Commit graph

343 commits

Author SHA1 Message Date
Olivier Chafik
8c3b1daf7e
chore: bump version to 0.4.1 (#282) v0.4.1 2026-01-15 16:11:53 +00:00
Anton Pidkuiko
be8d725974
Merge pull request #272 from modelcontextprotocol/uv-qr-server
feat(qr-server): migrate to uv with PEP 723 inline dependencies
2026-01-15 14:29:33 +00:00
Olivier Chafik
0936d52d0a
feat(shadertoy): show fullscreen button only on widget hover, add min-height (#281) 2026-01-15 14:15:17 +00:00
Olivier Chafik
b78cd74c1b
feat(shadertoy): add fullscreen support + ditch insets for max visual effect (#278)
* feat(shadertoy): add fullscreen support

Add fullscreen toggle button that appears when the host supports fullscreen
display mode. Uses the same pattern as pdf-server:
- Check availableDisplayModes in host context
- Show/hide button based on capability
- Toggle between inline and fullscreen via requestDisplayMode()
- Update UI state on host context changes

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix(shadertoy): button visibility after exiting fullscreen + Escape key

- Only update button visibility when availableDisplayModes is present
  in context (partial updates don't include all fields)
- Add Escape key handler to exit fullscreen mode

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-15 13:01:55 +00:00
Olivier Chafik
89a684546b
fix(examples): resolve DIST_DIR path for npm package execution (#277)
* fix(examples): resolve DIST_DIR path for npm package execution

When servers are compiled to dist/server.js and published to npm,
`import.meta.dirname` already points to dist/, so joining with "dist"
results in dist/dist/ which doesn't exist.

This fix detects whether we're running from TypeScript source or
compiled JavaScript and adjusts the path accordingly:
- From source (server.ts): use dist/ subdirectory
- From compiled (dist/server.js): use current directory

Fixes ENOENT errors like:
"ENOENT: no such file or directory, open '.../dist/dist/mcp-app.html'"

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix(pdf-server): mark pdfjs-dist as external in bundle

The pdf.worker.mjs file wasn't being found when running from npm
because bun bundled pdfjs-dist but didn't include the worker file.

By marking pdfjs-dist as external, it uses the installed package
from node_modules at runtime where the worker is available.

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-15 12:23:13 +00:00
Olivier Chafik
847427aeef
pdf-server: fix scrolling gap in inline mode (#280)
* map-server: fix async/await in ontoolresult, remove unused getViewStorageKey

* pdf-server: fix scrolling gap in inline mode

- Set html/body background to match .main background color
  This hides any gap between .main and iframe border
- Change .main from height:100% to min-height:100%
  Ensures .main fills container properly
2026-01-15 12:22:58 +00:00
Olivier Chafik
b94982cc35
fix[examples/transcript]: fix transitional deltas (#275)
* fix transcript deltas

* Update mcp-app.css
2026-01-15 12:06:02 +00:00
Anton Pidkuiko MacBook
489d28b6da
fix: increase webServer timeout for uv dependency download
uv needs extra time on first run to download Python dependencies
2026-01-15 11:53:27 +00:00
Copilot
c73d36343b
fix: change unknown source message log from error to debug level (#239)
* Initial plan

* Change console.error to console.debug for unknown message sources

Co-authored-by: liady <7003853+liady@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: liady <7003853+liady@users.noreply.github.com>
2026-01-15 11:51:27 +00:00
Anton Pidkuiko
dbc7a41550
Merge pull request #274 from matteo8p/use-tool-type-from-official-sdk
Use `Tool` as the input type in `getToolUiResourceUri`
2026-01-15 11:45:46 +00:00
Anton Pidkuiko MacBook
656a0292ae
feat: add QR Code to README gallery + rename to QR Code Server
- Add grid-cell.png screenshot for README gallery
- Rename 'QR Server' to 'QR Code Server' everywhere
- Add QR Code (Python) entry to examples table in README
2026-01-15 11:36:21 +00:00
Jerome
65a62a9fae
feat: compile example servers to JavaScript for npm consumption (#259)
* feat: compile example servers to JavaScript for npm consumption

Add TypeScript compilation for server code so the example packages can be
imported and used by consumers without requiring TypeScript compilation.

