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 building-servicesgit 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/building-services)<a href="https://agentmods.dev/skills/abhinavbwj/skills-architects/building-services"><img src="https://agentmods.dev/badge/skills/abhinavbwj/skills-architects/building-services/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/building-services"><img src="https://agentmods.dev/badge/skills/abhinavbwj/skills-architects/building-services.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 | $0.11252 |
| Opus 5 | $0.00037 | $0.05626 |
| Sonnet 5 | $0.00015 | $0.02250 |
| Haiku 4.5 | $0.00007 | $0.01125 |
Grade A, and why
building-services 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 11d 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 — 580 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Building Services for Architects
Section 1: HVAC Systems for Architects
Mechanical ventilation, heating, and cooling systems are the single largest consumer of building volume after the primary structure. The architect's HVAC decisions at concept stage — system type, plant room location, riser positions, ceiling void depth — are largely irreversible. This section equips architects to make informed selections and understand spatial consequences.
Space Allowances: Mechanical Plant as Percentage of GFA
| Building Type | Mechanical Plant (% of GFA) | Notes |
|---|---|---|
| Commercial office (air-conditioned) | 5-8% | Higher end for prestige/lab-grade |
| Commercial office (mixed-mode) | 3-5% | Reduced mechanical plant |
| Hospital / healthcare | 8-12% | Extensive air handling, medical gases, redundancy |
| Hotel | 5-7% | Central plant + individual room FCUs |
| Residential (apartments) | 2-4% | Minimal central plant if individual systems |
| Retail (shopping centre) | 4-6% | Anchor tenants often have own plant |
| School / university | 3-5% | Varies with ventilation strategy |
| Laboratory | 8-15% | High air-change rates, fume cupboards, specialist extract |
| Data centre | 25-40% | Cooling-dominated; massive plant requirement |
System Type 1: Natural Ventilation
- Description: Relies on wind-driven and buoyancy-driven airflow through operable windows, trickle vents, and/or ventilation shafts. No mechanical cooling. Heating by radiators, underfloor heating, or convectors.
- Spatial impact on architecture:
- Floor plate depth: Maximum 12-15m (single-sided ventilation 2.5x floor-to-ceiling height; cross-ventilation up to 5x)
- No ceiling void for ductwork — 50-150mm for surface pipework/wiring only
- No AHU plant rooms required
- Ventilation shafts/stacks may be required for buoyancy-driven ventilation (0.5-1.5m² per stack)
- Heating plant room: 0.5-1.0% of GFA (boiler room)
- Energy performance: 0 kWh/m²/yr for ventilation energy (heating energy 30-60 kWh/m²/yr)
- Noise ratings: NR 25-35 (dependent on external noise — problematic on busy roads)
- Best-fit building types: Low-rise residential, schools (in temperate climates), low-rise offices in rural/suburban settings
- Limitations: Cannot control humidity. Dependent on external conditions. Not suitable for deep plans, noisy sites, polluted environments, or climates with sustained temperatures above 28C.
What ships with it
2 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.
- 11d ago First seen · 580 lines · 74 tokens per session scan A 568b581ad6fc
building-services is a skill published in the GitHub repository Abhinavbwj/Skills-Architects (285 stars, last pushed 3mo ago), licensed MIT. It adds 74 tokens to every session and 11,252 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 2026-08-30.
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