574a768e09* feat: add script to generate 300x300 grid-cell.png screenshots for examples
- Add generate-grid-screenshots.spec.ts Playwright test to capture screenshots
- Add npm run generate:screenshots command (Docker-based for Santa compatibility)
- Add sharp dependency for image resizing with centered-fill mode
- Generate grid-cell.png for 14 example servers (only React for basic-server-* series)
The screenshots are 300x300 PNG images cropped with centered fill mode,
suitable for use in a grid layout showcasing the examples.
* docs: add example gallery grid to README
Add a 3-column visual grid showcasing 14 example MCP Apps with:
- Thumbnail screenshots (300x300 grid-cell.png)
- Clickable links to example directories
- Hover tooltips with brief descriptions
Organized by visual impact: 3D/WebGL examples first, then
visualizations, charts, monitoring, and starter templates.
* fix: use aspect-fit instead of crop for screenshots
Change from fit: 'cover' (crops) to fit: 'contain' (letterbox)
so the full app content is visible without cropping.
* feat: improve screenshot generation
- Constrain viewport to 500px width for consistent rendering
- Wait 5 seconds for full app load (tiles, animations, data)
- Screenshot just the inner iframe (no extra whitespace)
- Save both screenshot.png (full-size) and grid-cell.png (300x300 thumbnail)
- Use contain mode to preserve aspect ratio
* fix: use cover mode with top alignment for grid thumbnails
No letterboxing - crops to fill 300x300, aligned to top so headers
and important content are always visible.
* feat: improve screenshot gallery
- Remove integration-server from gallery (it's for E2E testing only)
- Add 30s extra wait for Map and Video servers to load fully
- Improve Three.js default scene: isometric rotation + better lighting
- Update README: Starter Templates row with links to all framework variants
(React, Vue, Svelte, Preact, Solid, Vanilla JS)
- Regenerate all screenshots with updated settings
* fix: improve README gallery layout
- Fix uneven column widths by using minimal separator
- Move Starter Templates to separate 2-cell table with description
- Add screenshot.png to top of each example README (13 examples)
- Shorten tooltips for cleaner table
* revert to document.write again; cesiumjs doesn't like srcdoc, period.
* fix: map-server screenshot now renders properly
- Merged ochafik/post-fixes which reverts sandbox from srcdoc to document.write
(CesiumJS doesn't work with srcdoc iframes)
- Fixed map-server name in screenshot test ('Map Server' not 'CesiumJS Map Server')
- Simplified screenshot generation script (removed complex debugging code)
- Increased map-server wait time to 45s for reliable tile loading
- Regenerated all 13 screenshots
* fix: remove redundant screenshots from READMEs
Remove the simple \ line from READMEs that
already had nicer HTML table screenshots. Keep it only for examples
that didn't have existing screenshots.
* docs: move gallery to Examples section
- Move screenshot gallery from top of README to Examples section
- Remove redundant list of basic examples (now shown visually in gallery)
- Clean up duplicate run instructions
* fix: remove empty header row from starter templates table
* fix: remove empty header rows from both tables
* fix: add prettier-ignore to prevent table header expansion
* feat: use custom screenshot for video-resource-server
- Use better screenshot from PR #253 comment showing actual video playback
- Skip video-resource-server in screenshot generation script
- Add SKIP_SERVERS set for manually maintained screenshots
* fix: revert unrelated map-server name change
* fix: use correct server name 'CesiumJS Map Server' in screenshot test
91 lines
2.4 KiB
Markdown
91 lines
2.4 KiB
Markdown
# Transcript Server
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An MCP App Server for live speech transcription using the Web Speech API.
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## Features
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- **Live Transcription**: Real-time speech-to-text using browser's Web Speech API
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- **Transitional Model Context**: Streams interim transcriptions to the model via `ui/update-model-context`, allowing the model to see what the user is saying as they speak
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- **Audio Level Indicator**: Visual feedback showing microphone input levels
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- **Send to Host**: Button to send completed transcriptions as a `ui/message` to the MCP host
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- **Start/Stop Control**: Toggle listening on and off
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- **Clear Transcript**: Reset the transcript area
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## Setup
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### Prerequisites
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- Node.js 18+
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- Chrome, Edge, or Safari (Web Speech API support)
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### Installation
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```bash
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npm install
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```
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### Running
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```bash
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# Development mode (with hot reload)
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npm run dev
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# Production build and serve
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npm run start
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```
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## Usage
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The server exposes a single tool:
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### `transcribe`
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Opens a live speech transcription interface.
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**Parameters:** None
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**Example:**
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```json
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{
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"name": "transcribe",
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"arguments": {}
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}
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```
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## How It Works
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1. Click **Start** to begin listening
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2. Speak into your microphone
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3. Watch your speech appear as text in real-time (interim text is streamed to model context via `ui/update-model-context`)
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4. Click **Send** to send the transcript as a `ui/message` to the host (clears the model context)
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5. Click **Clear** to reset the transcript
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## Architecture
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```
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transcript-server/
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├── server.ts # MCP server with transcribe tool
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├── server-utils.ts # HTTP transport utilities
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├── mcp-app.html # Transcript UI entry point
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├── src/
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│ ├── mcp-app.ts # App logic, Web Speech API integration
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│ ├── mcp-app.css # Transcript UI styles
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│ └── global.css # Base styles
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└── dist/ # Built output (single HTML file)
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```
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## Notes
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- **Microphone Permission**: Requires `allow="microphone"` on the sandbox iframe (configured via `permissions: { microphone: {} }` in the resource `_meta.ui`)
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- **Browser Support**: Web Speech API is well-supported in Chrome/Edge, with Safari support. Firefox has limited support.
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- **Continuous Mode**: Recognition automatically restarts when it ends, for seamless transcription
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## Future Enhancements
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- Language selection dropdown
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- Whisper-based offline transcription (see TRANSCRIPTION.md)
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- Export transcript to file
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- Timestamps toggle
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