unichem-database SKILL.md skillA

unichem-database from jaechang-hits/sciagent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jaechang-hits/sciagent-skills/unichem-database@git:20260522.6a6fd41

Pins git:20260522.6a6fd41 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jaechang-hits/sciagent-skills
Path
skills/structural-biology-drug-discovery/unichem-database/SKILL.md
Versions recorded
3
Latest version
git:20260522.6a6fd41, committed May 22, 2026
First version recorded
Feb 18, 2026
Size
35,006 bytes
Repository stars
381
License
a license file GitHub does not identify

Cross-reference compound IDs across 20+ databases (ChEMBL, DrugBank, PubChem, ChEBI, PDB, SureChEMBL, HMDB, DrugCentral, BindingDB) via UniChem REST API. Resolve InChIKeys to source IDs, translate between source-specific IDs, find structurally related compounds by connectivity. POST with a JSON body for all cross-reference queries; only /sources is GET. No auth required.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# UniChem Database

## Overview

UniChem is a chemical structure cross-referencing service from EMBL-EBI that links compound records across 20+ public chemistry databases using InChI-based identifiers.
It maps a single chemical entity to its corresponding IDs in ChEMBL, DrugBank, PubChem, ChEBI, PDB (RCSB and PDBe), SureChEMBL, HMDB, DrugCentral, BindingDB, and others.
Access is via a free REST API at https://www.ebi.ac.uk/unichem/api/v1/ - no API key required.
Important: every cross-reference query is sent as POST with a JSON body; only the catalogue endpoint GET /sources is implemented as a GET.

## When to Use

- Translating a ChEMBL compound ID to a PubChem CID, DrugBank accession, or ChEBI ID for cross-database analysis
- Resolving an InChIKey to all database sources where a compound appears
- Finding all structurally related compounds (same connectivity, different stereochemistry/salts) across databases using connectivity search
- Validating compound identity across sources before merging datasets from multiple databases
- Building a compound cross-reference table for a drug discovery project (linking bioactivity data in ChEMBL to structural data in PDB)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jaechang-hits/sciagent-skills/unichem-database@sha256:b2a3d84224dc0ff9

The line at the top of this page pins the label git:20260522.6a6fd41, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_orve7n2lem4vzxbg.svg)](https://markdownregistry.com/a/art_orve7n2lem4vzxbg)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Feb 18, 2026 and May 22, 2026, about one every 46 days.

versioncommittedcommitsizeaudit
git:20260522.6a6fd41 latest2026-05-22 6a6fd41 35,006 BA view · diff
git:20260428.81ea2d22026-04-28 81ea2d2 29,977 BA view · diff
git:20260218.8df16942026-02-18 8df1694 30,075 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (35006 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

jaechang-hits/sciagent-skills · 381 stars · license a license file GitHub does not identify · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_orve7n2lem4vzxbg
GET https://markdownregistry.com/api/v1/resolve?ref=jaechang-hits/sciagent-skills/unichem-database
GET https://markdownregistry.com/api/v1/blob/b2a3d84224dc0ff9a48bd0a7bff967b598d3f1696d5f7bfd4c6e743630ff5165

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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