Thomas Dohmke, former GitHub CEO, has launched Entire, a new developer platform for AI agents, with a $60 million seed round led by Felicis. The company’s first product is an open-source CLI tool named Checkpoints, designed to capture and version agent session context directly within Git repositories.

Modern AI coding agents from Anthropic, OpenAI, and others generate massive code volumes, but the traditional software development lifecycle isn't built for machine-to-machine collaboration. Git preserves changes but loses the 'why'—the prompts, reasoning, and constraints behind agent-generated code. This context gap causes duplicated effort, wasted tokens, and fractured agent collaboration.

Checkpoints solve this by automatically creating structured, versioned metadata objects on every agent commit. The CLI writes session transcripts, prompts, and tool calls to a dedicated Git branch, creating an append-only audit log. This enables traceability for code reviews, seamless handoffs between agents and humans, and prevents repeated mistakes. Support for Claude Code and Gemini CLI is live, with Codex and Cursor coming soon.

By releasing the CLI as open source, Entire aims to build a universal, agent-agnostic semantic layer. The metadata becomes foundational for future multi-agent coordination. The tool is available now via a simple brew install and `entire enable` command, giving developers immediate traceability without altering their existing code or workflow.