{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "a369ac3b81e0c74d957f64586cbac392320651eb0c4f7f0fb0c39b2dcd965f54",
  "signature": "tnLAvapTWgpweOJVtUhIwRFik7NVGV2zgvINXQAIua5MqBkyGpUgGFlaQb83MH5lAg7ztx4Goo3GqWp4ARmECw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:59.819Z",
  "slug": "ml-feature-store-author",
  "version": "0.1.0",
  "filename": "ml-feature-store-author-agent-plugin.zip",
  "bytes": 3543,
  "content_digest": "af95f8e2d97ee0fad913ffe7e91565663ac540ba5e6cae2bde7c1caa5479094f",
  "content_signature": "fbQx2bfeYTgdLGdby76lMGSe83d+7j4I3zA3lcd19Hi7NBsv9qBjVuIeTWbv+idlod0Xbuo3P8EZOwZ3A+nkBw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "32d72f50273ddd3d677cc2af8a12252688fd2071b17786bf92fa41a744283e91"
    },
    {
      "path": "skills/ml-feature-store-author/SKILL.md",
      "sha256": "eba3a4ae4219e2e8abea9013d252e7f0d3b64748921685ab46e9224c9c3f3925"
    }
  ],
  "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]"
  }
}