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WIP: Add MCP Apps interactive UI extensions #920

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73fd0ed
docs: add MCP Apps feature specification
manusa Mar 13, 2026
e8738d1
feat: add MCP Apps infrastructure, viewer, and output layer
manusa Mar 13, 2026
94901f5
feat: add per-tool self-describing metrics and browser tests
manusa Mar 13, 2026
324beec
feat: add YAML syntax highlighting with Prism.js
manusa Mar 13, 2026
d266802
docs: clarify structuredContent is not added to model context
manusa Mar 13, 2026
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23 changes: 23 additions & 0 deletions Makefile
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Expand Up @@ -60,6 +60,10 @@ build-all-platforms: clean tidy format lint ## Build the project for all platfor
test: ## Run the tests
go test -count=1 -v ./...

.PHONY: test-browser
test-browser: ## Run browser-based tests (requires Chromium, auto-downloaded by Rod on first run)
go test -count=1 -v -tags browser ./pkg/mcpapps/...

.PHONY: test-update-snapshots
test-update-snapshots: ## Update test snapshots for toolset tests
UPDATE_TOOLSETS_JSON=1 go test -count=1 -v ./pkg/mcp
Expand Down Expand Up @@ -144,5 +148,24 @@ local-env-teardown: ## Tear down the local Kind cluster
print-git-tag-version: ## Print the GIT_TAG_VERSION
@echo $(GIT_TAG_VERSION)

##@ MCP Apps

HTM_VERSION ?= 3.1.1
CHART_JS_VERSION ?= 4.4.8
PRISM_VERSION ?= 1.30.0
MCP_APPS_VENDOR_DIR ?= pkg/mcpapps/vendor

.PHONY: vendor-js
vendor-js: ## Download vendored JavaScript dependencies for MCP Apps
@mkdir -p $(MCP_APPS_VENDOR_DIR)
curl -sL "https://cdn.jsdelivr.net/npm/htm@$(HTM_VERSION)/preact/standalone.umd.js" \
-o $(MCP_APPS_VENDOR_DIR)/htm-preact-standalone.umd.js
curl -sL "https://cdn.jsdelivr.net/npm/chart.js@$(CHART_JS_VERSION)/dist/chart.umd.min.js" \
-o $(MCP_APPS_VENDOR_DIR)/chart.umd.min.js
curl -sL "https://cdn.jsdelivr.net/npm/prismjs@$(PRISM_VERSION)/components/prism-core.min.js" \
-o $(MCP_APPS_VENDOR_DIR)/prism-core.min.js
curl -sL "https://cdn.jsdelivr.net/npm/prismjs@$(PRISM_VERSION)/components/prism-yaml.min.js" \
-o $(MCP_APPS_VENDOR_DIR)/prism-yaml.min.js

# Include build configuration files
-include build/*.mk
1 change: 1 addition & 0 deletions docs/README.md
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Expand Up @@ -31,6 +31,7 @@ Living documentation for implemented and planned features:

| Spec | Description | Status |
|------|-------------|--------|
| **[MCP Apps](specs/mcp-apps.wip.md)** | Interactive HTML-based UIs for tool results via MCP Apps extension | In Progress |
| **[Validation](specs/validation.md)** | Pre-execution validation layer (resource existence, schema, RBAC) | Implemented |

## Advanced Topics
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