Sergio Xalambrí
Community@sergiodxa · Lima, Perú
Web Dev at Daffy.org. Previously: @ableco, @codeableorg, @platzi (YC W15), and @vercel
Agent Skills by Sergio Xalambrí
Showing 80 vetted skills indexed across 2 GitHub repositories.
sergiodxasdxc-http
Builds HTTP responses with status helpers, content negotiation, and caching for the Fetch API.
sergiodxasdxc-dates
Formats, parses, and computes calendar dates with Intl and explicit time zones.
sergiodxasdxc-feed
Parse RSS 2.0 and Atom 1.0 feeds into one normalized shape with conditional fetching and autodiscovery.
sergiodxasdxc-strings
Provides English inflection, slugification, title casing, and grapheme-safe text truncation utilities.
sergiodxasdxc-blog-engine
Implements a host-agnostic blog engine with CMS, migrations, and OIDC admin login.
sergiodxasdxc-duration
Converts compile-time-checked duration strings to milliseconds or seconds in TypeScript.
sergiodxagit-commit-best-practices
Enforces conventional commit message conventions and structured git commit workflows.
sergiodxasdxc-catch-response-middleware
Converts thrown Response objects into router responses in Remix v3 middleware chains.
sergiodxaapple-hig-web-app-guidelines
Applies Apple Human Interface Guidelines to Remix UI web app design and review.
sergiodxasdxc-highlight
Tokenizes source code into typed Token arrays for component-based rendering and markdown painting.
sergiodxasdxc-yaml
Parse and stringify YAML with Result-returning errors that name the failing line.
sergiodxasdxc-seo
Generates canonical URLs, schema.org JSON-LD, and head metadata for Remix pages.
sergiodxasdxc-cache
Implements a Result-returning cache contract with MemoryCache and Cloudflare KV adapters.
sergiodxasdxc-flags
Implements OpenFeature v0.9.0 feature flag evaluation with typed catalogs and middleware.
sergiodxaemail-best-practices
Guides implementation of deliverable, compliant transactional and marketing email systems.
sergiodxadurable-objects
Create and review Cloudflare Durable Objects for stateful coordination on Workers.
sergiodxasdxc-webhooks
Signs and verifies Standard Webhooks deliveries using HMAC-SHA256 with typed failure results.
sergiodxasdxc-types
Provides TypeScript utility types for JSON serialization boundaries and async return values.
sergiodxawrangler
Deploy and manage Cloudflare Workers, KV, R2, D1, and related resources via the Wrangler CLI.
sergiodxasdxc-uuid
Validates, asserts, and generates UUIDs behind a branded UUID type in TypeScript.
sergiodxaagents-sdk
Build stateful AI agents on Cloudflare Workers using the Agents SDK.
sergiodxasdxc-cloudflare-mocks
Creates in-memory Cloudflare binding mocks with real SQL execution for unit tests.
sergiodxaweb-design-guidelines
Review UI code files against Vercel Web Interface Guidelines for accessibility and design compliance.
sergiodxasdxc-flags-engine
Evaluates typed feature flags with targeting rules, percentage splits, and pluggable stores.
Frequently Asked Questions About Sergio Xalambrí
FAQPage SchemaWhat tasks can I accomplish using sergiodxa's skills?▼
The skills cover building Remix 3 and Cloudflare Workers applications end to end: HTTP response builders and caching, feature flags, rate limiting, background jobs, billing via Stripe/Polar/Mercado Pago, transactional email, OIDC authentication, markdown/YAML/XML parsing, syntax highlighting, and frontend reviews for React, accessibility, Tailwind, and OWASP security.
Who are these skills designed for?▼
Web developers and full-stack engineers building on Remix, React Router, and the Cloudflare platform. They suit engineers writing TypeScript edge applications, reviewing frontend code for performance and WCAG accessibility, or operating Workers with D1, KV, R2, Durable Objects, and Queues.
How do the @sdxc packages work at runtime?▼
Each @sdxc package is a focused TypeScript module with subpath exports, returning Result<T, E> discriminated unions instead of throwing. They integrate through remix/router middleware publishing instances like ctx.flags or context.i18next, and run on any fetch-capable runtime including Cloudflare Workers, with in-memory adapters for Vitest testing.
Are these skills free and open source?▼
The skills are published publicly in sergiodxa's registry of 182 repositories. The logging-best-practices skill explicitly carries an MIT license; other skills derive from publicly documented packages and conventions from sources like Basecamp, Vercel, and Cloudflare documentation.
What prerequisites do I need before using these skills?▼
Familiarity with TypeScript, the Fetch API, and either Remix/React Router or Cloudflare Workers is assumed. Platform-specific skills require Cloudflare bindings such as KV namespaces, D1 databases, or Durable Objects configured through wrangler, while auth skills assume OAuth 2.0 and OIDC concepts.