what-can-brower-run-do

Adding a new Cloudflare binding (KV, R2, D1, Durable Object, Queue, secret, or environment variable) to this TanStack Start + Cloudflare Workers project. Use this skill whenever the user asks to add a binding, connect a new Cloudflare service, wire up KV/R2/D1/Queues, add a secret, or set an environment variable. Also trigger when the user says things like "I need caching" (KV), "add file storage" (R2), "set up a queue", "add a secret for my API key", "I need a new D1 database", or "add an env var". This skill covers the exact wrangler.jsonc configuration for each binding type, the cf-typegen step to get TypeScript types, and the usage patterns for accessing bindings via `import { env } from "cloudflare:workers"`.

Design engineering principles for making interfaces feel polished. Use when building UI components, reviewing frontend code, implementing animations, hover states, shadows, borders, typography, micro-interactions, enter/exit animations, or any visual detail work. Triggers on UI polish, design details, "make it feel better", "feels off", stagger animations, border radius, optical alignment, font smoothing, tabular numbers, image outlines, box shadows.

Creating a new HTTP endpoint (REST route) in this TanStack Start + Cloudflare Workers project. Use this skill whenever the user asks to add an API route, REST endpoint, HTTP handler, webhook receiver, or any new URL that external callers can hit. Also trigger when the user says things like "add a GET/POST/PUT/DELETE for...", "create an endpoint for...", "I need an API for...", "add a route at /api/...", or even just "expose this over HTTP". This skill covers the exact file-based routing pattern, handler structure, input validation, and binding access that work in this codebase -- most AI training data gets TanStack Start's API routes wrong.

Adding a database table, modifying the schema, or creating a new model/entity in this TanStack Start + Cloudflare D1 project. Use this skill whenever the user asks to add a table, create a model, define a new entity, add columns, change the schema, or anything involving `src/db/schema.ts`. Also trigger when the user says things like "I need a users table", "add a posts model", "store X in the database", "add a field to...", or "set up the DB for...". This skill covers Drizzle ORM column types for SQLite/D1, the migration workflow (generate then apply via wrangler), Zod schema derivation with drizzle-zod, and common pitfalls like using Postgres types on D1.