{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "ec5ac4d069c9424dd044b6ff142854fc8c7294044926a921030c5aa7ba6dbe75",
  "signature": "+DCxeYe/8KZckjWFZlW2X0eb5Ix5rNmNyE1QLQFBUlcHB0XP/VkPGwuHhuiofNFAuNRsfBpcgCYZoNJOmBEZAg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:51:44.368Z",
  "slug": "gtm-product-launch-orchestrator",
  "version": "0.1.0",
  "filename": "gtm-product-launch-orchestrator-agent-plugin.zip",
  "bytes": 4559,
  "content_digest": "7ad15cd26306421ea539356f39ef94394e1d2ffdea49db78e54e060d36ec8977",
  "content_signature": "ei8Bi0q+Ml2TKfFgmASwZooUFmhoX6ndfXlJMtUULTGXkh2VJa+ROxXEvPcsuMbiTwwjPd26K4anfkSexmgkCg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "906e50cbade3369cf67ac041e9bed6a98387f0a8de50cdb8cbf4a481da017fcd"
    },
    {
      "path": "skills/gtm-product-launch-orchestrator/SKILL.md",
      "sha256": "b21b3838b88f477a5bd1b7c904f44068ce45e304a4b51f58e15e04ba0e4b314a"
    },
    {
      "path": "skills/gtm-product-launch-orchestrator/references/examples.md",
      "sha256": "92d79b3a33385cb09a5a2d27771170366482b9fe853b73b77466b21b7c2012d4"
    }
  ],
  "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]"
  }
}