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design-flash-benchmark skillC

design-flash-benchmark is agent-read markdown (skill) from equinor/neqsim.

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What the file says

# Skill: Design Flash Benchmark

## Purpose

Create a structured test matrix for comparing flash algorithm performance
across fluid types, thermodynamic conditions, and difficulty levels.

## When to Use

- Starting a new flash algorithm comparison study
- Extending an existing benchmark to new fluid families
- Designing stress tests for near-critical or multi-phase regions

## Benchmark Design Procedure

### Step 1: Select Fluid Families

Choose from these standard families:

| Family | Components | Mole Fractions | Characteristics |
|--------|-----------|----------------|-----------------|
| **Lean gas** | CH4(0.90), C2(0.05), C3(0.03), N2(0.01), CO2(0.01) | Fixed or ±10% | Easy, mostly single-phase |
| **Rich gas** | CH4(0.70), C2(0.10), C3(0.08), nC4(0.05), nC5(0.03), N2(0.02), CO2(0.02) | Fixed or ±15% | Moderate, clear two-phase |
| **Gas condensate** | CH4(0.65), C2(0.08), C3(0.06), nC4(0.04), nC5(0.03), nC6(0.02), nC7(0.02), nC10(0.05), N2(0.02), CO2(0.03) | ±20% | Near-critical behavior |
| **CO2-rich** | CO2(0.80), CH4(0.10), N2(0.05), H2S(0.03), C2(0.02) | ±15% | Strong non-ideality |
…

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C  14 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: Frontmatter block present
  • fail: Frontmatter declares a name
  • fail: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5499 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

equinor/neqsim · 155 stars · license Apache-2.0 · pushed 2026-09-24 · branch master

API

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GET https://markdownregistry.com/api/v1/blob/94746dbbced93ffd4531e5908f68430761e905b2c89b9e1e92a4cc920a8e14fc

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