tachograph-go

specialized knowledge for parsing/marshalling EU tachograph files. Use when needing to understand the .DDD/.V1B file format, TLV/TV protocols, ASN.1 mappings, or EU regulation compliance.

Guide for writing idiomatic, effective, and standard Go code. Use this skill when writing, refactoring, or reviewing Go code to ensure adherence to established conventions and best practices.

Build tool for Go projects. Use when the user wants to create, edit, or understand Way-specific Magefiles, build targets, or automate Go project tasks.

Reference for ASN.1 notation, BER (Basic Encoding Rules), and DER (Distinguished Encoding Rules). Use when decoding/encoding binary data, debugging ASN.1 structures, or understanding PKCS standards.

Use when working with Protocol Buffer (.proto) files, buf.yaml, buf.gen.yaml, or buf.lock. Covers proto design, buf CLI, gRPC/Connect services, protovalidate constraints, schema evolution, and troubleshooting lint/breaking errors.