Follow-up fixes for v2 taxonomy (#4071) (#4120)

- Add taxonomyVersion field to telemetry events to distinguish v1/v2 data
- Fix prompt/SafetyRules boundary by adding trailing newlines
- Consistent bullet formatting for signals in scope definitions

Co-authored-by: Harald Kirschner <digitarald@gmail.com>

Author: digitarald

src/extension/prompt/common/promptCategorizationTaxonomy.ts

@@ -277,7 +277,7 @@ function formatCategoryForPrompt(key: string, def: CategoryDefinition): string {
 		parts.push(`- Keywords: ${def.keywords.join(', ')}`);
 	}
 	if (def.signals?.length) {
-		parts.push(`Signals: ${def.signals.join(', ')}`);
+		parts.push(`- Signals: ${def.signals.join(', ')}`);
 	}
 	if (def.examples?.length) {
 		parts.push(`Examples: ${def.examples.map(e => `"${e}"`).join(', ')}`);

src/extension/prompt/node/promptCategorizer.ts

@@ -285,6 +285,7 @@ export class PromptCategorizerService implements IPromptCategorizerService {
 			"promptCategorization" : {
 				"owner": "digitarald",
 				"comment": "Classifies agent requests for understanding user intent and response quality",
+				"taxonomyVersion": { "classification": "SystemMetaData", "purpose": "FeatureInsight", "comment": "The taxonomy version used for classification (e.g. v2). Used to segment data when taxonomy keys change." },
 				"sessionId": { "classification": "SystemMetaData", "purpose": "FeatureInsight", "comment": "The chat session identifier" },
 				"requestId": { "classification": "SystemMetaData", "purpose": "FeatureInsight", "comment": "The extension-generated request identifier, matches panel.request requestId" },
 				"vscodeRequestId": { "classification": "SystemMetaData", "purpose": "FeatureInsight", "comment": "The VS Code chat request id, for joining with VS Code telemetry events" },
@@ -306,6 +307,7 @@ export class PromptCategorizerService implements IPromptCategorizerService {
 		this.telemetryService.sendMSFTTelemetryEvent(
 			'promptCategorization',
 			{
+				taxonomyVersion: 'v2',
 				sessionId: request.sessionId ?? '',
 				requestId: telemetryMessageId,
 				vscodeRequestId: request.id ?? '',
@@ -337,6 +339,7 @@ export class PromptCategorizerService implements IPromptCategorizerService {
 		this.telemetryService.sendInternalMSFTTelemetryEvent(
 			'promptCategorization',
 			{
+				taxonomyVersion: 'v2',
 				sessionId: request.sessionId ?? '',
 				requestId: telemetryMessageId,
 				vscodeRequestId: request.id ?? '',

src/extension/prompts/node/panel/promptCategorization.tsx

@@ -22,7 +22,7 @@ export class PromptCategorizationPrompt extends PromptElement<PromptCategorizati
 			'You are an expert classifier for AI coding assistant prompts. Classify developer requests in context of their workspace and active file across domain, intent, time estimate, and scope.',
 			'You MUST use the categorize_prompt tool to provide your classification.',
 			generateTaxonomyPrompt(),
-		].join('\n\n');
+		].join('\n\n') + '\n\n';
 
 		return (
 			<>