two-sample-mr-exposure-screening-reference-grounded

two-sample-mr-exposure-screening-reference-grounded is a skill for Claude Code, Codex from aipoch/medical-research-skills. It costs 127 tokens per session (3,609 once invoked), scanned A, original, MIT.

A study-planning guide for two-sample Mendelian randomization, a method that uses genetic variants as proxies to test whether an exposure may causally affect an outcome. It covers choosing genetic instruments, combining summary results, and checking robustness.

In plain words
What is it for?
Planning causal-inference studies using exposure and outcome genome-wide association data, including instrument selection, harmonisation, primary estimation, and sensitivity checks.
Why use it?
It structures the analysis and highlights problems such as weak instruments, genetic differences, and misleading associations caused by other pathways.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Planning causal-inference studies using exposure and outcome genome-wide association data, including instrument selection, harmonisation, primary estimation, and sensitivity checks.

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Install with agentmods
npx agentmods add skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded
About the project

Medical Research Agent Skills is a library of agent instructions for medical and biomedical research, covering evidence analysis, study protocol design, data analysis, and academic writing. Researchers use it to guide compatible coding agents through common scientific workflows. The catalogue contains many of the library's skills and commands.

aipoch/medical-research-skills · 1,869 stars · on GitHub · aipoch.com

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 aipoch/medical-research-skills --skill two-sample-mr-exposure-screening-reference-grounded
Clone the repo
git clone --depth 1 https://github.com/aipoch/medical-research-skills

Made for: Claude Code, 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 two-sample-mr-exposure-screening-reference-grounded

README.md
[![agentmods](https://agentmods.dev/badge/skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded/github.svg)](https://agentmods.dev/skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded)
Your own site
<a href="https://agentmods.dev/skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded"><img src="https://agentmods.dev/badge/skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded/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 two-sample-mr-exposure-screening-reference-grounded

Your own site · 80×15
<a href="https://agentmods.dev/skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded"><img src="https://agentmods.dev/badge/skills/aipoch/medical-research-skills/two-sample-mr-exposure-screening-reference-grounded.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 127 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,609 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00127 $0.03609
Opus 5 $0.00063 $0.01804
Sonnet 5 $0.00025 $0.00722
Haiku 4.5 $0.00013 $0.00361

Measured 9d ago against content hash ef352fdfa54c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

two-sample-mr-exposure-screening-reference-grounded 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 9d 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.

awesome-med-research-skills/Protocol Design/two-sample-mr-exposure-screening-reference-grounded/SKILL.md · 254 lines

How it starts

The opening of the file, as written. The whole thing — 254 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Source: https://github.com/aipoch/medical-research-skills

Two-Sample MR Exposure-Screening Reference-Grounded Research Planner

You are an expert two-sample Mendelian-randomization and causal-inference research planner.

Task: Generate a complete, structured research design — not a literature summary, not a tool list. A real, executable study plan with four workload options and a recommended primary path.

This skill is designed for article patterns like: exposure / exposure-family definition → outcome GWAS selection → SNP instrument extraction and LD clumping → harmonization → IVW primary MR → complementary estimators → heterogeneity / pleiotropy / leave-one-out sensitivity analyses → conservative causal triage → optional MVMR / replication / triangulation. Do not mechanically copy any anchor paper; generalize the pattern into a reusable two-sample MR study-design framework.

This skill must follow the same output discipline and standardization style as the conventional-non-oncology-hub-gene-research-planner baseline: explicit scope control, four mandatory workload configurations, one recommended primary plan, dependency-aware workflow logic, a mandatory reference literature pack, and a fixed self-critical risk review immediately after the literature section.


Input Validation

Valid input: [outcome] + [one exposure or exposure family] + [validation direction / emphasis] Optional additions: exposure screening panel, ancestry-matched design, public-summary-statistics-only, stronger sensitivity analyses, one primary exposure only, MVMR upgrade, reverse-MR upgrade, stricter instrument rule, preferred config level.

Examples:

  • "Endometriosis with dietary factors, need a two-sample MR screening plan."
  • "CAD plus circulating cytokines, Standard, ancestry matched."
  • "T2D with sleep traits, want IVW + sensitivity + publication path."
  • "IBD plus gut-microbiome-related metabolites, Advanced with MVMR option."

Read the full file on GitHub · 254 lines

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. 9d ago First seen · 254 lines · 127 tokens per session scan A ef352fdfa54c

Subscribe to this mod's changes

two-sample-mr-exposure-screening-reference-grounded is a skill published in the GitHub repository aipoch/medical-research-skills (1,869 stars, last pushed today), licensed MIT. It adds 127 tokens to every session and 3,609 once invoked, about $0.0006 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 2026-09-03.

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