- CHANGELOG.md: Full audit findings organized by severity - PYMC_CORE_ISSUES.md: 7 evidence-based bug reports for pyMC_core (wrong constants, broken path_len decoding, wrong TRACE hash, wrong SNR calculation) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Add comprehensive spec audit results and pyMC_core issue reports - CHANGELOG.md: Full audit findings organized by severity - PYMC_CORE_ISSUES.md: 7 evidence-based bug reports for pyMC_core (wrong constants, broken path_len decoding, wrong TRACE hash, wrong SNR calculation) - Remove ERRATA.md: contents already covered by audit findings Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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MeshCore Spec — Project Guide
What This Project Is
A specification and conformance test suite for the MeshCore mesh networking protocol. It contains:
- RFC-style spec documents in
spec/(Markdown, using RFC 2119 language) - JSON test vector corpus in
corpus/ - Validation tooling in
tools/
Conventions
- All binary data in JSON is uppercase hex (e.g.,
"0D00EFBEADDE"). Whitespace in hex strings is allowed and stripped on parse. - All multi-byte integers are little-endian unless explicitly noted otherwise.
- Test vector IDs use the format
{category}-{NNN}(e.g.,ack-001,kiss-hw-003). - Spec sections are numbered
00-through20-and use RFC 2119 keywords. - The C++ reference implementation at github.com/meshcore-dev/MeshCore is the source of truth for protocol behavior.
Key Protocol Constants
- MAX_PACKET_PAYLOAD: 184 bytes
- MAX_PATH_SIZE: 64 bytes
- CIPHER_MAC_SIZE: 2 bytes
- PATH_HASH_SIZE: 1 byte (default)
- PUB_KEY_SIZE: 32 bytes
- SIGNATURE_SIZE: 64 bytes
- MAX_TRANS_UNIT: 255 bytes
File Organization
spec/NN-topic.md— Spec sections, numbered for reading ordercorpus/schema/— JSON Schema for test vector validationcorpus/{layer}/{type}/— Test vectors organized by protocol layertools/— Python validation and generation scripts
Working With Test Vectors
Each JSON file validates against corpus/schema/test-vector.schema.json.
Vector types: encode_decode, decode_only, invalid.