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Maurizio Albari b594fc2dbd fix: update serve:http to run main.ts instead of server.ts (#315 ) After commit `65a62a9f`, the server startup code was moved from server.ts to main.ts, but the serve:http script was not updated accordingly. This caused 9 example servers to fail to start when running npm start: - budget-allocator-server - cohort-heatmap-server - customer-segmentation-server - integration-server - map-server - scenario-modeler-server - system-monitor-server - threejs-server - wiki-explorer-server The server.ts file now only exports createServer(), while main.ts contains the actual server startup logic.		2026-01-20 17:57:08 +00:00
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src	feat: use structuredContent with outputSchema in example servers (#220 )	2026-01-12 14:25:16 +00:00
.gitignore	Improve consistency and organization of examples for AI learning	2026-01-13 20:48:02 -06:00
grid-cell.png	feat: add example gallery with auto-generated screenshots (#253 )	2026-01-13 15:12:18 +00:00
main.ts	feat: compile example servers to JavaScript for npm consumption (#259 )	2026-01-14 23:46:17 +00:00
mcp-app.html	Add color-scheme meta tag to all example apps	2025-12-15 11:42:18 -08:00
package.json	fix: update serve:http to run main.ts instead of server.ts (#315 )	2026-01-20 17:57:08 +00:00
README.md	docs: add MCP client configuration to example READMEs	2026-01-16 14:00:57 +00:00
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server.ts	fix(examples): resolve DIST_DIR path for npm package execution (#277 )	2026-01-15 12:23:13 +00:00
tsconfig.json	Add budget-allocator-server example	2025-12-04 14:33:01 -06:00
tsconfig.server.json	feat: compile example servers to JavaScript for npm consumption (#259 )	2026-01-14 23:46:17 +00:00
vite.config.ts	Add budget-allocator-server example	2025-12-04 14:33:01 -06:00

README.md

Example: Budget Allocator App

An interactive budget allocation tool demonstrating real-time data visualization with MCP Apps.

MCP Client Configuration

Add to your MCP client configuration (stdio transport):

{
  "mcpServers": {
    "budget-allocator": {
      "command": "npx",
      "args": [
        "-y",
        "--silent",
        "--registry=https://registry.npmjs.org/",
        "@modelcontextprotocol/server-budget-allocator",
        "--stdio"
      ]
    }
  }
}

Features

Interactive Sliders: Adjust budget allocation across 5 categories (Marketing, Engineering, Operations, Sales, R&D)
Donut Chart: Real-time visualization of allocation distribution using Chart.js
Sparkline Trends: 24-month historical allocation data per category
Percentile Badges: Compare your allocation vs. industry benchmarks
Stage Selector: Switch between Seed, Series A, Series B, and Growth benchmarks
Budget Presets: Quick selection of $50K, $100K, $250K, or $500K totals

Running

Install dependencies:
```
npm install
```

Build and start the server:

npm run start:http  # for Streamable HTTP transport
# OR
npm run start:stdio  # for stdio transport

View using the basic-host example or another MCP Apps-compatible host.

Architecture

Server (`server.ts`)

Exposes a single get-budget-data tool that returns:

Category definitions with colors and default allocations
Historical data (~120 data points) - 24 months of allocation history per category
Industry benchmarks (~60 data points) - Aggregated percentile data by company stage

The tool is linked to a UI resource via _meta.ui.resourceUri.

App (`src/mcp-app.ts`)

Uses Chart.js for the donut chart visualization
Renders sparkline trends using inline SVG
Computes percentile rankings client-side from benchmark data
Updates all UI elements reactively on slider changes