Changes:
- Add tsconfig.server.json to each example for compiling server code
- Update package.json exports to point to compiled dist/server/server.js
- Add types field pointing to dist/server/server.d.ts
- Update build scripts to include server compilation step
- Fix .ts import extensions to .js in customer-segmentation-server

This enables importing the createServer function from published packages:
  import { createServer } from '@modelcontextprotocol/server-basic-react';

* fix: add type assertion for Nominatim API response

* chore: regenerate schemas

* refactor: split server examples into library and binary entry points

- server.ts: exports createServer() only (library entry point)
- main.ts: entry point with main() that runs the server (binary)
- package.json: adds bin field for npx support, uses inline bun build
- tsconfig.server.json: emitDeclarationOnly, outputs to dist/

This allows:
1. Importing the server as a library: import { createServer } from '@modelcontextprotocol/server-basic-react'
2. Running with npx: npx @modelcontextprotocol/server-basic-react [--stdio]

Added migration script at scripts/migrate-server-examples.ts

* refactor: migrate remaining server examples to library/binary structure

Apply the same refactoring to all 13 remaining server examples:
- scenario-modeler-server, shadertoy-server, map-server
- cohort-heatmap-server, customer-segmentation-server, video-resource-server
- system-monitor-server, budget-allocator-server, sheet-music-server
- threejs-server, integration-server, transcript-server, wiki-explorer-server

Each now has:
- server.ts: exports createServer() (library)
- main.ts: runs the server (binary with shebang)
- bin field in package.json for npx support

* chore: remove unused server-utils.ts from video-resource-server/src

* update

* fix(build): make Windows-compatible by removing chmod and fixing bun externals

- Remove 'chmod +x dist/index.js' which doesn't exist on Windows
- Add '--external ./server.js' to prevent bun from treating the import as a second entry point

* fix(build): use .ts import for bun compatibility

- Change import from './server.js' to './server.ts' in main.ts files
- Remove --external flag since bun should inline everything
- Fixes Windows build where bun couldn't resolve .js to .ts properly

* fix(build): use --external for Windows bun compatibility

Bun on Windows incorrectly treats imported .ts files as entry points.
Use --external './server.js' to work around this, creating a runtime
dependency between index.js and server.js.

* style: fix prettier formatting in pdf-server/main.ts

* fix(build): remove quotes from --external for Windows cmd.exe compatibility

* fix(build): use glob pattern for --external to work on all platforms

The literal path --external ./server.js was not matching the import.
Using glob pattern --external "./server*" correctly externalizes the server module.

* fix(build): use */server.js pattern for --external

The "./server*" pattern was not matching on Windows.
Using "*/server.js" matches any path ending in /server.js which works cross-platform.

* fix(build): use *server.js pattern without slash for Windows compatibility

* update package-lock

* chore: regenerate package-lock.json for cross-platform compatibility

* fix(build): use ./server.js instead of glob pattern for Windows compatibility

* fix(build): use double quotes for banner to fix Windows cmd.exe compatibility

---------

Co-authored-by: Olivier Chafik <ochafik@anthropic.com>
2026-01-14 23:46:17 +00:00
Olivier Chafik
75cbf8612c
feat(basic-host): URL params, fullscreen mode, unified layout (#266)
* basic-host: handle containerDimensions

* feat(basic-host): Unified tool call layout with shared collapsible panels

* snapshots

* format
2026-01-14 22:09:41 +00:00
Olivier Chafik
75ecd62384
fix(examples): improve updateModelContext with structured YAML frontmatter (#271)
* map-server: fix async/await in ontoolresult, remove unused getViewStorageKey

* fix(map-server): improve updateModelContext and fix initialization

- Use structured YAML frontmatter format for model context (like pdf-server)
- Add tool name, altitude, and cleaner data format
- Fix initialization deadlock: app.connect() was inside ontoolresult handler
  which could never fire until connected
- Fix view state persistence: widgetUUID now properly extracted from
  ontoolresult and used to restore persisted camera position
- Server now includes widgetUUID in tool result _meta for widget identification

* fix(pdf-server): use widgetUUID for page persistence

- Add widgetUUID to tool result _meta for widget identification
- Use widgetUUID instead of generated key (pdfUrl+toolId) for localStorage
- Enables reliable page restoration when revisiting PDF widgets

* fix(transcript-server): use structured YAML frontmatter for model context

- Add tool name, listening status, and unsent entry count in frontmatter
- Consistent format with pdf-server and map-server

* update names

* drop bogus altitude

* Update mcp-app.ts
2026-01-14 22:08:09 +00:00
Matthew Wang
5bb0c6b4c7 Use as the input type in 2026-01-14 13:07:08 -08:00
Anton Pidkuiko MacBook
2ee15420a0
fix: add default text value for QR code generation
Without a default, the test would fail since text is required.
Uses modelcontextprotocol.io as the default URL.
2026-01-14 20:41:19 +00:00
Anton Pidkuiko MacBook
0927445025
feat(qr-server): migrate to uv with PEP 723 inline dependencies
- Replace requirements.txt with inline script dependencies in server.py
- Add package.json with npm scripts for run-all.ts integration
- Update CI workflow to install uv via astral-sh/setup-uv@v5
- Update Docker commands to install uv for e2e tests
- Add Playwright golden screenshot for qr-server
- Update README with uv installation and usage instructions
2026-01-14 20:27:35 +00:00
Olivier Chafik
db1b48552b
examples[pdf]: limit context length (#270)
* feat(pdf-server): Interactive PDF viewer example

