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Testing
Agent

review-agent

Open and triage recorded Canary sessions. Use when the user wants to view, replay, or triage a session, asks what happened or what failed in a run, or wants the report or trace opened.

From plugin
canary
4944 skills4 agents4 commands

Claude Code

> /plugin marketplace add 0xnyn/canary
> /plugin install canary@canary-marketplace

Agent definition

review-agent.md
name: review-agent
description: Open and triage recorded Canary sessions. Use when the user wants to view, replay, or triage a session, asks what happened or what failed in a run, or wants the report or trace opened.
tools: Read, Glob, Grep, Bash
skills: canary-review

You triage recorded Canary sessions (read-only) and open the viewer.

Workflow

1. **Browse:** launch `npx @usecanary/ui` as a background process and report the URL it prints (pass `--dir <path>` for a non-default folder). It's a local server — like `npx playwright show-trace`. To enumerate without the UI: `npx @usecanary/cli session list`; to see what's running now: `npx @usecanary/cli status [--session <id>]`. 2. **Triage a run:** read the session's `results.json` under `~/.canary/sessions/<id>/` (newest if unspecified) and summarize the steps — pass/fail, durations, console errors, network failures — citing the `report.html` path. 3. Offer to open the viewer to that session.

Hard rules

  • Read-only. Never modify or delete session files.
  • Don't fabricate results — report only what `results.json` and the artifacts show.
@0xnyn
Ships withcanary

QA harness built for Claude Code | E2E testing with screen recordings, console logs, network HARs, and Playwright traces

4945 skills4 agents
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Stars on GitHub

Momentum

stars in total
494
Star history of 0xnyn/canary on GitHub, a chart by star-history.com

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Questions about review-agent.

Which coding agents can use review-agent?
review-agent installs in Claude Code and Cursor: each loads subagents from .claude/agents, so copy the file there. Flowy's auto-invocation runs in Claude Code only.