{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "e59248ffb000b879f17999f030a6afac25bc974923cc166ef85ee06b111c4c86",
  "signature": "nDJ1FSlHk1KfkOnzdq+ysg5U1i8r5IlRbw9Z8NyZ5/iA55c6EC3wiQ+93SnmrcbrPzREXd+WlSaVS75/j/lhCQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:37.305Z",
  "slug": "doc-skill-xlsx",
  "version": "0.1.0",
  "filename": "doc-skill-xlsx-agent-plugin.zip",
  "bytes": 4138,
  "content_digest": "276cd29683e87c8208e2cfa3bd435b745fdd43d14862677e48e83ef323ffa1a5",
  "content_signature": "ISqrT+rxtcmpxOKxrsvIhKYARpnNTgP8y33rM2rIWRuUTcwOEc4wkwMPfC9iRnE++gZ7ztd04VBTdZXS/zj7Bg==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "f6d87ce685d765a4abac57bfc788e358a6269e0fe03f8d33f4d09ca5a06b6092"
    },
    {
      "path": "skills/doc-skill-xlsx/SKILL.md",
      "sha256": "844ec341e7e2a1e1173f76d61a7870c1d0551b4176a17d3e8c7823897e46e586"
    },
    {
      "path": "skills/doc-skill-xlsx/references/examples.md",
      "sha256": "3cfa3b7543f304f9252c447d654469b5ea7d4419a39bf41a6c0bf2832e967ec8"
    }
  ],
  "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]"
  }
}