* fix(pdf-server): handle HTTP 200 fallback in remote range requests
When a remote server ignores the Range header and returns HTTP 200
with the full body, readPdfRange previously passed the entire file
(potentially 10MB+) through as a single chunk. This bypassed the
512KB limit because:
1. The error check `!response.ok && status !== 206` short-circuits
on 200 (ok is true), so the full body is read via arrayBuffer()
2. No Content-Range header on a 200 response leaves totalBytes at 0
3. hasMore becomes `offset + fullSize < 0` = false, so the client
stops after one oversized message
Fix: detect HTTP 200, cache the full body in memory (to avoid
re-downloading on every subsequent chunk request), then slice to the
requested range. The 512KB per-message limit is now enforced for all
remote URLs regardless of Range request support.
* Add session-based PDF caching with timeout cleanup and size limits
- Add dual timeout strategy for cache cleanup:
- 10s inactivity timeout (resets on each access)
- 60s max lifetime (absolute timeout from creation)
- Add 50MB max size limit with both Content-Length and actual size checks
- Add unit tests for caching behavior including:
- Cache on HTTP 200 response (no range support)
- No cache on HTTP 206 response (range supported)
- Slice cached data for subsequent range requests
- Reject PDFs exceeding size limits
- Export getCacheSize() and clearCache() for testing
* refactor(pdf-server): make PDF cache session-local via factory pattern
- Replace module-level global cache with createPdfCache() factory
- Each server instance now gets its own isolated cache
- Export PdfCache interface for type-safe usage
- Update tests to use per-test cache instances
- Add test verifying cache isolation between sessions
---------
Co-authored-by: Claude <noreply@anthropic.com>
Update `mcp-app.css`, `mcp-app.module.css`, and Svelte/Vue component
styles across all `basic-server-*` examples (and `integration-server`)
to use CSS variables instead of hardcoded values:
- Remove component-local color variables (`--color-primary`, etc.)
- Add derived spacing variables to `global.css` based on `--spacing-unit`
- Replace hardcoded spacing with `--spacing-xs/sm/md/lg` variables
- Add app-defined accent color variables (`--color-accent`,
`--color-text-on-accent`) to `global.css` for brand customization
- Use app accent colors for button styling
- Update button hover to use `color-mix()` for theme-adaptive lightening
- Change focus-visible to use `--color-ring-primary` outline
This makes the templates more instructive for users and AI coding agents
building new MCP Apps by showing how to consume host-provided variables
semantically, define app-specific accent colors, and create adaptive
styling that integrates with host themes.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Move the inline example from the `getUiCapability()` JSDoc to
`index.examples.ts` for type checking, following the pattern used
by other examples in the codebase.
The example now uses the correct MCP SDK API:
- `server.server.oninitialized` callback for post-initialization hook
- `server.server.getClientCapabilities()` to retrieve capabilities
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Update `global.css` in all `basic-server-*` examples (and `integration-server`
for consistency) to better serve as templates for AI coding agents scaffolding
new MCP Apps.
Changes:
- Use CSS custom properties (`--font-sans`, `--color-text-primary`, etc.) with
sensible fallbacks, enabling host design system integration
- Add `color-scheme: light dark` and `light-dark()` fallbacks for theme support
- Include comprehensive typography: h1-h6, body text, `code`/`pre`/`kbd`, `b`/`strong`
- Move `#server-time` styles from global CSS to component stylesheets (classes
instead of IDs for better CSS practices)
Updates E2E test selectors in `DYNAMIC_MASKS` to match the new class-based
selectors.
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
* docs: fix basic-host setup instructions in quickstart
Add missing root-level npm install and build steps before running
the basic-host example. Without these steps, the example fails because
it imports from dist/src/ which doesn't exist until the root package
is built.
Fixes setup failure when following quickstart tutorial.
