VersoXBT

Manage Rust projects effectively with Cargo workspaces, features, and tooling. Use when the user sets up Cargo workspaces, configures feature flags, writes build.rs scripts, prepares crates for publishing, or uses cargo clippy, cargo fmt, and other Cargo development tools.

Enforce immutable data patterns across JavaScript, TypeScript, Python, and Go. Use when the user writes code that mutates objects, arrays, or state. Apply whenever modifying data structures, updating state, or reviewing code for mutation bugs. Always prefer immutable patterns over in-place mutation.

Guide for writing GitHub Actions workflows with triggers, reusable workflows, matrix strategies, caching, secrets, and composite actions. Use when the user creates or modifies GitHub Actions workflows, asks about CI/CD on GitHub, or needs help with workflow syntax. Trigger whenever GitHub Actions, .github/workflows, or CI pipelines on GitHub are mentioned.

Profile and diagnose performance bottlenecks in web and backend applications. Activate whenever the user reports slow performance, asks about profiling tools, investigates memory leaks, needs to generate flame graphs, or is optimizing CPU or memory usage. Also activate when mentioning Chrome DevTools, cProfile, py-spy, pprof, or heap snapshots.

Next.js App Router patterns including server components, route handlers, middleware, parallel routes, intercepting routes, streaming, and caching strategies. Use when the user is building with Next.js 13+/14+/15+, asking about the App Router, server components vs client components, route handlers, Next.js middleware, or Next.js caching and revalidation. Trigger on any mention of Next.js, App Route

Patterns for using TaskCreate, TaskUpdate, TaskList, and TaskGet to coordinate multi-step work. Use when the user has a complex project with multiple steps, needs progress tracking, dependency management, or multi-agent task assignment.

Red-green-refactor TDD cycle, test-first methodology, coverage targets (80%+), and test pyramid. Use when the user is implementing a new feature, fixing a bug, asks about TDD, or mentions writing tests before code. Always push for test-first.

Build async FastAPI applications with async/await endpoints, background tasks, middleware, lifespan events, WebSockets, and streaming responses. Use when the user builds a FastAPI app, asks about async patterns, implements real-time features, or needs non-blocking I/O. Trigger when you see synchronous code in FastAPI that should be async.

Patterns for Claude tool use including tool definition schemas, multi-tool orchestration, parallel tool calls, error handling, and result formatting. Use when the user is defining tools for Claude, building agentic workflows with tool calling, handling tool errors, or implementing multi-step tool pipelines.

Patterns for multi-agent systems including orchestrator, pipeline, consensus, delegation, supervisor, and swarm patterns. Use when the user is building multi-agent workflows, coordinating multiple AI agents, implementing agent delegation or supervision, or designing systems where agents collaborate on complex tasks.

Apply safe, idiomatic Go concurrency patterns with goroutines and channels. Use when the user works with goroutines, channels, sync primitives, context cancellation, worker pools, fan-in/fan-out, select statements, or asks about concurrent Go programming and avoiding race conditions.

Guide pull request creation, review process, CI gates, and merge strategies. Use when the user creates a PR, asks about PR templates, review workflows, CODEOWNERS setup, or merge strategies. Apply when running gh pr create.