event-atoms

Event primitives — types, schemas, channels, subscription patterns, delivery semantics — paired with Service Atoms to cover the request/response and async halves of distributed systems.

event-atoms is a *-Atoms catalog in the Convergent Systems ecosystem. It defines what exists in its domain — typed, versioned, machine-readable, composable, and open — so runtimes (and humans) can stand on shared infrastructure instead of reinventing it.

Structure

event-atoms/
├── ATOMS.yml              # Catalog manifest
├── atoms/                 # Reusable building blocks
├── streams/           # Compositions assembled from atoms
├── rules/                 # Typed constraint vocabulary
├── schemas/               # Catalog-specific JSON Schemas
├── exports/               # CI-generated machine-readable exports
└── docs/                  # Human-readable documentation

Atom types

• event-type
• schema
• channel
• subscription-pattern
• delivery-semantics

Rule types

• schema-evolution
• delivery-guarantee
• ordering-constraint

Runtime consumers

universal-bus

How to consume

Machine-readable exports are published in exports/ on every release:

• exports/manifest.json — lightweight discovery (name, version, counts)
• exports/catalog.json — full catalog dump (every atom, composition, rule)

Exports are deterministic, signed, and versioned. See ATOMS.yml for the manifest and the conformance spec.

How to contribute

1. Read ATOMS.yml to understand the catalog's atom types, compositions, and rules.
2. Add a new atom under atoms/<type>/ or a composition under streams/<name>/.
3. Open a PR. CI validates the schema, references, and exports.
4. Larger structural changes go through the XAIP process.

Ecosystem

• Federation: xdao.co · github.com/convergent-systems-co/xdao
• Spec: github.com/convergent-systems-co/atoms-spec
• Tools: github.com/convergent-systems-co/atoms-tools
• Umbrella: github.com/convergent-systems-co/atoms — all catalogs as submodules
• Other catalogs: brand-atoms, service-atoms, prompt-atoms, policy-atoms, identity-atoms, compliance-atoms, workflow-atoms, agent-atoms, knowledge-atoms, event-atoms, plugin-atoms

License

Apache-2.0 — see LICENSE.