• Tree covered in full: 22 upstream files (LICENSE, README.md, go.mod, go.sum, .gitignore, .github/workflows/test.yml, cmd/version/main.go, three examples, hack/generate.sh, hack/input.csv, hack/generator/{main.js,package.json,package-lock.json}, seven files in pkg/) plus the nine files of debian/. .pc/ was left alone.
• The prescan's author check found every holder it matched already named and listed no other file to account for; no file carries a copyright notice apart from LICENSE's unfilled Copyright [yyyy] [name of copyright owner] appendix, which is why the file names commit authors as holders.
• A grep for Copyright, (C), ©, SPDX-License-Identifier, Licensed under, Permission is hereby granted, GNU (Lesser) Public, Apache License, Mozilla Public, public domain, All rights reserved, ISC over the tree with gitignore disabled finds licence wording only in LICENSE (Apache-2.0), debian/copyright and hack/generator/package.json ("license": "ISC"); no non-free or field-of-use wording anywhere.
• pkg/constraint_testcase.go is generated: it starts // Code generated by Node.js. DO NOT EDIT. and hack/generate.sh regenerates it from hack/input.csv with hack/generator/main.js; the generator and its input are both shipped, so the preferred form for modification is present.
• hack/generator/package.json (npm boilerplate with "license": "ISC") is covered by its own ISC stanza in debian/copyright with the full ISC text; hack/generator/package-lock.json is npm dependency metadata (names, versions, integrity hashes), not code, and is covered by Files: *; hack/input.csv is 159 lines of version/constraint test data.
• No vendored third-party tree (no vendor/, no node_modules), no binaries, fonts, images, PDFs or minified files; every source file is small readable text.
• debian/copyright is DEP-5 with the exact 1.0 Format: URL; Files: * is the catch-all, the hack/generator/package.json stanza overrides it for that path and debian/* covers the packaging, so every path in the tree is matched.
• Packaging files read in full: control, rules, changelog, copyright, gbp.conf, salsa-ci.yml, source/format, upstream/metadata; there is no debian/patches, no maintainer scripts and no debian/tests.
• dh-go exists in unstable (1.69, provides the golang addon and dh_golang_autopkgtest) and dpkg-build-api (= 1) is provided by dpkg-dev 1.23.11 (verified with apt-cache/man); golang-github-aquasecurity-go-version-dev 0.0~git20210121.637058c-2 is newer than the go.mod snapshot, which GOPATH-mode building ignores; testify is test-only.
• DH_GOLANG_EXCLUDES := cmd examples removes both from the build targets and, with DH_GOLANG_EXCLUDES_ALL defaulting to on at compat 12+, from the installed source, so the urfave/cli import of cmd/version is never compiled (dh-golang's _set_go111module sets GOPATH mode, GOPROXY=off); the dev package therefore needs only go-version and xerrors.
• dist = DEP14 in gbp.conf is accepted: gbp's buildpackage.py:212 treats both DEP-14 and DEP14 as the special value.
• Standards-Version 4.7.4 matches the reviewing system's Policy 4.7.4.1 in its first two components; the changelog is a well-formed initial release for unstable closing #1152493, and the Vcs-*, Homepage and XS-Go-Import-Path fields are consistent.
• uscan found the packaged version as the newest upstream release (upstream 0.0.2+git20261005.1f16ed7, packaged 0.0.2+git20261005.1f16ed7).
• Every pointer of debian/copyright to /usr/share/common-licenses names a file that is there (Apache-2.0).

• debian/rules:9 passes --builddirectory=debian/_build, while dh_golang_autopkgtest — the helper that runs the implicit test for Testsuite: autopkgtest-pkg-go — works out the build directory with load_buildsystem("golang")->get_builddir(), i.e. the default _build (golang.pm's DEFAULT_BUILD_DIRECTORY at compat 14), and its generated override_dh_auto_configure copies /usr/share/gocode/src into that directory. If that runner is used, it fills _build while dh_auto_build chdirs into debian/_build, which the override never created (Dh_Lib.pm:607 errors on a failed chdir). autopkgtest is not installed on the reviewing system, so I could not confirm that the pkg-go suite invokes this helper; an autopkgtest run would show it. Dropping the option (or using _build) removes the risk.
• Whether pkg/constraint.go really is adapted from Masterminds/semver cannot be settled from the package: upstream's git history is not shipped and there is no network access, so the licensing answer rests on the verbatim text comparison described in the issue.

None.