{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "5cf7b269eb53e36e0731d3cce97153d617ae9d416f73c561219a7c88892b1f5b",
  "signature": "Y/9hORTsykTPMHeALA29VVw1Cx1Lb4JW7Yu++RHWMyTja7NYqlm3c+AGGdx1sW4vF9Vk0+4a5W87PZZwDthuBg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:10:56.064Z",
  "slug": "guardrail-environmental-compliance",
  "version": "0.1.0",
  "filename": "guardrail-environmental-compliance-agent-plugin.zip",
  "bytes": 3648,
  "content_digest": "7bdc7f067eee13920115f60afd3b796472eaba8fb6c8c72b4fded15916e3c7b6",
  "content_signature": "L5Q4oOawsX6pxLckRsya8hR32fCkkQwjqffL3qHzFjbbTqMWyvU/tZW/QHcjwI1VmZMQ3Q8Q/0XdeIyez39ODw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "26fb31676c83f5ef9775d4052b83e18a9ef94ed9aecd78a9374ec8c8bea74e9f"
    },
    {
      "path": "skills/guardrail-environmental-compliance/SKILL.md",
      "sha256": "75db4ebb99c75c391d1dc1f7e4d2aa3acf8da18c16a4fb213155dd5b95295ad9"
    }
  ],
  "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]"
  }
}