{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "16938d47b9706bcc55b071e02eeac474662327b639844ab6d6722fb3466b3221",
  "signature": "vEBHdH7gaU3m241sGy5UtVGK7qhxWNctiSbWTpqneA6I+SJfykM1jb0m/qaE2ro1hOnyecEOtwAHEaKqnSU7Bg==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-23T23:29:58.551Z",
  "slug": "msa-redliner",
  "version": "0.1.0",
  "filename": "msa-redliner-agent-plugin.zip",
  "bytes": 3378,
  "content_digest": "1ea3fee3b0fb275a0211851515bddfca1b913f6d6bf1b9a6fbcc4d6aece25b55",
  "content_signature": "jTo0a3+cMah7+EKdsjoUndSfyqTScDoblDmDbFmQwmf0p2rUa+s8NeltsCdfv0wpUPiqghnv6yaNB12OFxHVDA==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "cc4ca713859e9f71b8ab486d86ea4ce49ce2ee0167040ef72c8ea2c94b076ff8"
    },
    {
      "path": "skills/msa-redliner/SKILL.md",
      "sha256": "7bdfaba99351a8c2f1e521af3fe7a079b84502cdda82ffc9c014e7cfc03f92aa"
    }
  ],
  "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]"
  }
}