Vertical Pattern (Contract-First)

This page defines the standard pattern for all new verticals.

Core Rule

No vertical can bypass contracts. Domain logic must be attached through adapters implementing canonical interfaces.

Mandatory Pieces

• intent_config
• README
• manifest

Adapter Model

• LangGraph plugin adapter
• Optional LangGraph graph-nodes hook (domains/<domain>/graph_nodes/registry.py)
• Sacred Orders governance adapter
• Optional Neural Engine adapters (IDataProvider, IScoringStrategy)

Canonical Contract Namespace

Use contracts as unique import surface:

• contracts.GraphPlugin
• contracts.BaseParser
• contracts.IDataProvider
• contracts.IScoringStrategy
• contracts.ILLMProvider

Template

Use:

• docs/contracts/verticals/templates/vertical_manifest.yaml