{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "4c5a442f9c16eb568405ccb15a6815bbe69c5523c75592d6727323da76c3961d",
  "signature": "3hcymH3r0I8YKmtXvqk+ESB0r4/VhZFsFEsjaXk2ltetKlEQgRHiPKm3hQQdScN1nymJY+zBkfnkf6Rh5CtzCg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:23:47.177Z",
  "slug": "od-brainstorming",
  "version": "0.1.0",
  "filename": "od-brainstorming-agent-plugin.zip",
  "bytes": 4296,
  "content_digest": "acce36e105aaa87a6dd4cae70a3692b26e451f3f4200eb9aa83e032bed34ba9e",
  "content_signature": "KuO95eVj+N52J9acxzMUncbuN+OKwHUp6XCupApS652XKw4tkRQ1phUloyBu43CQZ2kypOXZW7+dnRBPeDkpAw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "314f5d660f6b8d6c6ece5c355726c36e6a637be31d7ca3e8a7c097d26d5ec3a6"
    },
    {
      "path": "skills/od-brainstorming/SKILL.md",
      "sha256": "748fb6b42da44b6b7e7a4c8b1d90b1b378231fc24e3208b529df1e51d1718cd7"
    },
    {
      "path": "skills/od-brainstorming/references/examples.md",
      "sha256": "8ef7b099343371926322c0c04e00e6e0e3e252df2e988fd521c9b06af0d7cbb7"
    }
  ],
  "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]"
  }
}