fortran-namelist SKILL.md skillA
fortran-namelist from cxcscmu/skilllearnbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cxcscmu/skilllearnbench/fortran-namelist@git:20260424.d50cf5aPins git:20260424.d50cf5a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cxcscmu/skilllearnbench
- Path
skills/b1-one-shot-claude-haiku-4-5/temperature-simulation/fortran-namelist/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260424.d50cf5a, committed Apr 24, 2026
- Size
- 4,093 bytes
- Repository stars
- 91
- License
- MIT
Reading and modifying Fortran namelist configuration files for scientific models.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Fortran Namelist Skill
## Overview
Fortran namelists are human-readable configuration files used by many scientific models. They use `§ion` syntax and key=value pairs. Parsing requires careful handling of Fortran syntax quirks.
## File Format
```fortran
§ion_name
parameter1 = value1
parameter2 = value2, value3, value4
array_param = 1, 2, 3, 4, 5
/
```
Key features:
- Sections enclosed with `&name` and `/`
- Each section ends with `/`
- Values can be scalars or comma-separated arrays
- Comments may appear (starting with `!`)
- Spaces and newlines are flexible
## Reading Namelists
### Using f90nml Library (Recommended)
```python
import f90nml
# Read entire namelist
nml = f90nml.read('/path/to/config.nml')
# Access values
kw = nml['light']['Kw']
coef_mix = nml['mixing']['coef_mix_hyp']
# Modify values
nml['light']['Kw'] = 0.35
nml['mixing']['wind_factor'] = 1.1
# Write back
nml.write('/path/to/config.nml', force=True)
```
### Installation
```bash
pip install f90nml
```
### Manual Parsing with Regex
For simple changes without additional dependencies:
```python
import re
def read_nml_parameter(nml_file, section, param):
…Read the whole file at its exact version.
How to install
mdr add cxcscmu/skilllearnbench/fortran-namelist@sha256:efac5c972337c729The line at the top of this page pins the label git:20260424.d50cf5a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_i2po46p73jee7mf7)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Apr 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4093 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
cxcscmu/skilllearnbench · 91 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_i2po46p73jee7mf7 GET https://markdownregistry.com/api/v1/resolve?ref=cxcscmu/skilllearnbench/fortran-namelist GET https://markdownregistry.com/api/v1/blob/efac5c972337c72926d682f9069a9f4af8d5bfc21d224783f5b0293d10e17f15
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.