{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "2620746977cba72fc878685e80cb8b0205f585121b4123de235fcfa415839de9",
  "signature": "u2U26/eElE7sx5MGQihsXu8TPEF8wbsNuAhaKSek4ywUXLa+MMbHTsngYwGjZnNkfAuR1Bj4NzYZAfCi/YM+Dg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:41:45.775Z",
  "slug": "authentication-authorization",
  "version": "1.0.0",
  "filename": "authentication-authorization-agent-plugin.zip",
  "bytes": 3578,
  "content_digest": "bef133c5cb502cc49b36cdf24b264756ae366cac53f11462c8712f63b746e286",
  "content_signature": "Ie/OnNT9SRYyGT0a5+b1CaEqYSnER2nJbVvWeCBKb3azdBjSwNGMtogtihnv7BkNs6ONxJoRkKQD1GPFN7QcBA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "fd1fe40873d01647213a2921a8b5f546e33cecf24c12d870c413bd52cafc3eb1"
    },
    {
      "path": "skills/authentication-authorization/SKILL.md",
      "sha256": "f8ce4307246ff5738d1155f2b598134e7789c9f272e8770ef9c9783369a80d7f"
    }
  ],
  "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]"
  }
}