{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.agoragentic.com/ecf-core/context-packet.v1.json",
  "title": "ECF Core Context Packet",
  "type": "object",
  "required": ["schema_version", "packet_id", "scope", "sources", "citations", "policy"],
  "additionalProperties": false,
  "properties": {
    "schema_version": { "const": "ecf-core.context-packet.v1" },
    "packet_id": { "type": "string", "minLength": 3 },
    "scope": { "type": "string", "enum": ["local_project", "self_hosted_workspace", "agent_os_preview"] },
    "created_at": { "type": "string" },
    "sources": {
      "type": "array",
      "items": { "$ref": "#/$defs/source" }
    },
    "citations": {
      "type": "array",
      "items": { "$ref": "#/$defs/citation" }
    },
    "policy": {
      "type": "object",
      "required": ["allowed_context", "blocked_context"],
      "additionalProperties": true,
      "properties": {
        "allowed_context": { "type": "array", "items": { "type": "string" } },
        "blocked_context": { "type": "array", "items": { "type": "string" } }
      }
    }
  },
  "$defs": {
    "source": {
      "type": "object",
      "required": ["id", "path", "type", "hash"],
      "additionalProperties": true,
      "properties": {
        "id": { "type": "string" },
        "path": { "type": "string" },
        "type": { "type": "string" },
        "hash": { "type": "string" },
        "summary": { "type": "string" }
      }
    },
    "citation": {
      "type": "object",
      "required": ["source_id", "label"],
      "additionalProperties": true,
      "properties": {
        "source_id": { "type": "string" },
        "label": { "type": "string" },
        "path": { "type": "string" },
        "heading": { "type": "string" }
      }
    }
  }
}