{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://voice.chungty.dev/machine/schema.json",
  "title": "Thomas Voice agent contract",
  "oneOf": [
    { "$ref": "#/$defs/request" },
    { "$ref": "#/$defs/response" }
  ],
  "$defs": {
    "fact": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id", "text", "source", "confidence"],
      "properties": {
        "id": { "type": "string", "minLength": 1 },
        "text": { "type": "string", "minLength": 1 },
        "source": { "enum": ["user-provided", "public-source", "verified-record"] },
        "confidence": { "type": "number", "minimum": 0, "maximum": 1 }
      }
    },
    "request": {
      "type": "object",
      "additionalProperties": false,
      "required": ["kind", "surface", "intent", "audience", "authorship", "content"],
      "properties": {
        "kind": { "const": "request" },
        "surface": { "enum": ["quick-chat", "professional-outreach", "email", "team-update", "public-post", "long-form", "sensitive-note", "agent-handoff", "release-notes", "neutral-public"] },
        "intent": { "type": "string", "minLength": 1 },
        "audience": {
          "type": "object",
          "additionalProperties": false,
          "required": ["kind"],
          "properties": {
            "kind": { "type": "string", "minLength": 1 },
            "relationship": { "type": "string" },
            "knowledge_level": { "enum": ["new", "familiar", "expert", "mixed"] }
          }
        },
        "authorship": {
          "type": "object",
          "additionalProperties": false,
          "required": ["mode", "may_speak_as_thomas", "may_attribute_to_thomas"],
          "properties": {
            "mode": { "const": "draft-for-review" },
            "may_speak_as_thomas": { "const": false },
            "may_attribute_to_thomas": { "const": false }
          }
        },
        "content": {
          "type": "object",
          "additionalProperties": false,
          "required": ["facts"],
          "properties": {
            "facts": { "type": "array", "items": { "$ref": "#/$defs/fact" } },
            "required_points": { "type": "array", "items": { "type": "string", "minLength": 1 } },
            "prohibited_claims": { "type": "array", "items": { "type": "string", "minLength": 1 } }
          }
        },
        "constraints": {
          "type": "object",
          "additionalProperties": false,
          "properties": {
            "max_words": { "type": "integer", "minimum": 1 },
            "sensitivity": { "enum": ["public", "internal", "sensitive"] },
            "must_preserve_uncertainty": { "type": "boolean" }
          }
        }
      }
    },
    "response": {
      "type": "object",
      "additionalProperties": false,
      "required": ["kind", "draft", "applied_rules", "unresolved", "review_flags", "authorized_to_publish", "validation"],
      "properties": {
        "kind": { "const": "response" },
        "draft": { "type": "string" },
        "applied_rules": { "type": "array", "items": { "type": "string", "minLength": 1 } },
        "unresolved": { "type": "array", "items": { "type": "string" } },
        "review_flags": { "type": "array", "items": { "type": "string" } },
        "authorized_to_publish": { "const": false },
        "validation": {
          "type": "object",
          "additionalProperties": false,
          "required": ["deterministic"],
          "properties": {
            "deterministic": {
              "type": "object",
              "additionalProperties": false,
              "required": ["passed", "failures"],
              "properties": {
                "passed": { "type": "boolean" },
                "failures": { "type": "array", "items": { "type": "object" } }
              }
            },
            "model_graded": { "enum": ["not-run", "passed", "failed"] }
          }
        }
      }
    }
  }
}