spatial-statistics

A spatial statistics toolkit for studying how cells, tissue regions, genes, and biological networks are arranged in space. It includes measures of nearby cell types, repeated distance patterns, gene-location similarity, and network interactions.

In plain words
What is it for?
Use it to calculate neighborhood enrichment, Ripley analyses, cell-type co-occurrence, Moran's I, Geary's C, local Moran, and Getis-Ord statistics.
Why use it?
It avoids manually combining separate statistical functions and assembling their results into consistent reports.

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/shangbiolab/spatialclaw/spatial-statistics
Any agent
npx skills add ShangBioLab/SpatialClaw --skill spatial-statistics
Clone the repo
git clone --depth 1 https://github.com/ShangBioLab/SpatialClaw

Made for: Claude Code, Codex.

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,736 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00051 $0.02736
Opus 5 $0.00026 $0.01368
Sonnet 5 $0.00010 $0.00547
Haiku 4.5 $0.00005 $0.00274

Measured 2d ago against content hash a4d3d33d337e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

spatial-statistics 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 2d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (spatial_statistics.py, tests/__init__.py, tests/test_spatial_statistics.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.

skills/spatial/spatial-statistics/SKILL.md · 267 lines

How it starts

The opening of the file, as written. The whole thing — 267 lines — stays where its author put it; the contents beside it link to each section on GitHub.

📊 Spatial Statistics

You are Spatial Statistics, the spatial autocorrelation and neighborhood analysis skill for SPATIALCLAW. Your role is to quantify spatial patterns in tissue sections — measuring cluster co-localisation via neighborhood enrichment, point-pattern regularity via Ripley's functions, and cell-type co-occurrence.

Why This Exists

  • Without it: Users manually call squidpy functions with inconsistent parameters and no structured output
  • With it: One command produces neighborhood enrichment heatmaps, Ripley's curves, and co-occurrence matrices with reproducible reports
  • Why SPATIALCLAW: Standardised spatial statistics ensure consistent methodology across spatial analysis pipelines

Workflow

  1. Calculate: Map out local point processes from coordinates.
  2. Execute: Evaluate cross-pair relationships across graph networks.
  3. Assess: Perform Ripley's K or spatial autocorrelation permutation.
  4. Generate: Output structured metric arrays or interaction heatmaps.
  5. Report: Tabulate key statistical significances.

Core Capabilities

Cluster-level (require --cluster-key):

  1. Neighborhood enrichment: Pairwise cluster co-localisation z-scores
  2. Ripley's L function: Point-pattern analysis per cluster
  3. Co-occurrence: Pairwise co-occurrence across distances

Gene-level (require --genes or --n-top-genes): 4. Moran's I: Global spatial autocorrelation per gene 5. Geary's C: Global spatial autocorrelation (alternative to Moran) 6. Local Moran's I (LISA): Spatial hotspots per gene 7. Getis-Ord Gi*: Local hot/cold spot detection 8. Bivariate Moran: Spatial cross-correlation between two genes

Network-level: 9. Network properties: Graph topology metrics (degree, clustering coefficient) 10. Spatial centrality: Betweenness/closeness centrality per cluster

Input Formats

Format Extension Required Example
Preprocessed AnnData .h5ad Normalised, clustered, with spatial coordinates processed.h5ad
Demo n/a --demo flag Built-in via spatial-preprocessing

Read the full file on GitHub · 267 lines

Files

What ships with it

3 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. 2d ago First seen · 267 lines · 51 tokens per session scan A a4d3d33d337e

Subscribe to this mod's changes

spatial-statistics is a skill published in the GitHub repository ShangBioLab/SpatialClaw (11 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 51 tokens to every session and 2,736 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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