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.
npx skills add AmariahAK/atlarix-skills --skill acr-fortrangit clone --depth 1 https://github.com/AmariahAK/atlarix-skillsWrote 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.
[](https://agentmods.dev/skills/amariahak/atlarix-skills/acr-fortran)<a href="https://agentmods.dev/skills/amariahak/atlarix-skills/acr-fortran"><img src="https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-fortran/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.
<a href="https://agentmods.dev/skills/amariahak/atlarix-skills/acr-fortran"><img src="https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-fortran.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00014 | $0.00687 |
| Opus 5 | $0.00007 | $0.00344 |
| Sonnet 5 | $0.00003 | $0.00137 |
| Haiku 4.5 | $0.00001 | $0.00069 |
Grade A, and why
Modern Fortran rules for scientific computing, modules, explicit interfaces, kin 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Modern Fortran rules for scientific computing, modules, explicit interfaces, kin
When to use this skill
Modern Fortran rules for scientific computing, modules, explicit interfaces, kind parameters, memory safety, and testing
Source
Synced from https://github.com/PatrickJS/awesome-cursorrules/tree/main/rules/fortran.mdc.
Fortran Programming Guidelines
Basic Principles
- Use modern Fortran standards such as Fortran 2003, 2008, or newer.
- Use
implicit nonein every program unit. - Put procedures in modules to provide explicit interfaces.
- Keep modules focused and place each major module in its own file.
- Prefer clear, structured code over clever language tricks.
- Avoid obsolete features such as COMMON blocks, GOTO-heavy control flow, and numeric labels.
Kinds and Types
- Define numeric kind parameters in one shared module, such as
kind_mod. - Use
real(kind=dp)or the project-approved real kind for floating point values. - Use
integer(kind=i4)or the project-approved integer kind for integer values. - Define constants such as pi explicitly.
- Include units in comments for physical quantities.
- Use derived types to group related data instead of passing many primitive arguments.
Naming and Style
- Use lowercase for language keywords and most identifiers.
- Use underscores for multi-word names.
- Avoid names that differ only by case.
- Use descriptive names for procedures and state.
- Repeat the procedure or module name after
endstatements. - Keep indentation consistent in
do,if,select case, and module blocks.
Procedures
- Keep subroutines and functions short and single-purpose.
- Use
intent(in),intent(out), orintent(inout)for every dummy argument. - Keep functions free of side effects whenever possible.
- Prefer early validation and clear returns over deep nesting.
- Use
use, only:when importing from modules.
Memory and Arrays
- Prefer allocatable arrays over pointers unless pointer semantics are required.
- Check allocation state and array sizes before use.
- Deallocate allocatable arrays when their lifetime is not naturally scoped.
- Specify array bounds clearly when they matter.
- Avoid unnecessary dynamic allocation in hot loops.
What ships with it
1 file 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.
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.
- 12d ago First seen · 78 lines · 14 tokens per session scan A 733797d0e4b2
Modern Fortran rules for scientific computing, modules, explicit interfaces, kin is a skill published in the GitHub repository AmariahAK/atlarix-skills (2 stars, last pushed 5d ago), licensed Apache-2.0. It adds 14 tokens to every session and 687 once invoked, about $0.0001 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 2026-08-31.
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