PDF viewer with PDF.js featuring:
- Chunked binary loading with progress bar
- Text extraction for AI context
- arXiv paper support (fetch by ID)
- Page navigation with keyboard shortcuts
- Zoom controls (including Ctrl+0 reset)
- Fullscreen mode support
- Horizontal swipe for page changes (disabled when zoomed)
- Page persistence in localStorage
- Text selection via PDF.js TextLayer
- Clickable title link to source URL
- Rounded corners and subtle border styling

* chore: Add pdf-server to screenshot generation list

* refactor(pdf-server): Simplify and generalize PDF loading

- Accept any HTTP(s) URLs instead of ArXiv-only
- Use HTTP Range requests for chunked binary loading
- Remove ArXiv-specific code (arxiv.ts, metadata fetching)
- Remove CLAUDE.md index generation
- Flatten hierarchical folder structure to simple entries list
- Remove dead code: getPdfSummary, httpFileSizes
- Simplify base64 encoding using Buffer
- Simplify chunk extraction using slice()
- Consolidate DEFAULT_PDF_URL constant

The server now works with any PDF URL, not just arXiv papers.
HTTP Range requests stream chunks on-demand when supported.

* feat(pdf-server): Include title and selection in model context

- Add pdfTitle to updateModelContext structuredContent
- Include selection position (text, start, end) when text is selected
- Add debounced selectionchange listener to update context on selection

* fix(pdf-server): Restore default URL in view_pdf schema

The UI needs the default value in the schema to show it properly.

* refactor(pdf-server): Further simplifications

- Remove hard-coded test paths from main()
- Remove unused resources: pdfs://metadata/{pdfId}, pdfs://content/{pdfId}
- Remove unused metadata fields: subject, creator, producer, creationDate, modDate
- Remove unused entry fields: relativePath, estimatedTextSize
- Remove filterEntriesByFolder and folder filter from list_pdfs
- Remove redundant output schema validation (trust typed returns)
- Simplify scanDirectory and createLocalEntry signatures

Total: 1836 → 1666 lines (-170 lines, -9%)

* refactor(pdf-server): Major simplification for didactic focus

Simplified the example to focus on key MCP Apps SDK patterns:
- Chunked data through size-limited tool calls
- Model context updates (page text + selection)
- Display modes (fullscreen vs inline)
- External links (openLink)

Changes:
- Remove local file support (HTTP URLs only)
- Restrict dynamic URLs to arxiv.org for security
- Simplify types: url instead of sourcePath/sourceType
- Simplify indexer: 168 → 44 lines
- Simplify loader: 318 → 171 lines
- Simplify server: 337 → 233 lines
- Fix selection text normalization
- Rewrite README with didactic focus

Total: 1836 → 1236 lines (-33%)

* feat(pdf-server): Add file:// URL support for local files

- Local paths are converted to file:// URLs on startup
- file:// URLs must be in the initial list (strict validation)
- Dynamic URLs still restricted to arxiv.org only
- Updated README with local file examples

* fix(pdf-server): Improve selection detection with logging

- Add logging to selectionchange handler to verify it fires
- Add fallback matching without spaces (TextLayer spans may lack spaces)
- Log selection detection success/failure for debugging

The issue: PDF.js TextLayer renders text as positioned spans without
space characters between them. When selecting across spans:
- pageText has spaces (items joined with ' ')
- sel.toString() may not have spaces
- indexOf fails to match

The fix tries exact match first, then falls back to spaceless matching.

* feat(pdf-server): Format model context as markdown with front matter

Model context now looks like:
```markdown
---
url: https://arxiv.org/pdf/...
page: 5/144
---

Page text with <pdf-selection>selected text</pdf-selection> inline.
```

This is cleaner for the model to parse and includes the source URL.

* refactor(pdf-server): Extract smart truncation helpers

Added two well-designed helpers:

formatPageContent(text, maxLength, selection?)
- Centers truncation window around selection if present
- Adds <truncated-content/> markers at elision points
- Wraps selection in <pdf-selection> tags
- Allocates 60% context before, 40% after for readability

findSelectionInText(pageText, selectedText)
- Tries exact match first
- Falls back to spaceless match for TextLayer quirks
- Returns { start, end } or undefined

Example output with selection:
```
<truncated-content/>
...context before... <pdf-selection>selected text</pdf-selection> ...context after...
<truncated-content/>
```

* fix(pdf-server): Truncate inside selection tags when selection too long

When selection is too large for the budget:
<truncated-content/><pdf-selection><truncated-content/>start...end<truncated-content/></pdf-selection><truncated-content/>

This keeps the selection structure intact while showing beginning and end.

