fep-agent-hub

fep-agent-hub is a skill for Codex from Cai-aa/CAE-Agent-Hub. It costs 118 tokens per session (1,195 once invoked), scanned A, original, MIT.

A coordinator for evidence-first computer-aided engineering workflows using FreeCAD for design, Elmer FEM for finite-element simulation, and ParaView for result viewing. It connects these separate stages through project files, manifests, logs, and defined physics checks.

In plain words
What is it for?
Use it for CAD-to-mesh-to-solver workflows, steady or time-dependent heat-transfer studies, transformer induction analysis, and other listed engineering cases.
Why use it?
It helps prevent missing links between CAD, mesh generation, simulation, and postprocessing. It also keeps native files and evidence together while checking that required software and approved analysis profiles are available.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions AGENTS.md.

Good fit Use it for CAD-to-mesh-to-solver workflows, steady or time-dependent heat-transfer studies, transformer induction analysis, and other listed engineering cases.

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Install with agentmods
npx agentmods add skills/cai-aa/cae-agent-hub/fep-agent-hub
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 Cai-aa/CAE-Agent-Hub --skill fep-agent-hub
Clone the repo
git clone --depth 1 https://github.com/Cai-aa/CAE-Agent-Hub

Made for: 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 fep-agent-hub

README.md
[![agentmods](https://agentmods.dev/badge/skills/cai-aa/cae-agent-hub/fep-agent-hub/github.svg)](https://agentmods.dev/skills/cai-aa/cae-agent-hub/fep-agent-hub)
Your own site
<a href="https://agentmods.dev/skills/cai-aa/cae-agent-hub/fep-agent-hub"><img src="https://agentmods.dev/badge/skills/cai-aa/cae-agent-hub/fep-agent-hub/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 fep-agent-hub

Your own site · 80×15
<a href="https://agentmods.dev/skills/cai-aa/cae-agent-hub/fep-agent-hub"><img src="https://agentmods.dev/badge/skills/cai-aa/cae-agent-hub/fep-agent-hub.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,195 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 $0.00118 $0.01195
Opus 5 $0.00059 $0.00598
Sonnet 5 $0.00024 $0.00239
Haiku 4.5 $0.00012 $0.00120

Measured 11d ago against content hash eac51fb426ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

fep-agent-hub 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.

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:

Skill/fep-agent-hub/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

FEP Agent Hub

Run the three MCP servers as independent stages joined by manifests, semantic IDs, native solver artifacts, and explicit physics gates. Preserve auditability over convenience.

Establish the run contract

  1. Locate the FEP Agent Hub repository and read its AGENTS.md, root README, relevant prompt, and relevant report before changing a workflow.
  2. Resolve native executables through OPEN_CAE_CONFIG, environment variables, or configs/open-cae.local.toml. Treat public paths as placeholders.
  3. Choose a unique project name beneath the configured workspace. Keep FCStd, STEP, mesh, SIF, logs, VTU/PVD, images, tables, and evidence inside that project.
  4. Probe all three MCP environments before modeling. Stop if a required native executable or server is unavailable.
  5. Never expose arbitrary shell, Python, executable, macro, MATC, or raw SIF input. Use only fixed runners, structured parameters, and allowlisted analysis profiles.

Select a verified profile

Read references/case-catalog.md when selecting a profile, copying benchmark parameters, or deciding whether the request exceeds verified capability.

Use a listed profile only for the physics and dimensionality it declares. Add a new profile, deterministic benchmark, tests, and gates before claiming a new class of analysis is supported.

Orchestrate the native chain

Read references/orchestration.md before executing or modifying a case.

Follow this order:

  1. Preflight — inspect tool/resource inventories and probe FreeCAD, Elmer/Gmsh, and ParaView.
  2. FreeCAD — create or open the document; create named features; apply only required booleans/transforms; inspect objects; validate geometry; save FCStd; export STEP plus geometry manifest.
  3. Elmer geometry and mesh — create the case with an allowlisted profile; import STEP and manifest; generate Gmsh physical groups; convert with ElmerGrid; inspect SI bounds, entity counts, and semantic mappings.
  4. Elmer physics — set materials, the structured equation profile, excitations, and boundary conditions; generate and validate SIF; run ElmerSolver; check job state, process exit, logs, expected time steps, actual arrays, finite values, and physics gates.
  5. ParaView — start the MCP-owned headless session; open the actual VTU/PVD; inspect dataset type, arrays, associations, ranges, and time values before creating filters; render/export PNG, CSV, animation frames, and PVSM; inspect the final pipeline; stop only the MCP-owned session.
  6. Report — record inputs, versions, mesh, solver status, field extrema, benchmark errors, sensitivity checks, artifacts, hashes, pass/fail decisions, limitations, and the exact meaning of any animation.

Read the full file on GitHub · 70 lines

Files

What ships with it

4 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 · 70 lines · 118 tokens per session scan A eac51fb426ef

Subscribe to this mod's changes

fep-agent-hub is a skill published in the GitHub repository Cai-aa/CAE-Agent-Hub (877 stars, last pushed 4d ago), licensed MIT. It adds 118 tokens to every session and 1,195 once invoked, about $0.0006 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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