Backend

Router skill for DiPeO backend ecosystem (server/ and cli/): FastAPI server, CLI tools, database, MCP integration. Use when task mentions CLI commands, server endpoints, database queries, or MCP tools. For simple tasks, handle directly; for complex work, escalate to dipeo-backend agent.

Build Django applications with models, views, forms, templates, REST APIs, and modern Django 5.x patterns.

Use when creating or refactoring Action Mailer emails. Applies Rails 7.1+ conventions, parameterized mailers, preview workflows, background delivery, and email design best practices.

Use when creating or refactoring Active Job background jobs. Applies Rails 8 conventions, Solid Queue patterns, error handling, retry strategies, and job design best practices.

Guidance for deploying HuggingFace models as inference APIs/services. This skill applies when tasks involve downloading pre-trained models from HuggingFace Hub, creating REST APIs for model inference, building Flask/FastAPI services around ML models, or setting up sentiment analysis, text classification, or other NLP inference endpoints.

Use when implementing Hotwire features with Turbo Drive, Turbo Frames, and Turbo Streams. Applies Rails 8 conventions, morphing, broadcasts, lazy loading, and real-time update patterns.

This skill guides deploying Rails applications with Kamal. Use when configuring deploy.yml, setting up accessories, managing secrets, or preparing servers for container deployment.

Guidance for setting up HuggingFace model inference services with Flask APIs. This skill applies when downloading HuggingFace models, creating inference endpoints, or building ML model serving APIs. Use for tasks involving transformers library, model caching, and REST API creation for ML models.

Use when configuring or working with Solid Cache for database-backed caching. Applies Rails 8 conventions, cache key design, expiration strategies, database setup, and performance tuning patterns.

Manage backlog items across multiple backends (files, GitHub Issues, Linear, Beads). Configure task_management in .agents.yml.

Test implementation of thin router skill for DiPeO backend. Provides decision criteria and documentation anchors for FastAPI server, CLI (dipeo run/results/metrics/compile/export), SQLite schema, and MCP integration in apps/server/. Use when task mentions CLI commands, server endpoints, database queries, or MCP tools.

Modern Python 3.12+ development with uv, ruff, pydantic, FastAPI, async patterns, and production-ready practices.

Comprehensive guide for building production-quality Ruby gems. Use when creating new gems, structuring gem architecture, implementing configuration patterns, setting up testing, or preparing for publishing. Covers all gem types - libraries, CLI tools, Rails engines, and API clients.

Guide for implementing gRPC-based key-value store services in Python. This skill should be used when building gRPC servers with protobuf definitions, implementing KV store operations (Get, Set, Delete), or troubleshooting gRPC service connectivity. Applicable to tasks involving grpcio, protobuf code generation, and background server processes.

Code quality audit worker (L3). Checks cyclomatic complexity, deep nesting, long methods, god classes, O(n²) algorithms, N+1 queries, magic numbers, decentralized constants, duplicate constants. Returns findings with severity, location, effort, recommendations.

When python, flask, or jinja are being written or edited.

Browser automation using browser-cdp CLI. Control Chrome, Brave, or Edge browsers for testing, scraping, and web interaction. Uses your real browser (not test mode) for authentic sessions.

Guidance for building gRPC-based key-value store services in Python. This skill should be used when tasks involve creating gRPC servers, defining protocol buffer schemas, or implementing key-value storage APIs with gRPC. Covers proto file creation, code generation, server implementation, and verification strategies.

Use proactively when refactoring Ruby on Rails code. Applies Rails conventions, Sandi Metz rules, and idiomatic Ruby patterns while maintaining test coverage.

Generate .agents.yml config from user answers. Provides tech stack templates for Rails, Python, Node, and Generic projects.