{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "518cfcc52ae6131f689b267cdd1307b5eeef93edd49850703d016e7fe3fd5d4f",
  "signature": "t28wslkV9RqvTgfuIVE4BVUEV6Byqhwp/GwQEw+raJMBYA3Vj4CYltyhcD4+sNOgolSwelPhQQNDwnjkDKfQBQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:48:34.308Z",
  "slug": "accessibility-testing",
  "version": "1.0.0",
  "filename": "accessibility-testing-agent-plugin.zip",
  "bytes": 3497,
  "content_digest": "104880eea4c1ebdda6a43da1ce32e8cf32fc58997212e7def3e16f1098f5bebe",
  "content_signature": "5JJbkWh7ZdSrW7A6UH5sUhxhysRXBKghxNWopYeVytev5kGVwJdVtL9rXa5leE6YVvDdw0ABCV/oQtrm+8ibBA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "6a0a21701e644c74f59b813e54eca6f60cfa7aed52fe7501a9e0823e2464a117"
    },
    {
      "path": "skills/accessibility-testing/SKILL.md",
      "sha256": "00ccf866502767da2b15cc838e72b2cdd293c5a5fb4de488691f051b9cdfcf91"
    }
  ],
  "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]"
  }
}