Stitch Limits: Ideation-Only, Not Ship-Ready

Google Stitch generates fast mockups, rough user flows, and Figma-pasteable designs via prompts and images, making it ideal for early exploration. However, it produces isolated static screens that ignore codebase integration, existing components, project structure, and product constraints—leading to generic AI slop like cluttered heroes, card grids, weak branding, and uniform sections. Reimplementing these mockups separately wastes time and loses fidelity in hierarchy, spacing, typography, motion, responsiveness, consistency, and visual restraint. For shipping polished UIs, Stitch falls short because good design demands context-aware reasoning across the full app, not pretty screenshots.

Code-First Wins: Verdant + Claude 4.6 + Frontend Skill

Pair Claude Opus 4.6 with Verdant's Frontend Design Skill for a superior workflow: install the skill from the marketplace, activate it inline, and work in isolated workspaces with plan-first mode. The model reasons over your repo's structure and components while the skill provides art direction, biasing toward strong composition, clear hierarchy, sparse copy, visual anchors, intentional motion, and fewer cards/colors. Start in plan mode to outline page layout, component breakdown, responsive strategy, image usage, animation, and typography—approve before code generation. This keeps iteration in real frontend code (e.g., React/TS), enabling precise tweaks like "remove card treatment, make hero image-led, reduce copy 30%, tighter mobile" without restarting. Parallel workspaces let you test directions (e.g., editorial vs. startup aesthetic) and merge diffs, mimicking design variance but in a live repo. Alternatives like Kilo CLI or Claude Code work with reusable prompt files but lack Verdant's seamless skill activation and parallelism.

Prompting for Intentional, Non-Generic UIs

Activate the skill with a structured brief: (1) Visual thesis (e.g., cinematic editorial, dark steel with warm accent, premium/technical/playful); (2) Content plan (e.g., full-bleed hero, support proof, workflow details, CTA; or dashboard/workspace/settings); (3) Interaction thesis (e.g., staggered hero, sticky scroll, restrained hovers). Example prompt: "Use Frontend Design Skill. Premium AI coding app landing: visual thesis—cinematic editorial dark steel + warm accent; content plan—full bleed hero, support proof, workflow details, CTA; interaction—staggered hero, sticky workflow, hover reveals. Avoid generic SaaS cards; poster-like first viewport; one dominant idea/section."

Embed stable rules: no generic SaaS card grids/heroes; full-bleed dominant hero; ≤2 typefaces; 1 accent color; poster-like viewport; one job/section; real anchors over decorative gradients; 2-3 meaningful motions; product-specific copy (marketing for landing, utility for dashboard). This prevents failures like fake fluff in interfaces, yielding shippable results closer to production than canvas tools.