gertrude

Write queries and mutations with Gertrude's custom Duet/DuetSQL ORM.

Query and analyze the Gertrude PostgreSQL database. Use when answering questions about database schema, writing SQL queries, analyzing data, or debugging database-related issues.

Update local Apple device artwork for the Dashboard_v2 from ipsw.dev. Use when asked to add, refresh, audit, crop, or wire up Mac, iPhone, or iPad model images in web/dashboard-v2/public/devices, especially after new Apple model releases.

Run or design an agentic persona usability eval of a Gertrude surface - drive a real interface as a zero-backstory user, think aloud, and score it on a rubric. Use when asked to usability/UX test a site or app, or to measure whether a change improves real-user comprehension. The working driver today is web (Playwright MCP); native apps are not yet supported.

Verify non-trivial database migrations (data backfill, column drops, FK retargets, type changes, dedup) by capturing pre-migration baseline state, running the up/down/up cycle through the user, and asserting expected outcomes at each step. Use when a migration touches data — not just schema.

Research and prepare a new public keychain for a website or service. Use when asked to create or prepare a public keychain for a domain.