{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://prism-framework.org/schema/1.0/prism-a/quality",
  "title": "PRISM/A — Q: Quality",
  "description": "Quality snapshots, SLOs, and tech debt records for components in the application landscape.",
  "type": "object",
  "required": ["prism_a"],
  "additionalProperties": false,
  "properties": {
    "prism_a": {
      "type": "object",
      "required": ["dimension", "schema_version"],
      "additionalProperties": false,
      "properties": {
        "dimension": { "const": "quality" },
        "schema_version": { "type": "string", "pattern": "^\\d+\\.\\d+$" },
        "temporal_state": { "type": "string", "enum": ["baseline", "transition", "target"] },
        "as_of": { "type": "string", "format": "date" },
        "label": { "type": "string" }
      }
    },
    "quality_metrics": {
      "type": "array",
      "description": "Point-in-time quality snapshots for components. Capture what's true now, not what's aspirational.",
      "items": {
        "type": "object",
        "required": ["id", "name", "artifact_type", "component_id"],
        "additionalProperties": false,
        "properties": {
          "id": {
            "type": "string",
            "description": "Stable identifier. Prefix convention: 'qual-'."
          },
          "name": {
            "type": "string",
            "description": "Human-readable label for this quality record."
          },
          "artifact_type": {
            "type": "string",
            "enum": ["quality_metric", "slo", "tech_debt_record"],
            "description": "Type of quality artifact."
          },
          "component_id": {
            "type": "string",
            "description": "The component ID (from the C dimension) this quality record describes."
          },
          "description": {
            "type": "string",
            "description": "Context and observations about this component's quality."
          },
          "last_assessed": {
            "type": "string",
            "format": "date",
            "description": "Date this quality data was last verified or updated."
          },
          "test_coverage": {
            "type": "number",
            "minimum": 0,
            "maximum": 100,
            "description": "Automated test coverage percentage."
          },
          "tech_debt_level": {
            "type": "string",
            "enum": ["none", "low", "medium", "high", "critical"],
            "description": "Overall tech debt severity for this component."
          },
          "tech_debt_notes": {
            "type": "string",
            "description": "Description of specific tech debt items and their root cause."
          },
          "tech_debt_resolution": {
            "type": "string",
            "description": "Planned approach or linked migration program to resolve the tech debt."
          },
          "reliability": {
            "type": "string",
            "enum": ["high", "medium", "low"],
            "description": "Observed reliability of this component in production."
          },
          "security_posture": {
            "type": "string",
            "enum": ["strong", "moderate", "weak"],
            "description": "Current security posture based on last assessment or audit."
          },
          "slo_target": {
            "type": "string",
            "description": "The SLO target value (e.g. '99.9% availability', 'p95 < 200ms'). Required when artifact_type is 'slo'."
          },
          "slo_current": {
            "type": "string",
            "description": "Current measured value against the SLO target."
          },
          "breach_history": {
            "type": "array",
            "description": "Historical SLO breaches. Each entry is a date or period description.",
            "items": {
              "type": "object",
              "required": ["date"],
              "additionalProperties": false,
              "properties": {
                "date": { "type": "string", "format": "date" },
                "description": { "type": "string" },
                "duration_minutes": { "type": "integer" }
              }
            }
          },
          "depends_on": {
            "type": "array",
            "description": "Component IDs that this quality record also references (e.g. upstream dependencies affecting reliability).",
            "items": { "type": "string" }
          },
          "tags": {
            "type": "array",
            "items": { "type": "string" }
          },
          "notes": {
            "type": "string"
          }
        }
      }
    }
  }
}