{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "5699bc042a1912947c3554cbb97a4589f9c9b8a0337eed0546e67029c79f7255",
  "signature": "2rfeCN3QXob7hB+3CYLmi0AynwBralNGuDc68O/IR0ARSgM6E1HzLBKM5QtNd7d7zOz6M/d77GGm4NWOIIFuCg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:58.067Z",
  "slug": "vector-index-tuner",
  "version": "0.1.0",
  "filename": "vector-index-tuner-agent-plugin.zip",
  "bytes": 3207,
  "content_digest": "038f14852a18b6c857b70e1531f9038fa37f43f4f0a5d667bca10803de75fad2",
  "content_signature": "WDmeWEabVsv3LWf+ihoD8cp6XjLqfefuu20+D10bjPrai1eBUqaPPPU24R5NVivJxKmlIVWCBXDcIrdk/WlSBw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "58bfe917544de96ea0bac26dc8bdbeffc8f0758b95502de22a0308042cfe0f13"
    },
    {
      "path": "skills/vector-index-tuner/SKILL.md",
      "sha256": "21d1d873cf230a920fd87e5696be2c4ef5c5f626b736ede95325d4a7152eea43"
    }
  ],
  "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]"
  }
}