{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "d223be3385ef1aab15193010a0811da5be7dafff72d1e047dd577051267e6b92",
  "signature": "Z7pfT9nK/s9qZjKR0T/ZNdgrPTaIDVQ2HlHy1DD7mSdTScyXEt75yAW/9PgQYAzqihcnu03rFyjm9BAv8wtACw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-10-08T16:25:45.597Z",
  "slug": "calendar-scheduler",
  "version": "0.1.0",
  "filename": "calendar-scheduler-agent-plugin.zip",
  "bytes": 3236,
  "content_digest": "29cce435532cba2251296fdf1c731da6ebdadf305a98d27afdb6994c0d0a31f6",
  "content_signature": "jToDLC+ezuONNPGnYTQXR5+TfDyCcbHZL/V88T83oA/p0KKsgosS3R+8DOtMoMiy3EvuIibOnJFNL5kkUB5MAg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "030a1a8acbbf3eb069817deb8641eeb817fb9b23db575db44738c087bb985ccb"
    },
    {
      "path": "skills/calendar-scheduler/SKILL.md",
      "sha256": "fa985faaa668e4dccf45ca72210f2de1fcbebb6860abc1736392b33e2cde9860"
    }
  ],
  "verify": {
    "public_key_url": "https://superagentskill.com/api/public/signing-key.pem",
    "instructions": "sha256 the downloaded .zip, compare with `sha256`, then verify the base64 `signature` as an Ed25519 signature over the ascii sha256 hex string using the public key. An extracted or repacked copy can still be verified via `content_digest` / `content_signature`. Helper: node scripts/verify-package-signature.mjs <file.zip> <signature.json> [public-key.pem]"
  }
}