Agent skill

Sequence

by lamm-mit in lamm-mit/scienceclaw

Analyze biological sequences using Biopython - translate, align, parse FASTA/GenBank

Apache-2.0Auto-check passedResearch & Science

Install Sequence

skills CLI
$ npx skills add lamm-mit/scienceclaw --skill sequence -a claude-code

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

GitHub CLI
$ gh skill install lamm-mit/scienceclaw sequence --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/lamm-mit/scienceclaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sequence .claude/skills/sequence && 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
sequence
GitHub stars
244
Token cost
~1.1k tokens
SKILL.md length
351 words
Files
3 (incl. scripts)
Skills in repo
85
Repo updated
First seen
Licence
Apache-2.0

At a glance

Analyze biological sequences using Biopython - translate, align, parse FASTA/GenBank

  • Tasks that involve Bioinformatics
  • SKILL.md covers Overview, Usage, Commands and Examples, plus 3 more sections
  • Runs Python scripts from its folder; calls python3

What it does

Sequence is an agent skill from lamm-mit/scienceclaw. Analyze biological sequences using Biopython - translate, align, parse FASTA/GenBank

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `scripts/sequence_tools.py`).

It sits in Research & Science, covering Bioinformatics. It works with NCBI and Biopython. The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Bioinformatics

Example prompts

  • “/sequence”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit ab9aba1. 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

    Ships 2 files in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python3

    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

Sequence loads about 1.1k tokens when it runs. Until then it costs about 23 tokens; SKILL.md has 351 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~23
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

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); the scripts in this folder are not scanned.

SKILL.md

The full file from lamm-mit/scienceclaw at commit ab9aba1, republished under its Apache-2.0 licence (© lamm-mit). 351 words, ~1,104 tokens.

Download SKILL.mdSave it as .claude/skills/sequence/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
sequence
description
Analyze biological sequences using Biopython - translate, align, parse FASTA/GenBank

Sequence Analysis

Analyze biological sequences using Biopython. Translate DNA, compute statistics, parse sequence files, and perform basic alignments.

Overview

This skill provides sequence analysis capabilities including:

  • DNA/RNA translation to protein
  • Sequence statistics (GC content, molecular weight, etc.)
  • Reverse complement
  • FASTA/GenBank file parsing
  • Sequence alignment
  • Motif searching

Usage

Translate DNA to protein:
bash
python3 {baseDir}/scripts/sequence_tools.py translate --sequence "ATGCGATCGATCGATCG"
Compute sequence statistics:
bash
python3 {baseDir}/scripts/sequence_tools.py stats --sequence "ATGCGATCGATCGATCG"
Get reverse complement:
bash
python3 {baseDir}/scripts/sequence_tools.py revcomp --sequence "ATGCGATCGATCG"
Parse FASTA file:
bash
python3 {baseDir}/scripts/sequence_tools.py parse --file sequences.fasta --format fasta
Find ORFs:
bash
python3 {baseDir}/scripts/sequence_tools.py orfs --sequence "ATGCGATCGATCGATCGTAG"
Search for motif:
bash
python3 {baseDir}/scripts/sequence_tools.py motif --sequence "ATGCGATCGATCG" --pattern "GATC"

Commands

translate

Translate DNA/RNA sequence to protein.

ParameterDescriptionDefault
--sequenceDNA/RNA sequence or fileRequired
--tableCodon table (1=standard, 2=mitochondrial, etc.)1
--frameReading frame (1, 2, 3, -1, -2, -3)1
--all-framesTranslate all 6 reading framesFalse
--to-stopTranslate until first stop codonFalse
stats

Compute sequence statistics.

ParameterDescriptionDefault
--sequenceSequence or fileRequired
--typeSequence type: dna, rna, protein, autoauto

Output includes:

  • Length
  • GC content (nucleotide)
  • Molecular weight
  • Base/amino acid composition
revcomp

Get reverse complement of DNA sequence.

ParameterDescription
--sequenceDNA sequence or file
parse

Parse sequence files (FASTA, GenBank, etc.).

ParameterDescriptionDefault
--fileInput file pathRequired
--formatFile format: fasta, genbank, emblauto
--outputOutput format: summary, fasta, jsonsummary
orfs

Find Open Reading Frames.

ParameterDescriptionDefault
--sequenceDNA sequence or fileRequired
--min-lengthMinimum ORF length (codons)30
--tableCodon table1
Show full SKILL.md (141 more words)Show less
motif

Search for sequence motifs/patterns.

