{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "865cbda969006ea51b32cbfd781831436e135f08c6d048b73646653ae2aa676b",
  "signature": "h2LpFCldNT0YyLv4Bt9+9UCBBONxWe0dLxkrpair4COhdtIb7+3KA3OOXyp3YXaWCN77Gk20cbzhptbROEfzDA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:06:20.658Z",
  "slug": "pl-email-lifecycle",
  "version": "1.0.0",
  "filename": "pl-email-lifecycle-agent-plugin.zip",
  "bytes": 4205,
  "content_digest": "7d5d6fdd6494f296b29728b959ddf215c263f443d93b24943ec6b439e9809af2",
  "content_signature": "Sq3j99lfDi/l7MRlKKzrJURDUKjakx0wKdXmU3FnBb63cQzSuAG2r/qhqzqEfYPscLNuPtNUY/Yj3S577N1XBQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "0463b28b18e3367c124e2a00953a24550049080719e618e9ffd46570223fb278"
    },
    {
      "path": "skills/pl-email-lifecycle/SKILL.md",
      "sha256": "e37630479e2d8da945f324fa291aef39dcd508fe1dcaa3fc722a0cbff38359b7"
    },
    {
      "path": "skills/pl-email-lifecycle/references/examples.md",
      "sha256": "9726c5def208c03bfa335e734c3c096fb0685ce89fd2097c9d2f4a4e19890e48"
    }
  ],
  "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]"
  }
}