Types & Schema References

MRP manifests and payloads may refer to common types using schema_ref.

Goal

Make discovery and wiring machine-automatic: if a node outputs schema://mrp/types/text@1.0, another node that accepts that type can be linked without guessing.

Suggested Registry Convention

• schema://mrp/types/<name>@<version> for shared core types
• Providers MAY also publish custom types under their namespace:
  • schema://service:clawdbots/summarize/types/<name>@<version>

Core Types (starter set)

• text@1.0 (UTF-8 string)
• url@1.0 (URL string)
• json@1.0 (arbitrary JSON value)
• markdown@1.0 (markdown string)
• artifact@1.0 (see schemas/types/artifact.schema.json)

Where to host

Providers SHOULD expose:

• GET /mrp/schemas (index)
• GET /mrp/schemas/<path> (actual JSON Schemas)

Agents MAY cache schemas by $id.