# LXMessage Test-Vector Tooling

The scripts in this directory verify the implementation-derived LXMessage
packing behavior described in `Code_Response_1.md`.

They use only Perl core modules. The local `LXMF::MessagePack` module implements
the MessagePack subset needed to generate the vectors and parse their complete
payloads.

Generate deterministic vectors:

```sh
perl tools/make_test_vectors.pl
```

Verify the vectors:

```sh
perl tools/verify_examples.pl
```

The vectors confirm:

- the 16-byte destination hash, 16-byte source hash, and 64-byte signature
  positions;
- payload order `[timestamp, title, content, fields, optional_stamp]`;
- float64 timestamp and binary title/content/stamp encodings;
- the message ID calculation;
- exclusion of the optional stamp from the message ID and signature input.

The signature bytes are deterministic placeholders. These vectors do not claim
to verify Ed25519 signing or signature validation.