Files
awesome-copilot/skills/phoenix-evals/SKILL.md
T
Stephen Benjamin 4214189287 fix: repair broken skill references, fence nesting, and invisible unicode (#2568)
While implementing the Agent Plugin v1 spec in https://github.com/stbenjam/skillsaw/pull/483, I used this repository as a canonical real-world source for tests. Along the way its checks surfaced genuine correctness issues worth fixing regardless of tooling:

- Internal links that do not resolve (22): wrong relative paths, links whose targets are runtime output paths rather than bundled files (now inline code), a schemeless external URL parsed as a relative path, and links to files that do not exist (removed).

- Bundled skill files never referenced from their SKILL.md (14): each is now cited from the section where it is used, so nothing ships unreachable from the skill's instructions.

- Unclosed or mis-nested code fences (11): markdown templates embedding code blocks now use four-backtick outer fences so inner fences nest instead of closing the template early and leaking example content as live markdown; also removed stray orphan fences and closed an unterminated block at end of file.

- Invisible unicode (1): removed a zero-width space from a code example, a copy-paste artifact invisible to reviewers.
2026-08-07 02:01:43 +00:00

4.5 KiB

name, description, license, compatibility, metadata
name description license compatibility metadata
phoenix-evals Build and run evaluators for AI/LLM applications using Phoenix. Apache-2.0 Requires Phoenix server. Python skills need phoenix and openai packages; TypeScript skills need @arizeai/phoenix-client.
author version languages
oss@arize.com 1.0.0 Python, TypeScript

Phoenix Evals

Build evaluators for AI/LLM applications. Code first, LLM for nuance, validate against humans.

Quick Reference

Task Files
Setup setup-python, setup-typescript
Decide what to evaluate evaluators-overview
Choose a judge model fundamentals-model-selection
Use pre-built evaluators evaluators-pre-built
Build code evaluator evaluators-code-python, evaluators-code-typescript
Build LLM evaluator evaluators-llm-python, evaluators-llm-typescript, evaluators-custom-templates
Batch evaluate DataFrame evaluate-dataframe-python
Understand experiments experiments-overview
Run experiment experiments-running-python, experiments-running-typescript
Create dataset experiments-datasets-python, experiments-datasets-typescript
Generate synthetic data experiments-synthetic-python, experiments-synthetic-typescript
Validate evaluator accuracy validation, validation-evaluators-python, validation-evaluators-typescript
Sample traces for review observe-sampling-python, observe-sampling-typescript
Analyze errors error-analysis, error-analysis-multi-turn, axial-coding
RAG evals evaluators-rag
Avoid common mistakes common-mistakes-python, fundamentals-anti-patterns
Production production-overview, production-guardrails, production-continuous

Workflows

Starting Fresh: observe-tracing-setuperror-analysisaxial-codingevaluators-overview

Building Evaluator: fundamentalscommon-mistakes-python → evaluators-{code|llm}-{python|typescript} → validation-evaluators-{python|typescript}

RAG Systems: evaluators-rag → evaluators-code-* (retrieval) → evaluators-llm-* (faithfulness)

Production: production-overviewproduction-guardrailsproduction-continuous

Reference Categories

Prefix Description
fundamentals-* Types, scores, anti-patterns
observe-* Tracing, sampling
error-analysis-* Finding failures
axial-coding-* Categorizing failures
evaluators-* Code, LLM, RAG evaluators
experiments-* Datasets, running experiments
validation-* Validating evaluator accuracy against human labels
production-* CI/CD, monitoring

Key Principles

Principle Action
Error analysis first Can't automate what you haven't observed
Custom > generic Build from your failures
Code first Deterministic before LLM
Validate judges >80% TPR/TNR
Binary > Likert Pass/fail, not 1-5