{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "bf1e5afecf8e4dabfc0d590002441907e267e0975266b5f012ce899a012e73a6",
  "signature": "Hja40y2Nw6I5xlGi/EKZLdmCOhHn+3U9Z6fY4R2IPEtN/aCNxfVcZOuU2+mQaXECmyhwMG+1IQB3F1rJVm8OAg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:38:03.872Z",
  "slug": "guardrail-logistics-dangerous-goods",
  "version": "0.1.0",
  "filename": "guardrail-logistics-dangerous-goods-agent-plugin.zip",
  "bytes": 3659,
  "content_digest": "4d8ef68d1ba3ef9162d14c779813f829989d952a499e2d2d6e7ba6bc3f5c8153",
  "content_signature": "OO0FEp3vtx2Yw2UsQiQB3Pl2ZwppXmwxTi8/lkfG7mvEYZ8l63UJ0fmJcKcNeFI7q5pBxNz3smDaZatMtjPdBA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "2cd42f76aeb6cadfaff5ef2cc4004c2b53d9f15f0b17f7f19c7de746bdc42829"
    },
    {
      "path": "skills/guardrail-logistics-dangerous-goods/SKILL.md",
      "sha256": "3568ede384ae326beccf7ebf639846d12127ce5a9df25b693decc009a425133f"
    }
  ],
  "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]"
  }
}