{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "urn:gdd:manifest:harnesses",
  "title": "manifest/harnesses.json",
  "type": "object",
  "required": [
    "schema_version",
    "harnesses"
  ],
  "additionalProperties": true,
  "properties": {
    "schema_version": {
      "type": "integer",
      "minimum": 1
    },
    "harnesses": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true,
        "required": [
          "id",
          "name"
        ],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^[a-z0-9-]+$"
          },
          "name": {
            "type": "string",
            "minLength": 1
          },
          "last_verified": {
            "type": ["string", "null"],
            "description": "YYYY-MM-DD of the last verify-harness run; null if never verified (Phase 44)."
          },
          "capability_notes": {
            "type": "string"
          },
          "fragment_links": {
            "type": "array",
            "items": { "type": "string" }
          },
          "capability_matrix": {
            "type": "object",
            "description": "Phase 44 harness capability matrix (a view of this SoT; HARNESSES.md is generated from it).",
            "additionalProperties": true,
            "required": ["status", "command_syntax", "install_path"],
            "properties": {
              "skill_discovery": { "type": "boolean" },
              "frontmatter_fields_supported": {
                "type": "array",
                "items": { "type": "string" }
              },
              "command_syntax": { "type": "string", "minLength": 1 },
              "mcp_support": { "type": "boolean" },
              "placeholder_substitution": { "type": "boolean" },
              "install_path": { "type": "string", "minLength": 1 },
              "status": {
                "type": "string",
                "enum": ["tested", "experimental", "untested", "known-broken"]
              }
            }
          }
        }
      }
    }
  }
}