msgspec - Define and serialize validated msgspec data models
Guides defining msgspec Structs, validation constraints, JSON or MessagePack codecs, type conversion, and tagged unions.
Tags
Updated: 2026-09-29Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Define msgspec Structs
- Apply validation constraints
- Encode and decode JSON
- Encode and decode MessagePack
- Convert typed data
- Define tagged unions
- Create dynamic Structs
- Configure custom hooks
Inputs
- Python data shapes
- Struct field definitions
- Validation constraints
- Serialization format
- Custom type mappings
- Union variants
Outputs
- msgspec Struct definitions
- Validation errors
- Serialized JSON bytes
- Serialized MessagePack bytes
- Decoded typed objects
- Converted data objects
Requirements
- Python environment
- msgspec library