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Agent skill

Tooluniverse Sequence Retrieval

by wu-yc in wu-yc/LabClaw

Retrieves biological sequences (DNA, RNA, protein) from NCBI and ENA with gene disambiguation, accession type handling, and comprehensive sequence profiles.

No licenceAuto-check passedResearch & Science

Install Tooluniverse Sequence Retrieval

skills CLI
$ npx skills add wu-yc/LabClaw --skill tooluniverse-sequence-retrieval -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install wu-yc/LabClaw tooluniverse-sequence-retrieval --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/wu-yc/LabClaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/bio/tooluniverse-sequence-retrieval .claude/skills/tooluniverse-sequence-retrieval && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
tooluniverse-sequence-retrieval
GitHub stars
1.1k
Used in
2 other repos
Token cost
~2.7k tokens
SKILL.md length
674 words
Files
1
Skills in repo
68
Repo updated
First seen
Licence
None found

At a glance

Retrieves biological sequences (DNA, RNA, protein) from NCBI and ENA with gene disambiguation, accession type handling, and comprehensive sequence profiles.

  • Works in 4 steps: Clarification (When Needed) → Gene/Organism Disambiguation → Data Retrieval (Internal) → …
  • Users need nucleotide sequences
  • SKILL.md covers Workflow Overview, Phase 0: Clarification (When…, Phase 1: Gene/Organism… and Phase 2: Data Retrieval…, plus 7 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Tooluniverse Sequence Retrieval is an agent skill from wu-yc/LabClaw. Retrieves biological sequences (DNA, RNA, protein) from NCBI and ENA with gene disambiguation, accession type handling, and comprehensive sequence profiles. Creates detailed reports with sequence metadata, cross-database references, and download options. Use when users need nucleotide sequences, protein sequences, genome data, or mention GenBank, RefSeq, EMBL accessions.

Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Research & Science, covering Bioinformatics. It works with NCBI. The repository describes itself as: LabClaw – Operating Layer for LabOS (Stanford-Princeton AI Co-Scientists).

When your agent uses it

  • Users need nucleotide sequences
  • Protein sequences
  • Mention GenBank
  • EMBL accessions

Example prompts

  • “Use the tooluniverse-sequence-retrieval skill to retrieve biological sequences (DNA, RNA, protein) from NCBI and ENA with gene disambiguation…”
  • “/tooluniverse-sequence-retrieval”

Requirements

  • Python 3

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Clarification (When Needed)
  2. Gene/Organism Disambiguation
  3. Data Retrieval (Internal)
  4. Report Sequence Profile

What it can do on your machine

Read from SKILL.md and the folder at commit df37802. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are python and markdown).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Tooluniverse Sequence Retrieval loads about 2.7k tokens when it runs. Until then it costs about 101 tokens; SKILL.md has 674 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~101
When it runs · the whole SKILL.md, loaded when a task matches
~2.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 674 words (~2,740 tokens).

“Retrieve DNA, RNA, and protein sequences with proper disambiguation and cross-database handling.”

— opening of SKILL.md by wu-yc
name
tooluniverse-sequence-retrieval

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/bio/tooluniverse-sequence-retrieval of wu-yc/LabClaw.

Open the folder on GitHubat commit df37802

Used in 2 other repositories

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in wu-yc/LabClaw, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Tooluniverse Sequence Retrieval next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Tooluniverse Sequence Retrieval compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Tooluniverse Sequence Retrieval this skillwu-yc/LabClaw1.1k2 repos~2.7kAutomated safety check: PassNone
Dbsnp Databasegoogle-deepmind/science-skills3.2k2 repos~3.4kAutomated safety check: NotesApache-2.0
Biopython Bioinformaticsaiming-lab/AutoResearchClaw15k—~810Automated safety check: PassMIT
Bio Write SequencesGPTomics/bioSkills1.2k3 repos~2.1kAutomated safety check: PassMIT
ETE Toolkit for Phylogenetic Treesdavila7/claude-code-templates33k11 repos~4.5kAutomated safety check: NotesMIT
Biopythondavila7/claude-code-templates33k12 repos~3.4kAutomated safety check: PassMIT

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  • Biopython Bioinformatics

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    Quick reference for Biopython work: sequence operations, SeqIO file parsing, BLAST searches, Entrez queries, phylogenetic trees and PDB structure analysis.