* Update quickstart.md
Co-authored-by: Jonathan Hefner <jonathan@hefner.pro>
---------
Co-authored-by: Jonathan Hefner <jonathan@hefner.pro>
Clarifies when to use `localStorage` vs server-side storage for view state:
- Scope section intro to "recoverable" view state (easy to recreate)
- Add guidance for state representing user effort (bookmarks, annotations,
custom configurations) to use app-only tools instead
- Note that `viewUUID` should also be passed to app-only tools for scoping
- Clarify that example links are specifically for `localStorage` approach
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Document how to serve binary content (e.g., video) via MCP resources
as base64-encoded blobs. Includes server-side registration using the
`blob` field and client-side fetching with conversion to data URIs.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Documents the recommended approach for real-time dashboards that need to
poll server tools at regular intervals. Includes both Vanilla JS and
React examples with proper cleanup handling via `app.onteardown` and
`useEffect` cleanup functions respectively.
Also updates the "Tools that are private to Apps" section to mention
polling as a use case for app-only visibility.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Convert italic `_See example..._` text to `> [!NOTE]` callouts for better
visual prominence, and expand cross-references to include additional
relevant examples for each pattern.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The two-tool architecture previously had both tools returning identical
`SystemStats` data. This refactors them to properly separate concerns:
- `get-system-info` (Model-visible): Returns static system configuration
(hostname, platform, CPU model/count, total memory) sent once via
`ontoolresult`
- `poll-system-stats` (App-only): Returns dynamic metrics (per-core CPU
timing, memory usage, uptime) polled every 2 seconds
Moves `formatBytes()` and `formatUptime()` utilities to the client since
the server now returns raw values for client-side formatting.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Rename "host styling" section to "host context" and add safe area
insets handling
- Replace abstract `renderLoadingUI`/`renderFinalUI` example with
concrete code preview pattern for `ontoolinputpartial`
- Rename callback parameter `params` → `ctx` for clarity across all
`onhostcontextchanged` handlers
- Add CSS snippet for fullscreen border-radius handling
- Expand display mode example to show `availableDisplayModes` check
- Fix minor typos and wording consistency
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The `extractRegion()` function in `sync-snippets.ts` used `indexOf()` to
find region markers like `//#region persistData`. This caused incorrect
matching when one region name was a prefix of another—searching for
`persistData` would match `//#region persistDataServer` first if it
appeared earlier in the file.
The fix detects the file's line ending style and appends it to region
markers, ensuring exact matches:
- `//#region persistData\n` no longer matches `//#region persistDataServer\n`
This corrects `docs/patterns.md` where the `persistData` code fence was
incorrectly showing server-side code instead of client-side localStorage
helpers.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The tool input JSON examples for Gradient and Kaleidoscope had literal
newlines in the string values, making them invalid JSON. Changed to use
`\n` escape sequences to match the Interactive Julia Set example.
Fixes regression from 574a768.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Apply the same pattern as map-server: capture the PDF canvas as a
scaled-down screenshot and include it in the model context update
when the host supports image content.
- Check host capability via getHostCapabilities().updateModelContext.image
- Scale canvas to max 768px dimension to reduce token usage
- Convert to base64 PNG and include with text content
* chore: bump ext-apps to 1.0.1
* chore: update examples to depend on ext-apps ^1.0.1
* fix: revert examples to ext-apps ^1.0.0 and fix cheerio version
- Revert ext-apps dependency to ^1.0.0 (works with 1.0.1 once published)
- Fix accidental cheerio bump in wiki-explorer-server
- Remove broken override attempt
* fix: allow compatible semver ranges in version check
The check-versions script now accepts any compatible semver range,
not just exact version matches. For example, ^1.0.0 is allowed when
root version is 1.0.1, since semver compatibility is maintained.
* style: fix indentation in package.json
* fix(examples): use npm reference for ext-apps dependency
Replace local path '../..' with '^1.0.0' npm reference in all example
packages. The local path was accidentally published to npm, causing
npm install to hang when installing server-* packages.
Bump versions to 1.0.1 for all public packages to fix the published
versions.
Fixes npm install hanging issue in dependent projects like
example-remote-server.
Note: npm workspaces automatically resolves the dependency to the
local package during development, so no overrides are needed.
* fix: update zod to 4.x in transcript-server and fix update-lock:docker script
- Update transcript-server to use zod ^4.1.13 for compatibility
- Fix update-lock:docker script to properly clean workspace node_modules
- Regenerate package-lock.json with clean npmjs.org URLs
The main branch of the MCP Python SDK has removed `FastMCP` (likely
moving it to the standalone `fastmcp` package), causing import errors.
