verifyanything

VerifyAnything DRAFT wire SDK for python. Independently versioned package 0.1.0, intended registry: PyPI. Names/ownership must be confirmed before publication.

VCP means portable verification semantics; Provider Contract means the portable verifier interface; Relay is the separate Python reference execution engine.

This SDK bundles every normative VCP/Provider schema at source revision 5f17f402a270882f244a54dde25eda92a085eb39. VCP marker: draft; Provider Contract: exact 0.1. Both remain DRAFT with no stable 1.0 promise. Validation does not fetch schemas, artifact content or URLs.

from verifyanything import parse, serialize
value = parse('vcp', 'decision', '{"protocol":"draft","kind":"CONTINUE"}')
print(serialize(value))

Actual support

The public wire object is a native JSON object view, retaining absent fields, explicit null payloads and unknown optional extensions. It is not a complete generated field-by-field static model of every protocol object. Structure-only validation covers all shipped schema roots. Parse/semantic validation supports Result, Decision, Resource, Evidence, ArtifactRef, Extension and ResourceDimension. It checks Result state axes, Decision destinations, meaningful Evidence, resource kinds/ranges, required extensions and nested evidence/usage/extensions.

Provider standalone validation covers manifest structure, capability identity uniqueness and advertised VCP membership, self-contained capability schemas, Outcome state/output/error conditionals, and invocation version/resource-budget checks. validateData (snake_case in Python/Ruby/Rust) validates capability input, config or output with an explicit error classification; formats are annotations. There is no implicit capability matching or session initialization.

Semantic validation of graphs, definitions, profiles, execution-policy objects, dataflow and provenance is not implemented in these new wire libraries. It fails with the local diagnostic SDK_UNSUPPORTED; callers may explicitly request structure-only validation. Provider session/lifecycle, transport, deadline enforcement and contextual invocation matching are also unimplemented. Parsing objects carrying deadline/timestamp fields fails with SDK_UNSUPPORTED; call structure-only validation if that explicit limitation is acceptable. Standalone parsing does not establish those properties. Detailed support/gaps and release gates are in the repository's sdk/README.md and sdk/RELEASE.md.

Errors expose stable codes where the source contract specifies them. Decision rejection uses a local structural classification because the source prose does not specify a Decision-specific diagnostic. No portable canonicalization or hashing is claimed. Serialize preserves data and inserts no schema defaults. Mutable native containers must be validated again after mutation.

Build and test

From this directory: python -m pip install -e . pytest && python -m pytest. From the source repository root: python tools/sdk_verify.py python runs the native runner over the same versioned conformance/sdk/manifest.json, builds twice, compares package file contents and installs into a separate consumer. Dependency installation can use the network; actual schema validation is offline. The shared corpus is a bounded compatibility test, not full protocol certification.

This independently packaged wire-only library uses module verifyanything and project verifyanything. The original openverify Python distribution and its Relay API remain unchanged. Both are checked against the common fixtures.

Release

Tag only this language: sdk/python/vX.Y.Z after updating only its package. The protected release environment is sdk-python. First publication requires owner setup and explicit approval; no package has been published by this change. License: MIT (included in the distribution).

Package setup: VerifyAnything publication guide.