Molecular Formula Validation includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section). The SKILL.md runs to about 975 words, in the catalog's typical mid-range.
Molecular Formula Validation sits in the Science & Research category under the biology-medicine sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.
These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.
Molecular Formula Validation is a community-contributed Claude Code skill in the biology-medicine sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/molecular-formula-validation/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when when you have a feature list from HRMS with tentatively assigned molecular formulas (from in silico tools or databases) and need to assess formula plausibility before applying downstream PFAS-specific filters.
The Molecular Formula Validation Claude Code skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/molecular-formula-validation curl -L https://claudskills.com/skills/molecular-formula-validation/SKILL.md \ -o ~/.claude/skills/molecular-formula-validation/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/molecular-formula-validation/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/molecular-formula-validation/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\molecular-formula-validation\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/molecular-formula-validation/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Molecular Formula Validation is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{molecular-formula-validation-2026,
author = {HolobiomicsLab},
title = {Molecular Formula Validation [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/molecular-formula-validation/}
}Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
Browse all Science & Research skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.