{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "513b6f14ae597b2a4dd97aeaf453d49c6988796644bd56543b2f8ec0976c0c5f",
  "signature": "ilDdDvcjBDOSTdqJHLxtL/c82mrO0KRKObFtl6lcpsDETHZgSE0h3S5McfE8vcE2h/cIOnZWipW1WB+WMOU6BQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T02:00:58.957Z",
  "slug": "sg-landing-cro",
  "version": "0.1.0",
  "filename": "sg-landing-cro-agent-plugin.zip",
  "bytes": 3831,
  "content_digest": "deacda1ce1f525c6afa6fc587b5da6374da437151e2d6752e2a9c32a8e254913",
  "content_signature": "H6VSSVpPx7oPYMfXaXlvVtS6Di9GVSVPRJ46zOcJfvncwQtXZsAiqv0TZwo+pDJw4+Iubsaq2kz1cfTqlkuFAg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "a892f04a9ea1d9e9eabaa3b88aa26d7a096004c591c7ce94124acc8f6a14fa8a"
    },
    {
      "path": "skills/sg-landing-cro/SKILL.md",
      "sha256": "1f38f63baf6e25d827170f80eddb97c0d2db21742e79c289f3c2d073ce3c9fb7"
    }
  ],
  "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]"
  }
}