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cst-expert

cst-expert is a skill for Claude Code from valenZW/cst-sim-agent. It costs 105 tokens per session (1,374 once invoked), scanned A, original, Apache-2.0.

A set of instructions for automating CST Studio Suite, software used to model and simulate electromagnetic, thermal, mechanical and other engineering systems. It guides the coding agent when building models, running simulations and checking results through CST.

In plain words
What is it for?
Use it to automate CST models, simulations and result checks for tasks such as antennas, microwave systems, photonics, thermal studies, particle simulations and PCB signal analysis.
Why use it?
It reduces errors from using the wrong CST commands or relying on unverified VBA syntax. It also emphasizes checking references, recording operations and saving projects after important changes.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cst-sim-agent plugin — 1 skill, 3 hooks, 1 MCP server shipped together

not rated 3repo +1 13d ago A scan 105 tokens original Apache-2.0

Good fit Use it to automate CST models, simulations and result checks for tasks such as antennas, microwave systems, photonics, thermal studies, particle simulations and PCB signal analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/valenzw/cst-sim-agent/cst-expert
View source ↗ valenZW/cst-sim-agent
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 valenZW/cst-sim-agent --skill cst-expert
Clone the repo
git clone --depth 1 https://github.com/valenZW/cst-sim-agent

Made for: Claude Code.

Or install cst-sim-agent, the plugin that ships this one along with the rest of its 1 skill, 3 hooks, 1 MCP server.

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 cst-expert

README.md
[![agentmods](https://agentmods.dev/badge/skills/valenzw/cst-sim-agent/cst-expert.svg)](https://agentmods.dev/skills/valenzw/cst-sim-agent/cst-expert)
Your own site
<a href="https://agentmods.dev/skills/valenzw/cst-sim-agent/cst-expert"><img src="https://agentmods.dev/badge/skills/valenzw/cst-sim-agent/cst-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,374 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 $0.00105 $0.01374
Opus 5 $0.00053 $0.00687
Sonnet 5 $0.00021 $0.00275
Haiku 4.5 $0.00011 $0.00137

Measured 8d ago against content hash 54a80be1290f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

cst-expert 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 8d 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.

skills/cst-expert/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CST Expert — 全场景仿真专家

当前状态

  • 插件工具组1-8 已在真实 CST 上实测通过（连接/保存/求解器/弹窗/查询/SBR/建模/材料/参数扫描）。
  • 本插件面向通用 CST 仿真自动化，适用于任何 CST 建模/求解/后处理任务。

核心原则

  1. 始终 Python 驱动 CST：DesignEnvironment → Project → Model3D.add_to_history(VBA字符串)，不生成独立 VBA 宏文件。
  2. 操作前先查参考案例：读 example_index.md 找最接近的官方案例。
  3. VBA 语法先验证再执行：涉及具体对象时先查 vba_syntax/ 对应文件。
  4. 所有关键操作记录日志。
  5. 输出语言：思考、方案说明、询问确认中英文均可（优先与用户所用语言一致）。
  6. 🔴 关键操作后立即保存：cst_save_project 写盘并验证文件大小（cst_disconnect 写死 save=False，CST 不自动保存，崩溃丢全部内存修改）。

铁律速查表（详细规则见 references/vba-rules.md）

铁律 概要
🔴 写 VBA 前必查 vba_syntax/ 凭记忆写 CST VBA = 违规；先读插件内 references/knowledge/vba_syntax/ 对应文件
🔴 四条记录铁律 ①错误原文禁摘写 ②排障第0步确认输入存在 ③超时≠故障 ④VBA后必查消息+状态
🔴 代码注释规范 改 src/*.py 必带【文件思路】+行注释（中英文均可）+Bug编号引用
🔴 兜底查文档 语法库查不到 → 查 CST 官方文档（Online Help），禁止凭记忆盲试
⚠️ MCP 不可用排障 先读 stderr jsonl 日志，不猜；勿用 cache 目录作判据

机制化：以上铁律已由插件 hooks 按需注入——仅当调用 cst_* 工具时触发：写 VBA 前（pre_vba，用户可见提醒）、VBA 后（post_vba，含下次写前查库）、关键操作后（post_mutate）、涉 CST 会话收尾（stop_check，读 transcript 判断），见插件 hooks/ 目录。不调用 cst-sim-agent 不注入；hook 只提醒不阻断；铁律的详细理由与扩展规则仍以 references 为准。

任务收尾流程（每次仿真后强制执行）

  1. 从本轮会话记录识别经验增量：新错误、新 VBA 对象/方法、新工作流、新求解器。
  2. 按维度写入插件内 references/knowledge/ 对应文件（避坑清单 / vba_syntax / 经验库模板）。
  3. 向用户逐条确认后写入，每条附时间戳；禁止无时间戳无来源的裸经验。

案例深度学习流程（任务启动时执行）

匹配案例（example_index.md）→ 读缓存深潜或提取案例摘要 → 应用经验到任务。详细 Step A/B/C 见 references/case-study-flow.md。

知识库导航

资源 路径 用途
铁律细节 references/vba-rules.md 四条铁律全文、代码注释规范、排障、兜底查询顺序
案例流程 references/case-study-flow.md 案例深度学习、extract_case 工具用法
官方文档查询 references/official-docs.md 文档地图、查询路径、已证实官方结论
通用避坑 references/common-pitfalls.md 通用 CST 操作避坑清单（端口/网格/求解器/API 陷阱）
增量经验模板 references/best-practices-template.md 空白经验库模板，供用户 DIY 追加
语法库 references/knowledge/vba_syntax/ 8 域 VBA 权威语法（materials/ports/solver/mesh/boundaries/monitors/cad_import/postproc）
案例索引 references/knowledge/example_index.md 158 案例索引（领域+标签+求解器）
深潜缓存 references/knowledge/on_demand_dives/ 35 例已提取深度分析
静态手册 references/knowledge/仿真经验手册.md 跨领域经验提炼

Read the full file on GitHub · 63 lines

Files

What ships with it

51 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. 8d ago First seen · 63 lines · 105 tokens per session scan A 54a80be1290f

Subscribe to this mod's changes

cst-expert is a skill published in the GitHub repository valenZW/cst-sim-agent (3 stars, last pushed 13d ago), licensed Apache-2.0. It adds 105 tokens to every session and 1,374 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 2026-08-31.

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