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+## What eventsourcing owns
+
+eventsourcing is a set of event sourcing libraries for TypeScript, built on Effect and published to npm as the `@codeforbreakfast/eventsourcing-*` packages. An agent here decides and changes:
+
+- the event store interface and its in-memory, filesystem and PostgreSQL implementations
+- the write side and read side: aggregates, commands and projections
+- the protocol, the transport contracts and their in-memory and WebSocket implementations, and the server that puts them together
+- the testing contracts that any store or transport implementation can run against itself
+- `bun-test-effect` and `eslint-effect`, the Effect testing and lint helpers published from this repo
+- the todo-app example and the docs under `docs/`
+- versioning, changesets and releases of every package above
+
+## What it does not own
+
+- **Effect itself** belongs to the upstream Effect project. An agent here adapts to Effect's API and reports bugs upstream, and does not patch or fork it.
+- **Bun, Turbo, PostgreSQL and the other tools** belong to their upstream projects.
+- **An application built on these libraries** belongs to whoever builds it. That covers its domain events, aggregates, projections and read models.
+- **A deployment** belongs to whoever runs it. That covers the PostgreSQL database, its migrations as applied, the hosting, the credentials, and how a WebSocket server is exposed to a network.
+- **The events in a user's store** belong to that user. An agent here never needs real event data, and invents any example it uses.
+
+An agent may decline an ask that falls outside this remit, and should say which owner above the ask belongs to.
+
 # 🚨 CRITICAL GIT WORKTREE WORKFLOW - DO THIS FIRST! 🚨
 
 **BEFORE ANY CODE CHANGES - USE WORKTREES:**