database-lookup

database-lookup is a skill for Claude Code from halflifezyf2680/Skill-Shelf. It costs 50 tokens per session (6,619 once invoked), scanned B, original, no licence file.

A search skill for querying 78 public scientific, biomedical, materials, environmental, and economic databases through REST APIs, which are standard web interfaces for requesting data.

In plain words
What is it for?
Use it to look up data about physics, astronomy, earth science, chemistry, drugs, biology, genomics, materials, and related fields.
Why use it?
It avoids searching each database separately or relying on general web results when you need information from named scientific sources.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to look up data about physics, astronomy, earth science, chemistry, drugs, biology, genomics, materials, and related fields.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/halflifezyf2680/skill-shelf/database-lookup
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 halflifezyf2680/Skill-Shelf --skill database-lookup
Clone the repo
git clone --depth 1 https://github.com/halflifezyf2680/Skill-Shelf

Made for: Claude Code.

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 database-lookup

README.md
[![agentmods](https://agentmods.dev/badge/skills/halflifezyf2680/skill-shelf/database-lookup/github.svg)](https://agentmods.dev/skills/halflifezyf2680/skill-shelf/database-lookup)
Your own site
<a href="https://agentmods.dev/skills/halflifezyf2680/skill-shelf/database-lookup"><img src="https://agentmods.dev/badge/skills/halflifezyf2680/skill-shelf/database-lookup/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 database-lookup

Your own site · 80×15
<a href="https://agentmods.dev/skills/halflifezyf2680/skill-shelf/database-lookup"><img src="https://agentmods.dev/badge/skills/halflifezyf2680/skill-shelf/database-lookup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,619 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. 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 $0.00050 $0.06619
Opus 5 $0.00025 $0.03309
Sonnet 5 $0.00010 $0.01324
Haiku 4.5 $0.00005 $0.00662

Measured 4d ago against content hash bda9257890f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

database-lookup scanned grade B with 2 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 4d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

| Open Targets | GraphQL endpoint | `curl -X POST -H "Content-Type: application/json" -d '{"query":"..."}' https://api.platform.opentargets.org/api/v4/graphql` |

Makes network callslowCapability

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

These databases require HTTP POST and **will not work with WebFetch** (GET-only). Use `curl` via your platform's shell tool instead:
data/hub/packages/academic-research/database-lookup/SKILL.md · 404 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

60 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. 4d ago Changed · -77 lines · -192 tokens per session bda9257890f1
  2. 9d ago First seen · 481 lines · 242 tokens per session scan B 748213c9d68a

Subscribe to this mod's changes

database-lookup is a skill published in the GitHub repository halflifezyf2680/Skill-Shelf (4 stars, last pushed 4d ago), with no licence file. It adds 50 tokens to every session and 6,619 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

instrument-data-to-allotrope

Convert laboratory instrument output files (PDF, CSV, Excel, TXT) to Allotrope Simple Model (ASM) JSON format or flattened 2D CSV. Use this skill when scientists need to standardize instrument data for LIMS systems, data lakes, or downstream analysis. Supports auto-detection of instrument types. Outputs include full…

anthropics/knowledge-work-plugins · 123 tokens

exploratory-data-analysis

Perform bounded, local exploratory analysis of explicitly supported scientific files. Use for redacted CSV/TSV/JSON profiles; optional NumPy, HDF5, FASTA/FASTQ, and basic image metadata inspection; missingness/leakage audits; outlier and transformation sensitivity; and rigorous EDA report scaffolds. Other domain…

K-Dense-AI/scientific-agent-skills · 83 tokens

matlab

Build, review, migrate, and safely plan MATLAB or GNU Octave numerical workflows, including arrays, tabular/time data, tests, projects, graphics, MAT files, and explicit Python interoperability.

K-Dense-AI/scientific-agent-skills · 42 tokens

phylogenetics

Build and analyze phylogenetic trees using MAFFT (multiple alignment), IQ-TREE 2 (maximum likelihood), and FastTree (fast NJ/ML). Visualize with ETE3 or FigTree. For evolutionary analysis, microbial genomics, viral phylodynamics, protein family analysis, and molecular clock studies.

K-Dense-AI/scientific-agent-skills · 68 tokens

research-engineer

An uncompromising Academic Research Engineer. Operates with absolute scientific rigor, objective criticism, and zero flair. Focuses on theoretical correctness, formal verification, and optimal implementation across any required technology.

davila7/claude-code-templates · 43 tokens

mapping-to-snomed

Maps clinical concept spans extracted by OpenMed to SNOMED CT concepts through a USER-SUPPLIED terminology server (the user's own Ontoserver, Snowstorm, or UMLS/UTS), never a bundled vocabulary. Use when the user wants to code findings, disorders, procedures, body structures, or substances to SNOMED CT, run an ECL…

maziyarpanahi/openmed · 205 tokens