staad-steel-design

staad-steel-design is a skill for Claude Code, Codex from BentleySystems/openstaad-mcp. It costs 173 tokens per session (1,307 once invoked), scanned A, original, MIT.

A skill for designing and checking steel members in STAAD.Pro, a structural engineering program. It supports several design standards, including AISC 360, Eurocode 3, and IS 800.

In plain words
What is it for?
Use it to create a design brief, check member capacity, choose passing sections, generate material take-offs, and read design results.
Why use it?
It provides a repeatable way to check whether steel members can carry their design loads and identify sections that do not meet the chosen standard.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create a design brief, check member capacity, choose passing sections, generate material take-offs, and read design results.

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Install with agentmods
npx agentmods add skills/bentleysystems/openstaad-mcp/staad-steel-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 BentleySystems/openstaad-mcp --skill staad-steel-design
Clone the repo
git clone --depth 1 https://github.com/BentleySystems/openstaad-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 staad-steel-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/bentleysystems/openstaad-mcp/staad-steel-design/github.svg)](https://agentmods.dev/skills/bentleysystems/openstaad-mcp/staad-steel-design)
Your own site
<a href="https://agentmods.dev/skills/bentleysystems/openstaad-mcp/staad-steel-design"><img src="https://agentmods.dev/badge/skills/bentleysystems/openstaad-mcp/staad-steel-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 staad-steel-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/bentleysystems/openstaad-mcp/staad-steel-design"><img src="https://agentmods.dev/badge/skills/bentleysystems/openstaad-mcp/staad-steel-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 173 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,307 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00173 $0.01307
Opus 5 $0.00086 $0.00654
Sonnet 5 $0.00035 $0.00261
Haiku 4.5 $0.00017 $0.00131

Measured 11d ago against content hash 014497cc32ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

staad-steel-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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/aisc360-design.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

src/openstaad_mcp/staad_skills/staad-steel-design/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

STAAD.Pro Steel Design

Instructions

Design Workflow — 5 Steps

Step 1 — Create design brief

brief_ref = design.CreateDesignBrief(1067)  # AISC 360-16
Code Standard
1067 AISC 360-16
1061 AISC 360-10
1045 AISC 360-05
1004 BS 5950-1:2000
1220 BS EN 1993-1-1 (Eurocode 3)
1032 IS 800 2007 LSD
1149 AS 4100
1182 CSA S16-14

Step 2 — Assign design commands to members

design.AssignDesignCommand(brief_ref, 'CHECK CODE', '', beam_list)
# Returns True on success and raises on failure (execute_code reports any error)
Command Description
CHECK CODE Verify member capacity against the code
SELECT Optimize section (pick the lightest passing section)
TAKE OFF Generate material take-off report

Step 3 — Save to persist design commands

staad.SaveModel(True)

Step 4 — Run analysis + design

staad.SetSilentMode(True)
status = staad.AnalyzeEx(1, 0, 1)   # silentMode=1, hiddenMode=0, waitTillComplete=1
staad.SetSilentMode(False)
# status == 2 means success

Step 5 — Read results

out = staad.Output
# Verify first
blk_count = out.GetSteelDesignParameterBlockCount()   # must be > 0

# Per-member full results
r = out.GetMemberSteelDesignResults(bid)
# Returns: (codeName, status, ratio, allowable, critLC, critPos, clause, section, forces[FX,MY,MZ], klr)
# status: 'PASS' or 'FAIL'; ratio > 1.0 = failure

# Quick ratio only
ratio = out.GetMemberSteelDesignRatio(bid)  # -999=not designed, -1=no analysis

# Model-wide extremes
max_r = out.GetMemberSteelDesignMaxFailureRatio()
min_r = out.GetMemberSteelDesignMinFailureRatio()

Design Parameters

Assign parameters before running analysis:

design.AssignDesignParameter(brief_ref, paramName, paramValue, member_ids)
# Returns True on success and raises on failure
Parameter Description Example
BEAM Member is a beam "1"
FYLD Yield strength "250" (MPa)
FU Ultimate strength "400" (MPa)
KY Effective length factor Y "0.85"
KZ Effective length factor Z "1.0"
LY Unbraced length Y "3000" (mm)
LZ Unbraced length Z "3000" (mm)
CB Bending coefficient "1.0"
UNL Unsupported length "6000" (mm)
TRACK Output detail level "2"
DMAX Maximum section depth "600" (mm)
DMIN Minimum section depth "200" (mm)

Read the full file on GitHub · 128 lines

Files

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.

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. 11d ago First seen · 128 lines · 173 tokens per session scan A 014497cc32ea

Subscribe to this mod's changes

staad-steel-design is a skill published in the GitHub repository BentleySystems/openstaad-mcp (42 stars, last pushed today), licensed MIT. It adds 173 tokens to every session and 1,307 once invoked, about $0.0009 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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