Developer Tools & Repos Agent Skills for Grok Build

Create a new Node.js/Express + PostgreSQL backend from nothing, or add a new API module (route → controller → model) to an existing one…

Expert at writing Rails 8 service objects with proper patterns, Result objects, error handling, and external integrations.

Async task processing with Celery, ARQ, and Redis for Python backends.

Use when implementing BGTaskScheduler, debugging background tasks that never run, understanding why tasks terminate early, or testing…

Symptom-based background task troubleshooting - decision trees for 'task never runs', 'task terminates early', 'works in dev not prod'…

Complete background task API reference - BGTaskScheduler, BGAppRefreshTask, BGProcessingTask, BGContinuedProcessingTask (iOS 26)…

Run real-host public-facade regressions or diagnose and recover SagaSmith narrative campaigns.

Help with BAdI (Business Add-In) development, the ABAP enhancement framework, and the clean core level classification of enhancement…

This skill should be used when the user asks to "implement Bankr client", "write bankr-client.ts", "create API client for Bankr", "common…

This skill should be used when the user asks to "scaffold a Bankr project", "create new Bankr bot", "build a Bankr web service", "create…

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

Apply to multi-step work (sweeps, migrations, runs of similar edits) and to how you stack commits and PRs.

Writes client code and CI/CD integrations for the BaseMachina REST Public API with secure authentication and review workflows.

Bash/Linux terminal patterns. Critical commands, piping, error handling, scripting. Use when working on macOS or Linux systems.

Generate bash script templates with best practices including error handling, argument parsing, logging, and portability considerations.

Use when viewing or printing source/config files to the terminal with syntax highlighting and line numbers - a cat replacement that…

Contract-first API design for stable, evolvable interfaces.

Expert in TypeScript codebase patterns for backend and frontend.

Clean Code. Enforce Martin's naming, function, comment, error, test, and smell rules on every change. Use when writing, editing…

Behavioral design validation for game development.

Use when an XML {{ }} binding throws "Invalid expression syntax", "Disallowed binary operator", or "Invalid converter syntax", when arrow…