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Kratos-MCP-Server: Instructions file for Claude Code

CLAUDE.md

Kratos-MCP-Server CLAUDE.md is an instructions file for Claude Code from loumalouomega/Kratos-MCP-Server. It costs 9,833 tokens per session, scanned A, original, MIT.

Instructions for a Kratos MCP server, which lets AI assistants work with Kratos Multiphysics, a simulation software package for engineering problems.

In plain words
What is it for?
Inspecting installations, creating simulation files and meshes, running jobs, and viewing VTK results as images or animations.
Why use it?
They explain the required environment and server rules so simulations can be prepared and run with the correct Kratos installation.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is loumalouomega/Kratos-MCP-Server's own configuration. It tells Claude Code how to work on Kratos-MCP-Server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Kratos-MCP-Server configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/vicente/src/Kratos.

not rated 2repo changed 2d ago A scan 9,833 tokens original MIT
View source ↗ loumalouomega/Kratos-MCP-Server loumalouomega.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to loumalouomega/Kratos-MCP-Server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/loumalouomega/Kratos-MCP-Server/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/loumalouomega/Kratos-MCP-Server

Made for: Claude Code.

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README.md
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Per session 9,833 This file is loaded in full into every session.
When invoked 9,833 The same file — it is already loaded in full.
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 $0.09833 $0.09833
Opus 5.5 $0.03933 $0.03933
Sonnet 5.5 $0.01967 $0.01967
Haiku 4.5 $0.00983 $0.00983

Measured 2d ago against content hash 5e56d3ccf514, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Kratos-MCP-Server CLAUDE.md 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 2d 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.

CLAUDE.md · 542 lines

How it starts

The opening of the file, as written. The whole thing — 542 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kratos MCP Server

MCP (Model Context Protocol) server exposing Kratos Multiphysics to AI assistants: installation introspection, case scaffolding (ProjectParameters / Materials / MDPA meshes), simulation execution as background jobs, VTK post-processing, and pyvista result previews (PNG/GIF returned inline). Python, mcp SDK (FastMCP), stdio transport.

Environment

A local compiled build is optional: src/kratos_mcp/kratos_env.py resolves Kratos from, in order, an explicit KRATOS_PYTHONPATH/KRATOS_LIBS, a KRATOS_ROOT build tree, or a pip-installed KratosMultiphysics importable by the server's own interpreter.

  • KRATOS_ROOT (default /home/vicente/src/Kratos) → uses $KRATOS_ROOT/bin/Release as PYTHONPATH and $KRATOS_ROOT/bin/Release/libs as LD_LIBRARY_PATH.
  • Overrides: KRATOS_PYTHONPATH, KRATOS_LIBS, KRATOS_SOURCE (source tree for macro parsing), KRATOS_EXTRA_LIBS (extra lib dirs; MKL under /opt/intel/oneapi/mkl/latest/lib is auto-detected — LinearSolversApplication needs libmkl_rt.so.2).
  • Pip fallback: if no build tree resolves, kratos_env.resolve() probes python -c "import KratosMultiphysics" in a subprocess. The kratos_install tool (tools/environment.py) populates this by running pip install — official wheels are KratosMultiphysics (core), Kratos<AppName> per application (e.g. KratosStructuralMechanicsApplication), or KratosMultiphysics-all (everything) — Linux/Windows x86_64 only, no macOS wheels. kratos_env.pip_install()/pypi_package_name() do the mapping and subprocess call; running pip itself is fine in the server process (it never imports Kratos), unlike everything else Kratos-related.
  • Manual incantation for ad-hoc Kratos scripts against a build tree: PYTHONPATH=$KRATOS_ROOT/bin/Release LD_LIBRARY_PATH=$KRATOS_ROOT/bin/Release/libs:/opt/intel/oneapi/mkl/latest/lib python3 ...
  • Server state (jobs, bridge cache) lives in ~/.kratos-mcp/ (KRATOS_MCP_HOME overrides; tests set it to a tmp dir).

Read the full file on GitHub · 542 lines

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. 2d ago Changed · +5 lines · +148 tokens per session 5e56d3ccf514
  2. 4d ago Changed · +2 lines · +64 tokens per session 491f1afd5698
  3. 11d ago Changed · +13 lines · +356 tokens per session bf99d0f1bbe5
  4. 12d ago Changed · +10 lines · +199 tokens per session 42a22ae9e389
  5. 14d ago Changed · +193 lines · +3,921 tokens per session ebecbcd7ac38
  6. 23d ago Changed · +18 lines · +296 tokens per session 7e974c2241cc
  7. 1mo ago Changed · +45 lines · +612 tokens per session f263fb4ab155
  8. 1mo ago First seen · 256 lines · 4,237 tokens per session scan A a1673dc926f2

Subscribe to this mod's changes

Kratos-MCP-Server CLAUDE.md is an instructions file published in the GitHub repository loumalouomega/Kratos-MCP-Server (2 stars, last pushed 3d ago), licensed MIT. It adds 9,833 tokens to every session, about $0.0393 per session on Opus 5.5. 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.

Scientificaifemfinite-element-analysisfinite-element-methodsfinite-elementskratos-multiphysics
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