Packages

High-level statistical data visualization library built on matplotlib that produces attractive, informative charts from pandas DataFrames with minimal code via a consistent dataset-oriented API.

A fine-grained reactive UI framework that uses signals (createSignal/createEffect/createMemo) and JSX compiled to direct DOM operations — components run once and only signal subscribers update, with no virtual DOM.

Kubernetes local development environment tool with live-update, smart rebuilds, and a rich web UI for monitoring multi-service development.

Database migration tool for SQLAlchemy — provides versioned schema management with upgrade/downgrade scripts. alembic features: alembic init for project setup, alembic revision --autogenerate to detect schema changes, alembic upgrade head to apply migrations, alembic downgrade to revert, migration scripts with op.create_table/add_column/drop_column/create_index/etc., env.py configuration, programmatic MigrationContext for embedding, branch handling for merge conflicts, offline SQL generation (--sql flag), batch operations for SQLite ALTER TABLE limitations, and compare_type for column type changes.

Simple, expressive Python ORM — small codebase, minimal dependencies, supports SQLite/PostgreSQL/MySQL with a clean model definition API. peewee features: Model subclass for schema definition, CharField/IntegerField/BooleanField/DateTimeField/ForeignKeyField, database.connect()/close(), Model.create(), Model.get(), Model.select(), Model.update(), Model.delete(), where() clauses, join(), fn() for SQL functions, transaction via database.atomic(), migration via playhouse.migrate, raw SQL via database.execute_sql(), and many extensions in playhouse.

Simple, blazing fast, and thoroughly tested WebSocket client and server for Node.js. ws is the go-to WebSocket library for Node.js server implementations — used internally by Socket.io and many WebSocket-based agent systems. Provides raw WebSocket protocol access without abstraction overhead for agent streaming, real-time agent communication, and bidirectional agent-to-UI channels.

Declarative statistical visualization library for Python based on Vega-Lite grammar. Altair features: alt.Chart() with mark_bar/mark_line/mark_point/mark_area, encode() for channel mappings (x, y, color, size, tooltip), transform_filter()/transform_aggregate()/transform_calculate() for data transforms, selection/condition for interactive filtering, facet()/vconcat()/hconcat()/layer() for composition, alt.data_transformers for large dataset handling, save() to HTML/SVG/PNG, Jupyter widget rendering, and theme support. Grammar of Graphics approach — describe what to show, not how to draw it. Best for exploratory data analysis and interactive dashboards in Jupyter.

Static security analysis tool for Python code. Bandit finds common security issues — hardcoded passwords, use of pickle with untrusted data, subprocess shell injection, weak cryptography, SQL injection via string formatting, and more. Designed to find security bugs introduced by developers, not as a complete security audit tool. Standard inclusion in Python CI/CD pipelines for security hygiene.

The foundational effect system for the Typelevel Scala ecosystem. Cats Effect provides IO — a lazy, asynchronous, pure effect type — along with fiber-based green thread concurrency, resource safety (Resource[F, A]), structured concurrency (IO.both, IO.race, IO.parSequenceN), and type class abstractions (MonadCancelThrow, Async, Temporal) that allow library code to be effect-system-agnostic. Powers http4s, fs2, Doobie, and most Typelevel libraries.

MCP server integrating with Discord to provide AI-powered features for Discord servers. Enables AI agents to read messages, send responses, manage channels, and interact with Discord server content — supporting Discord community management and moderation AI workflows.

Fli MCP server enabling AI agents to search for flights — querying Google Flights data for available flights between airports, retrieving fare prices and schedules, finding cheapest travel dates, and integrating flight search into agent-driven travel planning and booking research workflows.

Google Scholar MCP server enabling AI agents to search academic literature — querying Google Scholar for research papers, retrieving citation counts and author profiles, searching by keyword or author, and integrating scholarly search into agent-driven academic research, literature review, and citation analysis workflows.

Python dataframe library that compiles expressions to SQL across 20+ backends (DuckDB, BigQuery, Snowflake, Spark, etc.) without data movement.

The original static site generator, written in Ruby. Jekyll transforms Markdown and Liquid templates into static HTML. Powers GitHub Pages natively — any GitHub repo with a Jekyll site auto-deploys to Pages. The standard choice for GitHub-hosted documentation, personal blogs, and project sites. Uses Liquid templating (Shopify's template language), a simpler alternative to Hugo's Go templates.

Android's modern declarative UI toolkit built in Kotlin. Replaces XML layouts with composable functions — UI is expressed as Kotlin code that reacts to state changes. Compose integrates with ViewModel, LiveData, StateFlow, Navigation, and the full Jetpack ecosystem. Material Design 3 components included. The official direction for new Android UI development since 2021.

High-level deep learning API — builds and trains neural networks with a clean, consistent interface. Keras 3 features: multi-backend support (TensorFlow, JAX, PyTorch — switch with KERAS_BACKEND env var), Sequential and Functional model APIs, Model subclassing, built-in layers (Dense, Conv2D, LSTM, Transformer, MultiHeadAttention), compile/fit/evaluate/predict workflow, callbacks (ModelCheckpoint, EarlyStopping, TensorBoard), preprocessing layers, KerasHub pretrained models, and keras.ops for backend-agnostic operations. Keras 2 was TensorFlow-only; Keras 3 runs on any backend. Designed for accessibility with maximum developer productivity.

Queue supervisor and dashboard for Laravel — provides a beautiful web UI for monitoring Redis queues, configuring workers, and managing failed jobs. Horizon features: real-time queue metrics (jobs/min, wait time, throughput), worker configuration via config/horizon.php (supervisor processes, queue priorities, max jobs per worker), job tags for filtering, job retry from dashboard, failed job alerts, job metrics history, and Supervisor-compatible process management. Horizon supervises worker processes automatically, maintaining configured worker count. Requires Redis queue driver. Alternative to plain `php artisan queue:work` with process management and observability.

Lightweight authentication system for Laravel — provides API token authentication for SPAs, mobile apps, and simple token-based APIs. Sanctum features: personal access tokens (opaque bearer tokens stored hashed in personal_access_tokens table), SPA authentication (cookie-based session auth for same-domain SPAs, no tokens needed), token abilities (fine-grained scopes: agent:read, agent:create), token expiration, and the HasApiTokens trait for User model. Simpler alternative to Passport (OAuth2) — no OAuth server overhead. `$token = $user->createToken('agent-client', ['agent:read', 'agent:create'])->plainTextToken` generates token. Middleware: auth:sanctum validates Bearer token for agent API.

Microsoft's fast, memory-efficient gradient boosting framework that uses histogram-based algorithms and leaf-wise tree growth to train faster than XGBoost on large datasets while natively handling categorical features.

Boilerplate template for creating remote MCP servers hosted on Cloudflare Workers with built-in OAuth authentication (Google/GitHub), Stripe payment integration (subscriptions, metered billing, one-time payments), and Cloudflare KV for user data. Provides ready-made patterns for both free and paid MCP tools.