Changelog · shipping in public
Shipping in public. Follow along on the blog.
The Arc SDK + CLI (npm install @geostack/arc, bin: arc) and the MCP transport adapter (@geostack/arc-mcp-adapter, bin: arc-mcp-adapter) are published. Install, point the CLI at a local Arc server, and guard your first action in five minutes.
Set a budget per agent and Arc blocks before a runaway loop blows past it — counting cost across every action, not just one. The primitive behind the whole product.
Every attempt, approval, and block is recorded in a tamper-evident log you can read and export.
Expose Arc-guarded actions to any MCP-speaking agent (Claude Desktop, Cursor) with no code change.
Want the longer story behind each release? Read the blog.
