{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "12dae8b9cf0eec443219b4902bd107a42d3827deff7f9a1ced36e2a4b7610bee",
  "signature": "JrDAqyESCoQEx99pRm4jK39NKYtVKygCZnPs7VtVMGmuQTr1cLIIV5nJT/mPqR5dLjAhic0nWbPkBkQpObPcBg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-10-08T16:25:45.515Z",
  "slug": "question-bank-author",
  "version": "0.1.0",
  "filename": "question-bank-author-agent-plugin.zip",
  "bytes": 3482,
  "content_digest": "3dea7e56e945d2a34d629246bca5fc4b1e4db53ba01ebc9610278c1dd3c04e7f",
  "content_signature": "sodtPPTIpVHJjsPVz55WGCi5uKPPmj9ZpvbhqXetD1ymJ1rOR8fwHmQKt1AaI4IO8T2lC/fdCJVuou2hkTsmBg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "b7a449dcbc4b1b089f7cc2b824c4c77d301d33ce2402b572e4d612f908f03891"
    },
    {
      "path": "skills/question-bank-author/SKILL.md",
      "sha256": "09adbac312407d2f506fe0c3409abba387da14fe3cf6d59509e7d6614bf3dd5c"
    }
  ],
  "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]"
  }
}