* feat: make generated Zod schemas version-agnostic (v3.25+/v4)
- Change generated schema imports from `zod/v4` to standard `zod`
- Replace v4-only `z.looseObject()` with `z.object().passthrough()`
- Works with both Zod v3.25+ and v4, matching MCP TS SDK approach
- Bump version to 0.2.2
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* chore: regenerate package-lock.json in Docker
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---------
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* fix: widen @oven/bun-* version range to improve install compatibility
Lower the minimum version of @oven/bun-* optional dependencies from
^1.3.4 to ^1.2.21. This is the lowest common version available across
all platform-specific packages, improving compatibility for contributors
who may not have access to the latest package versions.
The caret range (^) still allows npm to install newer versions when
available.
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* chore: bump version to 0.2.1
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---------
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Move react and react-dom from dependencies to peerDependencies with
support for React 17, 18, and 19. This allows consumers to use their
preferred React version instead of forcing v19.
- Added peerDependencies for react/react-dom (^17 || ^18 || ^19)
- Marked react dependencies as optional in peerDependenciesMeta
- Moved react/react-dom to devDependencies for local development
- React is already externalized in the build (build.bun.ts)
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Co-authored-by: Claude <noreply@anthropic.com>
* fix: Windows compatibility for npm scripts and cross-platform CI
Fixes#142 - Windows PowerShell install bug
Changes:
- Replace single quotes with escaped double quotes in generate:schemas
(cmd.exe passes single quotes literally, breaking prettier glob matching)
- Simplify prettier scripts: remove redundant --ignore-path flags
(prettier auto-loads .gitignore and .prettierignore by default)
- Remove $(pwd) from prettier scripts (bash-only syntax)
- Add cross-platform CI matrix: Linux x64, Windows x64, macOS ARM64, macOS x64
- Use shell: bash for grep commands in CI (not available in Windows cmd.exe)
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: remove bun npm package from all workspaces
The bun npm package tries to install platform-specific binaries which
fails on Windows CI. Since bun is installed via oven-sh/setup-bun action
in CI (and developers install it globally), we don't need the npm package.
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: skip examples:build on Windows (uses Unix-only INPUT=... syntax)
The examples use `INPUT=mcp-app.html vite build` which is bash syntax
for setting environment variables. This doesn't work on Windows cmd.exe.
Since examples aren't published to npm, we can skip building them on Windows.
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: force LF line endings for cross-platform prettier consistency
Git on Windows auto-converts line endings to CRLF, causing prettier to
report formatting issues. Force LF for all text files.
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Co-Authored-By: Claude <noreply@anthropic.com>
* ci: add test for git-based npm install (cross-platform)
This verifies that `npm install git+https://...` works on all platforms,
which triggers the prepare script and requires bun to be available.
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* ci: add Linux ARM64 and Windows ARM64 to CI matrix
- Added ubuntu-24.04-arm (Linux ARM64)
- Added windows-11-arm (Windows ARM64)
Note: WSL is not available on GitHub-hosted runners (requires nested
virtualization which isn't supported).
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* ci: disable Windows ARM64 (Bun lacks stable ARM64 binaries)
The oven-sh/setup-bun action fails with 404 when trying to download
Bun for Windows ARM64. Re-enable when Bun adds proper support.
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* ci: add Windows WSL build test
Uses Vampire/setup-wsl action to install Ubuntu-24.04 in WSL and run
the full build/test cycle. This tests the Linux-in-Windows scenario
that was reported in issue #142.
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* ci: fix WSL build - install unzip for Bun installer
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* ci: add setup-bun to publish.yml workflow
The pkg-pr-new publish workflow was missing bun setup, causing
"bun: not found" errors during npm ci (which triggers prepare script).
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* ci: enable Windows ARM64 with x64-baseline Bun (via emulation)
Windows ARM64 can run x64 binaries via emulation. Use bun-download-url
to force x64-baseline build since native ARM64 Bun isn't available yet.
Reference: https://github.com/oven-sh/bun/issues/9824🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* ci: remove macOS x64 (macos-13 runner retired)
The macos-13 based runner images are now retired.
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* docs: add Bun installation instructions per platform
Documents that Bun is required for development, with platform-specific
install commands in collapsible sections.
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* docs: note Bun requirement in README examples section
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* feat: add bun as optional dependency (no global install required)
- Add @oven/bun-* platform packages as optionalDependencies
- Create postinstall script to set up bun binary from optional deps
- Handle Windows ARM64 by downloading x64-baseline for emulation
- Remove setup-bun from CI workflows (npm install handles it now)
- Remove manual Bun install instructions from docs
This alternative approach eliminates the need for global Bun installation
or setup-bun action in CI. npm install automatically installs the
platform-appropriate bun binary.
