Add pr link validation for get_release_plan_for_spec_pr (#11984)

* Add pr link validation for get_release_plan_for_spec_pr

* Update tools/azsdk-cli/Azure.Sdk.Tools.Cli/Tools/ReleasePlan/ReleasePlanTool.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: smw-ms

tools/azsdk-cli/Azure.Sdk.Tools.Cli.Tests/Tools/ReleasePlanToolTests.cs

@@ -100,7 +100,7 @@ public async Task Test_Create_releasePlan_with_valid_inputs()
             Assert.IsNotNull(releaseplan);
             Assert.True(releaseplan.Contains("Microsoft.TeamFoundation.WorkItemTracking.WebApi.Models.WorkItem"));
 
-            releaseplan = await releasePlanTool.CreateReleasePlan(testCodeFilePath, "July 2025", "12345678-1234-5678-9012-123456789012", "12345678-1234-5678-9012-123456789012", "2025-01-01-preview", "https://github.com/Azure/azure-rest-api-specs/pull/35446", "beta", isTestReleasePlan: true);
+            releaseplan = await releasePlanTool.CreateReleasePlan(testCodeFilePath, "July 2025", "12345678-1234-5678-9012-123456789012", "12345678-1234-5678-9012-123456789012", "2025-01-01-preview", "https://github.com/Azure/azure-rest-api-specs-pr/pull/35446", "beta", isTestReleasePlan: true);
             Assert.IsNotNull(releaseplan);
             Assert.True(releaseplan.Contains("Microsoft.TeamFoundation.WorkItemTracking.WebApi.Models.WorkItem"));
         }
@@ -179,6 +179,25 @@ public async Task Test_Create_releasePlan_with_AZSDKTOOLS_AGENT_TESTING_false_re
             environmentHelperMock.Verify(x => x.GetBooleanVariable("AZSDKTOOLS_AGENT_TESTING", false), Times.Once);
         }
 
+        [Test]
+        public async Task Test_Get_Release_Plan_For_Pull_Request_with_valid_inputs()
+        {
+            var releaseplan = await releasePlanTool.GetReleasePlanForPullRequest("https://github.com/Azure/azure-rest-api-specs/pull/35446");
+            Assert.True(releaseplan.Contains("Status: Success"));
+            Assert.True(releaseplan.Contains("Release Plan"));
+
+            releaseplan = await releasePlanTool.GetReleasePlanForPullRequest("https://github.com/Azure/azure-rest-api-specs-pr/pull/35446");
+            Assert.True(releaseplan.Contains("Status: Success"));
+            Assert.True(releaseplan.Contains("Release Plan"));
+        }
+
+        [Test]
+        public async Task Test_Get_Release_Plan_For_Pull_Request_with_invalid_pr_link()
+        {
+            var releaseplan = await releasePlanTool.GetReleasePlanForPullRequest("invalid-pr-link");
+            Assert.True(releaseplan.Contains("Failed to get release plan details"));
+        }
+
         [Test]
         public async Task Test_Update_SDK_Details_In_Release_Plan()
         {

tools/azsdk-cli/Azure.Sdk.Tools.Cli/Tools/ReleasePlan/ReleasePlanTool.cs

@@ -59,18 +59,22 @@ public partial class ReleasePlanTool(IDevOpsService devOpsService, ITypeSpecHelp
         [McpServerTool(Name = "azsdk_get_release_plan_for_spec_pr"), Description("Get release plan for API spec pull request. This tool should be used only if work item Id is unknown.")]
         public async Task<string> GetReleasePlanForPullRequest(string pullRequestLink)
         {
+            var response = new GenericResponse();
+
             try
             {
-                List<string> releasePlanList = [];
-                var releasePlan = await devOpsService.GetReleasePlanAsync(pullRequestLink);
-                var _out = releasePlan == null ? "Failed to get release plan details." :
-                    $"Release Plan: {JsonSerializer.Serialize(releasePlan)}";
-                return output.Format(_out);
+                ValidatePullRequestUrl(pullRequestLink);
+                var releasePlan = await devOpsService.GetReleasePlanAsync(pullRequestLink) ?? throw new Exception("No release plan associated with pull request link");
+                response.Status = "Success";
+                response.Details.Add($"Release Plan: {JsonSerializer.Serialize(releasePlan)}");
+                return output.Format(response);
             }
             catch (Exception ex)
             {
                 logger.LogError("Failed to get release plan details: {exception}", ex.Message);
-                return output.Format($"Failed to get release plan details: {ex.Message}");
+                response.Status = "Failed";
+                response.Details.Add($"Failed to get release plan details: {ex.Message}");
+                return output.Format(response);
             }
         }
 
@@ -152,9 +156,8 @@ public async Task<string> GetReleasePlan(int workItem = 0, int releasePlanId = 0
             }
         }
 
-        private async Task ValidateCreateReleasePlanInputAsync(string typeSpecProjectPath, string serviceTreeId, string productTreeId, string specPullRequestUrl, string sdkReleaseType, string specApiVersion)
+        private void ValidatePullRequestUrl(string specPullRequestUrl)
         {
-            // Check for existing release plan for the given pull request URL.
             if (string.IsNullOrEmpty(specPullRequestUrl))
             {
                 throw new Exception("API spec pull request URL is required to create a release plan.");
@@ -167,6 +170,12 @@ private async Task ValidateCreateReleasePlanInputAsync(string typeSpecProjectPat
                 throw new Exception($"Invalid spec pull request URL '{specPullRequestUrl}' It should be a valid GitHub pull request to azure-rest-api-specs or azure-rest-api-specs-pr repo.");
             }
 
+        }
+
+        private async Task ValidateCreateReleasePlanInputAsync(string typeSpecProjectPath, string serviceTreeId, string productTreeId, string specPullRequestUrl, string sdkReleaseType, string specApiVersion)
+        {
+            ValidatePullRequestUrl(specPullRequestUrl);
+            // Check for existing release plan for the given pull request URL.
             logger.LogInformation("Checking for existing release plan for pull request URL: {specPullRequestUrl}", specPullRequestUrl);
             var existingReleasePlan = await devOpsService.GetReleasePlanAsync(specPullRequestUrl);
             if (existingReleasePlan != null && existingReleasePlan.WorkItemId > 0)