Validation Rules

Artifact-Level Rules

1. domain-id must match the Domain Bundle folder.
2. Artifact kind values must be exact and supported.
3. Every root reference must include id and source.
4. Referenced substrate-definition artifact id must match its root reference id.

Launch Rules

1. launch.launcher must be present.
2. launch.target.module-path must be present.
3. launch.target.symbol-name must be present.
4. Comms substrate definitions must include channel, protocol, and requires-session-id.

Inheritance Rules

1. Leaf lamina must resolve to a known inheritance chain.
2. Resolved chain must include required parent laminae.
3. Modulator ids must resolve to known lamina-owned definitions.

Error Semantics

1. Unknown artifact kinds fail fast.
2. Unsupported remote source forms fail with explicit unsupported-source messages.
3. Unknown modulator ids fail with explicit unresolved-modulator messages.
4. Missing required launch keys fail with exact missing-field messages.