ols4: The EMBL-EBI Ontology Lookup Service (OLS)

by EBISPOT · MCP Server · ★ 106

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Security audit verdict: SAFE · quality 55/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

embeddingsfair-dataknowledge-graphknowledge-managementknowledge-representationmcpmcp-serverontologiesowlsemantic-search

Quick Facts

Stars106
Forks48
LanguageJava
CategoryMCP Server
LicenseApache-2.0
Quality Score55/100
Open Issues61
Last Updated2026-10-16
Created2022-05-25
Platformsjava, mcp
Est. Tokens~18k

About ols4

The Ontology Lookup Service (OLS) is a repository for biomedical ontologies that aims to provide a single point of access to the latest ontology versions. It provides a website, REST API, and MCP server.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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