{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "421ef95439bb7d0a81057a4e158b05c709bbb099410cefe578e88152c1431b42",
  "signature": "DuSfNOcyGRdM+ObEyEj5mndh7LCWc9xQPJQiul2cLcggdXoc6hrElCxVafNEKSvj0r5MqOs9H71MtpXiwV7GBQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:37:58.830Z",
  "slug": "guardrail-tax-compliance",
  "version": "0.1.0",
  "filename": "guardrail-tax-compliance-agent-plugin.zip",
  "bytes": 3519,
  "content_digest": "499aaa88a11b9531dc2fe1c0262f1c0c7a7a3f6c94feaeec5e864cd8e4e3bee7",
  "content_signature": "jAzdYLjEhgc2jfQanJzCXCjmHJxtyWjYlJR4GhPG2xbJ/SFlke+FMIkQSrTMMGSE0ycNA/DW8yh4m2bbFWF+BA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "1883cc71fd0e7dddf7263329cec7135f9c6492b6ac2535d48b120d3957819e3e"
    },
    {
      "path": "skills/guardrail-tax-compliance/SKILL.md",
      "sha256": "b4ed55be408eca94c9b277dd55e7727662fe9d45c0411e6af05cb20fe0a4fb8a"
    }
  ],
  "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]"
  }
}