{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "1c6f8b6611a677ecd1c024788bc13edd8cfd97529b3d7b9cd542277900cc29de",
  "signature": "jOwSXuJQq6hyVgK0E10RxdO+cz1eiR/05MTJyub0XPT/JuYEZUPNImQKMpv/mQvnIIPUlPPSVflAc1MzzOwhCw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T02:02:02.700Z",
  "slug": "xlsx-financial-model",
  "version": "0.1.0",
  "filename": "xlsx-financial-model-agent-plugin.zip",
  "bytes": 3296,
  "content_digest": "0c8c4f050dbb79938782d18244e2a15561bd6aa439afc34f7211857cee1eebc0",
  "content_signature": "8tame/gIqBnCGqM9Irjj5LNv7RvKg4a/mWFkcZv3qdKzNT7VPMn2kYpzUQsJst0ms0UANLoG8bnjg+UzH9r4Bw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "76cdfcfb1e21f5fda015a1487d814002af34a3f6726f1830a033cb227b3b8d63"
    },
    {
      "path": "skills/xlsx-financial-model/SKILL.md",
      "sha256": "e8a0270b3b3424bb67517cef8ced3e45a4fa45bf6338f621139478c868906477"
    }
  ],
  "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]"
  }
}