{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "511eb0d2e760c368b1b50bdaa798d4d3ec6497261a4a3b3a54c72f54d5a0b888",
  "signature": "JNxYRi1hw4RAvGu849uf+dVDMHHyLwiETY0xZzkrr3uvNGM+xolOIMAuD47mYW40AOIEhMOwGxDvXTQlvBaACg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:53:42.784Z",
  "slug": "3pl-scorecard",
  "version": "0.1.0",
  "filename": "3pl-scorecard-agent-plugin.zip",
  "bytes": 3360,
  "content_digest": "81bbb878bc6ad825cb587023935d3f5b525b9d47ae7a174a03d156eda3ba295d",
  "content_signature": "dLSZ6F5r6OSTkgpj6ev4URsMLk9t7iTnzcqWQYyjiBQCBzEfxewc8thWZnW3qeeXt84wUuMzR8w/67KEpA/qDg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "269cc2ffc7eea79e2d3ddf874cd553cb1c1c28e02ac5346d1cd9d8575eb3f9d1"
    },
    {
      "path": "skills/3pl-scorecard/SKILL.md",
      "sha256": "311d29cdc95b8ab77a26888c75b92ed75b96328088ccec5bbe063ab3c75d6cb0"
    }
  ],
  "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]"
  }
}