biopython-databases

biopython-databases is a skill for Claude Code, Codex from Pavel-Kravchenko/Bioinformatics. It costs 62 tokens per session (2,908 once invoked), scanned A, original, no licence file.

A guide to retrieving biological records from databases such as NCBI, UniProt, PDB, and Ensembl using BioPython. It also covers reading and writing sequence files including FASTA, GenBank, and FASTQ.

In plain words
What is it for?
Use it to fetch sequences by accession or gene name, download many records, and convert sequence files between formats.
Why use it?
It removes the need to download records manually or write separate file-conversion code for each sequence format.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to fetch sequences by accession or gene name, download many records, and convert sequence files between formats.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pavel-kravchenko/bioinformatics/biopython-databases
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 Pavel-Kravchenko/Bioinformatics --skill biopython-databases
Clone the repo
git clone --depth 1 https://github.com/Pavel-Kravchenko/Bioinformatics

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 biopython-databases

README.md
[![agentmods](https://agentmods.dev/badge/skills/pavel-kravchenko/bioinformatics/biopython-databases/github.svg)](https://agentmods.dev/skills/pavel-kravchenko/bioinformatics/biopython-databases)
Your own site
<a href="https://agentmods.dev/skills/pavel-kravchenko/bioinformatics/biopython-databases"><img src="https://agentmods.dev/badge/skills/pavel-kravchenko/bioinformatics/biopython-databases/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 biopython-databases

Your own site · 80×15
<a href="https://agentmods.dev/skills/pavel-kravchenko/bioinformatics/biopython-databases"><img src="https://agentmods.dev/badge/skills/pavel-kravchenko/bioinformatics/biopython-databases.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,908 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00062 $0.02908
Opus 5 $0.00031 $0.01454
Sonnet 5 $0.00012 $0.00582
Haiku 4.5 $0.00006 $0.00291

Measured 5d ago against content hash 2787c8229698, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

biopython-databases scanned grade A with 1 finding 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 5d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- stdlib `urllib.request` / `json` for the UniProt, PDB, and Ensembl REST calls (no extra dependencies needed)
Skills/biopython-databases/SKILL.md · 261 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 261 lines · 62 tokens per session scan A 2787c8229698

Subscribe to this mod's changes

biopython-databases is a skill published in the GitHub repository Pavel-Kravchenko/Bioinformatics (5 stars, last pushed 2mo ago), with no licence file. It adds 62 tokens to every session and 2,908 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.