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 hewi333/Mom-n-Pop-Skills --skill estimator-enginegit clone --depth 1 https://github.com/hewi333/Mom-n-Pop-SkillsWrote 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/hewi333/mom-n-pop-skills/estimator-engine)<a href="https://agentmods.dev/skills/hewi333/mom-n-pop-skills/estimator-engine"><img src="https://agentmods.dev/badge/skills/hewi333/mom-n-pop-skills/estimator-engine/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/hewi333/mom-n-pop-skills/estimator-engine"><img src="https://agentmods.dev/badge/skills/hewi333/mom-n-pop-skills/estimator-engine.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 | $0.00042 | $0.03532 |
| Opus 5 | $0.00021 | $0.01766 |
| Sonnet 5 | $0.00008 | $0.00706 |
| Haiku 4.5 | $0.00004 | $0.00353 |
Grade A, and why
estimator-engine 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 — 331 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Estimator Engine — Service Pricing Calculator
Overview
A deterministic pricing engine for a service business. Takes property/job details and returns a structured estimate with line items, ranges, and confidence levels. Designed for agent-mediated use: owners text property details, agent returns instant estimate.
When to Use
- Website estimator form — visitor enters sqft, gets instant price range
- Referral qualification — quick ballpark before site visit
- Agent creates formal estimate — detailed line items for QuickBooks
- Insurance claim scoping — severity tier mapping to pricing multipliers
Don't Use For
- Dynamic pricing / demand-based surges
- Multi-trade construction estimates
- Recurring subscription pricing
Configuration
All pricing is config-driven. Copy the config block below into a pricing_config.json
file or environment variables, then plug in your own rates. The numbers shown are
EXAMPLES — replace them with your real rate card.
# Example configuration — REPLACE ALL VALUES with your own rates
PRICING_CONFIG = {
"regions": {
"standard": {
"label": "Standard Region",
"counties": ["[REGION_1]", "[REGION_2]"] # list your service areas here
},
"premium": {
"label": "Premium Region",
"counties": ["[PREMIUM_REGION_1]"] # e.g., further travel, higher costs
}
},
"residential_commercial": {
"standard": {
"tiers": [
{"max_sqft": 1000, "rate_per_sqft": 1.55, "minimum": 1200, "cigarette_ext_addon": 350},
{"max_sqft": 1500, "rate_per_sqft": 1.30, "minimum": 0, "cigarette_ext_addon": 450},
{"max_sqft": 2500, "rate_per_sqft": 1.25, "minimum": 0, "cigarette_ext_addon": 550},
{"max_sqft": 5000, "rate_per_sqft": 1.20, "minimum": 0, "cigarette_ext_addon": 650},
{"max_sqft": 10000, "rate_per_sqft": 1.15, "minimum": 0, "cigarette_ext_addon": 750},
{"max_sqft": 999999, "rate_per_sqft": 1.10, "minimum": 0, "cigarette_ext_addon": 850}
],
"addons": {
"pet_trauma_per_sqft": 0.35,
"surface_defense_per_sqft": 0.35,
"high_rise_flat": 350
}
},
"premium": {
"tiers": [
{"max_sqft": 1500, "rate_per_sqft": 1.70, "minimum": 1500, "cigarette_ext_addon": 450},
{"max_sqft": 2500, "rate_per_sqft": 1.55, "minimum": 0, "cigarette_ext_addon": 550},
{"max_sqft": 5000, "rate_per_sqft": 1.50, "minimum": 0, "cigarette_ext_addon": 650},
{"max_sqft": 10000, "rate_per_sqft": 1.45, "minimum": 0, "cigarette_ext_addon": 750},
{"max_sqft": 999999, "rate_per_sqft": 1.40, "minimum": 0, "cigarette_ext_addon": 850}
],
"addons": {
"pet_trauma_per_sqft": 0.35,
"surface_defense_per_sqft": 0.35,
"high_rise_flat": 350
}
}
},
"apartments": {
"standard": {
"rates": {"1_bed": 900, "2_bed": 1000, "3_bed": 1100},
"addons": {"pet_trauma_flat": 150, "surface_defense_flat": 100}
},
"premium": {
"rates": {"1_bed": 900, "2_bed": 1000, "3_bed": 1100},
"premium_surcharge_flat": 500,
"addons": {"pet_trauma_flat": 150, "surface_defense_flat": 100}
}
},
"estimate_number_prefix": "EST",
"estimate_valid_days": 30,
"range_uncertainty_pct": 0.15 # ±15% around calculated total
}
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 · 331 lines · 42 tokens per session scan A 32a537736886
estimator-engine is a skill published in the GitHub repository hewi333/Mom-n-Pop-Skills (120 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 3,532 once invoked, about $0.0002 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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