A specialized tool for designing efficient and specific gRNA sequences for CRISPR-Cas9 experiments.
Scanned 2/12/2026
Install to Claude Code
npx -y skills add majiayu000/claude-skill-registry --skill crispr-design-agent --agent claude-codeInstalls into .claude/skills of the current project.
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---name: crispr-design-agent
description: A specialized tool for designing efficient and specific gRNA sequences for CRISPR-Cas9 experiments.
license: MIT
metadata:
author: AI Group
version: "1.0.0"
compatibility:
- system: Python 3.10+
allowed-tools:
- run_shell_command
- read_file
keywords:
- crispr-design-agent
- automation
- biomedical
measurable_outcome: execute task with >95% success rate.
---"
# CRISPR Design Agent
The **CRISPR Design Agent** automates the selection of guide RNAs (gRNAs) for gene editing. It scans DNA sequences for PAM sites, extracts spacers, and scores them based on efficiency rules (GC content, homopolymers).
## When to Use This Skill
* When designing a CRISPR knockout or knock-in experiment.
* To find all valid Cas9 target sites in a given DNA sequence.
* To filter gRNAs by efficiency scores.
## Core Capabilities
1. **Target Discovery**: Identifies NGG PAM sites.
2. **Efficiency Scoring**: Calculates scores based on GC content and sequence features.
3. **Filtering**: Sorts guides by predicted efficacy.
## Workflow
1. **Input**: Provide a DNA sequence (raw string or FASTA file) and target gene name.
2. **Process**: The agent scans the sequence and applies scoring logic.
3. **Output**: Returns a ranked list of gRNA sequences with coordinates and scores.
## Example Usage
**User**: "Find gRNAs for this sequence: ATCG..."
**Agent Action**:
```bash
python3 Skills/Genomics/CRISPR_Design_Agent/crispr_designer.py \
--sequence "ATGGAGGAGCCGCAGTCAGATCCTAGCGTCGAGCCCCCTCTGAGTCAGGAAACATTTTCAGACCTATGGAAACTGTGAGTGGATCCATTGGAAGGGC" \
--output guides.json
```
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