{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "7275b087355784aa7d727790b944dffd4aba96790fb421a481da5e156d6b9240",
  "signature": "m81eymOtEbHu22cg2IrPtsTeEG+PkXhZsN9OiNRPzCTB2UyfGkD5tZO5hrf269RzTvXqmnhIsk6acrwVvCKzDA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:22:07.880Z",
  "slug": "postgres-patterns",
  "version": "0.1.0",
  "filename": "postgres-patterns-agent-plugin.zip",
  "bytes": 3299,
  "content_digest": "a5ab8d78cd463c8b46a7178e685fb4c520887f3afd29542f20814ec2c2ba6a67",
  "content_signature": "dp4kPDCFjyv3vApyNz2KMkQyPbswATQYrY0S6gMJSEadlNiyU7nXgw03pHxYwtBdZO8FiWigy3DAtSQdDRyyCw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "07f9eac216671e48e82471a58df21a42e7afa57db85b78cebfa2d08839a29890"
    },
    {
      "path": "skills/postgres-patterns/SKILL.md",
      "sha256": "df64fd1ed27a015382ff3d27ceeb427148d5e5cda85533a46e5b3191a71c8eb1"
    }
  ],
  "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]"
  }
}