Pin to mcp>=1.26.0 which is the latest release that still includes
`mcp.server.fastmcp`.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
* fix(qr-server): use stable mcp SDK from PyPI
- Replace git-based mcp dependency with mcp>=1.26.0 from PyPI for stability
- Remove TransportSecuritySettings that was blocking browser connections
- Keep simple FastMCP initialization like other Python examples
Fixes ModuleNotFoundError and 403 Forbidden errors when connecting from basic-host
* fix(qr-server): use stable mcp SDK from PyPI
- Replace git-based mcp dependency with mcp>=1.26.0 from PyPI
- Add stateless_http=True for proper HTTP transport handling
- Remove TransportSecuritySettings that blocked browser connections
* chore: add stable spec release 2026-01-26
- Use git mv to copy specification from draft to specification/2026-01-26/apps.mdx (preserves history)
- Update status from 'Draft' to 'Stable (2026-01-26)'
- Add specification version table to README
- Update Resources section with links to both stable and draft specs
* chore: bump version to 1.0.0
- Update main package version from 0.4.2 to 1.0.0
- Update all example package versions to 1.0.0
- Regenerate package-lock.json
* prettier
* chore: align protocol version with spec release 2026-01-26
- Add 'Protocol Version: 2026-01-26' to spec header
- Update LATEST_PROTOCOL_VERSION from '2025-11-21' to '2026-01-26'
- Update spec examples to use '2026-01-26' protocol version
- Add '2025-11-21' to SUPPORTED_PROTOCOL_VERSIONS for backwards compatibility
* chore: update spec references to stable 2026-01-26
- Update typedoc.config.mjs navigation link
- Update docs/overview.md spec links (10 occurrences)
- Update plugins/mcp-apps/skills/create-mcp-app/SKILL.md spec link
- Update src/spec.types.ts @see links
- Update AGENTS.md spec path
- Regenerate src/generated/schema.ts with updated links
* chore: simplify versioning - first stable release
- Remove backwards compatibility version (2025-11-21) - this is the first stable release
- Remove redundant 'Protocol Version' header - spec version IS the protocol version
* chore: add history reference comment to stable spec
Update links from `claude.ai/docs/` to `claude.com/docs/` for the
remote and local MCP server configuration documentation.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* docs: add local development MCP client configuration to READMEs
Add instructions for configuring MCP clients to use locally-cloned
and modified servers. This allows developers to test local changes
with MCP clients like Claude Desktop or VS Code.
- Top-level README: Added 'Local Development' section after npx config
- All TypeScript examples: Added 'Local Development' subsection with
bash one-liner that builds and runs the server
- Python examples (qr-server, say-server): Added local path config
* docs: include all servers in local development config
* docs: use bash wrapper for Python server configs to enable tilde expansion
* Adding a simple (bad) pdf icon for directory (#330)
* chore: bump version to 0.4.2
- Update package version from 0.4.1 to 0.4.2
- Pin @types/node to 22.10.0 for dev compatibility
- Override seroval to ^1.4.1 to fix security vulnerabilities
- Use '*' for workspace SDK dependency (works with unpublished versions)
* fix(e2e): update Map Server display name to CesiumJS Map Server (#324)
* fix(test): update map-server test to expect 'CesiumJS Map Server'
The server name was renamed but the E2E test config was not updated.
* fix: change in another file
---------
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Olivier Chafik <ochafik@anthropic.com>
* feat(server): add getUiCapability helper for capability negotiation (#313)
* feat(server): add hasUiSupport/getUiCapability for experimental+extensions
Support double-tagging for MCP Apps capability negotiation:
- Check both experimental and extensions fields in client capabilities
- Add hasUiSupport() to easily check if client supports MCP Apps
- Add getUiCapability() to retrieve the capability settings
- Update spec to document both capability locations
This enables forward compatibility as MCP transitions from experimental
to the extensions field (SEP-1724).
