC AR6 |
| Electricity (US Grid Avg) | kWh | 0.3850 |
EPA eGRID |
| Electricity (EU Grid Avg) | kWh | 0.2300 |
EEA |
| Electricity (BR Hydro Grid) | kWh | 0.0850 |
SIN Brazil |
| Cloud Compute (CPU) | vCPU-Hour | 0.0021 |
Cloud Carbon Footprint |
| Cloud Compute (GPU A100) | GPU-Hour | 0.0750 |
CCF / NVIDIA TADP |
| Freight Logistics | Ton-KM | 0.1050 |
GLEC Framework |
🛠️ Execution & Tooling
What ships with it
1 file 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.
- 12d ago First seen · 81 lines · 74 tokens per session scan A bcc6d002ff08
ghg-carbon-calculator is a skill published in the GitHub repository aragaobruno/toolbelt (2 stars, last pushed 1mo ago), licensed MIT. It adds 74 tokens to every session and 929 once invoked, about $0.0004 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 2026-08-31.
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