string-database

string-database is a skill for Claude Code, Codex from AndyZhuang/Opentest. It costs 44 tokens per session (4,368 once invoked), scanned A, a copy of string-database, MIT.

A connection to STRING, a research database of known and predicted relationships between proteins. It can retrieve protein networks and related biological functions across many species.

In plain words
What is it for?
Use it to retrieve protein-interaction networks, find related proteins, compare interactions between species, and analyze whether a protein list is linked to functions or pathways such as those described by GO and KEGG.
Why use it?
It removes the need to collect protein-interaction data from separate sources or manually inspect large protein lists. It helps researchers find possible partners and groups of proteins involved in the same processes.

Skill for Claude CodeCodex

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

Good fit Use it to retrieve protein-interaction networks, find related proteins, compare interactions between species, and analyze whether a protein list is linked to functions or pathways such as those described by GO and KEGG.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/andyzhuang/opentest/string-database
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 AndyZhuang/Opentest --skill string-database
Clone the repo
git clone --depth 1 https://github.com/AndyZhuang/Opentest

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 string-database

README.md
[![agentmods](https://agentmods.dev/badge/skills/andyzhuang/opentest/string-database/github.svg)](https://agentmods.dev/skills/andyzhuang/opentest/string-database)
Your own site
<a href="https://agentmods.dev/skills/andyzhuang/opentest/string-database"><img src="https://agentmods.dev/badge/skills/andyzhuang/opentest/string-database/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 string-database

Your own site · 80×15
<a href="https://agentmods.dev/skills/andyzhuang/opentest/string-database"><img src="https://agentmods.dev/badge/skills/andyzhuang/opentest/string-database.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,368 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.
Origin 92% copy Near-identical to another mod 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 $0.00044 $0.04368
Opus 5.5 $0.00018 $0.01747
Sonnet 5.5 $0.00009 $0.00874
Haiku 4.5 $0.00004 $0.00437

Measured 1mo ago against content hash 1277ac80a4f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

string-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 1mo 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.

Origin

This is a copy

92% identical to string-database — 10 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/labclaw/bio/string-database/SKILL.md · 534 lines

How it starts

The opening of the file, as written. The whole thing — 534 lines — stays where its author put it; the contents beside it link to each section on GitHub.

STRING Database

Overview

STRING is a comprehensive database of known and predicted protein-protein interactions covering 59M proteins and 20B+ interactions across 5000+ organisms. Query interaction networks, perform functional enrichment, discover partners via REST API for systems biology and pathway analysis.

When to Use This Skill

This skill should be used when:

  • Retrieving protein-protein interaction networks for single or multiple proteins
  • Performing functional enrichment analysis (GO, KEGG, Pfam) on protein lists
  • Discovering interaction partners and expanding protein networks
  • Testing if proteins form significantly enriched functional modules
  • Generating network visualizations with evidence-based coloring
  • Analyzing homology and protein family relationships
  • Conducting cross-species protein interaction comparisons
  • Identifying hub proteins and network connectivity patterns

Quick Start

The skill provides:

  1. Python helper functions (scripts/string_api.py) for all STRING REST API operations
  2. Comprehensive reference documentation (references/string_reference.md) with detailed API specifications

When users request STRING data, determine which operation is needed and use the appropriate function from scripts/string_api.py.

Core Operations

1. Identifier Mapping (string_map_ids)

Convert gene names, protein names, and external IDs to STRING identifiers.

When to use: Starting any STRING analysis, validating protein names, finding canonical identifiers.

Usage:

from scripts.string_api import string_map_ids

# Map single protein
result = string_map_ids('TP53', species=9606)

# Map multiple proteins
result = string_map_ids(['TP53', 'BRCA1', 'EGFR', 'MDM2'], species=9606)

# Map with multiple matches per query
result = string_map_ids('p53', species=9606, limit=5)

Parameters:

  • species: NCBI taxon ID (9606 = human, 10090 = mouse, 7227 = fly)
  • limit: Number of matches per identifier (default: 1)
  • echo_query: Include query term in output (default: 1)

Read the full file on GitHub · 534 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. 1mo ago First seen · 534 lines · 44 tokens per session scan A 1277ac80a4f7

Subscribe to this mod's changes

string-database is a skill published in the GitHub repository AndyZhuang/Opentest (22 stars, last pushed 7mo ago), licensed MIT. It adds 44 tokens to every session and 4,368 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 92% identical to string-database, differing in 10 lines, and is treated as a copy.

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