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Co-Authored-By: Claude <noreply@anthropic.com>
* chore: add debug logging to setup-bun script
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Co-Authored-By: Claude <noreply@anthropic.com>
* chore: force stdout flush in setup-bun for CI debugging
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Co-Authored-By: Claude <noreply@anthropic.com>
* chore: add more debugging to setup-bun
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Co-Authored-By: Claude <noreply@anthropic.com>
* chore: remove accidental test artifacts
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Co-Authored-By: Claude <noreply@anthropic.com>
* chore: run setup-bun in prepare script (before build)
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Co-Authored-By: Claude <noreply@anthropic.com>
* feat: use cross-env for Windows-compatible example builds
- Add cross-env to devDependencies
- Update all example package.json scripts to use cross-env for INPUT and NODE_ENV
- Enable examples:build on Windows in CI (no longer Unix-only)
- Add examples:build to WSL CI job
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Co-Authored-By: Claude <noreply@anthropic.com>
* chore: remove unused imports in setup-bun.mjs
Address github-code-quality bot comments.
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: use run-bun.mjs wrapper for prepare hook compatibility
During npm install's prepare hook, node_modules/.bin is not in PATH,
so calling 'bun' directly fails. The new run-bun.mjs wrapper finds
bun at node_modules/.bin/bun and runs it with the correct path.
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* ci: restore setup-bun action for build jobs
- Add setup-bun action to build and test-git-install jobs
- Disable Windows ARM64 (Bun doesn't support this platform)
- Add bun installation to WSL build
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: remove bun devDep, add libc detection for Linux ARM64
- Remove 'bun' from devDependencies (its postinstall fails on Windows ARM64)
- Add libc detection (glibc vs musl) to setup-bun.mjs
- Only try compatible binaries based on detected libc
- Re-enable Windows ARM64 in CI (now uses x64 emulation fallback)
- Remove setup-bun action from CI (no longer needed)
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* ci: simplify WSL build - let setup-bun.mjs handle bun installation
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---------
Co-authored-by: Claude <noreply@anthropic.com>
* Add Playwright E2E tests with screenshot golden testing
- Add E2E tests for all 8 MCP server examples
- Screenshot golden images for visual regression testing
- CI workflow for running E2E tests
- npm scripts: test:e2e, test:e2e:update, test:e2e:ui
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add default demo code for Three.js example
When no code is provided, show a rotating green cube demo.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add E2E testing documentation to CONTRIBUTING.md
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Co-Authored-By: Claude <noreply@anthropic.com>
* Update Three.js golden screenshot with 3D cube
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add explicit permissions to CI workflow
Set minimal read-only permissions for security best practices.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Fix test.setTimeout() to be inside describe blocks
Playwright requires setTimeout to be called within a test or describe block.
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* Simplify E2E tests - remove excessive timeouts
- Remove explicit setTimeout calls (default 30s is sufficient)
- Replace waitForTimeout(5000/6000) with proper waitForAppLoad()
- Wait for inner iframe visibility instead of fixed delays
- Keep only 500ms stabilization for screenshot animations
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* Auto-generate missing snapshots in CI
Use updateSnapshots: 'missing' in CI to handle cross-platform
screenshot differences (macOS vs Linux).
