fix(examples): use server.registerTool for non-UI tool + fix missing imports #173
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The learn_threejs tool doesn't have a UI component - it only returns documentation text. Using registerAppTool without _meta causes a runtime error when the function tries to access config._meta.ui. Fixes crash: "Cannot read property 'ui' of undefined" 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
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jonathanhefner
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Dec 16, 2025
…ports All example servers were using registerAppTool and registerAppResource but not importing them from @modelcontextprotocol/ext-apps/server, causing "ReferenceError: registerAppTool is not defined" at runtime. Affected servers: - budget-allocator-server - cohort-heatmap-server - customer-segmentation-server - scenario-modeler-server - system-monitor-server - threejs-server - wiki-explorer-server 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
ochafik
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Dec 17, 2025
The learn_threejs tool was added in #173, which adds a second option in the Tool dropdown. This updates the golden snapshot to match. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
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Summary
server.registerToolfor the non-UIrender-threejs-codetool instead ofregisterAppTool, since it doesn't have an associated UI resourceregisterAppToolandregisterAppResourceimports that were causing "ReferenceError: registerAppTool is not defined" at runtimeAffected servers for import fix:
Test plan
npm run examples:start🤖 Generated with Claude Code