{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "4d35cbfce5316e9f0cb994fd849ca90bd9a79f6a63d8770ca73d325e5e510c81",
  "signature": "iHWR3VKAG40Vfbgvy8+On43iYCfJ+W9tO5H1efegCs4AAyBSfYB516htmqB02BKZ1hSTzjmx8VF0iGULI20QDQ==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:24:34.779Z",
  "slug": "delivery-platform-optimizer",
  "version": "0.1.0",
  "filename": "delivery-platform-optimizer-agent-plugin.zip",
  "bytes": 3637,
  "content_digest": "dce8e1955b2a331136eac4aba0234a1a3a05c814c5db29d1bf67fcc369e90906",
  "content_signature": "XlWkBIwRwaBcH74lZCI+LPrr7LICZXizI3JGm40ubKCNsUzpSv/zJ23MiuAKledPwcNlR61UHUfj3+F4JnB7Cw==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "9466155b28920cef5c337028c5405734c822d536d73eb9065c1620813e46c639"
    },
    {
      "path": "skills/delivery-platform-optimizer/SKILL.md",
      "sha256": "516cf7f94a1afe3df8402581dec9d6341433850ee700e2f5b1c3900867082c70"
    }
  ],
  "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]"
  }
}