{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "d9f8c2fd66b2a6dddbe706b380f28c289c20ed79d9cc2e336a9071c272b93d5e",
  "signature": "MwPbxMZSqMkoL4/El3OCUCzoJOIx31o5AwlJhF7m60ptpf83pf0Y/IELMm49+k8F4y7jbLPjovng9OO9tEt9BQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:32:47.936Z",
  "slug": "storytelling-advisor",
  "version": "1.0.0",
  "filename": "storytelling-advisor-agent-plugin.zip",
  "bytes": 3527,
  "content_digest": "9f553e34b9b5e183fd427cf72f756f513de1f07611314bf242aa86b806307dab",
  "content_signature": "GM6l4EGQBNe8q5VstnhVgzCEA7rqPtB+jM3gqsSP5GqqJQpK5A4K8FrEDtBhtHkQ9vRJrBNJql0GBd/bd3JyAw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "42ecc8a6630314213cacb054dcda096d96b5c7c622cbd26e588d3d37a8189552"
    },
    {
      "path": "skills/storytelling-advisor/SKILL.md",
      "sha256": "2a56768c25cca1f863375fcf811b819bdbe09e19e26999aaef60e44a17d66dd8"
    }
  ],
  "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]"
  }
}