Antique

Scion is Anthropic's in-house version-control system, built to replace Git for the company's large monorepo. It uses always-online agent clients, server-side commits, sparse or virtualized checkouts, and storage split between Spanner and blob storage. The system is designed to scale horizontally and, according to Anthropic's account, uses substantially less infrastructure than its previous Git-mirroring setup.

Ant CLI is a command-line tool from Anthropic for managing Claude-based agents. It lets developers define long-term agent resources in YAML within a codebase and synchronize or update those definitions from CI/CD pipelines in a Terraform-style workflow. The workshop describes its use for versioning agent configurations and supporting tenant isolation across workspaces, organizations, or session metadata.

Sonnet 5.5 is an Anthropic AI model positioned as a responsive workhorse for everyday coding, orchestration, and agentic coding tasks. Anthropic describes it as an upgrade over Sonnet 5 that runs 30% faster and costs up to 30% less for most work.

Ante is a self-contained terminal coding agent and agent harness developed by Antigma Labs. It is distributed as a single Rust executable with no runtime dependencies and is designed to work with provider APIs, subscriptions, or local GGUF models. Its core embeds Grep and git operations in one process and uses a managed version of llama.cpp for local inference. In offline mode, it runs the coding-agent loop entirely on the user's machine without an API key, account, or internet connection; settings profiles can define the agent and its system prompt. The project also supports multiple providers, multi-agent orchestration, MCP skills, and memory. Ante is in beta preview, with breaking changes and incomplete functionality expected. The repository states that macOS and Linux are supported and recommends WSL for Windows.

Anthropic API is the cloud API provided by Anthropic, the AI research company, offering programmatic access to its Claude family of large language models for text generation, chat, and reasoning. The API is intended for developers to integrate Anthropic's models into applications and services.