# Send Mcp App Builder to your agent Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually. ## Fast path - Download the package from Yavira. - Extract it into a folder your agent can access. - Paste one of the prompts below and point your agent at the extracted folder. ## Suggested prompts ### New install ```text I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete. ``` ### Upgrade existing ```text I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run. ``` ## Machine-readable fields ```json { "schemaVersion": "1.0", "item": { "slug": "mcp-app-builder", "name": "Mcp App Builder", "source": "tencent", "type": "skill", "category": "开发工具", "sourceUrl": "https://clawhub.ai/hollaugo/mcp-app-builder", "canonicalUrl": "https://clawhub.ai/hollaugo/mcp-app-builder", "targetPlatform": "OpenClaw" }, "install": { "downloadUrl": "/downloads/mcp-app-builder", "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=mcp-app-builder", "sourcePlatform": "tencent", "targetPlatform": "OpenClaw", "packageFormat": "ZIP package", "primaryDoc": "SKILL.md", "includedAssets": [ "SKILL.md", "agents/openai.yaml", "assets/mcp-app-template/package.json", "assets/mcp-app-template/postcss.config.js", "assets/mcp-app-template/server.ts", "assets/mcp-app-template/src/components/Card.tsx" ], "downloadMode": "redirect", "sourceHealth": { "source": "tencent", "slug": "mcp-app-builder", "status": "healthy", "reason": "direct_download_ok", "recommendedAction": "download", "checkedAt": "2026-05-05T10:19:37.496Z", "expiresAt": "2026-05-12T10:19:37.496Z", "httpStatus": 200, "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=mcp-app-builder", "contentType": "application/zip", "probeMethod": "head", "details": { "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=mcp-app-builder", "contentDisposition": "attachment; filename=\"mcp-app-builder-0.1.0.zip\"", "redirectLocation": null, "bodySnippet": null, "slug": "mcp-app-builder" }, "scope": "item", "summary": "Item download looks usable.", "detail": "Yavira can redirect you to the upstream package for this item.", "primaryActionLabel": "Download for OpenClaw", "primaryActionHref": "/downloads/mcp-app-builder" }, "validation": { "installChecklist": [ "Use the Yavira download entry.", "Review SKILL.md after the package is downloaded.", "Confirm the extracted package contains the expected setup assets." ], "postInstallChecks": [ "Confirm the extracted package includes the expected docs or setup files.", "Validate the skill or prompts are available in your target agent workspace.", "Capture any manual follow-up steps the agent could not complete." ] } }, "links": { "detailUrl": "https://openagent3.xyz/skills/mcp-app-builder", "downloadUrl": "https://openagent3.xyz/downloads/mcp-app-builder", "agentUrl": "https://openagent3.xyz/skills/mcp-app-builder/agent", "manifestUrl": "https://openagent3.xyz/skills/mcp-app-builder/agent.json", "briefUrl": "https://openagent3.xyz/skills/mcp-app-builder/agent.md" } } ``` ## Documentation ### Overview Create MCP Apps that expose tools with visual React UIs for ChatGPT or Claude. Follow the exact dependency versions and server/UI patterns in references/mcp-app-spec.md. ### Workflow Clarify requirements: what data to visualize, UI pattern (card, table, chart, dashboard, form), data source, and how many tools (start with 1-2). Design tools and UI mapping: define tool names, zod input schemas, output shape, and UI resource URIs (ui://.../app.html). Map each tool to one React entrypoint and one HTML file. Scaffold the project: start from assets/mcp-app-template/ when possible, then customize tool names, schemas, and UI. Ensure package.json uses the exact versions, plus tsconfig.json, vite.config.ts, Tailwind + PostCSS, and per-tool build scripts. Implement the server: use registerAppTool/registerAppResource, zod schemas directly, createServer() factory per request, and createMcpExpressApp with app.all("/mcp", ...). Implement the UI: use useApp + useHostStyles, parse tool results, handle loading/error/empty states, and apply safe-area insets. Build and test: run npm run build, then npm run serve, then verify via a tunnel if needed. ### Hard Requirements Use the exact dependency versions listed in references/mcp-app-spec.md. Use registerAppTool/registerAppResource and zod schemas directly (not JSON Schema objects). Create a new McpServer instance per request via createServer(). Use createMcpExpressApp and app.all("/mcp", ...). Bundle UI into single-file HTML via vite-plugin-singlefile. Use host CSS variables for theme compatibility. ### References references/mcp-app-spec.md (authoritative spec, patterns, code templates, gotchas) ### Assets assets/mcp-app-template/ (ready-to-copy MCP App skeleton with one tool + UI) ## Trust - Source: tencent - Verification: Indexed source record - Publisher: hollaugo - Version: 0.1.0 ## Source health - Status: healthy - Item download looks usable. - Yavira can redirect you to the upstream package for this item. - Health scope: item - Reason: direct_download_ok - Checked at: 2026-05-05T10:19:37.496Z - Expires at: 2026-05-12T10:19:37.496Z - Recommended action: Download for OpenClaw ## Links - [Detail page](https://openagent3.xyz/skills/mcp-app-builder) - [Send to Agent page](https://openagent3.xyz/skills/mcp-app-builder/agent) - [JSON manifest](https://openagent3.xyz/skills/mcp-app-builder/agent.json) - [Markdown brief](https://openagent3.xyz/skills/mcp-app-builder/agent.md) - [Download page](https://openagent3.xyz/downloads/mcp-app-builder)