{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "bac1f4a8a75fdbd93f3f94851bcfa7fb25fcf62f9022f20c41f6e5d459fa8ddd",
  "signature": "jDmhSxst491r88K9lNJOTGuC6yx+mMg0s4khiaLZRPY1pioKk40jtec7KNUPCpaH4rXYVzxUs4stM+G7r7MeDA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:58:43.849Z",
  "slug": "od-frontend-design",
  "version": "0.1.0",
  "filename": "od-frontend-design-agent-plugin.zip",
  "bytes": 4316,
  "content_digest": "3a067f14663aadffb573775d1d384e584ba1e550f1a820fb17ab11bb2074a915",
  "content_signature": "WTWLojxkTEY/zsCvMHx89T2rRCgIdii4IvWUFQRl1eMQPjQqRNxLDKywscF/eFOv9jusvcMewSsVg6hnuj8nAQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "fb1dd638a6e7a0c80a69a10012b4d22dd239d178ff0e18b886d8d6b405a359f4"
    },
    {
      "path": "skills/od-frontend-design/SKILL.md",
      "sha256": "ae25b5d822de788f09d5e0558e642632c273a53d8114e8c96806dce0005abcfd"
    },
    {
      "path": "skills/od-frontend-design/references/examples.md",
      "sha256": "f68794fb99e844335cbd73fd1b2f696ec8ccb22153944e078628e53b76282bba"
    }
  ],
  "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]"
  }
}