feat(mcp): add patch_dashboard, get_dashboard_tile, search_dashboards tools (HDX-4139)

.changeset/mcp-dashboard-improvements.md

@@ -0,0 +1,21 @@
+---
+'@hyperdx/api': patch
+---
+
+feat(mcp): add patch_dashboard, get_dashboard_tile, search_dashboards tools
+
+Add three new MCP dashboard tools for granular operations:
+
+- `hyperdx_get_dashboard_tile` — retrieve a single tile by tileId
+- `hyperdx_patch_dashboard` — update name/tags and/or replace one tile
+  without resubmitting the full dashboard
+- `hyperdx_search_dashboards` — search by name and/or tags
+
+Fix empty parameter schema on patch/search tools caused by Zod
+`.refine()` wrapping. Document Lucene substring matching limitations
+prominently in tool descriptions and query guide prompt.
+
+**Breaking (minor):** Tile `name` on `hyperdx_save_dashboard` now requires
+at least 1 character (`.min(1)`). Previously empty string `""` was accepted
+and silently persisted as a blank title. Callers sending `name: ""` will
+now receive a validation error.

packages/api/jest.config.js

@@ -10,7 +10,7 @@ module.exports = {
   testEnvironment: 'node',
   verbose: true,
   rootDir: './src',
-  testMatch: ['**/__tests__/*.test.ts?(x)'],
+  testMatch: ['**/__tests__/**/*.test.ts?(x)'],
   testTimeout: 30000,
   moduleNameMapper: {
     '@/(.*)$': '<rootDir>/$1',