Connector registry

Every officially-maintained parsimony-<name> distribution declares itself to the kernel through entry-point metadata in its pyproject.toml:

[project.entry-points."parsimony.providers"]
<provider_id> = "parsimony_<name>"

The value is a bare importable module path, not a module:attr target. The kernel imports that module and reads its top-level CONNECTORS = Connectors([...]) export.

Consumers (agent frameworks, CLIs) discover installed providers at runtime via the kernel's parsimony.discover surface (discover.load_all() and discover.load(*names)). Entry-point metadata on the installed distribution is the authoritative source; this monorepo does not ship a separate index file.

Adding an officially-maintained connector

1. Add packages/<name>/ with a pyproject.toml that declares a [project.entry-points."parsimony.providers"] stanza (CI enforces this invariant; see .github/workflows/ci.yml → discover job).
2. Follow the conformance contract in the kernel's parsimony.testing module — CI runs assert_plugin_valid on every package.
3. Publish through the monorepo's per-package release workflow.