{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "4119bb7db15d29df34a4d8200509534cc522f7c2d4f29bbb9031548d517c4bff",
  "signature": "6xj9d9ql6h1visHo1mrkdkiJz4yoIYrISzCWxVt05NEP4uzejf+Zjgb08/ueCRO8a3t4bN5CamfRC7nanhhXCg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:15.691Z",
  "slug": "hubspot-sync",
  "version": "0.1.0",
  "filename": "hubspot-sync-agent-plugin.zip",
  "bytes": 3110,
  "content_digest": "3bbc71d527ce86e2a6000c80046a04f02b1e5f648f323e3d44a55d4d1684a6d3",
  "content_signature": "b4CYDMSHJ//GUzbiWrag0KnYolRawYxSy8LrnBKOYYRUdTTzQLmlgczOPp+WvnrOaXhsCUISzXSuPLNe9nx+Cg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "50175cdb00a262c0dc501314bdee5854c36fd6cbb390425fdcdd4526697693ea"
    },
    {
      "path": "skills/hubspot-sync/SKILL.md",
      "sha256": "8fdf0662c0e5ff39768dac3463f45c037eb2ee7702f2bb0b82369e6999bd51d5"
    }
  ],
  "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]"
  }
}