{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "054b993a2f080d22129a4187e87e86230b0e3de6956031b78742a7f824bbb152",
  "signature": "mcYF0PbYNkLWcFKcCcpT2ahq5xsy6tY7GrIfxs8ba6qp8McXXWHoNqKHYMZL5IOLwnsVpMWWO73ea5Rbum8IDw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:09:00.159Z",
  "slug": "metric-layer-architect",
  "version": "0.1.0",
  "filename": "metric-layer-architect-agent-plugin.zip",
  "bytes": 3585,
  "content_digest": "41169136aa5de117aed37ca6c6f46db298c9d74249427ed47a0c626dae6fa083",
  "content_signature": "zLXILp6BgyShXbsny7A1t8LcuOD87okEHfEpbtOJ32iv5CinJ7J9iQzjrUClAdRwneIT4J7fe+thGgZDwnpVDA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "ab41b865f586dfb7d0870478e510e652d92e39354923d9df39801ba1ed8ea143"
    },
    {
      "path": "skills/metric-layer-architect/SKILL.md",
      "sha256": "81e3e4d663ebb33e270e2541e1510275bda751135733d816a295ac1a4f37e77f"
    }
  ],
  "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]"
  }
}