{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "cb500e8a087d639a235e882d49fb4d76cfe10a4f86d61f44f87df1756c12a14b",
  "signature": "+Nbp+9n7+hRERXuCAUDoHj2OWArfSpJg6hkAqOyOTHtcjHyNQ8ZG6cd1YOCvBwOGHD/xkuBOslBKtnoKUTMsAA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:54:35.499Z",
  "slug": "ec-checkout-cro",
  "version": "0.1.0",
  "filename": "ec-checkout-cro-agent-plugin.zip",
  "bytes": 3815,
  "content_digest": "8656f7d787a201cd248c8730944e51d63a56d90c3cc60f2a98997602e10b29a1",
  "content_signature": "K1mZaxPaVBDbhy0uf/kQcRQaHawxcpVJfEHe9rSyR1ihsRuqy5cNTkshPnmu3OYcbPZw2wD2nVP2i+Sp3nzTCw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "347f159e72482f9acca8eb76e4dd7a48bb5af1e6aeffcb7400c9fb162c9dfe25"
    },
    {
      "path": "skills/ec-checkout-cro/SKILL.md",
      "sha256": "8b90ccbfaf7d86f83fd6ad4bc0d4b59d3b2916767bf0912ac8960e56262ec545"
    }
  ],
  "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]"
  }
}