fix: let plan mode use the hub integration lookup

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

frontend/src/lib/components/copilot/chat/shared.test.ts

@@ -1972,6 +1972,14 @@ describe('createSearchHubScriptsTool', () => {
 })
 
 describe('getHubIntegrationTool', () => {
+	// The plan-mode gate fails closed, so a read-only tool that is not tagged is
+	// silently unusable while planning.
+	it('is usable while planning, like the hub search beside it', async () => {
+		const { getHubIntegrationTool, createSearchHubScriptsTool } = await import('./shared')
+		expect(getHubIntegrationTool.planModeSafe).toBe(true)
+		expect(createSearchHubScriptsTool().planModeSafe).toBe(true)
+	})
+
 	const doc = {
 		app: 'confluence',
 		display_name: 'Confluence',

frontend/src/lib/components/copilot/chat/shared.ts

@@ -1516,6 +1516,8 @@ function parseResourceTypeSchema(schema: unknown): unknown {
 
 export const getHubIntegrationTool = {
 	def: getHubIntegrationToolDef,
+	// Reads one hub document over a GET and writes nothing, so planning may use it.
+	planModeSafe: true,
 	fn: async ({ args, toolId, toolCallbacks }) => {
 		const { integration } = getHubIntegrationSchema.parse(args)
 		toolCallbacks.setToolStatus(toolId, { content: `Reading the ${integration} integration...` })