Developer Tools & Repos Agent Skills for Grok Build

Implement real-time features with WebSockets, Server-Sent Events, and long polling.

Use when accepting ANY real-world payment — Apple Pay, Wallet passes, Tap to Pay, Orders in Wallet.

RealityKit API reference — Entity, Component, System, RealityView, Model3D, anchor types, material system, physics, collision, animation…

Use when building 3D content, AR experiences, or spatial computing with RealityKit.

Use when RealityKit entities not visible, anchors not tracking, gestures not responding, performance drops, materials wrong, or…

Use when migrating from Realm to SwiftData - comprehensive migration guide covering pattern equivalents, threading model conversion…

Analyzes user requirements and plans reconnection workflows for real-time connections without making premature system changes.

Match bank transactions to invoices in Pennylane: find transactions lacking a justification and invoices left unpaid, propose pairings…

Use when setting up UI test recording in Xcode 26, enhancing recorded tests for stability, or configuring test plans for…

Recruitee integration via Apideck's ATS unified API — same methods work across every connector in ATS, switch by changing `serviceId`.

Use when the user wants to remove unused #include directives from a WebKit source directory (bmalloc, WTF, JavaScriptCore, WebCore…

Reduce time-to-first-API-call (TTFAC) by optimizing every step of the developer onboarding journey.

Use when code has grown complex, duplicated, or cluttered — clean up structure and remove dead code without changing observable behavior

Executes automated project-wide refactoring with a focus on cross-file optimization.

Restructure existing code while preserving externally observable behavior through explicit invariants, characterization evidence, small…

Comprehensive guide for refactoring imperative TypeScript code to fp-ts functional patterns

INVOKE THIS SKILL when: visualizing regex patterns, debugging regular expressions, explaining regex to users, building regex from natural…

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through…

Use when relay mutations with optimistic updates, connections, declarative mutations, and error handling.

Use when relay pagination with cursor-based pagination, infinite scroll, load more patterns, and connection protocols.

Twake-on-Matrix release process skill. Use this skill whenever the user wants to cut a release, bump a version, create a tag, update the…