{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "0623bc32d4dc1afabaee7afe1303a7cd7e16bafb10eb691c46ce34d8b0479fb9",
  "signature": "MprHzRLTxfuKFdKHA3J6cVv4axj4Khd5muAGlkJEGN0I1+CGuBA+xZSpMvwckZVUm9OKxbnCqhMaDDcDfPAGDQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:53:42.334Z",
  "slug": "llm-eval-harness",
  "version": "0.1.0",
  "filename": "llm-eval-harness-agent-plugin.zip",
  "bytes": 3230,
  "content_digest": "d85dc343af1db69cd8c4355c2c9eb86094bf03009b4ff9cd819796650092cac8",
  "content_signature": "8Q1trXd0X1Md8C6w79V8hF6ulMxUzE7uxQJJkGFgh6LDnNn1hIWk6OyvRXC2GqziwVncyEFGrk3r6HCqhonFCQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "712d36652e41d1d1d30266d23054ef9143a6fbda816f8882ac55a40fd9973ccf"
    },
    {
      "path": "skills/llm-eval-harness/SKILL.md",
      "sha256": "cc982fbe1a4c930e8fc13ff5eedd1478f4ac0c92f6e8085df19b637d66ad747e"
    }
  ],
  "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]"
  }
}