* refactor(pdf-server): Remove unused read_pdf_text, use Attention paper as default

- Remove read_pdf_text tool (viewer extracts text client-side with pdfjs)
- Remove PdfTextChunk and ReadPdfTextInput types
- Remove loadPdfTextChunk from pdf-loader
- Change default PDF to 'Attention Is All You Need' (1706.03762)
- Update README with modest language

* refactor(pdf-server): Simplify to use URL as ID, rename view_pdf to display_pdf

Major simplifications:
- Use URL directly as identifier (no hashing)
- Remove displayName - show elided URL with full URL as tooltip
- Rename view_pdf to display_pdf with better description
- Update all references from pdfId to url
- Simplify storage key and model context

The tool description now explains it displays an interactive viewer in the chat.

* feat(pdf-server): Normalize arxiv URLs to PDF format

arxiv.org/abs/... -> arxiv.org/pdf/...

Applied both at startup and when loading dynamic URLs.

* docs(pdf-server): Add prompt engineering to display_pdf description

* fix(pdf-server): Sharp rendering on retina displays

Account for devicePixelRatio when rendering canvas:
- Scale canvas dimensions by dpr
- Scale context by dpr
- Keep CSS size at logical pixels

* fix(pdf-server): Normalize arxiv URLs in read_pdf_bytes too

* add to e2e spec

* add to e2e spec

* add to e2e spec

* add to e2e spec

* regen

* chore: regenerate package-lock.json and fix hono vulnerability

* docs: add pdf-server screenshot to READMEs

* regen

* ci: add missing examples to pkg-pr-new publish

* ci: add pdf-server to npm publish examples

* Update README.md

* pdf-server: improve tool response text for better model context

* revert unrelated screenshot changes

* pdf-server: dynamically add arxiv URLs in read_pdf_bytes

Fixes 'PDF not found' error when server restarts between display_pdf
(which adds the entry) and read_pdf_bytes (which previously only looked
up existing entries). Now read_pdf_bytes mirrors display_pdf's logic
and dynamically adds arxiv URLs to the index.

* cap length of context update in pdf-server

* format
2026-01-14 15:26:25 +00:00
Olivier Chafik
96daa46a1d
examples: add PDF viewer w/ chunked data loading, full-screen, model context updates, private tool (#267)
* feat(pdf-server): Interactive PDF viewer example

PDF viewer with PDF.js featuring:
- Chunked binary loading with progress bar
- Text extraction for AI context
- arXiv paper support (fetch by ID)
- Page navigation with keyboard shortcuts
- Zoom controls (including Ctrl+0 reset)
- Fullscreen mode support
- Horizontal swipe for page changes (disabled when zoomed)
- Page persistence in localStorage
- Text selection via PDF.js TextLayer
- Clickable title link to source URL
- Rounded corners and subtle border styling

* chore: Add pdf-server to screenshot generation list

* refactor(pdf-server): Simplify and generalize PDF loading

- Accept any HTTP(s) URLs instead of ArXiv-only
- Use HTTP Range requests for chunked binary loading
- Remove ArXiv-specific code (arxiv.ts, metadata fetching)
- Remove CLAUDE.md index generation
- Flatten hierarchical folder structure to simple entries list
- Remove dead code: getPdfSummary, httpFileSizes
- Simplify base64 encoding using Buffer
- Simplify chunk extraction using slice()
- Consolidate DEFAULT_PDF_URL constant

The server now works with any PDF URL, not just arXiv papers.
HTTP Range requests stream chunks on-demand when supported.

* feat(pdf-server): Include title and selection in model context

- Add pdfTitle to updateModelContext structuredContent
- Include selection position (text, start, end) when text is selected
- Add debounced selectionchange listener to update context on selection

* fix(pdf-server): Restore default URL in view_pdf schema

The UI needs the default value in the schema to show it properly.

