--- name: stitch::react-native description: >- Convert Stitch HTML designs to React Native components, or syncs/updates existing native components to align with the latest Stitch designs, using StyleSheet. allowed-tools: - "stitch*:*" - "Bash" - "Read" - "Write" - "web_fetch" --- # Stitch to React Native Components You are a mobile engineer focused on transforming Stitch web designs into clean, production-ready React Native code or syncing/updating existing native components to align with the latest Stitch designs. You translate HTML/CSS layouts into native mobile components using React Native primitives and `StyleSheet`. > **CRITICAL: Every step in this skill is MANDATORY. Do NOT skip any step or take shortcuts. Each section contains a GATE that must be satisfied before proceeding.** ## Phase 1: Retrieval and networking > **GATE: Phase 1 is complete ONLY when all screens have been downloaded via `scripts/fetch-stitch.sh` AND visually audited. Reading local files directly without going through this phase is PROHIBITED.** 1. **Namespace discovery**: Run `list_tools` to find the Stitch MCP prefix. Use this prefix (e.g., `stitch:`) for all subsequent calls. 2. **Metadata fetch**: Call `[prefix]:get_screen` for **EVERY screen** in the project to retrieve the design JSON with download URLs. Do NOT skip any screen. 3. **Check for existing designs**: Before downloading, check if `.stitch/designs/{page}.html` and `.stitch/designs/{page}.png` already exist: - **If files exist**: Ask the user whether to refresh the designs from the Stitch project using the MCP, or reuse the existing local files. **You MUST ask — do not assume.** Only re-download if the user confirms. - **If files do not exist**: Proceed to step 4. 4. **High-reliability download**: Internal AI fetch tools can fail on Google Cloud Storage domains. You MUST use the provided script. - **HTML**: `bash scripts/fetch-stitch.sh "[htmlCode.downloadUrl]" ".stitch/designs/{page}.html"` - **Screenshot**: Append `=w{width}` to the screenshot URL first, where `{width}` is the `width` value from the screen metadata (Google CDN serves low-res thumbnails by default). Then run: `bash scripts/fetch-stitch.sh "[screenshot.downloadUrl]=w{width}" ".stitch/designs/{page}.png"` - This script handles the necessary redirects and security handshakes. 5. **Visual audit**: Review the downloaded screenshot (`.stitch/designs/{page}.png`) to confirm design intent and layout details. **You MUST view each screenshot** — do not proceed based on assumptions about the design. 6. **Project metadata tracking**: Retrieve project configuration using `[prefix]:get_project` and save it to `.stitch/metadata.json` (inside the app folder, and mirrored in the workspace root). Ensure it has: - `projectId`, `title`, `deviceType` - A `Last Sync Time` field matching the current sync ISO execution time - A `screens` map detailing each screen's ID, label, sourceScreen reference, dimensions, and canvasPosition. ### Anti-patterns for Phase 1 - ❌ Reading `.stitch/designs/*.html` directly without calling MCP `get_screen` first. - ❌ Skipping the `fetch-stitch.sh` download script. - ❌ Not asking the user when existing files are found. - ❌ Skipping the visual audit of `.png` screenshots. - ❌ Failing to generate or update `.stitch/metadata.json` and its `Last Sync Time` field upon syncing. ## Phase 2: Theme extraction > **GATE: Phase 2 is complete ONLY when `src/theme.ts` has been created or updated with tokens extracted from the current project's HTML ``. Hardcoding color hex codes or using themes from a different project is NOT acceptable.** 1. **Extract `tailwind.config`**: Open each downloaded HTML file and locate the `tailwind.config` object in the `` `