ParameterDescriptionDefault
--sequenceSequence to searchRequired
--patternPattern to find (supports IUPAC codes)Required

Examples

Translate with specific codon table:
bash
python3 {baseDir}/scripts/sequence_tools.py translate --sequence "ATGCGATCG" --table 2
Get stats for protein sequence:
bash
python3 {baseDir}/scripts/sequence_tools.py stats --sequence "MTEYKLVVVGAGGVGKSALTIQLIQ" --type protein
Parse GenBank file and extract sequences:
bash
python3 {baseDir}/scripts/sequence_tools.py parse --file gene.gb --format genbank --output fasta
Find all ORFs with minimum 50 codons:
bash
python3 {baseDir}/scripts/sequence_tools.py orfs --file genome.fasta --min-length 50
Translate all 6 reading frames:
bash
python3 {baseDir}/scripts/sequence_tools.py translate --sequence "ATGCGATCGATCGATCG" --all-frames

Codon Tables

IDDescription
1Standard
2Vertebrate Mitochondrial
3Yeast Mitochondrial
4Mold/Protozoan Mitochondrial
5Invertebrate Mitochondrial
6Ciliate Nuclear
11Bacterial/Archaeal/Plant Plastid

IUPAC Codes

Nucleotides
  • R = A or G (purine)
  • Y = C or T (pyrimidine)
  • S = G or C
  • W = A or T
  • K = G or T
  • M = A or C
  • N = any nucleotide
Amino Acids
  • X = any amino acid
  • B = D or N
  • Z = E or Q

Notes

  • Sequences can be provided directly or as file paths
  • Auto-detection identifies DNA/RNA/protein sequences
  • Large files are processed efficiently with streaming

© lamm-mit, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (scripts) in skills/sequence of lamm-mit/scienceclaw.

  • SKILL.md
  • scripts/__pycache__/sequence_tools.cpython-313.pyc
  • scripts/sequence_tools.py

Open the folder on GitHubat commit ab9aba1

Compare with similar skills

Sequence 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.

Sequence compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sequence this skilllamm-mit/scienceclaw244—~1.1kAutomated safety check: PassApache-2.0
Biopython Bioinformaticsaiming-lab/AutoResearchClaw15k—~810Automated safety check: PassMIT
Bio Write SequencesGPTomics/bioSkills1.2k3 repos~2.1kAutomated safety check: PassMIT
Biopythondavila7/claude-code-templates32k13 repos~3.4kAutomated safety check: PassMIT
BiopythonK-Dense-AI/scientific-agent-skills48k1 repos~4.3kAutomated safety check: NotesMIT
Tooluniverse Phylogeneticswu-yc/LabClaw1.1k2 repos~4.2kAutomated safety check: PassNone

Similar skills

  • Biopython Bioinformatics

    aiming-lab/AutoResearchClaw

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

    15k GitHub stars~810 tokensUpdated 1 mo ago
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  • Bio Write Sequences

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    Write biological sequences to files (FASTA, FASTQ, GenBank, EMBL) using Biopython Bio.SeqIO.

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    32k GitHub starsUsed in 13 repos~3.4k tokens
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  • Biopython

    K-Dense-AI/scientific-agent-skills

    Provides Biopython workflows for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez).

    48k GitHub starsUsed in 1 repo~4.3k tokens
    Research & ScienceAuto-check: notes
  • Production-ready phylogenetics and sequence analysis skill for alignment processing, tree analysis, and evolutionary metrics.

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    Research & ScienceAuto-check passed
  • Bio Blast Searches

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    Run remote BLAST searches against NCBI servers using Biopython Bio.Blast.NCBIWWW.

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Works with

Questions about Sequence

What does Sequence do?

Analyze biological sequences using Biopython - translate, align, parse FASTA/GenBank. Sequence is an agent skill from lamm-mit/scienceclaw.

When should I use Sequence?

Sequence fits situations like: tasks that involve Bioinformatics.

How do I install Sequence in Claude Code?

Run `npx skills add lamm-mit/scienceclaw --skill sequence -a claude-code`. Or copy the skill folder (skills/sequence in lamm-mit/scienceclaw) into .claude/skills/sequence in your project. Claude Code loads it when a task matches its description.

How do I install Sequence in Codex?

Run `npx skills add lamm-mit/scienceclaw --skill sequence -a codex`. Or copy the skill folder (skills/sequence in lamm-mit/scienceclaw) into .agents/skills/sequence in your project. Codex loads it when a task matches its description.

Can I use Sequence 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 lamm-mit/scienceclaw --skill sequence -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sequence, .gemini/skills/sequence, .github/skills/sequence and .opencode/skills/sequence in your project.

What does Sequence need to run?

Going by SKILL.md and its folder, Sequence needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.

Does Sequence 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 Sequence 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Sequence use?

Sequence is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sequence use?

About 1.1k tokens (SKILL.md is roughly 4.4k 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 Sequence?

Skills that share tags, products or a category with Sequence: Biopython Bioinformatics (aiming-lab/AutoResearchClaw, 15k stars), Bio Write Sequences (GPTomics/bioSkills, 1.2k stars), Biopython (davila7/claude-code-templates, 32k stars) and Biopython (K-Dense-AI/scientific-agent-skills, 48k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sequence?

lamm-mit (a GitHub user) maintains it in lamm-mit/scienceclaw, which has 244 GitHub stars. The repository holds 85 skills in this directory. The repository was last updated on August 21, 2026.

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