scanpy

scanpy is a skill for Claude Code, Codex from dralkh/iktinah. It costs 93 tokens per session (5,421 once invoked), scanned A, a copy of scanpy, MIT.

A Python toolkit for analysing single-cell RNA sequencing data, where measurements describe gene activity in individual cells.

In plain words
What is it for?
Use it to filter and normalize data, find cell groups, identify marker genes, reduce data to two or three dimensions, and study cell development paths.
Why use it?
It brings quality checks, data cleanup, grouping, and visual analysis into a standard workflow for large single-cell datasets.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to filter and normalize data, find cell groups, identify marker genes, reduce data to two or three dimensions, and study cell development paths.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dralkh/iktinah/scanpy
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 dralkh/iktinah --skill scanpy
Clone the repo
git clone --depth 1 https://github.com/dralkh/iktinah

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/dralkh/iktinah/scanpy/github.svg)](https://agentmods.dev/skills/dralkh/iktinah/scanpy)
Your own site
<a href="https://agentmods.dev/skills/dralkh/iktinah/scanpy"><img src="https://agentmods.dev/badge/skills/dralkh/iktinah/scanpy/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 scanpy

Your own site · 80×15
<a href="https://agentmods.dev/skills/dralkh/iktinah/scanpy"><img src="https://agentmods.dev/badge/skills/dralkh/iktinah/scanpy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,421 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 86% 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 5.1 $0.00093 $0.05421
Opus 5 $0.00046 $0.02710
Sonnet 5 $0.00019 $0.01084
Haiku 4.5 $0.00009 $0.00542

Measured 8d ago against content hash dd17164b3bc6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, 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 8d ago.

The scan reads SKILL.md. This mod also ships 16 executable files (assets/analysis_template.py, scripts/_common.py, scripts/annotate.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

86% identical to scanpy — 259 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.

skills/scanpy/SKILL.md · 512 lines

How it starts

The opening of the file, as written. The whole thing — 512 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.

If the input is an R-native single-cell object (.rds, .RData, Seurat, or SingleCellExperiment), first convert it to .h5ad with R tooling, then load it with Scanpy. Read references/r_interop.md for agent-run installation and conversion instructions across macOS, Linux, and Windows.

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)
  • Working with R-friendly single-cell datasets (.rds, .RData, Seurat, SingleCellExperiment) that need conversion to .h5ad
  • 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

Read the full file on GitHub · 512 lines

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. 8d ago First seen · 512 lines · 93 tokens per session scan A dd17164b3bc6

Subscribe to this mod's changes

scanpy is a skill published in the GitHub repository dralkh/iktinah (77 stars, last pushed 2mo ago), licensed MIT. It adds 93 tokens to every session and 5,421 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to scanpy, differing in 259 lines, and is treated as a copy.

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