fallow-cov-protocol

Versioned JSON envelope types shared between the public fallow CLI and the closed-source fallow-cov production-coverage sidecar.

Why this crate exists

Production Coverage Intelligence in fallow is a two-binary architecture: the open-source CLI handles static analysis and IO; a separate paid sidecar does V8-to-Istanbul normalization, three-state tracking, and combined scoring. Both sides marshal data through JSON on stdin/stdout. This crate is the single source of truth for that envelope so the two repositories cannot drift.

Versioning

The protocol_version field is a full semver string. Consumers MUST reject mismatched majors and SHOULD forward-accept unknown fields and unknown enum variants (mapped to Unknown sentinel values).

Status

Early access. Breaking changes until 1.0.0.

License

MIT OR Apache-2.0