feat(wix-headless): hybrid layout — LLM hero + fragment about/nav (CODEAI-696, experiment)#410
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…t/nav (CODEAI-696) Baby step toward less-deterministic layout. Keeps about + nav as random pinned fragments (PR #408's combinatorial approach), but lets an LLM generate the hero <section> per site for genuinely non-templated variety on the highest-impact surface. - compose.mjs: new optional `heroPath` input. When set (an LLM-generated hero <section> file), it fills the hero slot instead of a pinned hero fragment; about + nav stay fragment-composed. Absent/missing ⇒ falls back to a random hero fragment (the deterministic path is unchanged). Manifest data.layout records hero = "llm-generated". - BUILD-astro.md: documents the hybrid — dispatch a Default-tier hero generator between emit-design-tokens and compose, authoring .wix/hero.html, with a hero contract (self-contained <section>; compose design tokens as utilities; exactly one data-decorative-slot="hero"; real brand-voice copy, no placeholders). Verified: compose parses; hybrid mode injects the generated hero + keeps fragment about/nav; fallback mode (no heroPath) still picks a fragment hero. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This was referenced Jun 17, 2026
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Experiment: less-deterministic layout (baby step)
Branched off PR #408 (combinatorial fragments). Trades some determinism for non-templated variety on the hero while keeping cheap, reliable fragments for about + nav.
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compose.mjs— optionalheroPath: when set (an LLM-generated hero<section>file) it fills the hero slot; about + nav stay fragment-composed; absent ⇒ falls back to a random hero fragment (deterministic path unchanged).data.layout.hero = "llm-generated".BUILD-astro.md— documents the hybrid step + the hero contract (self-contained<section>; tokens as utilities; onedata-decorative-slot="hero"; real copy).Base = #408 branch, so this PR is just the hybrid delta.
Benchmark — same 5 vibe prompts, baseline (fragment hero) vs hybrid (LLM hero)
Token cost: flat (within noise). The orchestrator is already an LLM authoring copy; generating the hero markup is a negligible increment — two hybrid runs even came in lower.
Wall-clock: hybrid avg ~630s vs baseline ~477s (+32%) — but confounded. Every hybrid run hit 1–4 transient
wix release"temporary system error" retries today; the baseline run earlier had clean first-attempt releases. The delta is a Wix platform hiccup, not the hybrid compute (which is ~one extra file write).Quality: LLM heroes are markedly more distinctive — eyebrow tags, headline emphasis, CTA pairs, stat strips, badges, full-bleed treatments — vs the generic fragment hero (headline + sub + image block).
Live sites (same prompts both ways)
Baseline (fragment hero): ember-oak-5b86f38e · form-studi-cb341e91 · honey-rye-994b0744 · bloom-brig-03bde58a · maison-noi-91793111 (all
.wix-site-host.com)Hybrid (LLM hero): ember-oak-599fd88a · form-studi-cc8a7d39 · honey-rye-9fbe1226 · bloom-brig-1671b121 · maison-noi-3b770e0d (all
.wix-site-host.com)🤖 Generated with Claude Code