{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "76190bbbf01671ed87af084b8c976f780f367b9f717abbceb95888411d554a21",
  "signature": "7GzP6sOoX3aN4eqQ+iLI9szAJQhQdPfMk4rxhK/vojSbD4pktjnqVmoTM1Bo4KWMMfScQSd1XRQ/qAhoo7xvCA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:24:19.626Z",
  "slug": "social-post",
  "version": "1.0.0",
  "filename": "social-post-agent-plugin.zip",
  "bytes": 3357,
  "content_digest": "98c86b5c435bbd153067e264aa2fa456eb12c2520bd87db203839de2bc58735c",
  "content_signature": "OzkwdM6yb+RAerCnqBdhmpDqbN4pImP3oWAg2lnO+0JCb0ICsvw+T890Gdi6yxYrADkpcXcPZ/kniV4vZPvrAA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "8a26a9d72a71421c977a03386b73c00766641fcc5d77c915fbc13d0fae2a1eb9"
    },
    {
      "path": "skills/social-post/SKILL.md",
      "sha256": "50b61a93029ce8cd332bca1648974bdd308dc5bc4b1c4ccc71058cfb30db096d"
    }
  ],
  "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]"
  }
}