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Co-Authored-By: Claude <noreply@anthropic.com>
* Use platform-agnostic golden screenshots
- Remove -chromium-darwin suffix from snapshot filenames
- Configure snapshotPathTemplate for cross-platform compatibility
- Increase tolerance to 5% for rendering differences between platforms
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Co-Authored-By: Claude <noreply@anthropic.com>
* Refactor tests to use forEach instead of for-of loop
May help with Playwright test discovery issues in CI.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Use npm ci and list reporter in CI
- Use npm ci for exact package versions
- Use --reporter=list instead of html to avoid potential re-evaluation issues
- Only upload test-results on failure
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Co-Authored-By: Claude <noreply@anthropic.com>
* Exclude e2e tests from bun test
Run bun test only on src/ directory to avoid running Playwright tests
with Bun's test runner.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Fix prettier formatting
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add interaction tests for basic server apps
Test that clicking buttons in the MCP App triggers the corresponding
host callbacks:
- Send Message → host logs "Message from MCP App"
- Send Log → host logs "Log message from MCP App"
- Open Link → host logs "Open link request"
Tests both React and Vanilla JS implementations.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Mask dynamic content in E2E screenshot tests
Add Playwright mask option to handle servers with dynamic/random content:
- basic-react/vanillajs: mask server time display
- system-monitor: mask CPU chart, memory stats, uptime
- cohort-heatmap: mask heatmap grid (random data)
- customer-segmentation: mask scatter chart (random data)
This addresses PR feedback about handling examples with non-deterministic
output. Masking replaces the previous 10% tolerance with proper exclusion
of dynamic elements, allowing tighter 1% tolerance for the rest of the UI.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add wiki-explorer to E2E tests with default URL param
- Add default URL "https://en.wikipedia.org/wiki/Model_Context_Protocol" to
wiki-explorer-server's get-first-degree-links tool inputSchema
- Update basic-host to automatically populate input field with tool defaults
extracted from inputSchema.properties
- Add wiki-explorer-server to E2E test suite with dynamic masking for the
force-directed graph
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Co-Authored-By: Claude <noreply@anthropic.com>
* Use .default() for threejs tool schema instead of .optional()
This exposes the default code and height values in the JSON Schema,
allowing basic-host to auto-populate the input field with defaults.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Enable parallel E2E tests with timeouts and canvas masking
- Enable fullyParallel with 4 workers locally (2 in CI)
- Add 30s timeout per test
- Mask threejs canvas for stable screenshots
- Update snapshots to reflect default values in input fields
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* Add pre-commit check for private registry URLs in package-lock.json
Same check as in CI to catch issues before push.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Increase screenshot diff tolerance to 6% for cross-platform rendering
Font rendering differs between macOS and Linux, causing ~5% pixel differences.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Revert pre-commit artifactory check (moved to separate PR #133)
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* Format threejs server.ts
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Co-Authored-By: Claude <noreply@anthropic.com>
* Update CONTRIBUTING.md to reflect platform-agnostic screenshots
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix(e2e): use factory pattern for MCP servers to support parallel connections
McpServer only supports one transport at a time. When multiple browser
contexts connected in parallel, calling server.connect(transport) for
each session overwrote the previous transport's callbacks, causing
connection corruption and test timeouts.
Changes:
- server-utils.ts: accept factory function instead of single instance
- All 9 example servers: wrap server creation in createServer() function
- playwright.config.ts: re-enable parallel execution (4 workers)
- servers.spec.ts: add toBeEnabled wait for server connection
- Update screenshot baselines for basic-vanillajs and cohort-heatmap
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude <noreply@anthropic.com>
Interactive Wikipedia link graph visualization using force-graph with:
- Force-directed graph layout for exploring page connections
- Node expansion to reveal first-degree Wikipedia links
- Visual state tracking (blue=default, green=expanded, red=error)
- Direct browser access to Wikipedia pages
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Co-authored-by: Claude <noreply@anthropic.com>
* feat: add ts-to-zod schema generation from spec.types.ts
Add automated Zod schema generation using ts-to-zod:
- New npm script `generate:schemas` to regenerate schemas from spec.types.ts
- Post-processing script for Zod v4 compatibility and MCP SDK type imports
- src/spec.types.ts: Pure TypeScript interface definitions (source of truth)
- src/schemas.generated.ts: Auto-generated Zod schemas
- src/schemas.ts: Re-exports with PascalCase naming for backwards compatibility
The generated schemas provide a simpler alternative to the hand-written schemas
in types.ts, useful for lighter validation or reference implementations.
