{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "06430aeca8bc31360f62764adb4b447f0d93539fca4e3bf7770e3f2fb3096a54",
  "signature": "CHWOvxpD6lhw/XGfC+AFwRSsjicKY6i6LGF+e9Qf7827e9ho+LnCeM2+DzeE5Ev4jd0yQ0G1j7mlrp2vYwZkCg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:34:40.354Z",
  "slug": "gx-apollo-expert",
  "version": "0.1.0",
  "filename": "gx-apollo-expert-agent-plugin.zip",
  "bytes": 4630,
  "content_digest": "aeb9a4b302f98050ef0c9f8cb9c0efc776f7026659c2b0e979c2bf6ab36d82ef",
  "content_signature": "EFCduXO3o5TPXwNvZzeukkCeS1ST97q6IN0g/h9dFgHAQbTj/4yW1dyZ3JIVUwY5Q2I91cCP0e4bUY5Fnt43DQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "6c8fb03221b08c0dd75a9a8393bd1b109e3f6c6dcd2df569babdb162907bf184"
    },
    {
      "path": "skills/gx-apollo-expert/SKILL.md",
      "sha256": "ba3287cf4015fa279e3212588e04985fe24818763de5bbe015c30a7baac0a779"
    },
    {
      "path": "skills/gx-apollo-expert/references/examples.md",
      "sha256": "ae445e764125a18b02419711ae21640eb1cc96adcbd03a63db11985002d8664b"
    }
  ],
  "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]"
  }
}