challenging to get agent mode to use active PR tool (#6859)

Fixes #6851

Author: alexr00

package.json

@@ -3772,7 +3772,7 @@
 				],
 				"toolReferenceName": "activePullRequest",
 				"displayName": "%languageModelTools.github-pull-request_activePullRequest.displayName%",
-				"modelDescription": "Get information about the active GitHub pull request. This information includes: comments, files changed, pull request title + description, pull request state, and pull request status checks/CI. When asked about the active pull request, do this first!",
+				"modelDescription": "Get information about the active or current GitHub pull request (PR). This information includes: comments, files changed, pull request title + description, pull request state, and pull request status checks/CI. When asked about the active pull request, do this first!",
 				"icon": "$(pull-request)",
 				"canBeReferencedInPrompt": true,
 				"userDescription": "%languageModelTools.github-pull-request_activePullRequest.description%",