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hpc-spack

hpc-spack is a skill for Codex from SciMate-AI/HPC-Skills. It costs 60 tokens per session (767 once invoked), scanned A, original, MIT.

Guidance for building and maintaining software stacks with Spack, a tool that manages packages, compilers, MPI libraries, and their dependencies for high-performance computing.

In plain words
What is it for?
Use it to write or repair Spack specifications, environments, lockfiles, compiler and MPI combinations, site modules, build caches, mirrors, and cluster-ready stacks.
Why use it?
It helps avoid inconsistent builds and installation failures by defining the stack boundary, package versions, compiler choices, external software, and reuse rules first.

Skill for Codex

Written for Codex: agents/openai.yaml present.

not rated 86repo +2 5mo ago A scan 60 tokens original MIT

Good fit Use it to write or repair Spack specifications, environments, lockfiles, compiler and MPI combinations, site modules, build caches, mirrors, and cluster-ready stacks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/scimate-ai/hpc-skills/hpc-spack
View source ↗ SciMate-AI/HPC-Skills
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 SciMate-AI/HPC-Skills --skill hpc-spack
Clone the repo
git clone --depth 1 https://github.com/SciMate-AI/HPC-Skills

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 hpc-spack

README.md
[![agentmods](https://agentmods.dev/badge/skills/scimate-ai/hpc-skills/hpc-spack/github.svg)](https://agentmods.dev/skills/scimate-ai/hpc-skills/hpc-spack)
Your own site
<a href="https://agentmods.dev/skills/scimate-ai/hpc-skills/hpc-spack"><img src="https://agentmods.dev/badge/skills/scimate-ai/hpc-skills/hpc-spack/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 hpc-spack

Your own site · 80×15
<a href="https://agentmods.dev/skills/scimate-ai/hpc-skills/hpc-spack"><img src="https://agentmods.dev/badge/skills/scimate-ai/hpc-skills/hpc-spack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 767 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.
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 $0.00060 $0.00767
Opus 5 $0.00030 $0.00383
Sonnet 5 $0.00012 $0.00153
Haiku 4.5 $0.00006 $0.00077

Measured 12d ago against content hash 061105fda02d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

hpc-spack 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.

The scan reads SKILL.md. This mod also ships 2 executable files (assets/templates/spack-build-smoke-slurm.sh, assets/templates/spack-create-env-and-install.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/hpc-spack/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HPC Spack

Treat Spack as a stack manager, not just an install command. Decide the compiler, MPI, externals, concretization policy, and environment boundary before changing package-level variants.

Start

  1. Read references/spec-and-variant-matrix.md before writing or repairing a Spack spec.
  2. Read references/compilers-and-external-packages.md when compiler registration, packages.yaml, or external software ownership is in scope.
  3. Read references/environments-and-concretization.md when using spack.yaml, lockfiles, unified concretization, or multi-package environments.
  4. Read references/compiler-and-mpi-matrix.md when the stack depends on compiler or MPI families and their combinations.
  5. Read references/modules-buildcaches-and-binary-reuse.md when integrating site modules, buildcaches, mirrors, or binary reuse.
  6. Read references/site-stack-and-reproducibility.md when the goal is a durable site stack, reproducible environment, or cluster handoff.
  7. Read references/error-recovery.md when concretization, install, compiler detection, external-package, or reuse behavior fails.

Work sequence

  1. Decide the stack boundary first:
    • site-provided externals
    • project-local Spack environment
    • site-maintained Spack stack
  2. Register compilers and externals before solving the dependency graph.
  3. Write the minimal spec or environment that captures the intended compiler and MPI choices.
  4. Concretize and inspect the solved graph before launching a long install.
  5. Capture environment manifests, overrides, and reuse settings with the build record.

Guardrails

  • Do not mix ad hoc package installs and environment-managed installs casually.
  • Do not force many variants at once before the compiler and external package model is coherent.
  • Do not treat concretization policy as an afterthought when several packages must coexist.
  • Do not hide site-provided MPI, CUDA, or math libraries from Spack if the cluster expects them to be reused as externals.

Read the full file on GitHub · 69 lines

Files

What ships with it

14 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. 12d ago First seen · 69 lines · 60 tokens per session scan A 061105fda02d

Subscribe to this mod's changes

hpc-spack is a skill published in the GitHub repository SciMate-AI/HPC-Skills (86 stars, last pushed 5mo ago), licensed MIT. It adds 60 tokens to every session and 767 once invoked, about $0.0003 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.

DevOps and cloudScientific
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