{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "dcfc3ab0258e963680831f725fe224b3eca1e333e03a0d21d7460e65ec0bea0a",
  "signature": "gcRrekyjGyFezvuU6UG9ualfT859GtG8WovogZWbeyqiRH807QkOk0cGH1HXy3uIcHUXM5VC8BZEtt7oNPVSDw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:30.542Z",
  "slug": "token-cost-profiler",
  "version": "0.1.0",
  "filename": "token-cost-profiler-agent-plugin.zip",
  "bytes": 3234,
  "content_digest": "72e95c83d88efde85a629d73639cd3b190425ba52b72da886379d653aa4bf7cc",
  "content_signature": "DtH06hCNNBoLIVP9KkP5VsV+3gK1FrTogaIDJ5OTtebnz73l1xwM5HpbtbXa/HqQdrGkFHaWbFUXP9a8FoiFDw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "4b161a9bc1b8afeeb595e2dbb14e11fab35d900602c6bedc0e87fe9a375b7da1"
    },
    {
      "path": "skills/token-cost-profiler/SKILL.md",
      "sha256": "62606f3e65ed784d416dedba9b3f9c80ebe785c2b8392ccbd0961447971476d1"
    }
  ],
  "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]"
  }
}