{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "c30def75f1d0611b49979e614308b9a7d42928792da74c7fb4cc9d066234755a",
  "signature": "BBBDyrHFJFYIBZbvdWKVcpoKkvT7vXarzppwoFbG9sI69/exjhekjtwKQa6com2Z8NMUsb1BTydqPuDFpR6iDg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:43:09.319Z",
  "slug": "data-warehousing",
  "version": "1.0.0",
  "filename": "data-warehousing-agent-plugin.zip",
  "bytes": 3424,
  "content_digest": "8af2a1f36264d6a51776d9ae8f96e288328b4ff90ef74ea48b7a00c553b94ec4",
  "content_signature": "hpmKebBivG6goAIicoWmEZmMbbsydmKy0vogtTRv3qkCnUOCJm96vv7MbZGsCfEdNkxZF4ZHQL43UmhLA7gQAQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "ba1c8c4aea96522ada5bff6e949114e209637812bfa1eb6e0fda8c38113ea939"
    },
    {
      "path": "skills/data-warehousing/SKILL.md",
      "sha256": "1016fc3e8aeffce5bd8575e5fae7b86eeaded5d90aa6654e709002e72f5ad122"
    }
  ],
  "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]"
  }
}