scikit-survival

scikit-survival is a skill for Claude Code, Codex from AndyZhuang/Opentest. It costs 91 tokens per session (3,766 once invoked), scanned A, a copy of scikit-survival, MIT.

A Python toolkit for analysing how long it takes for an event to happen, including cases where the event has not yet been observed.

In plain words
What is it for?
Use it to fit Cox models and other survival models, estimate survival curves, analyse competing risks, and evaluate time-to-event predictions.
Why use it?
It handles censored data, where a study ends or an observation stops before the event occurs, without treating that record as a normal completion.

Skill for Claude CodeCodex

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

Good fit Use it to fit Cox models and other survival models, estimate survival curves, analyse competing risks, and evaluate time-to-event predictions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/andyzhuang/opentest/scikit-survival
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 AndyZhuang/Opentest --skill scikit-survival
Clone the repo
git clone --depth 1 https://github.com/AndyZhuang/Opentest

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 scikit-survival

README.md
[![agentmods](https://agentmods.dev/badge/skills/andyzhuang/opentest/scikit-survival/github.svg)](https://agentmods.dev/skills/andyzhuang/opentest/scikit-survival)
Your own site
<a href="https://agentmods.dev/skills/andyzhuang/opentest/scikit-survival"><img src="https://agentmods.dev/badge/skills/andyzhuang/opentest/scikit-survival/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 scikit-survival

Your own site · 80×15
<a href="https://agentmods.dev/skills/andyzhuang/opentest/scikit-survival"><img src="https://agentmods.dev/badge/skills/andyzhuang/opentest/scikit-survival.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,766 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 91% 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 $0.00091 $0.03766
Opus 5 $0.00046 $0.01883
Sonnet 5 $0.00018 $0.00753
Haiku 4.5 $0.00009 $0.00377

Measured 8d ago against content hash 8740633939e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

scikit-survival 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.

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

91% identical to scikit-survival — 6 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/labclaw/general/scikit-survival/SKILL.md · 399 lines

How it starts

The opening of the file, as written. The whole thing — 399 lines — stays where its author put it; the contents beside it link to each section on GitHub.

scikit-survival: Survival Analysis in Python

Overview

scikit-survival is a Python library for survival analysis built on top of scikit-learn. It provides specialized tools for time-to-event analysis, handling the unique challenge of censored data where some observations are only partially known.

Survival analysis aims to establish connections between covariates and the time of an event, accounting for censored records (particularly right-censored data from studies where participants don't experience events during observation periods).

When to Use This Skill

Use this skill when:

  • Performing survival analysis or time-to-event modeling
  • Working with censored data (right-censored, left-censored, or interval-censored)
  • Fitting Cox proportional hazards models (standard or penalized)
  • Building ensemble survival models (Random Survival Forests, Gradient Boosting)
  • Training Survival Support Vector Machines
  • Evaluating survival model performance (concordance index, Brier score, time-dependent AUC)
  • Estimating Kaplan-Meier or Nelson-Aalen curves
  • Analyzing competing risks
  • Preprocessing survival data or handling missing values in survival datasets
  • Conducting any analysis using the scikit-survival library

Core Capabilities

1. Model Types and Selection

scikit-survival provides multiple model families, each suited for different scenarios:

Cox Proportional Hazards Models

Use for: Standard survival analysis with interpretable coefficients

  • CoxPHSurvivalAnalysis: Basic Cox model
  • CoxnetSurvivalAnalysis: Penalized Cox with elastic net for high-dimensional data
  • IPCRidge: Ridge regression for accelerated failure time models

See: references/cox-models.md for detailed guidance on Cox models, regularization, and interpretation

Ensemble Methods

Use for: High predictive performance with complex non-linear relationships

  • RandomSurvivalForest: Robust, non-parametric ensemble method
  • GradientBoostingSurvivalAnalysis: Tree-based boosting for maximum performance
  • ComponentwiseGradientBoostingSurvivalAnalysis: Linear boosting with feature selection
  • ExtraSurvivalTrees: Extremely randomized trees for additional regularization

Read the full file on GitHub · 399 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 · 399 lines · 91 tokens per session scan A 8740633939e4

Subscribe to this mod's changes

scikit-survival is a skill published in the GitHub repository AndyZhuang/Opentest (22 stars, last pushed 6mo ago), licensed MIT. It adds 91 tokens to every session and 3,766 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to scikit-survival, differing in 6 lines, and is treated as a copy.

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