Skill Claude CodeCodex
Generate synthetic evaluation datasets for the PXI eval harness (evals/pxi/). Use whenever the user asks to create, author, draft, expand, or audit an eval dataset for a PXI tool, skill, or behavior — including phrases like "write evals for ", "test PXI behavior", "synthetic dataset for PXI", "cover this tool with…
Skill Claude CodeCodex
Migrate or upgrade TypeScript tooling in the Phoenix monorepo. Use when upgrading TypeScript versions, switching tools (ESLint to oxlint, Prettier to oxfmt), upgrading bundlers (Vite, esbuild), or making major dependency upgrades. Triggers on requests to migrate, upgrade, or replace TypeScript/JavaScript tooling.
Skill Claude CodeCodex
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance…
Hook Claude Code
Runs after a tool call finishes for Write and Edit tool calls, running an inline shell check (5 commands). From Arize-ai/phoenix.
Settings file Claude Code
Agent settings declaring 1 hook event (PostToolUse).
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The arize-phoenix package consists of a sub-package named arize-phoenix-client which has the full functionality to communicate to the phoenix server. There is a legacy client exported at the top level of the arize-phoenix package that is being deprecated. Here are common migration patterns.
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how to migrate to the new evals interfaces.
Instructions file CodexOpenCode
AGENTS.md instructions for Arize-ai/phoenix, covering agent instructions, build & development and python dependency version policy.
Instructions file
Claude Code instructions for Arize-ai/phoenix, a project described as: AI Observability & Evaluation.
Skill Claude CodeCodex
Design and implementation guide for the Phoenix CLI (px). Covers the noun-verb command structure, dual-audience design (humans and coding agents), Commander.js patterns, configuration resolution, output formats, exit codes, and conventions for adding or modifying commands. Triggers when working on phoenix-cli commands…
Skill Claude CodeCodex
Development guide for the @arizeai/phoenix-client TypeScript SDK — run and resume experiments, manage OpenTelemetry tracer providers with stack-based attach/detach, and write vitest unit and integration tests. Use when adding features to phoenix-client, debugging experiment lifecycle or provider cleanup, modifying…
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The client should be as light-weight as possible as it is meant to be integrated into applications directly with no impact on the runtime.
Skill Claude CodeCodex
Guide for the phoenix-otel TypeScript package — OTel registration, stack-based global provider management, and provider lifecycle.
Skill Claude CodeCodex
Write effective, consistent annotations on LLM/agent spans and traces, and coach the user on annotation practice. Load this whenever you are about to record structured feedback with the ui.spans.annotate operation (via executebrowseraction), or when the user asks how to annotate, label, score, or review spans/traces…
Skill Claude CodeCodex
Understand what a Phoenix dataset is and reason well about its examples, outputs, splits, and how it feeds evaluators and experiments. Load this whenever a dataset is in view or the user asks what a dataset is, how splits work, what an output "means", or how datasets relate to experiments and evals. This skill governs…
Skill Claude CodeCodex
Diagnose failure modes by systematically investigating traces. Trigger when the user explicitly asks for cross-trace diagnosis: "what's going wrong?", "were there errors?", "debug this", "where is my agent struggling?". Do NOT trigger on: (1) advice questions ("what should I do?"), (2) statistical questions ("what's…
Skill Claude CodeCodex
Author or refine a Phoenix evaluator — code or LLM-as-a-judge — that scores a run's output. Trigger when the user wants to create a new evaluator, improve an existing one's logic or rubric, choose labels, or decide what to measure on a dataset or experiment. Do NOT trigger on: (1) manual prompt drafting (use…
Skill Claude CodeCodex
Run, read, and compare dataset-backed experiments to find evidence that a prompt or pipeline is improving. Trigger when the user wants to iterate over a dataset with experiments, compare experiment runs, read experiment quality/latency/cost, or decide whether a change actually helped. Running a prompt over a dataset…
Skill Claude CodeCodex
Write efficient GraphQL queries against the Phoenix API. Load this skill in two cases: (1) before composing any non-trivial GraphQL query yourself for data analysis (via the phoenix-gql bash command) — it contains schema entrypoints and patterns that eliminate the need for introspection; (2) when the user asks for…
Skill Claude CodeCodex
Author, edit, or iterate on prompts in the Phoenix prompt playground, including running experiments over a dataset. Load before any playground ui. operation call, including single-shot prompt rewrites.
Skill Claude CodeCodex
Open-code Phoenix spans with PXI-owned notes, recover those notes for axial coding, and promote stable categories into structured annotations. Load this when analyzing spans to discover failure patterns before a taxonomy exists.
Skill Claude CodeCodex
Get oriented in a Phoenix project before answering questions about it: which projects exist, how much traffic each carries, and where the errors and latency are. Load this when a user asks what is in a project, whether it is healthy, or where to start looking, and you have not yet looked at its data.
Skill Claude CodeCodex
Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task. Triggers include requests to "open a website", "fill out a form", "click a…
Skill Claude CodeCodex
Review Java OpenInference instrumentation code for correctness and completeness. Use this skill when reviewing a Java instrumentor package — whether it's a new instrumentor, a PR that modifies one, or when the user asks to audit/review/check an existing instrumentor's code quality. Trigger on phrases like "review the…