{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "b104307889e17edc3b9ea35c4ebaf3411628868ae59555489d9b40629cd49023",
  "signature": "iu6L+MO+z4F4CM4J/KwGp7iAO9YPWqk1lCWqrs9sWFk+dcHTYLy4f5CUP7AIBuV91jngdPOE7IIOjAO57w0lBw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:51:05.579Z",
  "slug": "food-cost-analyst",
  "version": "0.1.0",
  "filename": "food-cost-analyst-agent-plugin.zip",
  "bytes": 3449,
  "content_digest": "901c8150b8566fa001ee529eba3b8f6c99a8b855de60366bf1753af8f0ce9138",
  "content_signature": "iqZ5RgMFl4lwz6VGHxKFszLS/Z5zHEUOwUJ0wVTE2s/kWGj/FVyLWUeiH5l9XuDhTv/JOfFnpJ9mACn7nd2VDg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "b96e60c19f82cef98b0618cc0d58cc823cb5bcea98df46cc638569227bbf93d6"
    },
    {
      "path": "skills/food-cost-analyst/SKILL.md",
      "sha256": "08cca6dc41af67cfec4a4cca78e8d74380306b758a001592284b2f2a2d35a76d"
    }
  ],
  "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]"
  }
}