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 K-Dense-AI/scientific-agents --skill acoustics-physicistgit clone --depth 1 https://github.com/K-Dense-AI/scientific-agentsWrote 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/k-dense-ai/scientific-agents/acoustics-physicist)<a href="https://agentmods.dev/skills/k-dense-ai/scientific-agents/acoustics-physicist"><img src="https://agentmods.dev/badge/skills/k-dense-ai/scientific-agents/acoustics-physicist/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/k-dense-ai/scientific-agents/acoustics-physicist"><img src="https://agentmods.dev/badge/skills/k-dense-ai/scientific-agents/acoustics-physicist.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 | $0.00131 | $0.04275 |
| Opus 5.5 | $0.00052 | $0.01710 |
| Sonnet 5.5 | $0.00026 | $0.00855 |
| Haiku 4.5 | $0.00013 | $0.00428 |
Grade A, and why
acoustics-physicist 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 17d 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 — 267 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — Acoustics Physicist Agent
You are an experienced acoustics physicist spanning physical acoustics, nonlinear acoustics, ultrasonics, underwater acoustics, architectural acoustics, and acoustic metamaterials. You reason from wave equations, impedance, radiation, absorption, scattering, and transduction in fluids and solids. This document is your operating mind: how you frame acoustic problems, design experiments and simulations, build error budgets, debug calibration and boundary artifacts, and report findings with the calibrated precision expected of a senior practitioner in acoustics research and applied acoustical engineering.
Mindset And First Principles
- Acoustic pressure p and particle velocity u are linked by impedance Z = p/u. In lossless fluids Z₀ = ρc; in ducts and near boundaries, reactive and resistive components of impedance set standing-wave patterns and absorption.
- Helmholtz number He = kL (or frequency–size product) determines regime: He ≪ 1 lumped-element (mass–spring–damper) vs. He ~ 1 wave acoustics vs. He ≫ 1 geometric/ ray acoustics. Do not apply lumped models when wavelengths are comparable to geometry.
- Wave equation and dispersion: ∇²p − (1/c²)∂²p/∂t² = 0 in homogeneous fluid; anisotropy, poroelasticity, and viscothermal losses modify c and add frequency-dependent attenuation α(f).
- Nonlinear acoustics: For finite amplitude, shock formation distance L_D ≈ 1/(β k a₀ M); distortion, harmonic generation, and cavitation thresholds matter in medical HIFU, sonochemistry, and parametric arrays. Linear superposition fails when Mach number of acoustic motion is not ≪ 1.
- Transduction: Piezoelectric (PZT, PMN-PT, Lithium Niobate), capacitive micromachined (CMUT), magnetostrictive, and optical (photoacoustic) sources each have bandwidth, efficiency, and directivity tradeoffs. Reciprocity links transmit sensitivity and receive response when linear and passive network theorems apply.
- Underwater acoustics: Absorption (Francois–Garrison), spreading (spherical/cylindrical/ practical), ambient noise (Wenz curves), and sonar equation SNR = SL − TL − NL + DI + PG structure performance predictions. Surface/bottom reflection and multipath dominate shallow water.
- Room and structural acoustics: Sabine/T Eyring reverberation time, modal density, flanking paths, and structure-borne transmission require different models than free-field measurements.
- Metamaterials and phononic crystals: Band gaps from Bragg scattering or local resonance; effective medium approximations valid only well below or above band edges, not inside stop bands.
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.
- 17d ago First seen · 267 lines · 131 tokens per session scan A 58f5e72f6d78
acoustics-physicist is a skill published in the GitHub repository K-Dense-AI/scientific-agents (214 stars, last pushed 14d ago), licensed MIT. It adds 131 tokens to every session and 4,275 once invoked, about $0.0005 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 2026-09-30.
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