{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.orbiplex.ai/weak-signal-finding.v1.schema.json",
  "title": "Weak Signal Finding v1",
  "description": "Candidate weak-signal finding emitted by a local Harvester and imported into node review. This is not a publication artifact and does not authorize Whisper publication by itself.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": [
    "doc/project/20-memos/orbiplex-whisper.md",
    "doc/project/20-memos/orbiplex-monus.md",
    "doc/project/40-proposals/078-weak-signal-harvester.md"
  ],
  "required": [
    "schema",
    "finding/id",
    "created/at",
    "source/classes",
    "finding/summary",
    "finding/confidence",
    "finding/group-key",
    "source/refs",
    "privacy/review-required",
    "suggested/actions"
  ],
  "properties": {
    "schema": { "const": "weak-signal-finding.v1" },
    "finding/id": {
      "type": "string",
      "pattern": "^finding:[A-Za-z0-9._:-]{6,160}$"
    },
    "created/at": {
      "type": "string",
      "format": "date-time"
    },
    "source/classes": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": {
        "type": "string",
        "enum": ["document", "mail", "note", "filesystem-text", "markdown", "mbox", "maildir", "sensorium", "manual"]
      }
    },
    "signal/polarity": {
      "type": "string",
      "enum": ["problem", "idea", "question", "context", "mixed"]
    },
    "topic/class": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160,
      "pattern": "^[A-Za-z0-9][A-Za-z0-9._:/-]*$"
    },
    "finding/summary": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4096
    },
    "finding/confidence": {
      "type": "string",
      "enum": ["low", "medium", "high"]
    },
    "finding/group-key": {
      "type": "string",
      "pattern": "^sha256:[a-f0-9]{64}$"
    },
    "finding/supersedes": {
      "type": "array",
      "uniqueItems": true,
      "items": {
        "type": "string",
        "pattern": "^finding:[A-Za-z0-9._:-]{6,160}$"
      }
    },
    "source/refs": {
      "type": "array",
      "minItems": 1,
      "maxItems": 64,
      "items": { "$ref": "#/$defs/source_ref" }
    },
    "privacy/review-required": { "const": true },
    "privacy/flags": {
      "type": "array",
      "uniqueItems": true,
      "items": {
        "type": "string",
        "enum": [
          "contains-personal-data",
          "contains-sensitive-context",
          "metadata-stripped",
          "raw-source-local-only",
          "redaction-required",
          "whistleblower-risk"
        ]
      }
    },
    "suggested/actions": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": {
        "type": "string",
        "enum": ["whisper-draft", "local-note", "ignore", "assistance-request"]
      }
    },
    "harvester/ref": {
      "type": "string",
      "minLength": 1,
      "maxLength": 160
    },
    "metadata": {
      "type": "object",
      "additionalProperties": {
        "type": ["string", "number", "integer", "boolean", "null"]
      },
      "maxProperties": 32
    }
  },
  "$defs": {
    "source_ref": {
      "type": "object",
      "additionalProperties": false,
      "required": ["source/ref", "source/digest"],
      "properties": {
        "source/ref": {
          "type": "string",
          "minLength": 1,
          "maxLength": 512
        },
        "source/digest": {
          "type": "string",
          "pattern": "^sha256:[a-f0-9]{64}$"
        },
        "source/snippet/redacted": {
          "type": "string",
          "maxLength": 2048
        },
        "source/title": {
          "type": "string",
          "maxLength": 256
        },
        "source/observed-at": {
          "type": "string",
          "format": "date-time"
        }
      }
    }
  }
}