gstack/NOTICE.md

Third-Party Notices

gstack is MIT. The files below contain material derived from Apache-2.0 and MIT works, rewritten in gstack's voice and modified. Rewriting is not an exemption: the license texts are in licenses/, and each file derived from an Apache-2.0 work carries a notice that it was changed. Unmodified copies (the rule-registry fixture, the license text) carry no header and are listed here instead.

impeccable — Copyright Paul Bakaus — Apache License 2.0

https://github.com/pbakaus/impeccable

Derived, modified:

• lib/design-catalog.ts: rule ids and names from crates/live/assets/antipatterns.json; the prose is gstack's.
• scripts/resolvers/design.ts: the Persuade / Operate / Read / Experience visitor modes, the craft-floor reflexes (browser surfaces, one authored motion moment, depth has an offset, tinted secondary text, space above headings, light-or-dark from the use scene), and the three-looks calibration, from SKILL.md, reference/craft-floor.md, and reference/new-work.md, rewritten.
• design-consultation/sections/proposal-and-preview.md.tmpl: the font-selection procedure and the calibration paragraph, rewritten; and the SKILL.md / sections/*.md files generated from these sources.

Unmodified copy:

• test/fixtures/impeccable-antipatterns.json: crates/live/assets/antipatterns.json at commit 87d8f6d6 (engine-v0.1.3), wrapped in a _source provenance object.

Not distributed: bin/gstack-design-detect.ts invokes an impeccable engine the user installed. gstack does not ship or mirror that engine and never runs impeccable's installer or launcher. The one download gstack can make is the engine binary itself, only after the user accepts a design skill's one-time offer: fetched from impeccable's own GitHub release into ~/.impeccable/bin/<version>/, verified against the checksum pinned in lib/design-detect-contract.ts, and recorded in the egress ledger first. gstack does not audit the engine's network behavior; the wrapper refuses URL targets so gstack never asks it to touch the network.

ai-design-skills and redesign-skill — Copyright (c) 2026 Elaya — MIT License

https://github.com/elayadesign/ai-design-skills (skills/landing-page-design, skills/design-to-motion, at 38bbe576) and https://github.com/elayadesign/redesign-skill (skills/redesign-existing-projects, at 64627f6e). License text: licenses/MIT-elaya.txt.

Derived, modified (rules rewritten in gstack's voice and reconciled with its design rules; Elaya's fixed fonts, colors, spacing values, icon sets and signature components are not carried over):

• design-html/sections/craft.md.tmpl: the Persuade intake, page archetypes, page structure, conversion and copy rules, indexing and build order from landing-page-design Part A; the content-realism, ship-floor, scale-snapping, line-break and motion rules from landing-page-design Part B, the website context of design-to-motion and the redesign-skill audit; and the generated design-html/SKILL.md / sections/craft.md.
• lib/design-craft.ts and bin/gstack-design-craft: the content-realism and ship-floor tells, turned into a free check.
• design-shotgun/SKILL.md.tmpl: page archetypes as a variant axis.

hallmark — Copyright (c) 2026 Hallmark contributors — MIT License

https://github.com/Nutlope/hallmark (skills/hallmark/scripts/sloplint.mjs, sloplint-render.mjs, references/gates.md, scripts/fixtures/, at 7ec8682). License text: licenses/MIT-hallmark.txt.

Derived, modified (every gate rewritten in TypeScript and in gstack's voice, mapped onto gstack's severity words; hallmark's theme stamp, genres, posture guards, photo index and judged gates are not carried over):

• lib/design-lint/ and bin/gstack-design-lint: the static tier's parsers (CSS rules and tokens, HTML and component pseudo-HTML, Tailwind class strings), the colour maths, the waiver record, and the rule families under lib/design-lint/rules/; the render tier in lib/design-lint/render*.ts, driving gstack's own browser instead of puppeteer.
• test/fixtures/design-lint/{slopped.html,eyebrow-pass,eyebrow-fail,tailwind-pass,tailwind-fail,waiver}: the fixtures, with their waiver comments rewritten to the lint's form.

DESIGN.md specification — Copyright Google LLC — Apache License 2.0

https://github.com/google-labs-code/design.md

lib/design-md.ts, bin/gstack-design-md.ts, and the Phase 6 template in design-consultation/sections/proposal-and-preview.md.tmpl implement the format (YAML token front matter in five groups, eight canonical sections in spec order, {path} token references). No specification text is reproduced.