{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "e920aab80cd0425e109edf2e08fa6a0455686bbc59fbdc90f5c2f6fb44f94c13",
  "signature": "9R0eGNq4mX5yxpNZtjhQMmpfi23b64LavsHvDzjvglsRmppoB6CE7LgpPfVz71VsBgs/HxRlalYERxokwv0sAw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:58.124Z",
  "slug": "sg-posthog-expert",
  "version": "0.1.0",
  "filename": "sg-posthog-expert-agent-plugin.zip",
  "bytes": 3891,
  "content_digest": "fb10d81951a6bdcdf6b261924c8c009a67a7eb6ce3725c4b10116d01c8ebd955",
  "content_signature": "uNKQpEDPYsFeBrbcGMu1eiT64D0UCAkuyZVmC8oQpi+2wHiKChrMq+u0s75Z7M/xruSdNAMNp/Iey5wOYNEtBA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "35ad64f0db4aa4b68df61704c9c4712c9d491320ffb249e6af153c21133208a2"
    },
    {
      "path": "skills/sg-posthog-expert/SKILL.md",
      "sha256": "46fccbcae571551f71ac7d739bf2d07b635f18bd603cd3d3c925136ba565c99e"
    }
  ],
  "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]"
  }
}