* refactor(pdf-server): Further simplifications

- Remove hard-coded test paths from main()
- Remove unused resources: pdfs://metadata/{pdfId}, pdfs://content/{pdfId}
- Remove unused metadata fields: subject, creator, producer, creationDate, modDate
- Remove unused entry fields: relativePath, estimatedTextSize
- Remove filterEntriesByFolder and folder filter from list_pdfs
- Remove redundant output schema validation (trust typed returns)
- Simplify scanDirectory and createLocalEntry signatures

Total: 1836 → 1666 lines (-170 lines, -9%)

* refactor(pdf-server): Major simplification for didactic focus

Simplified the example to focus on key MCP Apps SDK patterns:
- Chunked data through size-limited tool calls
- Model context updates (page text + selection)
- Display modes (fullscreen vs inline)
- External links (openLink)

Changes:
- Remove local file support (HTTP URLs only)
- Restrict dynamic URLs to arxiv.org for security
- Simplify types: url instead of sourcePath/sourceType
- Simplify indexer: 168 → 44 lines
- Simplify loader: 318 → 171 lines
- Simplify server: 337 → 233 lines
- Fix selection text normalization
- Rewrite README with didactic focus

Total: 1836 → 1236 lines (-33%)

* feat(pdf-server): Add file:// URL support for local files

- Local paths are converted to file:// URLs on startup
- file:// URLs must be in the initial list (strict validation)
- Dynamic URLs still restricted to arxiv.org only
- Updated README with local file examples

* fix(pdf-server): Improve selection detection with logging

- Add logging to selectionchange handler to verify it fires
- Add fallback matching without spaces (TextLayer spans may lack spaces)
- Log selection detection success/failure for debugging

The issue: PDF.js TextLayer renders text as positioned spans without
space characters between them. When selecting across spans:
- pageText has spaces (items joined with ' ')
- sel.toString() may not have spaces
- indexOf fails to match

The fix tries exact match first, then falls back to spaceless matching.

* feat(pdf-server): Format model context as markdown with front matter

Model context now looks like:
```markdown
---
url: https://arxiv.org/pdf/...
page: 5/144
---

Page text with <pdf-selection>selected text</pdf-selection> inline.
```

This is cleaner for the model to parse and includes the source URL.

* refactor(pdf-server): Extract smart truncation helpers

Added two well-designed helpers:

formatPageContent(text, maxLength, selection?)
- Centers truncation window around selection if present
- Adds <truncated-content/> markers at elision points
- Wraps selection in <pdf-selection> tags
- Allocates 60% context before, 40% after for readability

findSelectionInText(pageText, selectedText)
- Tries exact match first
- Falls back to spaceless match for TextLayer quirks
- Returns { start, end } or undefined

Example output with selection:
```
<truncated-content/>
...context before... <pdf-selection>selected text</pdf-selection> ...context after...
<truncated-content/>
```

* fix(pdf-server): Truncate inside selection tags when selection too long

When selection is too large for the budget:
<truncated-content/><pdf-selection><truncated-content/>start...end<truncated-content/></pdf-selection><truncated-content/>

This keeps the selection structure intact while showing beginning and end.

* refactor(pdf-server): Remove unused read_pdf_text, use Attention paper as default

- Remove read_pdf_text tool (viewer extracts text client-side with pdfjs)
- Remove PdfTextChunk and ReadPdfTextInput types
- Remove loadPdfTextChunk from pdf-loader
- Change default PDF to 'Attention Is All You Need' (1706.03762)
- Update README with modest language

* refactor(pdf-server): Simplify to use URL as ID, rename view_pdf to display_pdf

Major simplifications:
- Use URL directly as identifier (no hashing)
- Remove displayName - show elided URL with full URL as tooltip
- Rename view_pdf to display_pdf with better description
- Update all references from pdfId to url
- Simplify storage key and model context

The tool description now explains it displays an interactive viewer in the chat.

* feat(pdf-server): Normalize arxiv URLs to PDF format

arxiv.org/abs/... -> arxiv.org/pdf/...

Applied both at startup and when loading dynamic URLs.

* docs(pdf-server): Add prompt engineering to display_pdf description

* fix(pdf-server): Sharp rendering on retina displays

Account for devicePixelRatio when rendering canvas:
- Scale canvas dimensions by dpr
- Scale context by dpr
- Keep CSS size at logical pixels

* fix(pdf-server): Normalize arxiv URLs in read_pdf_bytes too

* add to e2e spec

* add to e2e spec

* add to e2e spec

* add to e2e spec

* regen

* chore: regenerate package-lock.json and fix hono vulnerability

* docs: add pdf-server screenshot to READMEs

* regen

* ci: add missing examples to pkg-pr-new publish

* ci: add pdf-server to npm publish examples

* Update README.md

* pdf-server: improve tool response text for better model context

* revert unrelated screenshot changes

* pdf-server: dynamically add arxiv URLs in read_pdf_bytes

Fixes 'PDF not found' error when server restarts between display_pdf
(which adds the entry) and read_pdf_bytes (which previously only looked
up existing entries). Now read_pdf_bytes mirrors display_pdf's logic
and dynamically adds arxiv URLs to the index.
2026-01-14 14:25:24 +00:00
Jonathan Hefner
63b05b4fdd
Merge pull request #252 from jonathanhefner/update-examples-for-skill
Improve consistency and organization of examples for AI learning
2026-01-13 20:55:40 -06:00
Jonathan Hefner
4140565b77 Improve consistency and organization of examples for AI learning
- Add `.gitignore` files to all 19 examples (`node_modules/`, `dist/`)
- Replace custom `log` objects with standard `console` methods
- Add `ontoolcancelled` handler to all `basic-server-*` examples
- Add host styling integration (`applyDocumentTheme`, `applyHostFonts`,
  `applyHostStyleVariables`) to non-React `basic-server-*` examples
- Add section headers for better code organization in feature examples
- Update READMEs with Build System section explaining single-file
  bundling