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  • Bio Write Sequences

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All 68 skills in this repo

  • Tooluniverse Chemical Compound Retrieval

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  • Tooluniverse Clinical Guidelines

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  • Tooluniverse Disease Research

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    Generate comprehensive disease research reports using 100+ ToolUniverse tools.

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  • Tooluniverse Drug Repurposing

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    Identify drug repurposing candidates using ToolUniverse for target-based, compound-based, and disease-driven strategies.

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  • Tooluniverse Expression Data Retrieval

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    Retrieves gene expression and omics datasets from ArrayExpress and BioStudies with gene disambiguation, experiment quality assessment, and structured reports.

    1.1k GitHub starsUsed in 2 repos~2.6k tokens
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  • Tooluniverse Gene Enrichment

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    Perform comprehensive gene enrichment and pathway analysis using gseapy (ORA and GSEA), PANTHER, STRING, Reactome, and 40+ ToolUniverse tools.

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Works with

Categories

Questions about Tooluniverse Sequence Retrieval

What does Tooluniverse Sequence Retrieval do?

Retrieves biological sequences (DNA, RNA, protein) from NCBI and ENA with gene disambiguation, accession type handling, and comprehensive sequence profiles. Tooluniverse Sequence Retrieval is an agent skill from wu-yc/LabClaw. Retrieves biological sequences (DNA, RNA, protein) from NCBI and ENA with gene disambiguation, accession type handling, and comprehensive sequence profiles.

When should I use Tooluniverse Sequence Retrieval?

Tooluniverse Sequence Retrieval fits situations like: users need nucleotide sequences; protein sequences; mention GenBank; EMBL accessions.

How do I install Tooluniverse Sequence Retrieval in Claude Code?

Run `npx skills add wu-yc/LabClaw --skill tooluniverse-sequence-retrieval -a claude-code`. Or copy the skill folder (skills/bio/tooluniverse-sequence-retrieval in wu-yc/LabClaw) into .claude/skills/tooluniverse-sequence-retrieval in your project. Claude Code loads it when a task matches its description.

How do I install Tooluniverse Sequence Retrieval in Codex?

Run `npx skills add wu-yc/LabClaw --skill tooluniverse-sequence-retrieval -a codex`. Or copy the skill folder (skills/bio/tooluniverse-sequence-retrieval in wu-yc/LabClaw) into .agents/skills/tooluniverse-sequence-retrieval in your project. Codex loads it when a task matches its description.

Can I use Tooluniverse Sequence Retrieval in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add wu-yc/LabClaw --skill tooluniverse-sequence-retrieval -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tooluniverse-sequence-retrieval, .gemini/skills/tooluniverse-sequence-retrieval, .github/skills/tooluniverse-sequence-retrieval and .opencode/skills/tooluniverse-sequence-retrieval in your project.

What does Tooluniverse Sequence Retrieval need to run?

SKILL.md names no scripts, command-line tools or credentials: Tooluniverse Sequence Retrieval is instructions for the agent only. Our summary lists: Python 3.

Does Tooluniverse Sequence Retrieval access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Tooluniverse Sequence Retrieval safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Tooluniverse Sequence Retrieval use?

No licence was found for Tooluniverse Sequence Retrieval or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Tooluniverse Sequence Retrieval use?

About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Tooluniverse Sequence Retrieval?

Skills that share tags, products or a category with Tooluniverse Sequence Retrieval: Dbsnp Database (google-deepmind/science-skills, 3.2k stars), Biopython Bioinformatics (aiming-lab/AutoResearchClaw, 15k stars), Bio Write Sequences (GPTomics/bioSkills, 1.2k stars) and ETE Toolkit for Phylogenetic Trees (davila7/claude-code-templates, 33k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Tooluniverse Sequence Retrieval?

wu-yc (a GitHub user) maintains it in wu-yc/LabClaw, which has 1,055 GitHub stars. The repository holds 68 skills in this directory. The repository was last updated on March 19, 2026.

Source: wu-yc/LabClaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.