# Validation evidence Validated locally on 2026-08-28 with Node.js 20.19.1 and Node.js 22.23.2 on Windows. Command: ```powershell npm run check ``` Observed result: - TypeScript build completed. - 9 protocol regression tests passed. - 6 of 6 shipped examples passed the standalone CLI. - Negative cases cover missing schema versions, unknown top-level fields, task/infrastructure result separation, absolute and traversing portable paths, missing observation gaps, missing variant provenance, and incorrect single-run evidence labels. Packaging check: ```powershell .\scripts\Package-Release.ps1 -Version 0.1.2 ``` The current release-candidate pack contained 19 files, about 19 kB compressed and 79 kB unpacked: runtime JS/type declarations, three schemas, six examples, documentation, README, license, notice, and package metadata. Test sources and local dependencies were not included. Release packaging produced: - `runcase-interchange-0.1.2.tgz`; - `runcase-interchange-schemas-0.1.2.zip`; - a commit-bound `release-manifest.json`; - `SHA256SUMS.txt`, independently rehashed with all three entries matching. ## Product interoperability evidence - Workflow Environment Factory's Python consumer validates and imports a synthetic `agent.run.v1`, redacts an inline secret, preserves structural fields, and deduplicates the canonical document. - Runtime Evolution Workbench's TypeScript consumer validates and imports a standard `workflow.case.v1`, preserves `secret_refs`, and deduplicates the canonical document. - The Runtime import was also exercised through the real loopback service and browser file picker: one Case appeared in the protocol library, the empty-Run boundary remained visible, and the browser reported no console or page errors. These are sibling implementation results on the stated host, not evidence of independent third-party adoption. Fresh Windows installation and public-release CI remain separate gates.