ad4m-link-template-language-dna

What is ad4m-link-template-language-dna and what is it for?

It is a template repository for building an AD4M link language, the kind of module that defines how a set of shared links is stored and synchronised between agents. It exists so that someone writing a new link language for Coasys's AD4M framework can start from a working skeleton, including the version of the template that carries a Holochain DNA, instead of assembling the module from nothing.

Coasys publishes a small family of AD4M language templates, and this is one of them: the link-language variant that includes a DNA. A template repository is a skeleton rather than a finished program — the code is meant to be cloned and edited. Its README calls it an expression language template and asks that any language added to it be Deno-compatible, and its Usage section is still a note asking for instructions to be written.

In AD4M, a language is the part of the system that says how agents store, retrieve and address data, and every stored item is reachable through a language-specific address. Link languages are the layer that synchronises a shared set of links between several agents, which is what an AD4M Neighbourhood is built on: the shared graph can then be read through different apps at the same time. Coasys's documentation describes link-language templates both with and without a DNA, and its own default Holochain-backed template, Perspective Diff Sync, is the pattern the family follows — it keeps a CRDT-style revision history and gives each instance its own isolated network.

The people this repository is aimed at are developers writing a new link language for a Neighbourhood with its own sync behaviour: they clone the template, adapt it, and an AD4M executor loads the result as a language module. For the intended shape of such a language, Coasys's framework documentation at docs.ad4m.dev is the place to read further.

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