{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "edc25f3a940f0274d1484e6760de374df34a382bb65cbbf62f358ff24f1f6078",
  "signature": "wFQa2m5mhpqboIjagXQpBm9TaFYOIELkiqRQC9Ixm+jjdH5/LGELZ2I9NDWAOUfEzZ8WosABm4Ig0ngRcci3Aw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:22:09.406Z",
  "slug": "api-testing",
  "version": "1.0.0",
  "filename": "api-testing-agent-plugin.zip",
  "bytes": 3375,
  "content_digest": "05a4762197abb9198b796bf21724b3692c64e82cab0d500a3fe6611000c2d146",
  "content_signature": "bZ3Cn95SJy/vxfRYi2OhC1pbijMkawQjz/eVGN272ohQ4O3nvWB3yxL185Df9oVUSG369ct3248fg3TjMwlGCg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "9fbfbe417fae872f68b423be1cdffb6b9903476c12fdf28f3542cd71bcce2631"
    },
    {
      "path": "skills/api-testing/SKILL.md",
      "sha256": "d86b076f560a7c70d3e7d9ba1bc935b993ed57a6646868fb5834ccb1da9e1004"
    }
  ],
  "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]"
  }
}