go-test-failing.json, go-test-slow.json, go-test-empty.json and go-digest.json are what mesh-catalog's mesh-build-go answers (TestResult and DigestResult, cmd/mesh-build-go levels.go and digest.go), marshalled by the module's own code: a throwaway test beside the module's test_test.go and digest_test.go (workspaceFor + runUnit on the fixtures testdata/captured/failing, slow and empty, and digestFixture + digests on testdata/repos/digest) at mesh-catalog origin/main cdbdb474, captured on 2026-10-21 for issue 1679 and not kept there. The fixtures' package names are the build module's own (fixture/failing/bad...). go-fetch-clean.json and go-fetch-conflict.json are what mesh-build-go's fetch step ends with (FetchResult, cmd/mesh-build-go fetch.go and preview.go) for a fetch with a base, the Result bytes of the step in mesh-catalog's own tests TestFetchWithABaseMergesAndAnswersThePreview and TestFetchWithAConflictEndsPassedAndNamesTheFiles (preview_test.go), copied into a throwaway test that wrote them out, at mesh-catalog feat/r4c5-checker d5804927 (the git commands are the test's fake, so the shas are its constants; the shape and the field names are the module's own marshalling). node-fetch-clean.json is the FetchResult json.Marshal of mesh-build-node's fetch (fetch.go, preview.go) in its test TestFetchWithABaseMergesAndAnswersThePreview (cmd/mesh-build-node/preview_test.go) at the same commit. Captured on 2026-10-21 for issue 1679.