Open-source tools by HASH

Resources

HASH publishes a range of open-source tools — from user-facing applications and public registries, through to the npm packages and Rust crates you can drop into your own projects.

Applications

User-facing products and hosted apps, each with its own dedicated site.

A self-building graph that automatically captures and structures your world as context, with full provenance, supporting causal inference, reasoning, analysis and simulation

hash.ai

brunch

Specify intentions clearly and completely — built to help engineers brief AI coding agents (and humans) without ambiguity

brunch.ai

A visual editor for Petri nets, with progressive support for Stochastic Dynamic Coloured Petri Nets (SDCPNs)

petrinaut.org

Registries

Public registries and open standards that anyone can build on

A public user interface component registry and open standard — discover, publish, and compose interoperable 'blocks' across tools

blockprotocol.org

A public type registry — decentralized, composable semantic types that let anybody define anything they care about, in their own terms, in a cross-compatabile way

semtype.org