{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.kxm.dev/context-candidate.schema.json",
  "title": "KXM evidence-linked improvement candidate",
  "type": "object",
  "required": [
    "schema",
    "id",
    "projectId",
    "sourceRunId",
    "type",
    "scope",
    "summary",
    "authority",
    "confidence",
    "status",
    "activation",
    "evidenceRefs",
    "createdAt"
  ],
  "properties": {
    "schema": { "const": "kxm.context-candidate.v1" },
    "id": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "projectId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "sourceRunId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "sourceConfigRevision": { "$ref": "common.schema.json#/$defs/sha256" },
    "sourceMemoryRevision": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "type": { "enum": ["knowledge", "skill", "workflow", "agent", "model", "environment", "template", "temporal-state"] },
    "scope": {
      "type": "object",
      "required": ["kind"],
      "properties": {
        "kind": { "enum": ["project", "repository"] },
        "repositoryId": { "$ref": "common.schema.json#/$defs/identifier" }
      },
      "allOf": [
        {
          "if": { "properties": { "kind": { "const": "repository" } }, "required": ["kind"] },
          "then": { "required": ["repositoryId"] },
          "else": { "not": { "required": ["repositoryId"] } }
        }
      ],
      "additionalProperties": false
    },
    "summary": { "type": "string", "minLength": 1, "maxLength": 2000 },
    "authority": { "const": "evidence" },
    "confidence": { "enum": ["verified", "probable", "uncertain"] },
    "status": { "enum": ["proposed", "evaluating", "review-required", "promoted", "rejected", "quarantined"] },
    "activation": { "const": "review-required" },
    "targetPath": { "$ref": "common.schema.json#/$defs/relativePath" },
    "proposedChange": { "$ref": "common.schema.json#/$defs/artifactRef" },
    "evidenceRefs": {
      "type": "array",
      "items": { "$ref": "common.schema.json#/$defs/evidenceRef" },
      "minItems": 1,
      "maxItems": 64
    },
    "evaluation": {
      "type": "object",
      "properties": {
        "status": { "enum": ["not-started", "running", "passed", "failed", "quarantined"] },
        "metric": { "$ref": "common.schema.json#/$defs/identifier" },
        "expectedDirection": { "enum": ["increase", "decrease", "maintain"] },
        "evidenceRefs": {
          "type": "array",
          "items": { "$ref": "common.schema.json#/$defs/evidenceRef" },
          "maxItems": 64
        }
      },
      "additionalProperties": false
    },
    "createdAt": { "$ref": "common.schema.json#/$defs/timestamp" },
    "updatedAt": { "$ref": "common.schema.json#/$defs/timestamp" }
  },
  "additionalProperties": false
}