{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "c4763172a89d72df23ad1dfa004c4a7719764ee2c3e3f9fcde2263ccfe63c343",
  "signature": "tFImYrjIpe4z2zKSUS8VYDuKA5n7B7Z4ldFxPJLlgGWS5ND850HW5XlhVx9NcwZr36KAvWdHhUIT5gyQNiKtAg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:28:19.585Z",
  "slug": "verifying-evidence",
  "version": "0.1.0",
  "filename": "verifying-evidence-agent-plugin.zip",
  "bytes": 3277,
  "content_digest": "df1fe28b95b25c8e7adbdc9bbc5ec372a1382d43c6e4952541ad4d3191dff906",
  "content_signature": "FRSy1V3iH9Jd/iYYBb0XEs0eiyCZ7N/oddrGn693v1rEIa9e0WWsPG09kOrMpoAIfStbcgUpLenES4Jo2KZwBQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "91df4457a2b1038dd65cbb5f57f0443a0ae81402bdeae189be5321b5dcf2629b"
    },
    {
      "path": "skills/verifying-evidence/SKILL.md",
      "sha256": "7d9c936d56aad1d61935d514168ba28eaf7f1beaa61e3928cc6bea9df4666d37"
    }
  ],
  "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]"
  }
}