Claude-Generated-By: Claude Code (cli/claude-opus-4-5=100%)
Claude-Steers: 0
Claude-Permission-Prompts: 0
Claude-Escapes: 0
* fix: update @types/node version in package-lock.json
Replace invalid 22.19.5/22.19.6/22.19.7 versions with valid 22.19.3
* docs(spec): clarify hosts SHOULD double-tag, servers SHOULD check both
- Hosts SHOULD advertise capabilities in both experimental and extensions
- Servers SHOULD check both locations, preferring extensions when present
- Updated example to show double-tagging pattern
* chore: remove double-tagging recommendation, keep hasUiSupport helper
Reverts the spec changes that recommended clients double-tag capabilities
in both experimental and extensions fields. The helper functions remain
as they're useful for checking capability in either location.
* refactor(server): simplify to only getUiCapability, remove hasUiSupport
- Remove hasUiSupport function (use getUiCapability directly)
- Remove double-tagging logic (only check extensions field)
- Add ClientCapabilitiesWithExtensions type using SDK's ClientCapabilities
- Update spec to use getUiCapability
- Simplify tests
* fix: update @see link to getUiCapability
* refactor(server): inline ClientCapabilitiesWithExtensions type in getUiCapability
* refactor: move McpUiClientCapabilities to spec.types.ts
* fix: update playwright docker image to v1.58.0
* fix: use -i instead of -it for docker commands (no TTY needed)
* fix: Python server dependency resolution and Docker host validation (#333)
* fix(say-server): add --index flag to uv run for PyPI resolution
The pocket-tts dependency wasn't resolving without explicit --index flag
when invoked via npm scripts.
* fix(qr-server): allow Docker bridge IP in transport security
Add 172.17.0.1:* to allowed_hosts to fix 421 Misdirected Request errors
when the server is accessed from Docker containers.
* feat(basic-host): Add theme toggle and MCP style variables (#336)
* feat(basic-host): add theme toggle and MCP style variables
Add theme support to basic-host example:
- theme.ts: Global theme manager with light/dark toggle
- host-styles.ts: Full set of MCP CSS variables using light-dark()
- ThemeToggle component with sun/moon icons
- Theme-aware CSS using CSS custom properties
- Pass theme + styles to apps via hostContext
- Notify apps when theme changes via sendHostContextChange
Apps now receive:
- hostContext.theme: 'light' | 'dark'
- hostContext.styles.variables: All 60+ MCP CSS variables
- onhostcontextchanged notifications when theme changes
* test: update e2e goldens for theme changes
* [MCP Apps] Add appCapabilities.availableDisplayModes documentation to spec (#331)
* Add appCapabilities.availableDisplayModes documentation to spec
Document the availableDisplayModes field in McpUiAppCapabilities that allows
apps to declare which display modes they support. This enables hosts to
compute the intersection of host and app capabilities and only offer
appropriate display mode controls.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Address PR review feedback
- Change "Guest UI" to "View" terminology
- Add "View" prefix to availableDisplayModes heading for disambiguation
- Remove intersection logic - host only checks its own supported modes
- Remove assumption that apps must support inline mode
- Simplify host behavior to honor/reject based on its own capabilities
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Add appCapabilities.availableDisplayModes to types
- Add `availableDisplayModes` field to `McpUiAppCapabilities` so apps can
declare which display modes they support
- Change `HostContext.availableDisplayModes` type from `string[]` to
`McpUiDisplayMode[]` for type safety
- Regenerate schemas
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Address Olivier's feedback - consolidate display mode docs
- Remove separate "App Capabilities" section for availableDisplayModes
- Add display mode requirements to existing ui/request-display-mode section:
- Host MUST NOT switch View to mode not in appCapabilities.availableDisplayModes
- Host MAY decline requests from Views that didn't declare modes
- View MUST declare supported modes during initialization
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Restore McpUiAppCapabilities docs and fix display mode clause
- Restore McpUiAppCapabilities interface documentation with availableDisplayModes
- Restore "View MUST check if the requested mode is in availableDisplayModes
from host context" clause that was accidentally removed
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Create unified Display Modes section
Consolidate all display mode documentation into a single section:
- Display mode types (inline, fullscreen, pip)
- Declaring support from View (appCapabilities.availableDisplayModes)
- Declaring support from Host (HostContext.availableDisplayModes)
- Requesting changes (ui/request-display-mode)
- Notifying changes (ui/notifications/host-context-changed)
- All MUST/SHOULD requirements for View and Host behavior
The ui/request-display-mode in Requests section now references
the Display Modes section for behavior details.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Remove mode coercion clause from display modes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Regenerate schemas with correct version
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
---------
Co-authored-by: Claude <noreply@anthropic.com>
* feat(say-server): add light/dark theme support (#338)
- Add importmap entry for main SDK exports (applyDocumentTheme, etc.)
