{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "16ad6319e8f0a26ce1aa41d1753f3d750de904f6985543628ae621c34fa9099e",
  "signature": "Y6xDQo+wmwXDxozJfvS/AiW5xyrvDO0qxaZNgS6ZgBKoUaReh/V9HoF/dKjN5nv+QpD3Itl4/E3y/mhhENhFBQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:08:30.096Z",
  "slug": "receipt-categorizer",
  "version": "0.1.0",
  "filename": "receipt-categorizer-agent-plugin.zip",
  "bytes": 3255,
  "content_digest": "a5588522c7bfb7815eddd86ca6e69b4590e5dcab829915f15e3f3fbfc09e809c",
  "content_signature": "Iz7M2TS3FlzLTMS3whLURA6Gd7SJGw6wWZOqmdW7Pu0B33cp4FYmgSeE18ONxnpNGHNa16Zt6ug/KPZra822AA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "2cb1ed66831f5f1715d84141e5b270e321b0a79422c7bf601df369bdf0e4b5d1"
    },
    {
      "path": "skills/receipt-categorizer/SKILL.md",
      "sha256": "f1ccf937c69c72740da583e5514af0996de901d4c52af8780e271b0f5529e5c7"
    }
  ],
  "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]"
  }
}