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: types.ts now re-exports from spec.types.ts and schemas.generated.ts
- types.ts imports and re-exports types from spec.types.ts (source of truth)
- types.ts imports and re-exports schemas from schemas.generated.ts
- Added compile-time VerifySchemaMatches checks to flag mismatches between
interfaces and generated schemas
- Removed redundant schemas.ts (types.ts now handles all re-exports)
- Applied prettier formatting to schemas.generated.ts
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: use ts-to-zod as library with integration tests
Replace CLI-based schema generation with library API:
- scripts/generate-schemas.ts: New script using ts-to-zod library API
- Detailed documentation of why each post-processing step is needed
- Generates integration tests via getIntegrationTestFile()
- Better error reporting and control
- src/schemas.generated.test.ts: Auto-generated integration tests
- Compile-time verification that schemas match TypeScript types
- Uses expectType<> pattern for bidirectional type checking
- Removed scripts/postprocess-schemas.ts (merged into generate-schemas.ts)
- Fixed McpUiResourceTeardownResult to include index signature for MCP SDK
Protocol compatibility (detected by the new integration tests)
Post-processing rationale (documented in generate-schemas.ts):
1. zod → zod/v4: Explicit v4 subpath for version clarity
2. z.any() → MCP SDK schemas: External types need real validation
3. z.record().and() → z.looseObject(): Index signatures need Zod v4 idiom
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Co-Authored-By: Claude <noreply@anthropic.com>
* feat: regenerate schemas during build + CI check
- build script now runs generate:schemas before bun build
- CI workflow verifies generated schemas are up-to-date
(fails if spec.types.ts changed but schemas weren't regenerated)
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: generate PascalCase schemas, move verification to tests
- Add getSchemaName option to generate PascalCase schema names directly
(McpUiOpenLinkRequestSchema instead of mcpUiOpenLinkRequestSchema)
- Remove redundant compile-time verification from types.ts
(already handled by generated test file's bidirectional expectType checks)
- Simplify types.ts from 235 to 57 lines (just re-exports)
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: add missing csp field, simplify schema generation
- Add missing csp field to McpUiSandboxResourceReadyNotification (regression from merge)
- Simplify generate-schemas.ts - remove complex .describe() conversion
- Document that ts-to-zod supports @description JSDoc tags for .describe()
- Improve z.looseObject() replacement with brace-counting for nested objects
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Co-Authored-By: Claude <noreply@anthropic.com>
* feat: add @description JSDoc tags for .describe() on schemas
Added @description tags to all interfaces and fields in spec.types.ts.
ts-to-zod now generates .describe() calls on all schema fields, making
descriptions available at runtime for introspection and JSON Schema generation.
Example:
/** @description URL to open in the host's browser */
url: string;
Generates:
url: z.string().describe("URL to open in the host's browser")
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Co-Authored-By: Claude <noreply@anthropic.com>
* feat: generate JSON Schema from Zod schemas
Added JSON Schema generation to the schema generation pipeline:
- Uses Zod v4's built-in toJSONSchema() to convert schemas
- Generates src/schema.json with all message types in $defs
- Includes descriptions from @description JSDoc tags
- Added export "./schema.json" to package.json
- Updated CI to verify schema.json is up-to-date
Use cases:
- Language-agnostic validation (Python, Go, Rust)
- Documentation generation (Redoc, Swagger UI)
- Code generation (quicktype)
- IDE autocomplete for JSON/YAML
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: rename schema.json to schema.generated.json
Renamed to match other generated files naming convention.
Export path unchanged: ./schema.json -> ./dist/src/schema.generated.json
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: rename schemas.generated.* to schema.generated.* (singular)
Consistent singular naming for all generated files:
- schema.generated.ts
- schema.generated.test.ts
- schema.generated.json
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: rename schemas.generated.* to schema.generated.* (singular)
Consistent singular naming for all generated files:
- schema.generated.ts
- schema.generated.test.ts
- schema.generated.json
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Co-Authored-By: Claude <noreply@anthropic.com>
* refactor: move generated files to src/generated/ with simpler names
Moved:
- src/schema.generated.ts → src/generated/schema.ts
- src/schema.generated.test.ts → src/generated/schema.test.ts
- src/schema.generated.json → src/generated/schema.json
Benefits:
- Cleaner organization (generated files isolated)
- Simpler names without .generated suffix
- Easier to gitignore if desired later
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: add missing type exports for backwards compatibility
Added missing exports that existed in main:
- McpUiTheme, McpUiThemeSchema
- McpUiDisplayMode, McpUiDisplayModeSchema
- McpUiResourceCsp, McpUiResourceCspSchema
- McpUiResourceMeta, McpUiResourceMetaSchema
Also fixed theme/displayMode to match original values:
- theme: 'light' | 'dark' (removed 'system')
- displayMode: 'inline' | 'fullscreen' | 'pip' (removed 'carousel')
Verified: all 47 exports from main are preserved with compatible types.
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Co-Authored-By: Claude <noreply@anthropic.com>
* fix: stage generated files after prettier in pre-commit hook
The pre-commit hook runs build (which generates schemas) then prettier
(which formats them). The formatted generated files weren't being staged,
causing CI to fail with 'Generated schemas are out of date'.
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* update generated files
* fix: run prettier after regenerating schemas in CI verification
CI was comparing unformatted generated output against formatted committed
files, causing false 'out of date' failures.
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---------
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* release: fix NPM_SECRET reference
* release: 0.0.5
* Add repository field to package.json
Required for npm provenance verification to link the package
to the GitHub repository.
