{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "944f456b225debc4890bf190dd293a84c932cfaf3bbe2e78432577db74fc151c",
  "signature": "NwBJ3OpAdxxDvJjMNGsbbzyaix0AcghzlqKYFltPVTRRXZ8U+5algIEpW4dWmi9ElT2L9erKCdPlIF41TkufAw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:37.566Z",
  "slug": "supply-chain-security",
  "version": "1.0.0",
  "filename": "supply-chain-security-agent-plugin.zip",
  "bytes": 3472,
  "content_digest": "56bbcf366fdf9b17c9a80a2c3bb4b36404b54db8bb17fe08857200087debe8af",
  "content_signature": "vzrFSfvAzqyW1YwWjWnEA/QxSZvrtoUFuW6Slrlv3/lYAOpCWJe5prK0XYQt7sWGHHT4uQ6lh3HZg7hotHKgDw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "9989519f4c40ebb74ce61dea4f92a8608b44a7ff31b3f6b8a9784f3688c1f495"
    },
    {
      "path": "skills/supply-chain-security/SKILL.md",
      "sha256": "2ab8dd9ab3c24a74c48d2d3c87ccea1449009332b848138f0575496c1c88ea60"
    }
  ],
  "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]"
  }
}