{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "569c0dbe447f8341c5685f26a4446f104df2ac8a32f8a3afdac8460e6a0b78be",
  "signature": "xBvJAFK6tL2AE/qRBWaL7dECUB3mEzAJ/KfbTmbgR9JybV+U7f99wGA54TOIYDbFK5gVT2MzpL+XY+V7hJVcCw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:08:04.643Z",
  "slug": "n8n-workflow-builder",
  "version": "0.1.0",
  "filename": "n8n-workflow-builder-agent-plugin.zip",
  "bytes": 3343,
  "content_digest": "2017912ad4506c69e4b5a58321eeba6466852a687990d9f381053c6d7b9f0bc9",
  "content_signature": "DgqQdX8gLprBW7wV75l0J1/aO1o3AbvJwe2G6/y1WUlL/+QEd1x71PPd/jRaqOl+89D6s0D31Q0vPfSGTM+cBg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "1f16a293315806b88bccd942efe53695e3f4a2c8d24886a4cbce85fb5f883451"
    },
    {
      "path": "skills/n8n-workflow-builder/SKILL.md",
      "sha256": "f85b3cbb0ba7ff918eff45b6c406a2f68f5d3a44195cf8a4241d62453467453d"
    }
  ],
  "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]"
  }
}