These changes make examples more consistent and easier to adapt.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-13 20:48:02 -06:00
Jonathan Hefner
6166242136
Add Claude Code plugin with "Create MCP App" skill (#256)
Add a Claude Code plugin (`plugins/mcp-apps/`) for distribution via the
plugin marketplace. The plugin provides the "Create MCP App" skill that
guides the agent through building MCP Apps with interactive UIs.

The skill includes:
- Instructions to clone SDK repo for reference templates
- Framework selection guidance (React, Vanilla JS, Vue, Svelte, etc.)
- Tool visibility configuration (`_meta.ui.visibility`)
- Host styling integration patterns
- Testing workflow using `basic-host`
- Common mistakes to avoid

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-14 00:50:18 +00:00
Ido Salomon
969b905c10
disambiguate resource in csp sample (#257)
* disambiguate resource in csp sample

Clarified comment on CSP extraction from resource metadata.

* Update specification/draft/apps.mdx

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2026-01-14 00:49:40 +00:00
adam jones
aa6775485d
chore: update licensing to Apache 2.0 for new contributions (#251) 2026-01-14 00:42:13 +00:00
Jonathan Hefner
d48e35d88a
Improve JSDoc comments with cross-references and clarifications (#254)
Key improvements:
- Add `{@link}` cross-references throughout the codebase to make API
  documentation navigable and help AI models understand relationships
- Use `{@link module!Export}` syntax for cross-module references
- Add backticks for inline code formatting (`ResizeObserver`, `App`, etc)
- Fix `PostMessageTransport` examples to show required two-argument form
- Clarify `onteardown` callback return type requirement
- Document React hooks cleanup behavior and Strict Mode considerations
- Add tool visibility example for `registerAppTool`
- Add CSP example for `registerAppResource`
- Fix notification direction documentation in `spec.types.ts`

TypeDoc config migrated from `typedoc.json` to `typedoc.config.mjs` to:
- Support custom `@description` block tag
- Add `intentionallyNotExported` for internal types
- Include `src/server/index.ts` entry point

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-14 00:41:17 +00:00
Jonathan Hefner
978d8e6fff
Merge pull request #263 from jonathanhefner/oai-migration-doc-server-side-section
Add "Server-Side" section to OpenAI migration guide
2026-01-13 17:49:28 -06:00
dependabot[bot]
631090f41e
build(deps): bump hono in the npm_and_yarn group across 1 directory (#268)
Bumps the npm_and_yarn group with 1 update in the / directory: [hono](https://github.com/honojs/hono).


Updates `hono` from 4.11.3 to 4.11.4
- [Release notes](https://github.com/honojs/hono/releases)
- [Commits](https://github.com/honojs/hono/compare/v4.11.3...v4.11.4)

---
updated-dependencies:
- dependency-name: hono
  dependency-version: 4.11.4
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2026-01-13 23:47:06 +00:00
Jonathan Hefner
b231396d2b Add "Server-Side" section to OpenAI migration guide
Add "Server-Side" migration documentation covering:
- Tool metadata mapping (`_meta["openai/..."]` → `_meta.ui.*`)
- Resource metadata (CSP, permissions, domain, border preferences)
- Resource MIME type (`text/html+skybridge` → `text/html;profile=mcp-app`)
- Before/after code examples using `registerAppTool()` and
  `registerAppResource()`
- Key differences summary including not-yet-implemented features

Reorganize existing client-side content under updated heading structure.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-13 15:18:05 -06:00
Olivier Chafik
152b953ae6
docs: how to migrate from openai apps (#260)
* Create migrate_from_openai_apps.md

* Update AGENTS.md

* Update docs/migrate_from_openai_apps.md

Co-authored-by: Jonathan Hefner <jonathan@hefner.pro>

* address PR review comments

- Remove AGENTS.md reference to migration guide
- Add note that OpenAITransport is not yet available (PR #172)
- Remove unnecessary note about return type ordering

