Building blocks and infrastructure for developers

This Azure sample demonstrates how an ASP.NET Web API can manually validate JWT access tokens issued by the Microsoft identity platform, including checks for audience, issuer, lifetime, tenant, and expected scopes. A WPF client calls the protected TodoList API, and the repository documents app registration, configuration, local execution, and deployment. Users must replace the sample tenant and application settings with values from their own identity environment.

This GitHub template provides a ready-made starting point for Svelte desktop applications built with Electron. It preconfigures TypeScript, path aliases, live reload, formatting, linting, tests, internationalization, and a practical folder structure, so developers can begin with working examples instead of an empty project. After creating a repository from the template, run the web and Electron development processes together, then use the included scripts to build Windows, Linux, or macOS installers. It is intended for projects that specifically want the Electron runtime.

Loom combines a XeLaTeX document class with a Claude skill for creating notes that students both read and complete. It supports blanks, proof skeletons, do-it-yourself exercises, recall prompts, and a distinctive woven visual system; the companion skill can organize a chapter, draft the notebook, compile it, and check the result. Local use requires XeLaTeX with TeX Live 2023 or newer, and non-macOS users may need to swap the bundled system fonts or use one of the Overleaf-ready editions.

CALM lets you define a canvas application in `canvas.lisp`, run it as a desktop window, and handle drawing, input, and audio through a thin layer over SDL2 and Cairo. When the app is ready, its commands can package it for the current desktop platform or generate files for browser deployment. It suits Lisp developers building small graphical applications, but desktop packages are produced per operating system and unsigned downloads may trigger Windows or macOS security prompts.

This developer template demonstrates a Tauri v2 desktop application with a Next.js interface and a FastAPI backend. PyInstaller compiles the Python service into a single-file sidecar that Tauri starts and stops, while the frontend communicates with it over local HTTP, so end users do not need a separate Python installation. Developers can build platform-specific installers locally or adapt the included GitHub Actions workflow for Windows, macOS, and Linux releases.

SUPER evaluates whether LLM agents can configure environments, execute code, and answer questions drawn from real machine-learning and NLP research repositories. Its dataset is divided into Expert, Masked, and AutoGen task sets, with code for running agents and scoring results. Local mode executes repository code directly on the machine, while Docker and Modal backends offer safer isolation and concurrent benchmark runs.

An interactive setup adds test infrastructure to TypeScript or Python projects, while one CLI dispatches Playwright web tests, Appium mobile tests, or k6 load tests. AI planner, generator, and healer definitions are currently focused on TypeScript, and several other test types, including API, accessibility, and visual regression, are still planned.

Embed Claude Code, Codex, Gemini, or OpenCode in a Rust application without writing separate subprocess and event parsers for each tool. gate4agent normalizes Pipe, PTY, and ACP sessions into transport-neutral events, supports session resume and multi-turn ACP callbacks, and tracks history and context usage. It is a transport layer, not an agent harness or security sandbox.

SAP-RPT-1-OSS Predictor helps prepare SAP extracts and run classification or regression with SAP’s open-source tabular foundation model using in-context learning. It includes local prediction and batch-processing helpers, with an optional playground API path. A Hugging Face account is required, and a 24–80 GB GPU is recommended for the intended workloads.

NorthData Connectors wraps the NorthData API with a Python CLI, an MCP server, and a Claude skill that share one client and credit guard. It exposes German company profiles, owners, representatives, financials, and publications to shell scripts, CI jobs, and MCP-capable agents without duplicating API logic. A NorthData API key is required, usage remains subject to NorthData's terms, and the wrapper is an unofficial community project.

lacuna-toolkit exposes the Lacuna Music API through a TypeScript SDK, a command-line tool, an MCP server, and an Agent Skill. Developers can generate music from Node 18+, shell scripts, an MCP-compatible client, or an AI coding agent, while the SDK also handles webhook verification. Using any surface still requires access to the Lacuna service and its credentials.

Peg helps you create consistent slide decks and data-heavy presentations without starting in a design tool. It supplies opinionated HTML templates, CSS design tokens, React components, and entrance or transition animations built around typography, restrained color, and flat layouts. Chinese typography and reduced-motion preferences are handled explicitly, while static exports preserve the completed visual state.

Provide hierarchical data and drilldown-table renders the same corner-header report layout to XLSX, DOCX, or PPTX from one shared engine. It supports row, column, and two-dimensional drill-downs, uneven two-to-four-level branches, automatic totals, and three visual themes. Users can run it as a Claude or Codex skill, a Windows desktop app, a browser tool, or a Python library.

Velk helps C++ applications define components through interfaces with typed properties, events, functions, and metadata. Runtime implementations live in a shared library while consumers depend on stable public contracts, allowing internals to evolve without rebuilding every client. Its registries, plugin loading, object factory, and dense storage suit modular systems that need runtime extension and introspection.

Chameleon replaces hardcoded colors with a small semantic CSS contract that can be reused across HTML artifacts. Its Claude Code skill can create themed pages or propose a dry-run conversion for existing files, while a Chrome extension applies the reader's saved theme across compatible pages. For durable or offline artifacts, the theme can be baked into the HTML and pinned to a contract version.

Naze combines UI structure, state, and interactions in a declarative language that compiles to WebAssembly and renders through Canvas2D rather than the DOM. Its toolchain includes compilation, type checking, testing, examples, and project-context export for AI agents, but the project is still experimental and explicitly not ready for production use.

Library OS combines a Next.js template, TypeScript schema, Claude Code commands, and a book-distillation subagent to turn titles, notes, Kindle highlights, or voice memos into structured book pages. Its workflow covers capture, extraction, enrichment, and publishing, with JSON-LD, quote sharing, and dynamic social images; the full site targets Next.js 14, Tailwind, and TypeScript.

Simple Host lets a coding agent deploy a static website together with a small per-site backend for JSON state, append-only collections, comments, feedback, private pages, and starter templates. Each upload becomes an immutable version that can be rolled back, and magic-link sign-in supplies an API key. The service can also be self-hosted as one Go binary, but that path requires Postgres, environment variables, and a carefully chosen administrator key.