scanpy

scanpy is a skill for Claude Code, Codex from magic3007/dotfiles. It costs 68 tokens per session (3,620 once invoked), scanned A, a copy of scanpy, MIT.

A Python toolkit for analyzing single-cell RNA sequencing data, which measures gene activity in individual cells. It supports quality checks, normalization, clustering, dimensionality reduction, and gene-expression comparisons.

In plain words
What is it for?
Use it to inspect cell quality, find cell populations, identify marker genes, study trajectories, and create analysis plots.
Why use it?
It provides a standard workflow for turning raw single-cell measurements into groups of cells and biologically meaningful patterns.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/magic3007/dotfiles/scanpy
Any agent
npx skills add magic3007/dotfiles --skill scanpy
Clone the repo
git clone --depth 1 https://github.com/magic3007/dotfiles

Made for: Claude Code, Codex.

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 scanpy

README.md
[![agentmods](https://agentmods.dev/badge/skills/magic3007/dotfiles/scanpy.svg)](https://agentmods.dev/skills/magic3007/dotfiles/scanpy)
Your own site
<a href="https://agentmods.dev/skills/magic3007/dotfiles/scanpy"><img src="https://agentmods.dev/badge/skills/magic3007/dotfiles/scanpy.svg" alt="Measured on agentmods" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,620 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 75% copy Near-identical to another mod 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 $0.00068 $0.03620
Opus 5 $0.00034 $0.01810
Sonnet 5 $0.00014 $0.00724
Haiku 4.5 $0.00007 $0.00362

Measured yesterday against content hash d747e39ee838, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

scanpy scanned grade A with 0 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 yesterday.

The scan reads SKILL.md. This mod also ships 2 executable files (assets/analysis_template.py, scripts/qc_analysis.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

75% identical to scanpy — 349 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

claude/skills/scientific-agent-skills/skills/scanpy/SKILL.md · 436 lines

How it starts

The opening of the file, as written. The whole thing — 436 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Scanpy: Single-Cell Analysis

Overview

Scanpy is a scalable Python toolkit for analyzing single-cell RNA-seq data, built on AnnData. Apply this skill for complete single-cell workflows including quality control, normalization, dimensionality reduction, clustering, marker gene identification, visualization, and trajectory analysis. Current stable release: scanpy 1.12.x (January 2026).

Installation

Requires Python 3.12+ (scanpy 1.12 dropped Python ≤3.11) and anndata ≥0.10.

uv pip install "scanpy[leiden]"

The [leiden] extra installs python-igraph and leidenalg, required for Leiden clustering. For reproducible environments, pin a version: uv pip install "scanpy[leiden]==1.12.1".

For large or out-of-core datasets, many functions support Dask arrays (experimental):

uv pip install "scanpy[leiden]" dask

See the Using dask with Scanpy tutorial. For GPU-accelerated scanpy-like operations, use rapids-singlecell as a separate package.

For AnnData structure and I/O details, use the anndata skill. For probabilistic models and batch correction, use scvi-tools.

When to Use This Skill

This skill should be used when:

  • Analyzing single-cell RNA-seq data (.h5ad, 10X, CSV formats)
  • Performing quality control on scRNA-seq datasets
  • Creating UMAP, t-SNE, or PCA visualizations
  • Identifying cell clusters and finding marker genes
  • Annotating cell types based on gene expression
  • Conducting trajectory inference or pseudotime analysis
  • Generating publication-quality single-cell plots

Quick Start

Basic Import and Setup

import scanpy as sc
import pandas as pd
import numpy as np

# Configure settings
sc.settings.verbosity = 3
sc.settings.set_figure_params(dpi=80, facecolor='white')
sc.settings.figdir = './figures/'
sc.settings.autosave = True  # Preferred over per-plot save= (deprecated in scanpy 1.12)

Read the full file on GitHub · 436 lines

Files

What ships with it

5 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. yesterday First seen · 436 lines · 68 tokens per session scan A d747e39ee838

Subscribe to this mod's changes

scanpy is a skill published in the GitHub repository magic3007/dotfiles (11 stars, last pushed yesterday), licensed MIT. It adds 68 tokens to every session and 3,620 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 75% identical to scanpy, differing in 349 lines, and is treated as a copy.

Related

Other skills, from other repositories

orchestrate-agents

Orchestrate multiple agent CLIs (Claude, Codex, Antigravity) via tmux with a shared fleet store, dispatching one guardian subagent per pane. Survey-first: inspects and adopts existing tmux sessions, windows, and agent panes before creating anything new. Use when running a multi-agent session, dispatching parallel…

urmzd/dotfiles · 83 tokens

assess-quality

Foundational quality framework: the five questions (readable, easy to start, expands without bloat, consistent, intentional) every other dev skill is judged against, plus the dual-audience and workshop principles. Use when onboarding to a project, defining a quality bar, setting an assessment checklist, or arbitrating…

urmzd/dotfiles · 120 tokens

create-oss-skill

Create well-formed Agent Skills following the agentskills.io specification. Scaffold directories, write SKILL.md files, bundle scripts, and structure instructions for progressive disclosure. Use when creating a new skill, reviewing skill structure, optimizing a skill description, or setting up evals for skill quality.

urmzd/dotfiles · 63 tokens

extend-oss-skills-to-claude

Extend standard agentskills.io skills with Claude Code-specific features. Invocation control, subagent execution, dynamic context injection, string substitutions, model/effort overrides, and deployment scoping. Use when adapting a portable skill for Claude Code, adding Claude-specific frontmatter, setting up subagent…

urmzd/dotfiles · 74 tokens

merge-ready

Drive an existing pull request to a mergeable state: get CI green, resolve merge conflicts with the base branch, address and resolve review comments, trigger required bot reviews/approvals (e.g. commenting '@claude review'), link associated issues, and clean up the PR title and description. Ends with a readiness…

urmzd/dotfiles · 208 tokens

scaffold-project

Generates cross-language standard files (README, AGENTS.md, LICENSE, CONTRIBUTING.md, SECURITY.md, sr.yaml, .envrc, llms.txt), documentation conventions, and project structure, then dispatches to language-specific scaffolds. Use first for cross-language standard files and structure, THEN load the matching scaffold…

urmzd/dotfiles · 137 tokens