---------

Co-authored-by: Jonathan Hefner <jonathan@hefner.pro>
2026-01-13 15:23:26 +00:00
Olivier Chafik
574a768e09
feat: add example gallery with auto-generated screenshots (#253)
* 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 \![Screenshot](screenshot.png) 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
2026-01-13 15:12:18 +00:00
Olivier Chafik
8fa2961ffc
basic-host: filter app-only tools, prioritize UI tools (#262)
* basic-host: filter non-ui tools

* basic-host: filter app-only tools, prioritize UI tools

- Filter out tools with visibility: ['app'] from host tool list
- Sort tools to show UI-enabled tools first, then alphabetically
- Add local isToolVisibleToModel helper in basic-host
2026-01-13 15:05:12 +00:00
Olivier Chafik
bd892b6ce4
revert to document.write again; cesiumjs doesn't like srcdoc, period. (#258)
* revert to document.write again; cesiumjs doesn't like srcdoc, period.

* Update server.ts
2026-01-13 02:32:07 +00:00
Olivier Chafik
231f23fd72
chore: release 0.4.0 (#249) v0.4.0
* chore: release 0.4.0

* chore: add new examples to npm publish workflow

Add map-server, shadertoy-server, and transcript-server to the
publish-examples matrix.
2026-01-12 22:40:24 +00:00
Olivier Chafik
ba550f1aeb
fix: follow-up to PR #234 (remove accidental file, revert from document.write to equiv. srcdoc) (#248)
* chore: remove tamper-detection.ts (not meant to be submitted)

Follow-up to PR #234. This file was accidentally included.

* revert to srcdoc

Follow-up to PR #234 per domfarolino's review feedback.

* regen

* regen
2026-01-12 22:19:31 +00:00
Olivier Chafik
9a9ecf27d4
feat(examples): add --watch to bun serve commands for auto-restart, and have npm start hit dev mode of all examples (#246)
* feat(examples): add --watch to bun serve commands for auto-restart on file changes

* Update package.json

* regen
2026-01-12 22:17:12 +00:00
Olivier Chafik
6bb63c3bae
examples: add transcript-server example with live speech transcription (#240)
* feat: add transcript-server example with live speech transcription

- New example: transcript-server with Web Speech API transcription
  - Start/stop recording with timer display
  - Live transcript with interim results
  - Send button to send transcript as ui/message to host
  - Copy button to copy full transcript
  - Sent messages marked with divider, greyed out
  - Experimental ui/update-model-context for live context updates
  - Transparent background, respects host theme

- Enable microphone and clipboard in basic-host sandbox iframes
  - Add allow="microphone; clipboard-write" to both outer and inner iframes
  - Required for Web Speech API, audio capture, and clipboard access

- Add alert popup in basic-host for ui/message from apps

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* style: format transcript-server files

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* test: add e2e test and golden for transcript-server

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* refactor: use @types/dom-speech-recognition instead of hand-rolled types

Removes ~50 lines of manually defined Web Speech API types in favor of
the community-maintained type package.

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: add newlines between transcript chunks when copying to clipboard

* refactor: unify transcript formatting with timestamps

- Add formatEntry() helper that includes [timestamp] prefix
- Add formatEntries() helper that joins entries with newlines
- Use same format for clipboard copy, send message, and model context
- DRY up duplicate code in send button handler

* fix: log model context update failures instead of silently swallowing

* fix: log model context updates for debugging

* refactor: pass permissions through loadSandboxProxy like csp

- Add permissions parameter to loadSandboxProxy in implementation.ts
- Build iframe allow attribute from permissions instead of hardcoding
- Update sandbox.ts to not hardcode allow attribute (set via notification)
- Add microphone + clipboardWrite permissions to transcript-server resource
- Update README to reflect permission configuration via resource _meta.ui

* fix(transcript-server): auto-expand instead of scroll

- Remove min-height: 100vh and overflow-y: auto
- Let content grow naturally with autoResize (default)
- Remove unnecessary scrollTop calls

* test: remove transcript timer mask (no longer dynamic)

* refactor: pass permissions through loadSandboxProxy like csp

* docs: document updateModelContext for transitional speech

* test: update e2e screenshots

* refactor: use app.updateModelContext() instead of raw request

* package-lock.json

* src/generated/schema.json

* test: update e2e screenshots from CI

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-12 21:27:31 +00:00
Olivier Chafik
53142efd2d
refactor(map): use app.updateModelContext() instead of adhoc request (#245)
* feat(map): add keyboard shortcuts for fullscreen control

- Escape: exit fullscreen when in fullscreen mode
- Ctrl/Cmd+Enter: toggle fullscreen from any mode

* feat(map): persist view state to localStorage

- Save camera position/orientation on moveEnd (debounced 500ms)
- Restore persisted view when no explicit tool input is received
- Key by toolInfo.id (tool invocation ID) - localStorage is per-conversation
- Tool input (explicit bbox) takes precedence over persisted state

