jaspar-database

jaspar-database is a skill for Claude Code, Codex from google-deepmind/science-skills. It costs 81 tokens per session (1,189 once invoked), scanned A, original, Apache-2.0.

Instructions for querying JASPAR, an open database of DNA-binding patterns for transcription factors—proteins that help control which genes are active. It retrieves pattern matrices and information about the corresponding factors.

In plain words
What is it for?
Use it to find transcription-factor profiles, resolve gene symbols to JASPAR IDs, retrieve metadata, and export profiles in formats such as MEME, TRANSFAC, PFM, PWM, JASPAR, or YAML.
Why use it?
It avoids manually searching biological databases or formatting motif data for analysis. It can connect a DNA sequence pattern with possible regulatory proteins.

Skill for Claude CodeCodex

About the project

Science Skills is a collection of add-ons that give AI agents structured instructions, scripts, and references for scientific research, including genomics, structural biology, cheminformatics, and literature search. Researchers use it to guide agents through specialized scientific tasks with information from databases and tools such as AlphaGenome, AFDB, and UniProt. The catalogue entries are individual skills from this collection.

google-deepmind/science-skills · 2,835 stars · on GitHub

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.

agentmods
npx agentmods add skills/google-deepmind/science-skills/jaspar_database
Any agent
npx skills add google-deepmind/science-skills --skill jaspar_database
Clone the repo
git clone --depth 1 https://github.com/google-deepmind/science-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 jaspar-database

README.md
[![agentmods](https://agentmods.dev/badge/skills/google-deepmind/science-skills/jaspar_database.svg)](https://agentmods.dev/skills/google-deepmind/science-skills/jaspar_database)
Your own site
<a href="https://agentmods.dev/skills/google-deepmind/science-skills/jaspar_database"><img src="https://agentmods.dev/badge/skills/google-deepmind/science-skills/jaspar_database.svg" alt="Measured on agentmods" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,189 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00081 $0.01189
Opus 5 $0.00041 $0.00594
Sonnet 5 $0.00016 $0.00238
Haiku 4.5 $0.00008 $0.00119

Measured 5d ago against content hash 5cbe866bfd4c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

jaspar-database 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/jaspar_api.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/jaspar_database/SKILL.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

JASPAR Skill

JASPAR is the definitive open-access database for Transcription Factor (TF) binding profiles, stored as Position Frequency Matrices (PFMs).

Use this skill to map abstract sequence motifs or genomic regions to specific biological regulators (e.g., "what TFs bind here?" or "what is the motif for CTCF?").

Prerequisites

  1. uv: Read the uv skill and follow its Setup instructions to ensure uv is installed and on PATH.
  2. User Notification: If .licenses/jaspar_database_LICENSE.txt does not already exist in the workspace root directory then (1) prominently notify the user to check the terms at https://jaspar.elixir.no/ and https://jaspar.elixir.no/api/, then (2) create the file recording the notification text and timestamp.

Core Rules

CRITICAL: You MUST respect the JASPAR API Terms of Use by adhering to the following:

  • Use the Wrapper: ALWAYS execute the provided helper scripts to query the database rather than accessing the database directly. The scripts automatically enforce the required rate limit gracefully.
  • Maximum API Window Size: The genomic window for a single API query MUST NOT exceed 100,000 bp (100kb). The jaspar_api.py script automatically chunks larger requests for you to bypass this limitation when querying larger regions.
  • Valid Matrix IDs: get_tf_motif, get_tf_metadata, and get_tf_pwm require a stable JASPAR Matrix ID (e.g., MA0488.2). If a user provides a gene symbol (e.g., JUN), you must resolve it first using resolve_tf_id.
  • Taxonomy Required: Resolving IDs requires a tax_id to ensure targeted searches. Common IDs: Human=9606, Mouse=10090.
  • Notification: If this skill is used, ensure this is mentioned in the output.

Utility Scripts

Run all commands using the bundled Python script:

1. Resolve TF to Matrix ID

Maps a transcription factor name to a stable Matrix ID. Required step before fetching motifs if only a gene name is provided.

Read the full file on GitHub · 126 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 126 lines · 81 tokens per session scan A 5cbe866bfd4c

Subscribe to this mod's changes

jaspar-database is a skill published in the GitHub repository google-deepmind/science-skills (2,835 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 81 tokens to every session and 1,189 once invoked, about $0.0004 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 2026-08-30.

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