{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "f0bcd7a9887845b80d599a87e7bea53898b9b4525e80ea41706f49a984e61458",
  "signature": "hu5ymmU82XnUbDKYJZ/JPfn3OFHx8TF6XcjUXMFc068DSTPvWP8SsrwEkpFGs2e8U0STcKGgiV8nQD1beGSDCQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:45:38.160Z",
  "slug": "tailwind-css-mastery",
  "version": "1.0.0",
  "filename": "tailwind-css-mastery-agent-plugin.zip",
  "bytes": 3579,
  "content_digest": "e16f77ba0d1313307718d03cf03d666bfda15021ae8e67bdc8b3289a12cdf1f5",
  "content_signature": "Zcy+R+Up0s9txCJ7xPkMOKNbfgFwjlcCJGYaWg0aIOr8x9SrsHG5E8GqcQbJOBbZYghoOHHCCtzXuXp1HgoVCQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "504fc02ef27e9e42893b21569d476ad87014743d977a863acb8f63de3b4053e3"
    },
    {
      "path": "skills/tailwind-css-mastery/SKILL.md",
      "sha256": "a03e4a781f4ea0cd6a264489ba46a959f04952d022f1dd7cbbd5c20cdd498ad6"
    }
  ],
  "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]"
  }
}