{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "c62b0bf45a1515ab5614b59362ce87aaaf2e3c300329a92e42fa3273affb3f1c",
  "signature": "IsMzu2MeqQ9p0yUe/A0Xv9wmddniINkWscWR4hIDv2pLe5FATm+EfXfLgQClPI6EnCanjUiIcA1bB2pO0SFfAQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T02:01:51.884Z",
  "slug": "guardrail-accessible-design",
  "version": "0.1.0",
  "filename": "guardrail-accessible-design-agent-plugin.zip",
  "bytes": 3522,
  "content_digest": "fd6d1518640f17edf4aab061351ad6e7fdb03aceba26a17dab0a784b705a4b35",
  "content_signature": "wweuw0yiHl40VIdhJ+xkh66vKHi89MtZva497jAwvFU433zP2BsoF0QADkLDpLnkXWAWiW2zuvYy5ppYPlPEBA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "82b94428fb6ec3ce049fa6637f30616c2990cc2aad50b51c533a86cdd80e625b"
    },
    {
      "path": "skills/guardrail-accessible-design/SKILL.md",
      "sha256": "020c143083cfd5e48e2429b988af3331a1c064fa479a57733cbaab1a8e4a30b6"
    }
  ],
  "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]"
  }
}