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Filename Latest commit message Latest commit date
Anton Pidkuiko MacBook 8ef9142f00
 Fix widget layout to use full available width 
- Change marketing widget containers from fixed 600px to width: 100%
- Update basic-host iframe to use flex: 1 for proper expansion
- Widgets now fill their parent container instead of fixed size

Files changed:
- examples/budget-allocator-server/src/mcp-app.css
- examples/customer-segmentation-server/src/mcp-app.css
- examples/scenario-modeler-server/src/mcp-app.css
- examples/system-monitor-server/src/mcp-app.css
- examples/basic-host/src/index.module.css

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-08 14:01:28 +00:00
..
src Fix widget layout to use full available width 2025-12-08 14:01:28 +00:00
mcp-app.html Add scenario-modeler-server example 2025-12-04 14:33:07 -06:00
package.json Add scenario-modeler-server example 2025-12-04 14:33:07 -06:00
README.md Add screenshots to marketing example READMEs 2025-12-05 15:37:25 -06:00
server.ts Add optional stdio transport to marketing example servers 2025-12-08 13:20:07 +00:00
tsconfig.json Add scenario-modeler-server example 2025-12-04 14:33:07 -06:00
vite.config.ts Add scenario-modeler-server example 2025-12-04 14:33:07 -06:00

README.md

Example: SaaS Scenario Modeler

A React-based demo MCP App that lets users adjust SaaS business parameters and see real-time 12-month projections of revenue, costs, and profitability with comparison against pre-built scenario templates.

Compare to Bootstrapped growth VC rocketship

Features

  • Interactive Parameters: 5 sliders for Starting MRR, Growth Rate, Churn Rate, Gross Margin, and Fixed Costs
  • 12-Month Projections: Line chart showing MRR, Gross Profit, and Net Profit over time
  • Scenario Templates: 5 pre-built business strategies (Bootstrapped, VC Rocketship, Cash Cow, Turnaround, Efficient Growth)
  • Template Comparison: Overlay dashed lines to compare your scenario against any template
  • Summary Metrics: Key metrics including Ending MRR, Total Revenue, Total Profit, and break-even month
  • Theme Support: Adapts to light/dark mode preferences

Running

  1. Install dependencies:

    npm install

  2. Build and start the server:

    npm start

    The server will listen on http://localhost:3001/mcp.

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

Architecture

Server (server.ts)

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

  • 5 pre-built scenario templates with parameters, projections, and summaries
  • Default input values for the sliders
  • Optionally computes custom projections when customInputs are provided

The tool is linked to a UI resource via _meta[RESOURCE_URI_META_KEY].

App (src/)

  • Built with React for reactive slider updates and derived state management
  • Uses Chart.js for the line chart visualization
  • All projection calculations run client-side for instant slider feedback
  • Components: SliderRow, MetricCard, ProjectionChart
  • Template comparison shown as dashed overlay lines on the chart