{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "566f895cb74ad6c6e32e8ebab3e0c346127e1d0db02108c2175a2f22012c90ec",
  "signature": "IOQwRYLdjSF4UtfalWzKPx2HFSIFKTIkqb5EkTuLDpN+ORa2ssdsbPrDmF9itzxfHNOkThnvTlRp4FtVh0vbCg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:29:18.539Z",
  "slug": "event-tracking-planner",
  "version": "0.1.0",
  "filename": "event-tracking-planner-agent-plugin.zip",
  "bytes": 3525,
  "content_digest": "967baf0236c2ba09b50d617afe59e014ae98359dc766c02c00d6e1896edc27d3",
  "content_signature": "5lR1J1uDyJ6szT/lr9cGYH1zwCTKB2oE77HJDzZUCEfuiTlJO6LJ/guMvFbG3uGWaV39GollhGDabhPcO8eJDw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "478be562834fd84a3c012758f266fe4077f98068eb356d82b667689df4b17a3a"
    },
    {
      "path": "skills/event-tracking-planner/SKILL.md",
      "sha256": "6789109475035656b43f9ce915a3f239a3acb4a1ddb6badfc3564a9b073cab95"
    }
  ],
  "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]"
  }
}