{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "67db487def476fa44b7409e5420ab9903e4c8b4f4b9dd68f607bb7fabb695f99",
  "signature": "95NxcMZa4kqIJRVfDdlTDvcyopESa3fqyEwEzX1OFjM4TPh+D/SQyjML2TT1rW2wNIPUQR/p9y+NWpiFCV5QAQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:15.263Z",
  "slug": "migration-helper",
  "version": "1.0.0",
  "filename": "migration-helper-agent-plugin.zip",
  "bytes": 5094,
  "content_digest": "95ddc93f193c578c24a3ef82095d4e6f1ed672fe01f87f2938677a795f78d945",
  "content_signature": "3GuRYMa2j2CGBaEs0GQmkQSjxJCWyfKayTG/v8GSfd4FlGUkHygm3JSqNIRsCLpAuZleEf+rkP4K5NflSNWHDw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "648be3186f266dccccc7781accacdb0b065cbb83eeeb6002ef840ceba46bdc2f"
    },
    {
      "path": "skills/migration-helper/SKILL.md",
      "sha256": "2ea7b1ba2b77e3c893ab7249145eaf49b3aac391a336764386e324b4d5e51079"
    },
    {
      "path": "skills/migration-helper/references/examples.md",
      "sha256": "deb3430741d69b0169fbc6306d33683e7e88bdf5bbe6e7258756130b92b4407b"
    }
  ],
  "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]"
  }
}