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Skills let your coding agent do the ZeroEval setup work for you. Instead of flipping between docs and your editor, you tell your agent “install zeroeval” or “create a judge” and the skill handles the rest in-context. The source lives at zeroeval/zeroeval-skills on GitHub. They work with Cursor, Claude Code, Codex, and 30+ other agents that support the skills format.

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Available skills

zeroeval-install

Installs the SDK (Python or TypeScript), verifies your first trace, migrates prompts to ze.prompt, and recommends starter judges. Routes to custom-tracing for non-SDK languages.

custom-tracing

Send traces to ZeroEval without the SDK. Covers direct REST API ingestion (POST /spans) and OpenTelemetry (OTLP) export for any language.

create-judge

Helps you pick an evaluation type (binary or scored), write a judge template, define criteria, and create the judge via dashboard or API.

prompt-migration

Migrates hardcoded prompts to ze.prompt, wires feedback collection, connects judges, and walks through the staged rollout to prompt optimization.

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Install

# Install all skills
npx skills add zeroeval/zeroeval-skills

# Install a specific skill
npx skills add zeroeval/zeroeval-skills --skill zeroeval-install

# List available skills
npx skills add zeroeval/zeroeval-skills --list
On Windows without symlink support, use npx skills or the manual copy method. The plugins/ directory in the repo contains symlinks that may not resolve on Windows.

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Requirements

  • A ZeroEval account and API key — zeroeval.com
  • SDK path (zeroeval-install): Python 3.8+ or Node 18+, plus an LLM provider SDK (OpenAI, Vercel AI, LangChain, etc.)
  • Direct API / OTLP path (custom-tracing): any language with an HTTP client or OpenTelemetry exporter
The zeroeval-skills GitHub repo has the latest skill content and deeper reference playbooks. This page covers discovery and install only.

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After installation

Once installed, your coding agent picks up the skills automatically. Ask it to “set up zeroeval”, “send traces via API”, “create a judge”, or “migrate my prompts to ze.prompt” and it will use them. If you want to read the product docs directly:

Tracing quickstart

Get your first trace in under 5 minutes

Prompt setup

Add ze.prompt() to your Python or TypeScript codebase

Judges

How calibrated judges evaluate your production traffic

Judge setup

Create and calibrate a judge