{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "7d25da31e21a3dddbeaed35840004896302f3bb7b53b7c8e8e3a58bb48733e5e",
  "signature": "WEpMQxvTHX6tA9cr5/fxVYtrbEM3EarEKGej64MlAsEJp8dRgFO45WoEb0sOAoeWlreu5n+tDJMLeFJyDpe2Cw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:08:25.340Z",
  "slug": "retail-returns-analyst",
  "version": "0.1.0",
  "filename": "retail-returns-analyst-agent-plugin.zip",
  "bytes": 3545,
  "content_digest": "15afe58b1c27138188f0d73218b0ea0458caca311c0452035820863511a14f88",
  "content_signature": "k3tjEc5eJPeJeTHMsZEDbd29YCgRmK+2YkmmQ4/uNznkF8HsnC8f0w8oCHF4X9uXqn1Yv+65zrHl4WxDZ9JsBQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "60f1a65375a83afb2d03a4fc2816e99d2390f4eab343b8ea9c10c724a8441abe"
    },
    {
      "path": "skills/retail-returns-analyst/SKILL.md",
      "sha256": "bf216a2674433535144ee7f662660d5722a4891da6fe22dd7832b6dae7c1b173"
    }
  ],
  "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]"
  }
}