{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://bare-os.dev/schemas/kernel-extensions.registry.schema.json",
  "title": "Bare OS /proc/bare_os/extensions.json (schema v2–v9)",
  "oneOf": [
    {
      "type": "object",
      "required": ["schema", "entries"],
      "additionalProperties": true,
      "properties": {
        "schema": { "type": "integer", "const": 2 },
        "featureBitsDoc": { "type": "integer", "minimum": 0 },
        "entries": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["dropin", "script", "atMs"],
            "additionalProperties": true,
            "properties": {
              "dropin": { "type": "string" },
              "script": { "type": "string" },
              "semver": { "type": "string" },
              "capabilities": {
                "type": "array",
                "items": { "type": "string" },
                "maxItems": 32
              },
              "atMs": { "type": "integer", "minimum": 0 }
            }
          }
        },
        "atMs": { "type": "integer", "minimum": 0 }
      }
    },
    {
      "type": "object",
      "required": ["schema", "entries"],
      "additionalProperties": true,
      "properties": {
        "schema": { "type": "integer", "const": 5 },
        "featureBitsDoc": { "type": "integer", "minimum": 0 },
        "entries": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["dropin", "script", "atMs"],
            "additionalProperties": true,
            "properties": {
              "dropin": { "type": "string" },
              "script": { "type": "string" },
              "semver": { "type": "string" },
              "capabilities": {
                "type": "array",
                "items": { "type": "string" },
                "maxItems": 32
              },
              "compatPearBundleId": {
                "type": "string",
                "maxLength": 256,
                "description": "Opaque Pear bundle id for operator correlation (v5)"
              },
              "atMs": { "type": "integer", "minimum": 0 }
            }
          }
        },
        "atMs": { "type": "integer", "minimum": 0 }
      }
    },
    {
      "type": "object",
      "required": ["schema", "entries"],
      "additionalProperties": true,
      "properties": {
        "schema": { "type": "integer", "const": 8 },
        "featureBitsDoc": { "type": "integer", "minimum": 0 },
        "extensionSignerPinsV4Note": {
          "type": "string",
          "maxLength": 256,
          "description": "Optional operator note correlating boot.policy extensionSignerPinsV4 (word 11)"
        },
        "entries": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["dropin", "script", "atMs"],
            "additionalProperties": true,
            "properties": {
              "dropin": { "type": "string" },
              "script": { "type": "string" },
              "semver": { "type": "string" },
              "capabilities": {
                "type": "array",
                "items": { "type": "string" },
                "maxItems": 32
              },
              "compatPearBundleId": {
                "type": "string",
                "maxLength": 256
              },
              "trustPolicy": {
                "type": "string",
                "enum": ["default", "pinned", "quorum-sketch"],
                "description": "Optional operator trust class for extension resolution (schema 8)"
              },
              "abiRange": {
                "type": "object",
                "additionalProperties": false,
                "properties": {
                  "min": { "type": "string", "maxLength": 32 },
                  "max": { "type": "string", "maxLength": 32 }
                },
                "description": "Optional ctx / bundle ABI semver window for this entry"
              },
              "atMs": { "type": "integer", "minimum": 0 }
            }
          }
        },
        "atMs": { "type": "integer", "minimum": 0 }
      }
    },
    {
      "type": "object",
      "required": ["schema", "entries"],
      "additionalProperties": true,
      "properties": {
        "schema": { "type": "integer", "const": 9 },
        "featureBitsDoc": { "type": "integer", "minimum": 0 },
        "resolverModule": {
          "type": "string",
          "description": "Shared topological resolver module id (schema 9)"
        },
        "ed25519PolicyBridge": { "type": "object", "additionalProperties": true },
        "entries": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["dropin", "script", "atMs"],
            "additionalProperties": true,
            "properties": {
              "dropin": { "type": "string" },
              "script": { "type": "string" },
              "semver": { "type": "string" },
              "capabilities": {
                "type": "array",
                "items": { "type": "string" },
                "maxItems": 32
              },
              "id": { "type": "string" },
              "dependsOn": {
                "type": "array",
                "items": { "type": "string" }
              },
              "signaturePointer": { "type": "string", "maxLength": 512 },
              "loadMs": {
                "type": "integer",
                "minimum": 0,
                "maximum": 3600000,
                "description": "Wall ms for extension script execution (schema 9)"
              },
              "atMs": { "type": "integer", "minimum": 0 }
            }
          }
        },
        "atMs": { "type": "integer", "minimum": 0 }
      }
    }
  ]
}