Developer Tools & Repos Agent Skills for DeepSeek Harness

Internationalization and localization patterns.

Enforces the gen-l10n/ARB localization contract: every string through AppLocalizations from a template app_en.arb, key + placeholder…

GitHub pull request skill. Use when the user asks to open a PR. Produces a short English summary of what changed, and auto-attaches a demo…

Implement, tune, debug, or validate soft wall-aware fog of war and gameplay perception in Three.js action games.

Implements JavaScript classes in C++ using JavaScriptCore.

Guide for exposing PostHog product endpoints as MCP tools.

MANDATORY for ALL MCP server work - mcp-use framework best practices and patterns. READ THIS FIRST before any MCP server work…

Audit and modernize Node.js scripts inside portable skills with explicit dependencies, committed lockfiles, local npm commands, compiled…

Audit and modernize Python scripts inside portable skills with PEP 723 dependency metadata, stable uv launchers, standard-library…

Use when editing, reviewing, or auditing DRF viewsets and serializers in PostHog.

Enforce Inertia.js patterns in Vue components.

Scaffold a full-TypeScript Bun monorepo with SvelteKit frontend, ElysiaJS backend, Drizzle ORM, PostgreSQL, Docker Compose, .env.example…

Remove an Action (and its Bindings) from an ActionMap in a `.inputactions` asset and save it.

Install an iOS build on a physical iPhone that is not on the local network — over Tailscale, TestFlight, or a cable — when Xcode's own…

Cross-platform pattern for handling messaging integration webhooks (Slack, Telegram, WhatsApp, email, etc.) on serverless hosts.

Compare files or directory trees, detect exact duplicate files, calculate SHA-256 checksums, normalize text for semantic comparison, and…

Intelligent merge/rebase strategy selection with safe execution

Structured code restructuring preserving functionality with continuous validation

Build interactive API try-it-out consoles for documentation

Solve an interactive grid game iteratively — observe, hypothesize, experiment, record knowledge, and submit action sequences until every…

Designs interactive theatrical experiences with branching narratives, audience participation systems, and immersive environmental…