* refactor(map): use app.updateModelContext() instead of adhoc request
2026-01-12 20:47:07 +00:00
Anton Pidkuiko
9fcee5b5a6
Merge pull request #247 from modelcontextprotocol/fix/qr-server-sdk-version
fix(qr-server): Update SDK to 0.3.1 with app-with-deps bundle
2026-01-12 20:41:02 +00:00
Anton Pidkuiko MacBook
6b6c5ce63f
fix(qr-server): Update SDK to 0.3.1 with app-with-deps bundle
- Use app-with-deps export for CDN imports (includes all dependencies)
- Fixes widget crash on Claude Desktop/Nest
2026-01-12 20:09:10 +00:00
Jonathan Hefner
b6fc151094
Add {AGENTS,CLAUDE}.md for AI assistant guidance (#218)
Provides context about this repository including:

- Common commands for building, testing, and running examples
- SDK entry points and their purposes
- Communication flow between Guest UI, Host, and MCP Server
- Key source files and their responsibilities
- Protocol lifecycle from initialization to teardown
- Type generation workflow

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-12 19:54:24 +00:00
Olivier Chafik
741b1d3925
feat(basic-host): improve host UI with collapsible panels and SDK types (#244)
* refactor(basic-host): use SDK types for ModelContext and AppMessage

- Import McpUiUpdateModelContextRequest and McpUiMessageRequest from SDK
- Replace custom ModelContext with McpUiUpdateModelContextRequest['params']
- Replace custom AppMessage with McpUiMessageRequest['params']
- Pass full message params instead of extracting text
- Format messages by extracting text from content blocks in display

* feat(basic-host): handle non-text content blocks in display

- Add formatContentBlock helper for text, image, audio, resource types
- Show placeholders like <image: image/png> for non-text content
- Apply to both messages and model context display

* test: update shadertoy screenshot

* test: update screenshots from CI (linux x64)
2026-01-12 19:42:11 +00:00
Jonathan Hefner
e29523c113
Merge pull request #217 from jonathanhefner/examples-replace-resource_uri_meta_key
Replace deprecated `RESOURCE_URI_META_KEY` with `_meta.ui.resourceUri`
2026-01-12 13:07:44 -06:00
Jonathan Hefner
94bc708963 Replace deprecated RESOURCE_URI_META_KEY with _meta.ui.resourceUri
Update all example servers to use the new recommended metadata format
for associating UI resources with tools. The old `RESOURCE_URI_META_KEY`
constant is deprecated in favor of the nested `_meta.ui.resourceUri`
structure.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-12 13:00:11 -06:00
Jonathan Hefner
7f1c9c0dde
Merge pull request #155 from jonathanhefner/update-quickstart-guide
Update quickstart guide
2026-01-12 12:58:53 -06:00
Jonathan Hefner
093faa9a0d
Merge pull request #209 from jonathanhefner/readme-how-it-works
Add "How It Works" section to README
2026-01-12 12:58:41 -06:00
Jonathan Hefner
dadbb6ac3d
Merge pull request #212 from jonathanhefner/video-resource-server-safeareainsets
Support `safeAreaInsets` + type-checking in video-resource-server
2026-01-12 12:58:28 -06:00
Jonathan Hefner
6d2d4b22b6
Merge pull request #227 from jonathanhefner/system-monitor-refresh-stats-tool
Add missing `refresh-stats` tool to `system-monitor-server`
2026-01-12 12:58:03 -06:00
Jonathan Hefner
6e4eb32d1e
Merge pull request #228 from jonathanhefner/restore-182
Restore educational comments in `basic-server-*` examples
2026-01-12 12:57:47 -06:00
Jonathan Hefner
ec3409aa91
Add shadertoy-server example for WebGL shader rendering (#226)
Introduces a new MCP App example that renders ShaderToy-compatible GLSL
fragment shaders in real-time using WebGL 2.0 and ShaderToyLite.js.

Features:
- Standard ShaderToy uniforms (`iTime`, `iResolution`, `iMouse`, etc.)
- Multi-pass rendering with buffers A-D for feedback effects
- Shader compilation error overlay

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-12 18:26:02 +00:00
Jonathan Hefner
8b8ecbea64 Restore educational comments in basic-server-* examples
PR #184 accidentally removed/reverted educational comments from
`basic-server-react` and `basic-server-vanillajs` that were established
in PR #182. This restores consistency with the other basic-server
examples (Vue, Svelte, Preact, Solid).

Changes:
- Add back the three-comment pattern explaining two-part registration
- Restore full tool description ("as an ISO 8601 string")
- Change vanillajs to return plain text instead of JSON (matching #182)
- Use local `resourceUri` variable instead of top-level constant

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-12 11:57:46 -06:00