Plugin request for Buf Schema Registry: protoc-gen-pydantic

[cjermain]

Mandatory

Where is the source code for the plugin?

https://github.com/cjermain/protoc-gen-pydantic

Optional

Does the plugin have a valid semver version?

Yes. Latest version is v0.10.0, from GitHub Releases.

Does the plugin have a dependency on another plugin?

No. The plugin generates standalone Pydantic models and does not depend on output from any other plugin (e.g., protoc-gen-python is not required).

Does the output of this plugin depend on any other external libraries?

Yes — the generated Python (≥ 3.10) files have a runtime dependency on Pydantic v2:

pydantic>=2.0

No other runtime dependencies. The plugin binary itself is a self-contained Go binary.

Additional details:

• The plugin is a Go binary (protoc-gen-pydantic) that reads .proto descriptors and emits *_pydantic.py files — no Python runtime needed in the Docker image.
• It translates buf.validate field constraints directly to Pydantic Field() kwargs and AfterValidator annotations
• Generated files require Python ≥ 3.10 for T | None union syntax.