Developer Tools & Repos Agent Skills for Grok Build

Use when managing dependencies with Bun's package manager.

Bun as runtime, package manager, bundler, and test runner.

In a multi-workspace monorepo, hoist shared dependencies into Bun catalogs so version bumps are a single root edit and package families…

When to activate: Bundler, Gemfile, Gemfile.lock, pessimistic version operator, bundle groups, bundle audit, gemspec, private gem sources…

Expert skill for bytecode virtual machine design including instruction set design, dispatch mechanisms, and stack/register architectures

Use when C# async/await patterns including Task, ValueTask, async streams, and cancellation.

When to activate: C++ build, CMake, sanitizers, ASan, UBSan, TSan, clang-tidy, clang-format, vcpkg, Conan, CI, static analysis

Use when fundamental C data structures including arrays, structs, linked lists, trees, and hash tables with memory-efficient…

Use when lINQ (Language Integrated Query) with query and method syntax, deferred execution, expression trees, and performance optimization.

When to activate: smart pointers, unique_ptr, shared_ptr, weak_ptr, memory management, custom allocators, RAII, memory leaks, heap, stack…

Use when C# nullable reference types and value types for null safety, nullable annotations, and patterns for handling null values.

Use when c systems programming including file I/O, processes, signals, and system calls for low-level system interaction.

Use when C++ templates and metaprogramming including template specialization, SFINAE, type traits, and C++20 concepts.

Next.js 16 Cache Components - PPR, use cache directive, cacheLife, cacheTag, updateTag

Implement caching strategies for HTTP, service workers, and memoization

Run source-bound Call of Cthulhu 7e investigations through SagaSmith MCP.

Use this agent to scan Swift code for camera, video, and audio capture issues including deprecated APIs, missing interruption handlers…

Stream, video frames, photo capture, resolution/frame rate configuration

Use when implementing cameras — smooth follow, screen shake, camera zones, and transitions for 2D and 3D

This skill should be used when creating a new Daggerheart campaign, establishing world tone and themes, selecting or building a campaign…

Campfire integration via Apideck's Accounting unified API — same methods work across every connector in Accounting, switch by changing…