Designs and implements APIs: REST, GraphQL, gRPC, and WebSocket. Produces OpenAPI 3.1 specs, GraphQL SDL schemas, Protocol Buffer definitions, and working server implementations. Use this skill when the user asks about API design, endpoint structure, schema definition, versioning strategy, pagination, authentication…
Designs and implements authentication and identity systems. Covers OAuth2 and OIDC flows including authorization code, PKCE, and client credentials; JWT design including RS256 vs HS256, key rotation, token blacklisting, and refresh token strategy; RBAC and ABAC modeling; SSO with Google, GitHub, and SAML 2.0; session…
Diagnoses and improves application-layer databases: Postgres, MySQL, SQLite, and MongoDB. Covers EXPLAIN ANALYZE, slow query detection, index strategy, N+1 detection, schema migrations with up/down scripts, connection pooling, replication setup, and vacuum/analyze operations. Use this skill when the user says "this…
Handles zero-downtime deployments: blue-green, canary releases, rolling updates, and feature flag rollouts. Covers Kubernetes, Docker, Cloudflare Workers, Terraform, and CI/CD pipeline setup. Use this skill when the user wants to deploy an application, set up a deployment pipeline, implement canary releases, configure…
Extracts structured data from websites — static HTML, JavaScript-rendered SPAs, paginated listings, and API-backed pages. Handles anti-bot detection awareness, rate limiting, and robots.txt compliance. Use this skill whenever the user wants to scrape a website, extract data from a URL, pull product listings, harvest…
Manages infrastructure operations: DNS records, SSL certificates, Cloudflare Workers, CDN configuration, and domain provisioning. Use this skill whenever the user mentions Cloudflare, DNS, SSL, Workers, domain setup, CDN config, TLS hardening, zone management, or any infrastructure automation task — even if they just…
Decomposes complex tasks into subtasks and coordinates multiple tools or agents to execute them. Handles task dependency graphs, parallel execution planning, result merging, and conflict resolution. Use this skill when the user has a multi-step task that spans multiple domains — like "scrape 5 sites, compare the data…
Builds observability, monitoring, alerting, and incident visibility for production systems. Covers OpenTelemetry instrumentation for traces, metrics, and logs; structured logging with JSON, correlation IDs, and sampling; Prometheus and Grafana scrape configs, dashboards, and recording rules; distributed tracing with…
Designs and implements data pipelines: ETL/ELT, streaming, batch processing, schema migrations, and data warehouse architecture. Covers Kafka, Airflow, dbt, Spark, ClickHouse, BigQuery, Snowflake, Redis Streams, and more. Use this skill when the user asks about data pipelines, ETL jobs, data transformation, streaming…
Analyzes prediction markets: Polymarket, Manifold Markets, Kalshi. Calculates implied probabilities, detects cross-platform arbitrage, computes expected value and Kelly fractions. Use this skill when the user mentions prediction markets, Polymarket, Manifold, Kalshi, odds analysis, arbitrage detection, market…
Engineers and optimizes prompts for LLMs: system prompts, few-shot examples, chain-of-thought structures, agent personas, and evaluation frameworks. Use this skill when the user wants to write or improve a system prompt, design few-shot examples, create an agent persona, optimize prompt performance, set up prompt…
Debugs complex, hard-to-reproduce issues: race conditions, memory leaks, deadlocks, performance regressions, heisenbugs, and crash analysis. Uses scientific debugging methodology with hypothesis generation, systematic testing, and root cause isolation. Use this skill when the user reports intermittent crashes…
Performs security audits, vulnerability assessments, SSL/TLS hardening, DNSSEC configuration, and compliance checks. Covers OWASP Top 10, CIS Benchmarks, email security (SPF/DKIM/DMARC), and network reconnaissance. Use this skill when the user asks for a security audit, vulnerability scan, penetration test, SSL…