{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "881f304b2161c02989bdfabe4decdc8c12c5e74cb390d87e6d35eb33d0dcc017",
  "signature": "DaplyI7SewBBzbbjXqQavnmlO7vlB117H08pgmZib5+Ji9QJ/X5VvK/4AH3M7bUrS8BFsRHKUKRvHHAChJjBDw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:21:54.026Z",
  "slug": "sql-optimization",
  "version": "1.0.0",
  "filename": "sql-optimization-agent-plugin.zip",
  "bytes": 3456,
  "content_digest": "ef0b4c2ae7abf7c04054788e44b8172acc04ab9031c4da64cea00a06b5668e8b",
  "content_signature": "3J6aEQqfZOcMl9KeDZZSZiaNhYzi1hU0gkrxaEkWFzEwESojvc7WuovNDzbSwjnTQ5gKLtfUxcRxuSHP98ElDw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "6d32ec97ac20907d0925910b44277264d1db410b2c2ed15786dbce091b217668"
    },
    {
      "path": "skills/sql-optimization/SKILL.md",
      "sha256": "4c02fc1512a24f0246fae8a51b7c21fca2d3ee6329af1ac0253eaf13c5db8fdb"
    }
  ],
  "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]"
  }
}