Developer Tools & Repos Agent Skills for Claude Code

Implement Palantir Foundry API rate limiting, backoff, and request queuing.

Use when implementing particle effects — GPUParticles2D/3D, ParticleProcessMaterial, emission shapes, subemitters, trails, attractors…

Provides comprehensive guidance for React Native development including components, navigation, native modules, platform-specific code, and…

Guides Svelte and SvelteKit development including reactive components, stores, transitions, lifecycle hooks, SSR, file-based routing, and…

Integrate Apple Pay payments and Wallet passes using PassKit.

Generate player-facing patch notes from git history, sprint data, and internal changelogs.

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

Foundation for the Pennylane Company API v2 in a multi-company setup: where tokens live, how to call the API, cursor pagination, filters…

Design game performance testing strategy.

Create child communication safety experiences using PermissionKit to request parental permission for children.

App registration with Meta AI and device permission flows

Implement Perplexity rate limiting, backoff, and idempotency patterns.

Evidence-based phase completion enforcement for /dev:feature.

Validate readiness to advance between development phases.

Reviews Phoenix code for controller patterns, context boundaries, routing, and plugs.

Phoenix context design — creating/splitting contexts, Scope (1.8+), Ecto.Multi, PubSub, routers, plugs, controllers.

Handle HTTP requests with Phoenix controllers including actions, parameters, rendering, flash messages, and redirects

Coordinate explicit Photo Library selection, bounded metadata searches, on-device Vision work, album changes, and document scanning.

When to activate: PHP concurrency, ReactPHP, Swoole coroutines, PHP Fibers, async PHP, queued jobs, Laravel queues, Symfony Messenger…

Guides CodeIgniter 4 application architecture — Controllers, Models (Query Builder, not an ORM), Entities, the Validation library, Filters…

Use when composer package management and PSR-4 autoloading including dependency management, autoload strategies, package creation, version…