- Import and apply host theme and styles on context changes
- Apply initial host context theme/styles when app connects
- Update CSS to use [data-theme="dark"] selector for host-provided themes
- Keep @media prefers-color-scheme as fallback for standalone mode
- Add color-scheme meta tag for native element theming
* fix: followup app -> view terminology (#339)
* chore: husky env fix, version pins, update-lock:docker script (#341)
* fix(husky): load Node.js env for GUI apps + add update-lock:docker script
Cherry-picked non-e2e changes from ochafik/fix-e2e-flaky-tests:
- Load nvm/fnm/volta/homebrew paths in pre-commit for GitHub Desktop
- Add update-lock:docker script to regenerate lockfile with public registry
* pin package versions for dev compatibility
- solid-js: 1.9.10
- caniuse-lite: 1.0.30001763
- cheerio: 1.1.2
- electron-to-chromium: 1.5.267
- @playwright/test: 1.57.0
- playwright: 1.57.0
- playwright-core: 1.57.0
* regen
* fix: pin @types/node to existing version and regenerate lockfile
- Fix @types/node 20.19.28 -> 20.19.27 (typo, version didn't exist)
- Regenerate package-lock.json to resolve versions available on both
public npm and Anthropic artifactory registries
* fix(basic-server-solid): bump solid-js 1.9.10 -> 1.9.11 to fix seroval vulnerabilities
* fix: pin seroval to 1.4.1 for dev compatibility
* Refactor server startup functions
Rename `startServer` to `startStreamableHTTPServer` and add a new
`startStdioServer` helper to make the transport type explicit. Remove
the `ServerOptions` interface in favor of reading `PORT` directly from
the environment inside the function (defaulting to `3001`).
Also update Python examples to default to port `3001` for consistency.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Support full-file inclusion in synced code snippets
Previously, the script only supported extracting regions from `.ts/.tsx`
files using the `#regionName` syntax. Now it also supports including
entire files without a region specifier, enabling sync of any file type
(JSON, YAML, shell scripts, etc.) into documentation.
Changes:
- Make `#regionName` optional in the `source=""` attribute
- Accept any fence language (not just `ts`/`tsx`)
- Simplify cache to flat map with composite keys
- Add validation error for region extraction on non-TypeScript files
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Rewrite Quickstart guide with type-checked code examples
Rewrites the Quickstart tutorial to provide a more focused, step-by-step
introduction to building MCP Apps. The guide now uses synced code fences
that pull from `examples/quickstart/`, ensuring all code shown in the
documentation is type-checked and tested.
Key improvements:
- Clearer project setup instructions with explicit commands
- Streamlined explanations of the tool + resource registration pattern
- Added screenshot showing the completed app
- E2E test coverage validates the example works end-to-end
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Add MCP Apps Overview document
Adds `docs/overview.md` covering the core concepts: architecture,
lifecycle, UI resources, bidirectional communication, theming, display
modes, and security. Includes mermaid flowchart and sequence diagrams.
Also adds the `@boneskull/typedoc-plugin-mermaid` TypeDoc plugin for
mermaid diagram support. However, the plugin handles HTML entities from
TypeDoc incorrectly, so `scripts/typedoc-plugin-fix-mermaid-entities.mjs`
decodes HTML entities before the plugin processes them.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Add Agent Skills installation guide
Add `docs/agent-skills.md` with installation instructions for multiple AI
coding agents including Claude Code, VS Code/Copilot, Gemini CLI, Cline,
and Goose. The guide provides three installation methods: Claude Code
plugin, Vercel Skills CLI (`npx skills add`), and manual installation.