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Co-Authored-By: Claude <noreply@anthropic.com>
* release: 0.0.6
---------
Co-authored-by: Claude <noreply@anthropic.com>
* Restructure threejs-server README to match marketing examples
- Update title format to "Example: Three.js App"
- Constrain screenshot width using table layout
- Add Features section with key capabilities
- Reorganize Running section with Tool Input subsection
- Add Architecture section describing server and app components
- Remove implementation-focused sections (WidgetProps, Creating a New Widget)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Add bun as devDependency to example packages
npm install now automatically installs bun, eliminating the need for
separate installation instructions. Removed manual bun install step
from customer-segmentation-server README.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Add start:http and start:stdio npm scripts to examples
For the 6 examples supporting --stdio transport, add explicit scripts:
- serve:http / serve:stdio for running the server
- start:http / start:stdio for build + serve
- start now aliases to start:http for backward compatibility
Update READMEs to document both transport options.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Default basic-host SERVERS to localhost:3001/mcp
- Change threejs-server default port from 3109 to 3001 for consistency
- Add default SERVERS value in basic-host serve.ts
- Document SERVERS env var in basic-host README
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Improve Examples section in README
Frame the three basic examples as foundational starting points and
add a link to the examples directory for additional demo apps.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
* Add npm publish workflow
- Add .github/workflows/npm-publish.yml triggered on GitHub releases
- Runs build and test jobs before publishing
- Uses NPM_TOKEN secret with OIDC provenance
- Smart npm tagging: latest, beta, or release-X.Y
- Add prepack hook to package.json for automatic builds
- Move bun from dependencies to devDependencies
- Add npm test step to CI workflow
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add CONTRIBUTING.md with maintainer publishing guide
- Getting started and development process for contributors
- Pull request guidelines
- Maintainer section with:
- Repository setup (NPM_TOKEN, release environment)
- Step-by-step release publishing instructions
- npm tag documentation (latest, beta, release-X.Y)
- Maintenance release workflow
- Pre-release testing via pkg-pr-new
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Co-Authored-By: Claude <noreply@anthropic.com>
* ...
* Potential fix for code scanning alert no. 9: Workflow does not contain permissions
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
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Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
New example demonstrating interactive 3D scene rendering with:
- show_threejs_scene tool with streaming code preview
- learn_threejs documentation tool
- Full WidgetProps interface for MCP App integration
- Reusable mcp-app-wrapper.tsx pattern
Also adds bun.lockb to .gitignore.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Fix compatibility with @modelcontextprotocol/sdk 1.23+
Implement required abstract methods `assertTaskCapability` and
`assertTaskHandlerCapability` in App and AppBridge classes. These
were added to the Protocol base class in SDK 1.23+.
Also regenerates package-lock.json with valid npm registry versions
(previously had non-existent vite@6.4.1).
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Co-Authored-By: Claude <noreply@anthropic.com>
* Add pkg-pr-new workflow for PR/commit publishing
Enables automatic publishing of any commit or PR to pkg.pr.new,
allowing consumers to install directly from git commits:
npm install https://pkg.pr.new/modelcontextprotocol/ext-apps/@modelcontextprotocol/ext-apps@<commit-or-pr>
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Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
Demo MCP App showcasing real-time OS metrics visualization with:
- Per-core CPU usage via stacked area chart (Chart.js)
- Memory usage bar gauge with color-coded thresholds
- Auto-polling at 2-second intervals
- Light/dark theme support
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Co-Authored-By: Claude <noreply@anthropic.com>
These legacy examples have been replaced by basic-host,
basic-server-react, and basic-server-vanillajs.
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Co-Authored-By: Claude <noreply@anthropic.com>
Demonstrates MCP App SDK usage with vanilla JavaScript (no framework),
providing parity with the existing basic-server-react example.
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Co-Authored-By: Claude <noreply@anthropic.com>
Introduce new example implementations to replace simple-host and
simple-server:
- basic-host: Reference host implementation with double-iframe sandbox
pattern for secure UI isolation (outer iframe validates and relays
messages, inner iframe renders untrusted tool UI via srcdoc)
- basic-server-react: MCP server example demonstrating tool registration
with linked UI resources and React UI using the useApp() hook
Build infrastructure updates:
- Add build:all script and simplify CI/pre-commit to use it
- Add examples:dev for watch-mode development workflow
Also change PostMessageTransport logging from info to debug level.
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Co-Authored-By: Claude <noreply@anthropic.com>
* Track package-lock.json for deterministic builds
- Remove package-lock.json from .gitignore
- Add CI check to verify no private registry URLs in package-lock.json
- Add fresh package-lock.json from registry.npmjs.org
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Co-Authored-By: Claude <noreply@anthropic.com>
* Mark package-lock.json as generated in .gitattributes
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Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
