Block Open Source
28 Tools · 1 Intel
Block Open Source is the GitHub organization for open-source work at Block, Inc., the American technology and financial services company formerly known as Square, Inc. Its README says most of Block's open-source work lives in related organizations, including Square, Cash App, Afterpay, TIDAL, Bitkey and the Lightning and Bitcoin Dev Kits. Projects credited to it in this directory include Agent Task Queue, Cachew and ElasticGraph.
Tools
Android library that prints the view hierarchy or Jetpack Compose tree as a string for debugging and bug reports.
Rust tool for managing AI rules, commands, and skills across multiple coding agents from one place.
AI-driven Android UI testing framework where plain-language test descriptions let an agent drive the app.
Scans Git repositories for security vulnerabilities with LLM analysis, delivered as a Go CLI.
Schema-driven GraphQL framework that runs on Elasticsearch or OpenSearch, written in Ruby.
Incubator for AI coding projects aimed at operating codebases spanning millions of lines of code.
Local queue that stops multiple AI agents from running expensive operations at once and thrashing your machine.
CLI and IntelliJ plugin that formats Kotlin code, enforcing a consistent style via ktfmt.
Collaborative tool for planning AI coding workflows together with agents, built in Ruby.
Kotlin library that estimates Bitcoin transaction fees from mempool data for wallets and services.
MCP server that gives AI coding agents access to Xcode's project index.
MCP server that lets AI agents control and execute code inside Jupyter notebooks.
Git prepare-commit-msg hook written in Rust that adds AI agent attribution to commits.
Python tool that generates meaningful Git commit messages with large language models.
Runs a local web UI for browsing and managing threads from the Amp AI coding agent.
Intel
Buzz is a self-hostable team workspace built on the Nostr protocol where AI agents participate as first-class members alongside humans, sharing the same channels, identity model, and audit log. Agents can open repos, submit patches, review code, run YAML-defined workflows, edit canvases, and join voice huddles with their own signed keypairs, unifying chat, git hosting, CI, and search into a single event log.