Update `README.md` to link to the new guide and reframe the plugin
section around the broader "Agent Skills" concept.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Polish OpenAI migration reference for readability
Add framing prose to the migration guide to improve navigation:
- Expanded intro describing document purpose and how to use it
- Added note about features marked "Not yet implemented"
- Added brief transition sentences before Server-Side and Client-Side sections
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Fix mermaid diagram arrowheads not rendering
The `@boneskull/typedoc-plugin-mermaid` creates both dark and light theme
variants of each diagram, each with identical marker IDs (e.g., `#arrowhead`).
When mermaid renders SVGs at runtime, lines reference `url(#arrowhead)`, but
the browser resolves this to the first match in document order — the hidden
dark-theme SVG — causing arrows to be invisible.
The fix removes dark-theme `<div class="mermaid dark">` elements at build time,
leaving only one SVG per diagram with unique marker IDs. A CSS filter
(`filter: invert(1) hue-rotate(180deg)`) handles dark mode styling instead.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* fix(docs): improve OpenAI migration guide accuracy (#349)
- Add missing setOpenInAppUrl API to 'Not Yet in MCP Apps' section
- Clarify Event Handling table: specify exact OpenAI properties
(toolInput/toolOutput) instead of vague 'window.openai.*'
- Improve notes to distinguish sync property reads vs callbacks
* Add Testing MCP Apps guide
Document how to test MCP Apps using `basic-host` and MCP Apps-compatible
hosts like Claude.ai and VS Code Copilot. Cover debugging features for
`basic-host`, and using `cloudflared` to expose local servers for remote
hosts.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Fix `onhostcontextchanged` handler invocation in examples
`App.onhostcontextchanged` is a setter-only property with no getter.
TypeScript doesn't prevent reading from setter-only properties, so
`app.onhostcontextchanged?.(ctx)` compiles but silently returns
`undefined` at runtime.
Extract the handler into a named `handleHostContextChanged()` function
and call it directly after `connect()`, matching the pattern used in
`basic-server-vanillajs` and other examples.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Expand Agent Skills guide
Add intro explaining what Agent Skills are and link to the two skill
files (`create-mcp-app`, `migrate-oai-app`). Reorganize headings and add
"Invoke a Skill" and "Test Your App" sections. Update `README.md` link
text and add tip to quickstart suggesting agent skills as an alternative.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* fix(e2e): improve test stability and developer experience (#337)
* fix(e2e): add masks for dynamic content and increase timeouts for slow servers
- Add HOST_MASKS for Tool Input/Result panels with dynamic timestamps
- Add say-server to SLOW_SERVERS (10s) for TTS model download
- Add say-server to EXTRA_WAIT_MS (30s) in generate-grid-screenshots
* feat: add update-lock:docker script to regenerate lockfile with public registry
* pin package versions for dev compatibility
* feat(basic-host): add ?theme=hide query param to hide theme toggle in screenshots
- Add hideThemeToggle param to getQueryParams()
- Conditionally render ThemeToggle based on ?theme=hide
- Update e2e tests to use ?theme=hide for consistent screenshots
* update screenshots
* update screenshots
* fix(husky): load Node.js environment for GUI apps like GitHub Desktop
* fix(e2e): increase map-server wait time to 15s for tile loading
* fix(e2e): increase waitForAppLoad timeout to 30s for nested iframe loading
* ci: add workflow to update e2e snapshots
* ci: trigger snapshot update on push to this branch
* chore: update e2e snapshots [skip ci]
* ci: trigger CI after snapshot update
* style: fix prettier formatting in update-snapshots workflow
* fix: pin seroval, seroval-plugins, and solid-js for dev compatibility
---------
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
* Improve README structure and clarity
Add "Why MCP Apps?" section to explain the motivation upfront. Reorganize
the "How It Works" section to lead with tool definition. Rename "Overview"
to "Using the SDK" and add "For" prefix to audience headings.
Restructure the Examples section with clearer subsections for running
examples with `basic-host` vs MCP clients using stdio transport. Move the
`qr` server note outside the collapsed details block.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Add Codex and Goose to documentation
Add Codex to the list of agents supporting skills in `agent-skills.md`.
