Developer Tools & Repos Agent Skills for Gemini CLI

Set up a TypeScript 7 tsconfig.json with maximally strict, machine-verifiable settings tuned so the LLM agent doing the editing gets the…

Add zod to a TypeScript npm project and install the boundary-only parsing convention.

Auditing the content of RPG supplements (locations, NPCs, factions, adventure hooks, monsters, encounters) to identify clichés, locations…

Run a full multi-pass playtest of a TTRPG scenario before publication or before running it at the table.

Review TTRPG supplements for publication readiness: villain supplements, adventure modules, setting toolkits, bestiaries, player options…

Stabilize flaky Tuist tests identified by test-insights URLs, test case IDs, or inconsistent local runs; covers test and product-code…

Diagnose Tuist generation, build, and launch failures when `tuist generate`, generated Xcode workspaces, or apps fail or diverge from the…

Operate Tuist-generated Xcode workspaces with `tuist generate`, focused generation, tags, buildable folders, and post-generation build or…

Build, debug, balance, or test combat enemy AI for playable action games.

Turbopack configuration and Next.js integration.

Apple Human Interface Guidelines for Apple TV.

Use when the user asks to "check twelve-factor compliance", "review this service for 12-factor", "design a new microservice", "where…

Twilio SMS CLI: buy/list/keep numbers, send/check messages, credential routing.

Deep code review via Claude subagent — reviews uncommitted changes by default, loops until no critical issues remain.

Cross-model code review via Codex CLI — reviews uncommitted changes by default, loops until no critical issues remain.

Explain the architecture and logic of a specified module or design in plain, approachable language.

Design .NET types for performance. Seal classes, use readonly structs, prefer static pure functions, avoid premature enumeration, and…

Global TypeScript and Angular Form/Module best practices: strict typing, form initialization, and module structure.

TypeScript best practices. Use when reading or editing any .ts or .tsx file.

Streamlines the creation of idiomatic TypeScript bindings and SDKs for high-performance Rust-based core libraries.

When to activate: TypeScript decorators, class decorators, method decorators, reflect-metadata, NestJS decorators, experimental decorators