{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "9b4cc9044ca3e5ec260414bf649904ef096804d541088399c8050b602b6b81a6",
  "signature": "PSDthbBmV3baoK7KCg/JurJ2BUnih12GnL8/+ONRPaY9pZ6NtBpPlNEnSLT0UvaGtkDtv4fim+zilmJctr8GDw==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T00:05:51.119Z",
  "slug": "ratcheting-progress",
  "version": "0.1.0",
  "filename": "ratcheting-progress-agent-plugin.zip",
  "bytes": 3210,
  "content_digest": "2064cd80549a33f595a73e3b6f8f448a78f2be5d6071beea2f5c9dd65696408d",
  "content_signature": "vwDUDKX2L6ebDcRzCdmvElQpH1yfpqsly4D6Ah+q7zrME3VfwZw4FPG3xFBc/H6uMIevjsiMtSDSvw5A/brkCQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "25ca15922a6642a2bf4876bbec3f8c4698a05cb8f68b710a9f89f0ceada7d832"
    },
    {
      "path": "skills/ratcheting-progress/SKILL.md",
      "sha256": "f5ab0ab579a8fc676181b41d77d079eed71a8c18e016634b2a9ff56731b61f94"
    }
  ],
  "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]"
  }
}