gstack

@garrytan

Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with elements, verify state, diff before/after, take annotated screenshots, test responsive layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots. Also suggest adjacent gstack skills by stage: brainstorm /office-hours; strategy /plan-ceo-review; architecture /plan-eng-review; design /plan-design-review or /design-consultation; auto-review /autoplan; debugging /investigate; QA /qa; code review /review; visual audit /design-review; shipping /ship; docs /document-release; retro /retro; second opinion /codex; prod safety /careful or /guard; scoped edits /freeze or /unfreeze; gstack upgrades /gstack-upgrade. If the user opts out of suggestions, stop and run gstack-config set proactive false; if they opt back in, run gstack-config set proactive true.