{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "50455b6aba8189a10d387b02a3b8c5cafc03e9f961f5cc25065db29595908157",
  "signature": "l9ImZ8HTDEtexKzYV9BaJlYAwZ6RHLd8EJtKkcUEGxr4MRdwXAlkY2cy7MAxwo1m+lh5BnNdJAyUS93mfT58BA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:58.999Z",
  "slug": "trend-radar",
  "version": "0.1.0",
  "filename": "trend-radar-agent-plugin.zip",
  "bytes": 3367,
  "content_digest": "42bd6e41bd1b283d1d672b2286bfe2873b9619ed25349e023c1a3d62196dea0b",
  "content_signature": "iUkIrJA00foAELTUHHef3cDAj3fSfDzsybq6uhMFuDJWUQqqb0U+3OiNjBYloEbdXn3B0pMHwHuRo6CTMw2fAQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "f97202c8af831d92d02656b2bb5ac625983973ed1b0a1169975561f9122c56cd"
    },
    {
      "path": "skills/trend-radar/SKILL.md",
      "sha256": "1172aeb5cf0a3a4a01c9e6c294f8b8d8a879a8cf469fab98f1b013a3f545f7b7"
    }
  ],
  "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]"
  }
}