{
  "spec": "sak-package-signature/v1",
  "algorithm": "ed25519",
  "sha256": "4a1bfc09397597fab8b5552d0bbb4411776baca7af76c2bb9273c7a54fd3cd1a",
  "signature": "cE3/MH8CElSSd8KXiUdsK8aCVj2pJPrtte1kXmyXik3SZQQD6qQCup7WkTSX9EAlddjwPWAOD6g4Ic/txTR6BA==",
  "signing_key_id": "0aff169ecb84607d",
  "signed_at": "2026-08-24T01:07:58.069Z",
  "slug": "cs-cx-strategy",
  "version": "0.1.0",
  "filename": "cs-cx-strategy-agent-plugin.zip",
  "bytes": 3854,
  "content_digest": "22be45332c13e5871618c7395e201734a035a3d46180c96b2a054b376c000e41",
  "content_signature": "ySR3ebVLwv5RZBxlmPQPbRU4pibMV43GcEgglYHANv3HyzVQv/TCeucmbxmSUv7DzeLfcmUh1DRqrP3kaBNHAQ==",
  "files": [
    {
      "path": "mcp.json",
      "sha256": "a4ec0149cccb566b6c4b6d8413290229819ff2adcfa9eb5387c3f91d31103a57"
    },
    {
      "path": "plugin.json",
      "sha256": "b0bd5f2a7f92c4b329373771c0859afddb2426a82115fdf125953a566fb553e5"
    },
    {
      "path": "skills/cs-cx-strategy/SKILL.md",
      "sha256": "d863dcb3f5fcecdbd51224fae4ac1252a8c3926454b55c9f62c273f56e6543f5"
    }
  ],
  "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]"
  }
}