Add Goose to the list of supported clients in `testing-mcp-apps.md` and
rename "VS Code Copilot" to "VS Code (Insiders)" for accuracy.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* chore: regenerate lockfile with public registry, use ^0.4.2 for ext-apps deps
* fix: update quickstart example to use workspace reference
* chore: remove internal registry references from lockfile
* feat(ci): add /update-snapshots comment trigger for PRs
- Comment '/update-snapshots' on any PR to update E2E snapshots
- Adds rocket reaction to acknowledge the command
- Comments back with result (updated or no changes needed)
- Removes hardcoded branch trigger
- Keeps workflow_dispatch for manual runs
* docs: document /update-snapshots PR comment trigger
* fix: pin @hono/node-server to 1.19.7 for dev compatibility
SDK 1.25.3 requires @hono/node-server@^1.19.9 which doesn't exist
on the public npm registry (latest is 1.19.7).
* fix: pin @modelcontextprotocol/sdk to 1.25.2
SDK 1.25.3 has broken dependency on @hono/node-server@^1.19.9
which doesn't exist on public npm registry.
* fix: restore flexible SDK peerDep range (^1.24.0)
devDependencies stays pinned to 1.25.2 for our builds,
but peerDependencies should allow users flexibility.
* fix: pin @types/node to avoid unpublished versions
- Pin quickstart @types/node to 22.19.5 (latest public 22.x)
- Add @types/node override to root package.json
- Regenerate lockfile with public registry only
---------
Co-authored-by: Tobin South <tobin.south@gmail.com>
Co-authored-by: Liad Yosef <liady@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: martinalong <martinalong10@gmail.com>
Co-authored-by: Ido Salomon <idosalomon@gmail.com>
Co-authored-by: Jonathan Hefner <jonathan@hefner.pro>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
* feat(map-server): add screenshot to updateModelContext and remove rounded corners
- Remove border-radius and overflow: hidden from cesiumContainer CSS
- Capture map canvas as base64 PNG and include in updateModelContext
- Only include image if host supports image content blocks
* feat(map-server): reduce screenshot size for fewer tokens
- Scale down to max 256px (longest dimension)
- Use PNG for better quality with map graphics
* prettier
Add Codex to the list of agents supporting skills in `agent-skills.md`.
Add Goose to the list of supported clients in `testing-mcp-apps.md` and
rename "VS Code Copilot" to "VS Code (Insiders)" for accuracy.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add "Why MCP Apps?" section to explain the motivation upfront. Reorganize
the "How It Works" section to lead with tool definition. Rename "Overview"
to "Using the SDK" and add "For" prefix to audience headings.
Restructure the Examples section with clearer subsections for running
examples with `basic-host` vs MCP clients using stdio transport. Move the
`qr` server note outside the collapsed details block.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* fix(e2e): add masks for dynamic content and increase timeouts for slow servers
- Add HOST_MASKS for Tool Input/Result panels with dynamic timestamps
- Add say-server to SLOW_SERVERS (10s) for TTS model download
- Add say-server to EXTRA_WAIT_MS (30s) in generate-grid-screenshots
* feat: add update-lock:docker script to regenerate lockfile with public registry
* pin package versions for dev compatibility
* feat(basic-host): add ?theme=hide query param to hide theme toggle in screenshots
- Add hideThemeToggle param to getQueryParams()
- Conditionally render ThemeToggle based on ?theme=hide
- Update e2e tests to use ?theme=hide for consistent screenshots
* update screenshots
* update screenshots
* fix(husky): load Node.js environment for GUI apps like GitHub Desktop
* fix(e2e): increase map-server wait time to 15s for tile loading
* fix(e2e): increase waitForAppLoad timeout to 30s for nested iframe loading
* ci: add workflow to update e2e snapshots
* ci: trigger snapshot update on push to this branch
* chore: update e2e snapshots [skip ci]
* ci: trigger CI after snapshot update
* style: fix prettier formatting in update-snapshots workflow
* fix: pin seroval, seroval-plugins, and solid-js for artifactory compatibility
---------
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Add intro explaining what Agent Skills are and link to the two skill
files (`create-mcp-app`, `migrate-oai-app`). Reorganize headings and add
"Invoke a Skill" and "Test Your App" sections. Update `README.md` link
text and add tip to quickstart suggesting agent skills as an alternative.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
