• Read every file under debian/ except debian/watch (out of scope), and every non-debian file in the tree; lib/write-one.js, lib/build-graph.js and package-lock.json were only sampled (the last contains no licence material).
• The only copyright notices in the source are in LICENSE and browser.js: Copyright (c) 2012-2013 Chris Pettitt, Expat. debian/copyright names him for Files: * with the complete Expat text, and names Juan Manuel Méndez Rey for debian/*; both match the files.
• Grep over the whole tree for Copyright, (C), ©, SPDX-License-Identifier, Licensed under, Permission is hereby granted, GNU General/Lesser, Apache License, Mozilla Public, public domain, All rights reserved and for restrictive wording (commercial, proprietary, not permitted, non-free) found nothing beyond the Expat notices; the prescan's holder check likewise found every holder named.
• lib/lodash.js, lib/graphlib.js and test/chai.js are short shims that require() the Debian packages or fall back to a browser global; they are not copies of lodash, graphlib or chai, so the embedded-javascript-library override for lib/lodash.js is justified and no vendored library needs its own stanza.
• The repack is consistent with the documentation: dist/ and lib/dot-grammar.js are absent from both node-graphlib-dot_0.6.4+ds.orig.tar.xz and the unpacked tree, and absent from the .debian.tar.xz; src/dot-grammar.pegjs, browser.js and lib/*.js are present, debian/rules:14-25 regenerates the parser and bundles, and debian/clean removes them.
• No binaries, images, fonts, PDFs or minified JavaScript are in the source tree (a glob for the usual binary/minified extensions returned nothing); package-lock.json is npm's lockfile, not code, and the only third-party code is the graphlib/lodash that the build bundles from Debian's packages.
• debian/rules:27-36 records node-graphlibrary and node-lodash with exact source versions in Static-Built-Using; the field exists in dpkg (Dpkg::Control::FieldsCore allows it for packages, deb-control(5) documents it since dpkg 1.21.3) and apt-cache confirms both source packages exist. The full bundle really does contain them, because browserify is called with -r $(GRAPHLIB):graphlib -r $(LODASH):lodash.
• The Build-Depends names resolve: node-browserify, uglifyjs, node-graphlibrary and node-lodash are real packages in the archive; pegjs, node-chai, node-mocha and dh-sequence-nodejs are virtual and provided by node-pegjs, chai, mocha and dh-nodejs (apt-cache).
• Testsuite: autopkgtest-pkg-nodejs plus debian/tests/pkg-js/test is the documented autodep8 nodejs mechanism (read /usr/share/autodep8/support/nodejs/detect and generate); pkg-js-tools' buildsystem runs the same file during the build (/usr/share/perl5/Debian/Debhelper/Buildsystem/nodejs.pm, sub test), so node-mocha/node-chai are correctly <!nocheck> and node-graphlibrary/node-lodash cover the tests' require("graphlib")/require("lodash").
• Standards-Version: 4.7.4 matches the first two components of Policy 4.7.4.1, so it is current; debian/changelog is 0.6.4+ds-1 in unstable with an ITP closure, debian/source/format is 3.0 (quilt), and Vcs-*, Homepage, debian/gbp.conf and debian/upstream/metadata agree with the source.
• The four test files that debian/tests/pkg-js/test runs use only chai-4-compatible assertions; the chai-1 alias .eqls occurs only in test/bundle-test.js, which is not run. No maintainer scripts, .maintscript, install/links files or patches exist, and none are needed.
• No file was found with a different licence: the tree is uniformly Expat/MIT, so the licences combined in the package are compatible.
• uscan found the packaged version as the newest upstream release (upstream 0.6.4, packaged 0.6.4+ds).

• Could not run anything: the pegjs, browserify and uglifyjs steps were not executed and the generated lib/dot-grammar.js and dist/ bundles were therefore not inspected; that the parser generated by Debian's PEG.js 0.10 matches the behaviour of upstream's 0.8 build rests on the rules comment and the test-suite design, not on a run.
• Could not verify that node-pegjs, the only provider of the virtual pegjs Build-Depends, installs the /usr/bin/pegjs that debian/rules:18 invokes; a build on a clean chroot would show it, and nothing in the package indicates another provider.
• Could not confirm, without running browserify, that --no-bundle-external leaves graphlib and lodash out of dist/graphlib-dot.core.js, as debian/control's description states; if it does not, the description would be slightly inaccurate but the bundle would still work.
• Did not review debian/watch (checked separately) and could not check network-only facts such as the ITP bug or the Salsa repository.

None.