Arize-ai

Coding Harness Tracing — Development skill for Claude Code

Development community

Trace coding harnesses like claude-code, cursor, and codex to Arize AX or Phoenix.

How to install Coding Harness Tracing

This entry records only its repository, not the path inside it, so there is no exact command to give. Open Arize-ai/coding-harness-tracing and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Coding Harness Tracing does

Trace coding harnesses like claude-code, cursor, and codex to Arize AX or Phoenix.

Alternatives in Development

Root Cause Tracing — Use when errors occur deep in execution and you need to trace back to find the original trigger 102.5k ★
Agentic Stack — One brain, many harnesses 2.2k ★
Zeron — A native control plane for Claude Code, Codex, Cursor, Devin and other coding agents 1.4k ★

README

Arize Coding Harness Tracing

Trace AI coding sessions to [Arize AX](https://arize.com) or [Phoenix](https://github.com/Arize-ai/phoenix) with [OpenInference](https://github.com/Arize-ai/openinference) spans. Each harness integration emits spans for prompts, tool calls, model responses, and session lifecycle events.

Claude Code tracing reconstructs each turn as a `CHAIN` containing per-response `LLM` spans, correlated `TOOL` spans, and a foreground subagent `AGENT` subtree when available. See [Claude Code trace structure and current limitations](tracing/claude_code/README.md#trace-structure) for details.

Supported Harnesses

Harness Integration	Install command	Name
Claude Code CLI / Agent SDK	macOS / Linux · Windows	`claude`
Claude Code CLI / Agent SDK	Claude Plugin	`claude-code-tracing`
OpenAI Codex CLI	macOS / Linux · Windows	`codex`
Cursor IDE / CLI	macOS / Linux · Windows	`cursor`
Cursor IDE / CLI	Cursor Plugin	`cursor-tracing`
GitHub Copilot (VS Code + CLI)	macOS / Linux · Windows	`copilot`
Gemini CLI	macOS / Linux · Windows	`gemini`
Kiro CLI	[macOS / Linux](tracing/kiro/R