{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "bf27ed6a67d203d48e3545def6a276f606ffe722e82341270a0fb05d4030362b",
  "signature": "yhVvgmk5V+gJjUAwOE3pgBxztmwRElrSMHJF6Ks049qhVwLmvgRt/e8SGBHSDprbGjUmlsx8Ou3BxY5u+7mnBg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:06:10.627Z",
  "slug": "sd-typography",
  "version": "0.1.0",
  "filename": "sd-typography-agent-plugin.zip",
  "bytes": 3764,
  "content_digest": "73540067878e3d101589849947ebe19cc29c62fc70ec08ccaad87355683e2321",
  "content_signature": "pWUVRCmEEULxcnhQQfqYramDx9YbgGzNL6AcPiu335r3BDJRghbtidVpFOXy5K6B/wWiPSIViDTvDRjvhJBtCQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "77c11232dc762f194c6d358fa5fc5b56f207c9ccd91d1e87e7f5398760845fd9"
    },
    {
      "path": "skills/sd-typography/SKILL.md",
      "sha256": "e9638bc28131bba74d3b4ec87846ab479b8e14ad89265eec8ce249b4d7850fe8"
    }
  ],
  "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]"
  }
}