statnet

statnet is a skill for Claude Code, Codex from LeoLin990405/r-analytics-skill. It costs 22 tokens per session (1,076 once invoked), scanned A, original, MIT.

An R toolkit for analysing networks—sets of connected people, objects, or events—including statistical models called exponential random graph models (ERGMs).

In plain words
What is it for?
Use it to calculate network statistics and fit ERGMs to study why connections form or differ across networks.
Why use it?
It provides standard measures and models for understanding patterns such as centrality, reciprocity, triangles, and links to node or edge attributes.

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/leolin990405/r-analytics-skill/statnet
Any agent
npx skills add LeoLin990405/r-analytics-skill --skill statnet
Clone the repo
git clone --depth 1 https://github.com/LeoLin990405/r-analytics-skill

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 statnet

README.md
[![agentmods](https://agentmods.dev/badge/skills/leolin990405/r-analytics-skill/statnet.svg)](https://agentmods.dev/skills/leolin990405/r-analytics-skill/statnet)
Your own site
<a href="https://agentmods.dev/skills/leolin990405/r-analytics-skill/statnet"><img src="https://agentmods.dev/badge/skills/leolin990405/r-analytics-skill/statnet.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,076 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 $0.00022 $0.01076
Opus 5 $0.00011 $0.00538
Sonnet 5 $0.00004 $0.00215
Haiku 4.5 $0.00002 $0.00108

Measured yesterday against content hash 437c041127c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

statnet 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.

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.

sub-skills/r-network/r-network-analysis/statnet/SKILL.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

statnet

Statistical analysis of network data.

Installation

# Install statnet suite
install.packages("statnet")

# Load
library(statnet)
# Loads: network, sna, ergm, tergm, networkDynamic, etc.

Network Descriptives (sna)

library(sna)

# Centrality measures
degree(net)
degree(net, cmode = "indegree")
degree(net, cmode = "outdegree")

betweenness(net)
closeness(net)
evcent(net)  # Eigenvector centrality

# Network-level measures
gden(net)      # Density
grecip(net)    # Reciprocity
gtrans(net)    # Transitivity
centralization(net, degree)

ERGM (Exponential Random Graph Models)

library(ergm)

# Fit basic ERGM
fit <- ergm(net ~ edges)

# With structural terms
fit <- ergm(net ~ edges + mutual + triangle)

# With node attributes
fit <- ergm(net ~ edges + nodematch("gender") + nodecov("age"))

# With edge attributes
fit <- ergm(net ~ edges + edgecov(covariate_matrix))

# Summary
summary(fit)

ERGM Terms

# Structural terms
edges           # Number of edges
mutual          # Mutual ties (reciprocity)
triangle        # Triangles
gwesp(0.5)      # Geometrically weighted ESP
gwdegree(0.5)   # Geometrically weighted degree
kstar(2)        # 2-stars

# Attribute terms
nodematch("attr")      # Homophily
nodemix("attr")        # Mixing patterns
nodecov("attr")        # Node covariate (continuous)
nodefactor("attr")     # Node factor (categorical)
absdiff("attr")        # Absolute difference

# Dyadic terms
edgecov(matrix)        # Edge covariate

ERGM Diagnostics

# MCMC diagnostics
mcmc.diagnostics(fit)

# Goodness of fit
gof_result <- gof(fit)
plot(gof_result)

# Simulate from model
sim_nets <- simulate(fit, nsim = 100)

TERGM (Temporal ERGM)

library(tergm)

# Create network list
net_list <- list(net_t1, net_t2, net_t3)

# Fit STERGM (separable temporal ERGM)
fit <- stergm(
  net_list,
  formation = ~ edges + mutual,
  dissolution = ~ edges,
  estimate = "CMLE"
)

# Summary
summary(fit)

Network Visualization (sna)

Read the full file on GitHub · 207 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. yesterday First seen · 207 lines · 22 tokens per session scan A 437c041127c4

Subscribe to this mod's changes

statnet is a skill published in the GitHub repository LeoLin990405/r-analytics-skill (5 stars, last pushed 5mo ago), licensed MIT. It adds 22 tokens to every session and 1,076 once invoked, about $0.0001 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 2026-09-03.

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