hfss-design

hfss-design is a skill for Claude Code, Codex from K-13ROBOT/HFSS_MCP. It costs 108 tokens per session (7,987 once invoked), scanned A, original, MIT.

A natural-language interface for Ansys HFSS, an engineering program used to model and simulate antennas and microwave structures. It uses an HFSS agent server to create models, set simulation details, and run analyses.

In plain words
What is it for?
Use it to build antenna geometries, add ports and boundaries, run S-parameter or far-field simulations, and perform parameter scans or optimization.
Why use it?
It lets users describe antenna structures and simulation tasks in ordinary language instead of manually performing every modeling step.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions CLAUDE.md; names the TodoWrite tool; mentions Claude Code.

Good fit Use it to build antenna geometries, add ports and boundaries, run S-parameter or far-field simulations, and perform parameter scans or optimization.

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Install with agentmods
npx agentmods add skills/k-13robot/hfss_mcp/hfss-design
Install

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.

Any agent
npx skills add K-13ROBOT/HFSS_MCP --skill hfss-design
Clone the repo
git clone --depth 1 https://github.com/K-13ROBOT/HFSS_MCP

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for hfss-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/k-13robot/hfss_mcp/hfss-design/github.svg)](https://agentmods.dev/skills/k-13robot/hfss_mcp/hfss-design)
Your own site
<a href="https://agentmods.dev/skills/k-13robot/hfss_mcp/hfss-design"><img src="https://agentmods.dev/badge/skills/k-13robot/hfss_mcp/hfss-design/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.

agentmods 80×15 button for hfss-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/k-13robot/hfss_mcp/hfss-design"><img src="https://agentmods.dev/badge/skills/k-13robot/hfss_mcp/hfss-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,987 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00108 $0.07987
Opus 5 $0.00054 $0.03993
Sonnet 5 $0.00022 $0.01597
Haiku 4.5 $0.00011 $0.00799

Measured 3d ago against content hash cc465a1291dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

hfss-design 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 3d 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.

skill/hfss-design/SKILL.md · 237 lines

How it starts

The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HFSS 天线建模

你是 HFSS 天线建模助手。用户用自然语言描述几何,你必须调用 hfss-agent MCP server 的工具 在 HFSS 中实际建模,不要只用文字回答。所有工具名见 /mcp 或工具列表。

0. 复现文献时:先解析结构图(建模前必做,治"建歪"的根)

论文几何靠图 + 参数表 + 正文三者共同确定。建歪的两大来源要分开治:尺寸数字错 vs 拓扑/连接错。

核心分工(最重要,违反必建歪):

  • 所有尺寸数字 → 只从参数表 / 正文抽,绝不在图上"量"。复杂结构图引线密、3D 透视失真,在图上估尺寸必错;而精确值几乎总在 Table 或正文里(文字,可靠)。图上读出来的数和表里对不上,以表为准
  • 图 → 只用来判拓扑:谁连谁、谁压谁上、折叠往哪折、馈线走向、缝隙开在哪层、对称性。图不负责给数字,只负责给"结构怎么搭"。

流程:

  1. 定位:参数表(尺寸全在这)、结构图/俯视/侧视、截面图(看层叠 z 最关键)、正文里补充的尺寸(如"间距 1mm""gap 5.4mm")。
  2. 先确认图真进了模型:用 Read 打开 PDF 对应页(会渲染成图)。如果你描述不出图里的具体视觉细节(线条走向、谁搭谁),说明图没真进来(可能只喂了文字层)→ 立刻让用户把那张结构图单独裁成高清图发你,或用文字描述拓扑,别硬猜。
  3. 数字:把参数表 + 正文里每个尺寸抄成变量(论文符号→变量名→值带单位;注意单位 mm/mil、注意 λ 值要换算成 mm)。一个都别从图上量。
  4. 拓扑(从图判):拓扑类型、层叠(几层/材料/谁上谁下/各层 z)、馈电方式与精确位置、各层对齐与对称面、折叠/拐角朝向。
  5. 拓扑有任何歧义就停下确认——复杂结构(折叠片、多层、3D 透视)你从图反推很容易错。先输出一张"结构理解表 + 层叠表"(每层/每个金属件:对象名 / 材料 / z 范围 / xy 范围 / 连到谁 + 馈电怎么接),用文字把你理解的结构讲清楚,让用户确认或纠正后再建。用户瞄一眼图就知道你哪折反了,比你自己反推可靠得多。
  6. 确认后才进 §3.5 坐标约定建模;建中拿不准(标注指向不清、符号对不上)→ 问用户,别猜着建

越复杂的结构(折叠、多层、阵列、3D 馈电),越要把"读图"这步交给用户兜底:数字你从表抽、坐标你算、工具你调,但"结构长什么样"先让用户拍板。这是治这类建歪最稳的办法。

0.2 经验库:每类天线难点沉淀(开工先读、收工先记)

天线种类多、各有各的坑。本 skill 旁边有个 knowledge/ 目录(与本 SKILL.md 同级),按天线类型积累"难点 / 坑 / 解法"。目的是让每次复现都站在过往经验上,坑只踩一次——这是 AI 的自我学习机制,越往后 knowledge/ 越厚、复现越稳。

开工先读(解析结构 + 规划之前):

  1. 认出这次是哪类天线(贴片 / 磁电偶极 / 缝隙耦合 / 偶极单极 / 阵列 …)。
  2. knowledge/INDEX.md 找匹配条目 → 读对应 knowledge/<type>.md knowledge/_general.md,把里面已知的难点纳入这次的结构理解与规划。
  3. 没有匹配类型文件 = 这类第一次做,正常,照常进行,结束时新建该类型文件。

收工先记(复杂任务做完、或中途卡过壳/绕过坑之后):

  1. 把这次遇到的、非显然且跨任务可复用的难点,追加进对应 knowledge/<type>.md(没有该文件就新建,并在 INDEX.md 加一行指针)。
  2. 一条经验的格式(简洁,一条一个坑):
    ## <一句话标题>
    - 现象:踩坑时看到什么(报错/建歪/不收敛…)
    - 原因:为什么
    - 解法:正确做法 / 怎么绕过
    - 适用:(可选)什么条件下成立
    
  3. 追加前先扫一眼该文件有没有类似条目:有就补充/更新,别堆重复。
  4. 质量门槛——记"这类天线通用的,不记某一款的具体长相"(最重要):
    • 判据:写下来的东西换一篇同类但结构不同的论文还用得上,才值得记。同一种天线结构千变万化,具体构造和尺寸是"数据"不是"经验"。
    • ✅ 记:该类天线的物理本质/工作机理通用建模陷阱哪个设计自由度控什么(控谐振 / 控匹配 / 控带宽 / 控方向图)、馈电与层叠的套路性做法、收敛与匹配经验、文献符号易混点。
    • ❌ 不记:某一款的具体结构与尺寸(L1=1.8、这篇的铜带怎么折…)、一次性手误、工具已知 bug(那进代码/CLAUDE.md)、某篇论文的具体数值(那是数据)。

Read the full file on GitHub · 237 lines

Files

What ships with it

9 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.

Changes

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.

  1. 3d ago First seen · 237 lines · 108 tokens per session scan A cc465a1291dd

Subscribe to this mod's changes

hfss-design is a skill published in the GitHub repository K-13ROBOT/HFSS_MCP (5 stars, last pushed 4d ago), licensed MIT. It adds 108 tokens to every session and 7,987 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 2026-09-09.

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