Free SKILL.md scraped from GitHub. Clone the repo or copy the file directly into your Claude Code skills directory.
npx versuz@latest install openai-plugins-plugins-life-science-research-skills-gtex-eqtl-skillgit clone https://github.com/openai/plugins.gitcp plugins/SKILL.MD ~/.claude/skills/openai-plugins-plugins-life-science-research-skills-gtex-eqtl-skill/SKILL.md---
name: gtex-eqtl-skill
description: Fetch GTEx single-tissue eQTL associations from one variant input by accepting rsID, GRCh37, or GRCh38 input and resolving to the required GRCh38 query for the GTEx v2 API. Use when a user wants eQTL associations returned as JSON.
---
# Operating rules
- Use Python `requests` for all network calls.
- Accept exactly one of `rsid`, `grch37`, `grch38`, or `variant`, and resolve to a GRCh38 `chrom-pos-ref-alt` query.
- Convert to GTEx `variantId` format: `chr{chrom}_{pos}_{ref}_{alt}_b38`.
- Always return one JSON object (no markdown) as final output.
# Input
Accept JSON on stdin as either:
- A string: `"10-112998590-C-T"` (treated as GRCh38)
- An object:
```json
{
"grch38": "10-112998590-C-T",
"max_results": 200
}
```
Other accepted object forms include:
```json
{
"grch37": "10-114758349-C-T"
}
```
```json
{
"rsid": "rs7903146",
"max_results": 50
}
```
Allowed variant separators include `-`, `:`, `_`, `/`, or whitespace, for example:
- `10-112998590-C-T`
- `10:112998590-C-T`
- `10:112998590:C:T`
- `chr10 112998590 C T`
`max_results` is optional and truncates returned eQTL rows when provided.
# Output
Success shape:
```json
{
"ok": true,
"source": "gtex-v2",
"input": {"type": "grch38", "value": "10-112998590-C-T"},
"query_variant": {
"chr": "10",
"pos": 112998590,
"ref": "C",
"alt": "T",
"canonical": "10:112998590-C-T",
"variant_id": "chr10_112998590_C_T_b38"
},
"eqtl_count": 2,
"eqtl_count_total": 2,
"truncated": false,
"eqtls": [],
"paging_info": {},
"warnings": []
}
```
Failure shape:
```json
{
"ok": false,
"error": {"code": "...", "message": "..."},
"warnings": []
}
```
# Execution
Use:
- `scripts/gtex_eqtl.py`
The script reads JSON from stdin and prints JSON to stdout.
Example:
```bash
echo '{"grch38":"10-112998590-C-T","max_results":5}' | python scripts/gtex_eqtl.py
```