LMXF-specification/Codex_Response_3.md

Task #2 completed in /usr/local/src/reticulum/LXMF.

Created:

• tools/make_test_vectors.pl
• tools/verify_examples.pl
• tools/LXMF/MessagePack.pm
• tools/README.md
• examples/lxmf_message_minimal.hex
• examples/lxmf_message_stamped.hex
• examples/lxmf_message_vectors.json

The dependency-free Perl tooling verifies:

• Fixed hash/signature positions
• Payload order and MessagePack types
• Message ID calculation
• Optional stamp exclusion from message ID and signature input

Validation passed:

Reticulum umsgpack byte-for-byte cross-check passed
All LXMessage test-vector checks passed.

The vectors regenerate deterministically. Signature bytes are documented placeholders; Ed25519 validation is not claimed. SPEC.md was not created or modified.