Pactree

Pactree is a deterministic context-tree substrate for AI agents and applications. It gives agent context a concrete structure: ordered nodes, explicit operations, selector-based projection, compact storage, and branchable history.

The definitive Pactree engine is Rust. This JavaScript package reserves and defines the JS package boundary for future bindings around that engine.

Core goals:

• deterministic tree layout for agent context
• compact content-addressed storage
• branch, rewind, and what-if workflows
• provider-facing projections without losing substrate structure
• stable Rust semantics with ergonomic host-language APIs

This is an early package release. The public JavaScript namespace is available now; runtime bindings will arrive in the next extraction releases.