Skills · Developer tools
Python asyncio: adopt async only for concurrent I/O needs
Design event-loop behavior, task concurrency, cancellation, timeouts, and blocking-work offload.
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Skills · Developer tools
Python resilience: retry only recoverable failures
Design timeouts, exponential backoff, jitter, and a total attempt bound for dependencies.
Skills · Developer tools
Python pytest: verify behavior and boundaries with isolated tests
Organize unit/integration tests, fixtures, mocks, parametrization, and async coverage.
Skills · Crypto trading tools
Strategy backtesting: control data bias before evaluating results
Build reproducible simulations that address look-ahead, survivorship, overfit, and trading costs.
Skills · Crypto trading tools
Portfolio risk metrics: state sample and tail assumptions
Calculate volatility, VaR/CVaR, drawdown, and risk-adjusted returns from aligned observations.
Skills · Integrations
Cloudflare Agents SDK: retrieve current docs before designing an agent
Route by Agent class, durable state, RPC/streaming, queues, scheduling, MCP, and durable execution.
Skills · Integrations
Basin: distinguish Pipelines, Catalog, and SQL workflows
Route ingestion, Iceberg table management, and analytical queries to separate workflows.
Skills · Developer tools
Cloudflare cf CLI: inspect command schemas before execution
Use the beta CLI to find API commands, inspect parameters, and preview execution.
Skills · Integrations
Cloudflare Email Service: verify domain and sending path first
Distinguish Worker-binding, REST, agent reply, and inbound-routing workflows.
Skills · Integrations
Cloudflare One migration: map policies and preserve gaps
Use structured source exports to inventory dependencies and stage identity, connectors, rules, and logging.
Skills · Integrations
Cloudflare One: confirm identity and traffic paths before configuration
Route by Access, Gateway, device, or connector need and inventory existing policies first.
Skills · Integrations
Cloudflare product discovery: route user goals to specialist workflows
Choose products for app, API, AI agent, storage, networking, or security goals, then route to domain guidance.
Skills · Integrations
Durable Objects: model state services around coordination boundaries
Choose object granularity, storage, routing, alarms, and persistent connections.
Skills · Integrations
K2 Streams: design a durable event flow from producer to subscriber
Route by configuration, production, or consumption and check lease, ack, and retry semantics.
Skills · Integrations
Next.js on Cloudflare: start with vinext and verify migration compatibility
Distinguish a new project from an existing Next.js codebase and follow the upstream skill.
Skills · Integrations
Migrate stable Sandbox to @next: audit incompatible protocols before cutover
Plan package/image alignment, API changes, validation, and immediate production cutover.
Skills · Integrations
Sandbox @next: verify the SDK line before using process handles
Align preview package/image and implement the `exec(argv)` handle lifecycle.
Skills · Integrations
Sandbox stable: preserve current call semantics for container tasks
Check the default package and distinguish buffered exec, sessions, and long-process interfaces.
Skills · Security
Integrate Turnstile: confirm site mode and verify tokens server-side
Use the official scaffold for the selected mode and add reproducible tests.
Skills · Developer tools
Web performance: use profiles to find high-impact issues
Capture Web Vitals and browser traces, with a baseline and measurable verification.
Skills · Developer tools
Workers best practices: review against project target and compatibility date
Check APIs, bindings, observability, and failure patterns against docs and local schema.
Skills · Developer tools
Workers profiling: optimize only after CPU or heap evidence
Confirm symptoms and deployed version, capture the right profile, and map it to source.
Skills · Developer tools
Wrangler: identify project config and target environment before commands
Distinguish local Wrangler, cf CLI, local/remote bindings, Preview, and production resources.
Skills · Developer tools
React composition patterns: reduce boolean-prop combinations
Route to architecture, state, implementation, or version-specific rules before changing APIs.
Skills · Developer tools
React Native and Expo: route mobile work by bottleneck
Inspect large lists, gesture animation, navigation, media, or monorepo boundaries first.
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