# Dev App Verify

> Drive and screenshot the running Rocket.Chat Desktop dev app (yarn start) through the main-process inspector on port 9339 — trigger menu items (Simulate Download/Update), evaluate in the renderer DOM, capture titlebar screenshots. Use whenever a UI change needs runtime/visual verification that component tests can't see (paint, clipping, colors, animation, layout).

- Skill: `rocketchat/dev-app-verify-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add rocketchat/dev-app-verify-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/rocketchat/dev-app-verify-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: rocketchat (https://skillmd.com/u/rocketchat)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/rocketchat/dev-app-verify-2

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Follow `skills/dev-app-verify/SKILL.md` (repo root) — the canonical,
agent-agnostic version of this runbook. It contains the ready-made inspector
script, menu-triggering and DOM-truth recipes, and the three pitfalls that
produce false alarms (window occlusion freezing `capturePage`, watcher
restarts killing in-flight state, singleton-lock wedges).

This stub exists so Claude Code auto-discovers the skill; keeping the body in
one place prevents the two copies from drifting.