aios-structural

aios-structural is a skill for Claude Code, Codex from ArchSightLabs/archsight-aios. It costs 70 tokens per session (842 once invoked), scanned A, original, Apache-2.0.

A review workflow for structural engineering calculations and numerical solver inputs and results. It checks information such as geometry, materials, loads, supports, units, standards, and the evidence produced by a calculation tool.

In plain words
What is it for?
Use it to prepare beam, frame, or truss calculations, review finite-element-model inputs and outputs, check modelling assumptions, interpret solver results, and identify when a structural engineer or formal sign-off is required.
Why use it?
It reduces the risk of relying on guessed values or hand-written AI calculations for safety-critical conclusions. Missing inputs stop the review until they can be verified by a deterministic solver or engineer.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the archsight-aios plugin — 33 skills shipped together

Good fit Use it to prepare beam, frame, or truss calculations, review finite-element-model inputs and outputs, check modelling assumptions, interpret solver results, and identify when a structural engineer or formal sign-off is required.

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Install with agentmods
npx agentmods add skills/archsightlabs/archsight-aios/aios-structural
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 ArchSightLabs/archsight-aios --skill aios-structural
Clone the repo
git clone --depth 1 https://github.com/ArchSightLabs/archsight-aios

Made for: Claude Code, Codex.

Or install archsight-aios, the plugin that ships this one along with the rest of its 33 skills.

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 aios-structural

README.md
[![agentmods](https://agentmods.dev/badge/skills/archsightlabs/archsight-aios/aios-structural.svg)](https://agentmods.dev/skills/archsightlabs/archsight-aios/aios-structural)
Your own site
<a href="https://agentmods.dev/skills/archsightlabs/archsight-aios/aios-structural"><img src="https://agentmods.dev/badge/skills/archsightlabs/archsight-aios/aios-structural.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 842 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 $0.00070 $0.00842
Opus 5 $0.00035 $0.00421
Sonnet 5 $0.00014 $0.00168
Haiku 4.5 $0.00007 $0.00084

Measured 8d ago against content hash f06be45c60cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

aios-structural 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/aios-structural/SKILL.md · 68 lines

What it actually says

AIOS Structural

目标

以 Euclid(结构力学专家)的方式评审结构力学、荷载、边界条件和数值求解链路。

本 Skill 的目标不是让大模型替代结构工程师或求解器,而是把结构问题拆成可验证输入、可调用工具、可复核输出和人工签审边界。

输入

  • 构件类型、几何尺寸、材料属性、荷载、边界条件和单位。
  • 适用规范、地区、专业、版本和项目工况。
  • 现有计算书、测试数据、求解器接口或脚本。
  • 需要回答的问题:建模评审、工具调用准备、结果解释或风险识别。

信息不足时,先列缺口,不得补猜单位、荷载组合或约束条件。

Capability

优先使用或要求以下能力证据:

Capability 用途 证据等级
solver.beam_deflection 梁挠度确定性计算接口示例 L1
solver.beam_deflection_serviceability_check 梁挠度正常使用限值校核;不代表强度或稳定设计 L1
solver.frame_displacement 二维平面框架位移和控制节点求解 L1
solver.truss_member_force 二维平面桁架杆件轴力求解 L1
knowledge.norm_lookup 规范条文、版本和适用条件查询 L3

如果项目没有实现对应 Adapter,输出必须标注 需实现工具适配,并只给建模和验证建议,不输出确定数值结论。

工作流

  1. 明确问题类型:参数提取、建模边界、求解器调用、结果解释、规范适用性或签审风险。
  2. 校验输入完整性:单位、荷载组合、边界条件、材料属性、截面参数、适用规范和工况。
  3. 将自然语言问题转换为结构化工具输入;缺字段时停止在 需核验
  4. 调用或要求确定性求解器证据;不得由 LLM 自行完成关键数值计算。
  5. 将工具结果转成工程说明,保留输入、公式 / 求解器版本、单位和警告。
  6. 判断是否需要 Vitruvius 做规范语义核验,或升级给人工结构工程师。

输出格式

  1. 结论
  2. 已知条件
  3. 缺失输入 / 需核验
  4. Capability 调用计划或工具结果
  5. 建模 / 计算建议
  6. 风险和人工升级点

必要时补充:

  • 判断事项: 结构判断。
  • 工具结果: 求解器或规范查询返回值摘要。
  • 已拒绝路径: 被拒绝的建模或计算路径及原因。
  • 需实现工具适配: 当前项目缺少的 Adapter。

约束

  • 不替代注册结构工程师、工程签章或法规合规最终判定。
  • 不在缺少单位、荷载组合、边界条件或材料参数时输出确定结论。
  • 不把 LLM 推理、样例公式或常识估算包装成求解器结果。
  • 不绕过测试、规范核验或人工复核发布结构安全结论。
Files

What ships with it

1 file 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 · 68 lines · 70 tokens per session scan A f06be45c60cf

Subscribe to this mod's changes

aios-structural is a skill published in the GitHub repository ArchSightLabs/archsight-aios (14 stars, last pushed 12d ago), licensed Apache-2.0. It adds 70 tokens to every session and 842 once invoked, about $0.0003 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.