{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "d29458e8b625c990ee2397d2f677bcf582d096f425029d3430d61d18e11b0542",
  "signature": "XkhVMqPMYiOzcxU3G+SKgbRcgHIUNaVwqGbyGIOfpvhSFIlRKO1e/nw4Ef2Q6gdwbm/anH5qydOoZfpfWi2kBA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:07:14.602Z",
  "slug": "forecast-cleaner",
  "version": "0.1.0",
  "filename": "forecast-cleaner-agent-plugin.zip",
  "bytes": 3442,
  "content_digest": "0cc282d808a3aef2fef9e040e02375fff45ff6dbe4ea4e4bd87d1b156bcb42c2",
  "content_signature": "ZdO7Pll6eV2m8zH/7ZCgDeZZwtATNPCIYD3CgShUhCOaawVKgu8VQ/K5kzZCRDZJhPsYc56UW5ACuk2IZcb4BQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "e8b6e69af3cf13e98444b0b3f7e7afe72f8cdcc63aff699d1d6e4e6f10d53cfa"
    },
    {
      "path": "skills/forecast-cleaner/SKILL.md",
      "sha256": "fc176eb290bb16579db8644a8771c6a900cf3c91962bb1db64ffe68d574b0095"
    }
  ],
  "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]"
  }
}